From 6b1b3533489ce10b183c9df6333ea57e4640743c Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Mon, 2 Aug 2021 02:46:57 -0700
Subject: [PATCH 01/59] aes and argon2

---
 code/package.json | 2 ++
 code/yarn.lock    | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/code/package.json b/code/package.json
index 3fad3c75..483bb746 100644
--- a/code/package.json
+++ b/code/package.json
@@ -14,6 +14,8 @@
     "@harmony-js/account": "^0.1.57",
     "@openzeppelin/contracts": "^4.2.0",
     "@truffle/hdwallet-provider": "^1.4.0",
+    "aes-js": "^3.1.2",
+    "argon2-browser": "git+https://github.com/polymorpher/argon2-browser#1.21.0-hpc",
     "axios": "^0.21.1",
     "dotenv": "^10.0.0",
     "ethjs-unit": "^0.1.6",
diff --git a/code/yarn.lock b/code/yarn.lock
index 30fd56ac..fcb27e0b 100644
--- a/code/yarn.lock
+++ b/code/yarn.lock
@@ -2462,6 +2462,10 @@ anymatch@~3.1.2:
     normalize-path "^3.0.0"
     picomatch "^2.0.4"
 
+"argon2-browser@git+https://github.com/polymorpher/argon2-browser#1.21.0-hpc":
+  version "1.21.0-hpc"
+  resolved "git+https://github.com/polymorpher/argon2-browser#609a1518d4158c3732fe1e9a7f7b466ef41b76b4"
+
 argparse@^1.0.7:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.10.tgz#bcd6791ea5ae09725e17e5ad988134cd40b3d911"

From 8d32fe869f4a71ecd95052cc548344e5b2a2042b Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Mon, 2 Aug 2021 02:47:39 -0700
Subject: [PATCH 02/59] batch hash functions; genOTP - do not compute report
 interval inside

---
 code/lib/util.js | 38 +++++++++++++++++++++++++++++++++-----
 1 file changed, 33 insertions(+), 5 deletions(-)

diff --git a/code/lib/util.js b/code/lib/util.js
index 28c6e916..d502654d 100644
--- a/code/lib/util.js
+++ b/code/lib/util.js
@@ -3,6 +3,8 @@ const createKeccakHash = require('keccak')
 const Conversion = require('ethjs-unit')
 const sha256 = require('fast-sha256')
 const BN = require('bn.js')
+const argon2 = require('argon2-browser')
+const base32 = require('hi-base32')
 const STANDARD_DECIMAL = 18
 
 const utils = {
@@ -16,6 +18,19 @@ const utils = {
 
   sha256,
 
+  // batched sha256
+  sha256b: (input, { progressObserver, batchSize = 32 }) => {
+    const n = input.length / batchSize
+    const output = new Uint8Array(n * 32)
+    for (let i = 0; i < input.length; i += batchSize) {
+      output.set(sha256(input.subarray(i * batchSize, i * batchSize + batchSize)), i * 32)
+      if (progressObserver) {
+        progressObserver(i, n)
+      }
+    }
+    return output
+  },
+
   hexToBytes: (hex, length, padRight) => {
     if (!hex) {
       return
@@ -65,9 +80,19 @@ const utils = {
     return indexWithNonce
   },
 
-  genOTP: ({ seed, interval = 30000, counter = Math.floor(Date.now() / interval), n = 1, progressObserver }) => {
-    const reportInterval = Math.floor(n / 100)
+  processOtpSeed: (seed) => {
+    if (seed.constructor.name !== 'Uint8Array') {
+      if (typeof seed !== 'string') {
+        throw new Error('otpSeed must be either string (Base32 encoded) or Uint8Array')
+      }
+      const bn = base32.decode.asBytes(seed)
+      seed = new Uint8Array(bn)
+    }
+    seed = seed.slice(0, 20)
+    return seed
+  },
 
+  genOTP: ({ seed, interval = 30000, counter = Math.floor(Date.now() / interval), n = 1, progressObserver }) => {
     const codes = new Uint8Array(n * 4)
     const v = new DataView(codes.buffer)
     const b = new DataView(new ArrayBuffer(8))
@@ -88,9 +113,7 @@ const utils = {
       const r = c % 1000000
       v.setUint32(i * 4, r, false)
       if (progressObserver) {
-        if (i % reportInterval === 0) {
-          progressObserver(i, n, 0)
-        }
+        progressObserver(i, n)
       }
     }
     return codes
@@ -124,5 +147,10 @@ const utils = {
     }
   },
 
+  argon2: async (input, { salt = new Uint8Array(8), progressObserver, batchSize = 32 } = {}) => {
+    const { result } = await argon2.hash({ pass: input, batchSize, salt, progressObserver })
+    return result
+  }
+
 }
 module.exports = utils

From 3a68c25176ecdcfea705a8da2b8ab8c9b0c9c7da Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Mon, 2 Aug 2021 02:50:46 -0700
Subject: [PATCH 03/59] double otp and controlled randomness support; argon2
 support; function for recover randomness

---
 code/lib/onewallet.js | 120 +++++++++++++++++++++++++++++++-----------
 1 file changed, 88 insertions(+), 32 deletions(-)

diff --git a/code/lib/onewallet.js b/code/lib/onewallet.js
index 7b81a5f5..97c215f6 100644
--- a/code/lib/onewallet.js
+++ b/code/lib/onewallet.js
@@ -1,50 +1,76 @@
-const fastSHA256 = require('fast-sha256')
-const base32 = require('hi-base32')
+const { sha256: fastSHA256, sha256b, processOtpSeed } = require('./util')
 // eslint-disable-next-line no-unused-vars
 const { hexView, genOTP, hexStringToBytes, keccak, bytesEqual } = require('./util')
 const BN = require('bn.js')
+const AES = require('aes-js')
 
-const computeMerkleTree = ({ otpSeed, effectiveTime = Date.now(), duration = 3600 * 1000 * 24 * 365, progressObserver, otpInterval = 30000, maxOperationsPerInterval = 1 }) => {
+const computeMerkleTree = ({
+  otpSeed,
+  otpSeed2, // can be null
+  effectiveTime = Date.now(),
+  duration = 3600 * 1000 * 24 * 365,
+  progressObserver, otpInterval = 30000,
+  maxOperationsPerInterval = 1,
+  randomness = 0, // number of bits for Controlled Randomness. 17 bits is recommended for the best balance between user experience and security. It maps to 2^17 = 131072 possibilities.
+  hasher = sha256b // must be a batch hasher
+
+}) => {
   maxOperationsPerInterval = 2 ** Math.ceil(Math.log2(maxOperationsPerInterval))
   maxOperationsPerInterval = Math.min(16, maxOperationsPerInterval)
   const height = Math.ceil(Math.log2(duration / otpInterval * maxOperationsPerInterval)) + 1
   const n = Math.pow(2, height - 1)
   const reportInterval = Math.floor(n / 100)
   const counter = Math.floor(effectiveTime / otpInterval)
-  let seed = otpSeed
-  if (seed.constructor.name !== 'Uint8Array') {
-    if (typeof seed !== 'string') {
-      throw new Error('otpSeed must be either string (Base32 encoded) or Uint8Array')
-    }
-    const bn = base32.decode.asBytes(seed)
-    seed = new Uint8Array(bn)
-  }
-  seed = seed.slice(0, 20)
+  const seed = processOtpSeed(otpSeed)
+  const seed2 = otpSeed2 && processOtpSeed(otpSeed2)
   // console.log('Generating Wallet with parameters', { seed, height, otpInterval, effectiveTime })
-  const otps = genOTP({ seed, counter, n, progressObserver })
-  // 4 bytes for OTP, 2 bytes for nonce, 26 bytes for seed hash
-  const hseed = fastSHA256(seed).slice(0, 26)
-  const leaves = new Uint8Array(n * 32)
-  const buffer = new Uint8Array(32)
+  const buildProgressObserver = (max) => (i, n) => i % reportInterval === 0 && progressObserver(i, max || n, 0)
+  const otps = genOTP({ seed, counter, n, progressObserver: buildProgressObserver(seed2 ? n * 2 : n) })
+  const otps2 = seed2 && genOTP({ seed: seed2, counter, n, progressObserver: buildProgressObserver(seed2 ? n * 2 : n) })
+  // legacy mode: no randomness, no seed2: 26 bytes for seed hash, 2 bytes for nonce, 4 bytes for OTP
+  // single otp mode: 22 bytes for seed hash, 2 bytes for nonce, 4 bytes for OTP, 4 bytes for randomness
+  // double otp mode: 18 bytes for seed hash, 2 bytes for nonce, 4 bytes for OTP, 4 bytes for second OTP, 4 bytes for randomness
+  const hseedLength = otpSeed2 ? 18 : (randomness > 0 ? 22 : 26)
+  const hseed = new Uint8Array(hseedLength)
+  if (seed2) {
+    hseed.set(fastSHA256(seed).slice(0, hseedLength / 2))
+    hseed.set(fastSHA256(seed2).slice(0, hseedLength / 2))
+  } else {
+    hseed.set(fastSHA256(seed).slice(0, hseedLength))
+  }
+  let aes, aesInput, rbuffer, rview
+  if (randomness > 0) {
+    // eslint-disable-next-line new-cap
+    aes = new AES.ModeOfOperation.ctr(seed.slice(0, 16))
+    aesInput = new Uint8Array(new Uint32Array([counter]).buffer)
+    rbuffer = new Uint8Array(4)
+    rview = new DataView(rbuffer.buffer)
+  }
+
+  const input = new Uint8Array(n * 32)
   const nonceBuffer = new Uint16Array(1)
-  const layers = []
-  // TODO: parallelize this
   for (let i = 0; i < n * maxOperationsPerInterval; i++) {
+    const offset = i * 32
+    input.set(hseed, offset)
     const nonce = i % maxOperationsPerInterval
     nonceBuffer[0] = nonce
-    buffer.set(hseed)
-    buffer.set(nonceBuffer, hseed.length)
+    input.set(nonceBuffer, offset + hseedLength)
     const otp = otps.subarray(i * 4, i * 4 + 4)
-    buffer.set(otp, hseed.length + 2)
-    const h = fastSHA256(buffer)
-    const hh = fastSHA256(h)
-    leaves.set(hh, i * 32)
-    if (progressObserver) {
-      if (i % reportInterval === 0) {
-        progressObserver(i, n, 1)
-      }
+    input.set(otp, offset + hseedLength + 2)
+    if (otps2) {
+      input.set(otp, offset + hseedLength + 6)
+    }
+    if (randomness > 0) {
+      const r = aes.encrypt(aesInput)
+      const z = (r[0] << 24 | r[1] << 16 | r[2] << 8 | r[3]) >>> (32 - randomness)
+      rview.setUint32(0, z, false)
+      input.set(rbuffer, 28)
     }
   }
+  // TODO: parallelize this
+  const eotps = hasher(input, { progressObserver: buildProgressObserver() })
+  const leaves = sha256b(eotps, { progressObserver: buildProgressObserver() })
+  const layers = []
   layers.push(leaves)
   for (let j = 1; j < height; j += 1) {
     const layer = new Uint8Array(n / (2 ** j) * 32)
@@ -65,8 +91,8 @@ const computeMerkleTree = ({ otpSeed, effectiveTime = Date.now(), duration = 360
   return {
     seed,
     hseed,
-    leaves, // =layers[0]
-    root, // =layers[height - 1]
+    leaves, // = layers[0]
+    root, // = layers[height - 1]
     layers,
     maxOperationsPerInterval,
   }
@@ -166,6 +192,34 @@ const bruteforceEOTP = ({ hseed, nonce = 0, leaf }) => {
   return { }
 }
 
+const recoverRandomness = ({ hseed, otp, otp2, nonce = 0, leaf, randomness = 17, hasher = sha256b }) => {
+  const nonceBuffer = new Uint16Array([nonce])
+  const ub = 2 ** randomness
+  const buffer = new Uint8Array(ub * 32)
+  const rb = new Uint8Array(4)
+  const rv = new DataView(rb)
+  for (let i = 0; i < ub; i++) {
+    const offset = i * 32
+    buffer.set(hseed, offset)
+    buffer.set(nonceBuffer, offset + hseed.length)
+    buffer.set(otp, offset + hseed.length + 2)
+    if (otp2) {
+      buffer.set(otp2, offset + hseed.length + 6)
+    }
+    rv.setUint32(0, i, false)
+    buffer.set(rb, offset + 28)
+  }
+  const eotps = hasher(buffer)
+  const output = sha256b(eotps)
+  for (let i = 0; i < ub; i++) {
+    const b = output.subarray(i * 32, i * 32 + 32)
+    if (bytesEqual(b, leaf)) {
+      return i
+    }
+  }
+  return null
+}
+
 const computeTokenKey = ({ tokenType, contractAddress, tokenId }) => {
   const buf = new Uint8Array(96)
   const s1 = new BN(tokenType, 10).toArrayLike(Uint8Array, 'be', 32)
@@ -223,5 +277,7 @@ module.exports = {
   bruteforceEOTP,
   computeTokenKey,
   computeTokenOperationHash,
-  computeVerificationHash
+  computeVerificationHash,
+
+  recoverRandomness
 }

From 78ff5629cabe6c07cc6752ad400c445cbf16cd05 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Mon, 2 Aug 2021 03:10:01 -0700
Subject: [PATCH 04/59] store randomnessResults and return in merkle tree
 computation

---
 code/lib/onewallet.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/code/lib/onewallet.js b/code/lib/onewallet.js
index 97c215f6..59ee15de 100644
--- a/code/lib/onewallet.js
+++ b/code/lib/onewallet.js
@@ -38,7 +38,7 @@ const computeMerkleTree = ({
   } else {
     hseed.set(fastSHA256(seed).slice(0, hseedLength))
   }
-  let aes, aesInput, rbuffer, rview
+  let aes; let aesInput; let rbuffer; let rview; let randomnessResults = []
   if (randomness > 0) {
     // eslint-disable-next-line new-cap
     aes = new AES.ModeOfOperation.ctr(seed.slice(0, 16))
@@ -63,6 +63,7 @@ const computeMerkleTree = ({
     if (randomness > 0) {
       const r = aes.encrypt(aesInput)
       const z = (r[0] << 24 | r[1] << 16 | r[2] << 8 | r[3]) >>> (32 - randomness)
+      randomnessResults.push(z)
       rview.setUint32(0, z, false)
       input.set(rbuffer, 28)
     }
@@ -89,7 +90,9 @@ const computeMerkleTree = ({
   }
   // console.log(`root: 0x${hexView(root)} tree height: ${layers.length}; leaves length: ${leaves.length}`)
   return {
-    seed,
+    seed, // discard
+    seed2, // discard
+    randomnessResults, // discard
     hseed,
     leaves, // = layers[0]
     root, // = layers[height - 1]

From 993b66b9332c0445152168e8799cebc1b33cea2c Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Mon, 2 Aug 2021 03:10:10 -0700
Subject: [PATCH 05/59] fix bug with sha256b

---
 code/lib/util.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/lib/util.js b/code/lib/util.js
index d502654d..ca1d8e0b 100644
--- a/code/lib/util.js
+++ b/code/lib/util.js
@@ -22,7 +22,7 @@ const utils = {
   sha256b: (input, { progressObserver, batchSize = 32 }) => {
     const n = input.length / batchSize
     const output = new Uint8Array(n * 32)
-    for (let i = 0; i < input.length; i += batchSize) {
+    for (let i = 0; i < n; i += 1) {
       output.set(sha256(input.subarray(i * batchSize, i * batchSize + batchSize)), i * 32)
       if (progressObserver) {
         progressObserver(i, n)

From c68b9dbb65a36c1972348ccd4f4e3657b7451529 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Mon, 2 Aug 2021 03:10:21 -0700
Subject: [PATCH 06/59] fix deprecated method in wallet test

---
 code/test/wallet.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/test/wallet.js b/code/test/wallet.js
index de0688e5..ca2eac6f 100644
--- a/code/test/wallet.js
+++ b/code/test/wallet.js
@@ -115,7 +115,7 @@ contract('ONEWallet', (accounts) => {
     Logger.debug(`Committed`)
     const neighborsEncoded = neighbors.map(ONEUtil.hexString)
     Debugger.debugProof({ neighbors, height: layers.length, index, eotp, root })
-    const commits = await wallet.getCommits()
+    const commits = await wallet.getAllCommits()
     const hash = commits[0][0]
     const paramHash = commits[0][1]
     const verificationHashCommitted = commits[0][2]

From e4225ef1979e0d2de8ef2d26b9bb810d2d3d09ac Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Mon, 2 Aug 2021 03:10:35 -0700
Subject: [PATCH 07/59] expand test util for createWallet

---
 code/test/util.js | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/code/test/util.js b/code/test/util.js
index 8a9318ec..d3488c89 100644
--- a/code/test/util.js
+++ b/code/test/util.js
@@ -12,11 +12,16 @@ const Logger = {
   }
 }
 
-const createWallet = async ({ effectiveTime, duration, maxOperationsPerInterval, lastResortAddress, dailyLimit }) => {
+const createWallet = async ({ effectiveTime, duration, maxOperationsPerInterval, lastResortAddress, dailyLimit, doubleOtp, randomness = 0, hasher = ONEWalletUtil.sha256b }) => {
   const otpSeed = base32.encode('0xdeadbeef1234567890')
+  let otpSeed2
+  if (doubleOtp) {
+    otpSeed2 = base32.encode('0x1234567890deadbeef')
+  }
   effectiveTime = Math.floor(effectiveTime / INTERVAL) * INTERVAL
-  const { seed, hseed, root, leaves, layers, maxOperationsPerInterval: slotSize } = ONEWalletLib.computeMerkleTree({
-    otpSeed, effectiveTime, maxOperationsPerInterval, duration })
+  const { seed, seed2, hseed, root, leaves, layers, maxOperationsPerInterval: slotSize, randomnessResults } = ONEWalletLib.computeMerkleTree({
+    otpSeed, otpSeed2, effectiveTime, maxOperationsPerInterval, duration, randomness, hasher
+  })
   const height = layers.length
   const t0 = effectiveTime / INTERVAL
   const lifespan = duration / INTERVAL
@@ -32,7 +37,9 @@ const createWallet = async ({ effectiveTime, duration, maxOperationsPerInterval,
 
   return {
     seed,
+    seed2,
     hseed,
+    randomnessResults,
     wallet, // smart contract
     root, // uint8array
     client: {

From f77b7b74376c79ae38c91238aaf1e075e580102f Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Mon, 2 Aug 2021 05:05:11 -0700
Subject: [PATCH 08/59] make computeMerkleTree and recoverRandomness async

---
 code/lib/onewallet.js | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/code/lib/onewallet.js b/code/lib/onewallet.js
index 59ee15de..bf8b5203 100644
--- a/code/lib/onewallet.js
+++ b/code/lib/onewallet.js
@@ -4,7 +4,7 @@ const { hexView, genOTP, hexStringToBytes, keccak, bytesEqual } = require('./uti
 const BN = require('bn.js')
 const AES = require('aes-js')
 
-const computeMerkleTree = ({
+const computeMerkleTree = async ({
   otpSeed,
   otpSeed2, // can be null
   effectiveTime = Date.now(),
@@ -58,19 +58,20 @@ const computeMerkleTree = ({
     const otp = otps.subarray(i * 4, i * 4 + 4)
     input.set(otp, offset + hseedLength + 2)
     if (otps2) {
-      input.set(otp, offset + hseedLength + 6)
+      const otp2 = otps2.subarray(i * 4, i * 4 + 4)
+      input.set(otp2, offset + hseedLength + 6)
     }
     if (randomness > 0) {
       const r = aes.encrypt(aesInput)
       const z = (r[0] << 24 | r[1] << 16 | r[2] << 8 | r[3]) >>> (32 - randomness)
       randomnessResults.push(z)
       rview.setUint32(0, z, false)
-      input.set(rbuffer, 28)
+      input.set(rbuffer, offset + 28)
     }
   }
   // TODO: parallelize this
-  const eotps = hasher(input, { progressObserver: buildProgressObserver() })
-  const leaves = sha256b(eotps, { progressObserver: buildProgressObserver() })
+  const eotps = await hasher(input, { progressObserver: buildProgressObserver() })
+  const leaves = await sha256b(eotps, { progressObserver: buildProgressObserver() })
   const layers = []
   layers.push(leaves)
   for (let j = 1; j < height; j += 1) {
@@ -94,6 +95,7 @@ const computeMerkleTree = ({
     seed2, // discard
     randomnessResults, // discard
     hseed,
+    counter, // base time
     leaves, // = layers[0]
     root, // = layers[height - 1]
     layers,
@@ -195,12 +197,12 @@ const bruteforceEOTP = ({ hseed, nonce = 0, leaf }) => {
   return { }
 }
 
-const recoverRandomness = ({ hseed, otp, otp2, nonce = 0, leaf, randomness = 17, hasher = sha256b }) => {
+const recoverRandomness = async ({ hseed, otp, otp2, nonce = 0, leaf, randomness = 17, hasher = sha256b }) => {
   const nonceBuffer = new Uint16Array([nonce])
   const ub = 2 ** randomness
   const buffer = new Uint8Array(ub * 32)
   const rb = new Uint8Array(4)
-  const rv = new DataView(rb)
+  const rv = new DataView(rb.buffer)
   for (let i = 0; i < ub; i++) {
     const offset = i * 32
     buffer.set(hseed, offset)
@@ -212,8 +214,8 @@ const recoverRandomness = ({ hseed, otp, otp2, nonce = 0, leaf, randomness = 17,
     rv.setUint32(0, i, false)
     buffer.set(rb, offset + 28)
   }
-  const eotps = hasher(buffer)
-  const output = sha256b(eotps)
+  const eotps = await hasher(buffer)
+  const output = await sha256b(eotps)
   for (let i = 0; i < ub; i++) {
     const b = output.subarray(i * 32, i * 32 + 32)
     if (bytesEqual(b, leaf)) {

From ec451ddf9422744103564fa1ba7c0c1c70b26721 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Mon, 2 Aug 2021 05:05:23 -0700
Subject: [PATCH 09/59] sha256b async

---
 code/lib/util.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/lib/util.js b/code/lib/util.js
index ca1d8e0b..b42ba35e 100644
--- a/code/lib/util.js
+++ b/code/lib/util.js
@@ -19,7 +19,7 @@ const utils = {
   sha256,
 
   // batched sha256
-  sha256b: (input, { progressObserver, batchSize = 32 }) => {
+  sha256b: async (input, { progressObserver, batchSize = 32 } = {}) => {
     const n = input.length / batchSize
     const output = new Uint8Array(n * 32)
     for (let i = 0; i < n; i += 1) {

From dac8df1842a1816d14079aa10a5a135df75babce Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Mon, 2 Aug 2021 05:05:37 -0700
Subject: [PATCH 10/59] make worker onmessagelisteners async

---
 code/cli/src/ONEWalletWorker.js           | 4 ++--
 code/client/src/worker/ONEWalletWorker.js | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/code/cli/src/ONEWalletWorker.js b/code/cli/src/ONEWalletWorker.js
index 32b5448d..24008926 100644
--- a/code/cli/src/ONEWalletWorker.js
+++ b/code/cli/src/ONEWalletWorker.js
@@ -1,7 +1,7 @@
 import ONE from '../../lib/onewallet'
 import { parentPort } from 'worker_threads'
 
-parentPort.once('message', ({ seed, effectiveTime, duration, slotSize, interval } = {}) => {
+parentPort.once('message', async ({ seed, effectiveTime, duration, slotSize, interval } = {}) => {
   if (!seed) {
     console.log('Worker: received event but it has no valid data')
     return
@@ -14,7 +14,7 @@ parentPort.once('message', ({ seed, effectiveTime, duration, slotSize, interval
     root,
     layers,
     maxOperationsPerInterval,
-  } = ONE.computeMerkleTree({
+  } = await ONE.computeMerkleTree({
     otpSeed: seed,
     effectiveTime,
     duration,
diff --git a/code/client/src/worker/ONEWalletWorker.js b/code/client/src/worker/ONEWalletWorker.js
index 6407c81f..2f082faa 100644
--- a/code/client/src/worker/ONEWalletWorker.js
+++ b/code/client/src/worker/ONEWalletWorker.js
@@ -1,6 +1,6 @@
 const ONE = require('../../../lib/onewallet')
 
-onmessage = function (event) {
+onmessage = async function (event) {
   const { seed, effectiveTime, duration, slotSize, interval } = event.data
   if (!seed) {
     // console.log('worker: received event but it has no valid data', event)
@@ -14,7 +14,7 @@ onmessage = function (event) {
     root,
     layers,
     maxOperationsPerInterval,
-  } = ONE.computeMerkleTree({
+  } = await ONE.computeMerkleTree({
     otpSeed: seed,
     effectiveTime,
     duration,

From 12dd2b76929c62d65c839ad3430023f193710f44 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Mon, 2 Aug 2021 05:06:01 -0700
Subject: [PATCH 11/59] return counter on test util createwallet

---
 code/test/util.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/code/test/util.js b/code/test/util.js
index d3488c89..44e843ef 100644
--- a/code/test/util.js
+++ b/code/test/util.js
@@ -19,7 +19,7 @@ const createWallet = async ({ effectiveTime, duration, maxOperationsPerInterval,
     otpSeed2 = base32.encode('0x1234567890deadbeef')
   }
   effectiveTime = Math.floor(effectiveTime / INTERVAL) * INTERVAL
-  const { seed, seed2, hseed, root, leaves, layers, maxOperationsPerInterval: slotSize, randomnessResults } = ONEWalletLib.computeMerkleTree({
+  const { seed, seed2, hseed, root, leaves, layers, maxOperationsPerInterval: slotSize, randomnessResults, counter } = await ONEWalletLib.computeMerkleTree({
     otpSeed, otpSeed2, effectiveTime, maxOperationsPerInterval, duration, randomness, hasher
   })
   const height = layers.length
@@ -40,6 +40,7 @@ const createWallet = async ({ effectiveTime, duration, maxOperationsPerInterval,
     seed2,
     hseed,
     randomnessResults,
+    counter,
     wallet, // smart contract
     root, // uint8array
     client: {

From 7119e60f8bd8cc7660a9084e2b0831519611ee6f Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Mon, 2 Aug 2021 05:06:19 -0700
Subject: [PATCH 12/59] client security test

---
 code/test/client.js | 201 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 201 insertions(+)
 create mode 100644 code/test/client.js

diff --git a/code/test/client.js b/code/test/client.js
new file mode 100644
index 00000000..36aeb881
--- /dev/null
+++ b/code/test/client.js
@@ -0,0 +1,201 @@
+const ONEUtil = require('../lib/util')
+const ONE = require('../lib/onewallet')
+const INTERVAL = 30000
+const DURATION = INTERVAL * 8
+const { Logger, createWallet } = require('./util')
+const ONEConstants = require('../lib/constants')
+const unit = require('ethjs-unit')
+
+const ONE_ETH = unit.toWei('1', 'ether')
+const SLOT_SIZE = 1
+
+contract('ONEWallet', (accounts) => {
+  // 2021-06-13T03:55:00.000Z
+
+  const EFFECTIVE_TIME = Math.floor(1623556500000 / INTERVAL) * INTERVAL - DURATION / 2
+  it('must generate consistent, recoverable randomness', async () => {
+    const {
+      seed,
+      hseed,
+      counter,
+      randomnessResults,
+      wallet,
+      root,
+      client: {
+        leaves,
+        layers,
+      },
+      contract: {
+        slotSize,
+        t0,
+        lifespan,
+        interval
+      } } = await createWallet({
+      effectiveTime: EFFECTIVE_TIME,
+      duration: DURATION,
+      maxOperationsPerInterval: SLOT_SIZE,
+      lastResortAddress: ONEConstants.EmptyAddress,
+      dailyLimit: ONE_ETH,
+      randomness: 16,
+    })
+    Logger.debug({
+      seed,
+      hseed,
+      randomnessResults,
+      wallet: wallet.toString(),
+      root,
+      client: {
+        leaves,
+        layers,
+      },
+      contract: {
+        slotSize,
+        t0,
+        lifespan,
+        interval
+      } })
+    const { randomnessResults: randomnessResults2 } = await createWallet({
+      effectiveTime: EFFECTIVE_TIME,
+      duration: DURATION,
+      maxOperationsPerInterval: SLOT_SIZE,
+      lastResortAddress: ONEConstants.EmptyAddress,
+      dailyLimit: ONE_ETH,
+      randomness: 16,
+    })
+    for (let i = 0; i < randomnessResults.length; i++) {
+      assert.equal(randomnessResults[i], randomnessResults2[i], 'Randomness must be consistent when the same seed is given')
+    }
+    const recoveredList = []
+    for (let i = 0; i < leaves.length / 32; i++) {
+      const otp = ONEUtil.genOTP({ seed, counter: counter + i })
+      const recovered = await ONE.recoverRandomness({ hseed, otp, randomness: 16, hasher: ONEUtil.sha256b, leaf: leaves.subarray(i * 32, i * 32 + 32) })
+      recoveredList.push(recovered)
+    }
+    assert.deepEqual(recoveredList, randomnessResults, 'Controlled Randomness must be recovered')
+  })
+
+  it('must generate consistent, recoverable randomness with double OTP', async () => {
+    const {
+      seed,
+      seed2,
+      hseed,
+      counter,
+      randomnessResults,
+      wallet,
+      root,
+      client: {
+        leaves,
+        layers,
+      },
+      contract: {
+        slotSize,
+        t0,
+        lifespan,
+        interval
+      } } = await createWallet({
+      effectiveTime: EFFECTIVE_TIME,
+      duration: DURATION,
+      maxOperationsPerInterval: SLOT_SIZE,
+      lastResortAddress: ONEConstants.EmptyAddress,
+      dailyLimit: ONE_ETH,
+      randomness: 16,
+      doubleOtp: true,
+    })
+    Logger.debug({
+      seed,
+      seed2,
+      hseed,
+      randomnessResults,
+      wallet: wallet.toString(),
+      root,
+      client: {
+        leaves,
+        layers,
+      },
+      contract: {
+        slotSize,
+        t0,
+        lifespan,
+        interval
+      } })
+    const { randomnessResults: randomnessResults2 } = await createWallet({
+      effectiveTime: EFFECTIVE_TIME,
+      duration: DURATION,
+      maxOperationsPerInterval: SLOT_SIZE,
+      lastResortAddress: ONEConstants.EmptyAddress,
+      dailyLimit: ONE_ETH,
+      randomness: 16,
+    })
+    for (let i = 0; i < randomnessResults.length; i++) {
+      assert.equal(randomnessResults[i], randomnessResults2[i], 'Randomness must be consistent when the same seed is given')
+    }
+    const recoveredList = []
+    for (let i = 0; i < leaves.length / 32; i++) {
+      const otp = ONEUtil.genOTP({ seed, counter: counter + i })
+      const otp2 = ONEUtil.genOTP({ seed: seed2, counter: counter + i })
+      const recovered = await ONE.recoverRandomness({ hseed, otp, otp2, randomness: 16, hasher: ONEUtil.sha256b, leaf: leaves.subarray(i * 32, i * 32 + 32) })
+      recoveredList.push(recovered)
+    }
+    assert.deepEqual(recoveredList, randomnessResults, 'Controlled Randomness must be recovered')
+  })
+
+  it('must generate consistent, recoverable randomness with argon2', async () => {
+    const {
+      seed,
+      hseed,
+      counter,
+      randomnessResults,
+      wallet,
+      root,
+      client: {
+        leaves,
+        layers,
+      },
+      contract: {
+        slotSize,
+        t0,
+        lifespan,
+        interval
+      } } = await createWallet({
+      effectiveTime: EFFECTIVE_TIME,
+      duration: DURATION,
+      maxOperationsPerInterval: SLOT_SIZE,
+      lastResortAddress: ONEConstants.EmptyAddress,
+      dailyLimit: ONE_ETH,
+      randomness: 16,
+      hasher: ONEUtil.argon2
+    })
+    Logger.debug({
+      seed,
+      hseed,
+      randomnessResults,
+      wallet: wallet.toString(),
+      root,
+      client: {
+        leaves,
+        layers,
+      },
+      contract: {
+        slotSize,
+        t0,
+        lifespan,
+        interval
+      } })
+    const { randomnessResults: randomnessResults2 } = await createWallet({
+      effectiveTime: EFFECTIVE_TIME,
+      duration: DURATION,
+      maxOperationsPerInterval: SLOT_SIZE,
+      lastResortAddress: ONEConstants.EmptyAddress,
+      dailyLimit: ONE_ETH,
+      randomness: 16,
+      hasher: ONEUtil.argon2
+    })
+    for (let i = 0; i < randomnessResults.length; i++) {
+      assert.equal(randomnessResults[i], randomnessResults2[i], 'Randomness must be consistent when the same seed is given')
+    }
+    const otp = ONEUtil.genOTP({ seed, counter: counter })
+    const recovered = await ONE.recoverRandomness({ hseed, otp, randomness: 16, hasher: ONEUtil.argon2, leaf: leaves.subarray(0, 32) })
+
+    assert.equal(recovered, randomnessResults[0], 'Controlled Randomness must be recovered')
+  })
+})

From 658f052dbe6ba81eee928ead2393b2ef11cda469 Mon Sep 17 00:00:00 2001
From: Haolin Jiang <haolinj@gmail.com>
Date: Tue, 3 Aug 2021 23:07:02 +1000
Subject: [PATCH 13/59] Add use two otp options on create wallet

---
 code/client/src/pages/Create.jsx          | 106 ++++++++++++++++++----
 code/client/src/worker/ONEWalletWorker.js |   3 +-
 2 files changed, 89 insertions(+), 20 deletions(-)

diff --git a/code/client/src/pages/Create.jsx b/code/client/src/pages/Create.jsx
index cd462008..0b46d9b5 100644
--- a/code/client/src/pages/Create.jsx
+++ b/code/client/src/pages/Create.jsx
@@ -6,7 +6,7 @@ import api from '../api'
 import ONEUtil from '../../../lib/util'
 import ONENames from '../../../lib/names'
 // import { uniqueNamesGenerator, colors, animals } from 'unique-names-generator'
-import { Button, Row, Space, Typography, Slider, Image, message, Progress, Timeline, Select } from 'antd'
+import { Button, Row, Space, Typography, Slider, Image, message, Progress, Timeline, Select, Checkbox } from 'antd'
 import { RedoOutlined, LoadingOutlined, SearchOutlined } from '@ant-design/icons'
 import humanizeDuration from 'humanize-duration'
 import AnimatedSection from '../components/AnimatedSection'
@@ -37,16 +37,32 @@ const genName = (existingNames) => {
   return name
 }
 
+const generateOtpSeed = () => {
+  const otpSeedBuffer = new Uint8Array(20)
+  return window.crypto.getRandomValues(otpSeedBuffer)
+}
+
+const sectionViews = {
+  setupWalletDetails: 1,
+  setupOtp: 2,
+  setupSecondOtp: 3,
+  prepareWallet: 4,
+  walletSetupDone: 5
+}
+
 const Create = () => {
+  const generateNewOtpName = () => genName(Object.keys(wallets).map(k => wallets[k].name))
+
   const { isMobile } = useWindowDimensions()
   const dispatch = useDispatch()
   const history = useHistory()
   const network = useSelector(state => state.wallet.network)
   const wallets = useSelector(state => state.wallet.wallets)
-  const [name, setName] = useState(genName(Object.keys(wallets).map(k => wallets[k].name)))
-  const otpSeedBuffer = new Uint8Array(20)
+  const [name, setName] = useState(generateNewOtpName())
+  // eslint-disable-next-line no-unused-vars
+  const [seed, setSeed] = useState(generateOtpSeed())
   // eslint-disable-next-line no-unused-vars
-  const [seed, setSeed] = useState(window.crypto.getRandomValues(otpSeedBuffer))
+  const [seed2, setSeed2] = useState(generateOtpSeed())
   const [duration, setDuration] = useState(WalletConstants.defaultDuration)
   const [lastResortAddress, setLastResortAddress] = useState()
   const [dailyLimit] = useState(WalletConstants.defaultDailyLimit)
@@ -60,9 +76,10 @@ const Create = () => {
   const [progressStage, setProgressStage] = useState(0)
   const [address, setAddress] = useState() // '0x12345678901234567890'
   const [effectiveTime, setEffectiveTime] = useState()
+  const [doubleOtp, setDoubleOtp] = useState(false)
 
   const [durationVisible, setDurationVisible] = useState(false)
-  const [section, setSection] = useState(2)
+  const [section, setSection] = useState(sectionViews.setupOtp)
   const [qrCodeData, setQRCodeData] = useState()
   const [otp, setOtp] = useState('')
 
@@ -70,42 +87,61 @@ const Create = () => {
 
   const otpRef = useRef()
 
-  const getQRCodeUri = () => {
+  const getQRCodeUri = (otpSeed) => {
     // otpauth://TYPE/LABEL?PARAMETERS
-    return `otpauth://totp/${name}?secret=${b32.encode(seed)}&issuer=Harmony`
+    return `otpauth://totp/${name}?secret=${b32.encode(otpSeed)}&issuer=Harmony`
   }
+
   useEffect(() => {
     (async function () {
-      const uri = getQRCodeUri()
+      const otpSeed = section === sectionViews.setupSecondOtp ? seed2 : seed
+
+      const uri = getQRCodeUri(otpSeed)
+
       const data = await qrcode.toDataURL(uri, { errorCorrectionLevel: 'low', width: isMobile ? 192 : 256 })
+
       setQRCodeData(data)
     })()
   }, [name])
 
   useEffect(() => {
-    if (section === 2 && worker) {
+    if (section === sectionViews.setupOtp && worker) {
       console.log('posting to worker')
       const t = Math.floor(Date.now() / WalletConstants.interval) * WalletConstants.interval
       setEffectiveTime(t)
       worker && worker.postMessage({
-        seed, effectiveTime: t, duration, slotSize, interval: WalletConstants.interval
+        seed, seed2, effectiveTime: t, duration, slotSize, interval: WalletConstants.interval
       })
     }
   }, [section, worker])
 
   useEffect(() => {
+    const settingUpSecondOtp = section === sectionViews.setupSecondOtp
+
     if (otp.length !== 6) {
       return
     }
-    const expected = ONEUtil.genOTP({ seed })
+
+    const currentSeed = settingUpSecondOtp ? seed2 : seed
+
+    const expected = ONEUtil.genOTP({ seed: currentSeed })
+
     const code = new DataView(expected.buffer).getUint32(0, false).toString()
+
+    setOtp('')
+
     if (code.padStart(6, '0') !== otp.padStart(6, '0')) {
-      console.log(`Expected: ${code}. Got: ${otp}`)
       message.error('Code is incorrect. Please try again.')
-      setOtp('')
+
+      otpRef?.current?.focusInput(0)
+    } else if (doubleOtp && !settingUpSecondOtp) {
+      setSection(sectionViews.setupSecondOtp)
+
+      setName(generateNewOtpName())
+
       otpRef?.current?.focusInput(0)
     } else {
-      setSection(3)
+      setSection(sectionViews.prepareWallet)
     }
   }, [otp])
 
@@ -124,6 +160,7 @@ const Create = () => {
     }
 
     let normalizedAddress = ''
+
     if (lastResortAddress !== '') {
       // Ensure valid address for both 0x and one1 formats
       normalizedAddress = util.safeExec(util.normalizedAddress, [lastResortAddress], handleAddressError)
@@ -131,7 +168,9 @@ const Create = () => {
         return
       }
     }
+
     setDeploying(true)
+
     try {
       const { address } = await api.relayer.create({
         root: ONEUtil.hexString(root),
@@ -155,6 +194,7 @@ const Create = () => {
         dailyLimit: ONEUtil.toFraction(dailyLimit).toString(),
         hseed: ONEUtil.hexView(hseed),
         network,
+        doubleOtp,
       }
       await storeLayers()
       dispatch(walletActions.updateWallet(wallet))
@@ -193,7 +233,7 @@ const Create = () => {
 
   return (
     <>
-      <AnimatedSection show={section === 1} style={{ maxWidth: 640 }}>
+      <AnimatedSection show={section === sectionViews.setupWalletDetails} style={{ maxWidth: 640 }}>
         <Heading>What do you want to call your wallet?</Heading>
         <Hint>This is only stored on your computer to distinguish your wallets.</Hint>
         <Row align='middle' style={{ marginBottom: 32, marginTop: 16 }}>
@@ -203,7 +243,7 @@ const Create = () => {
               value={name} onChange={({ target: { value } }) => setName(value)}
               style={{ padding: 0 }}
             />
-            <Button type='primary' shape='round' size='large' onClick={() => setSection(2)}>Next</Button>
+            <Button type='primary' shape='round' size='large' onClick={() => setSection(sectionViews.setupOtp)}>Next</Button>
           </Space>
         </Row>
 
@@ -221,7 +261,7 @@ const Create = () => {
             </Space>}
         </Space>
       </AnimatedSection>
-      <AnimatedSection show={section === 2} style={{ maxWidth: 640 }}>
+      <AnimatedSection show={section === sectionViews.setupOtp} style={{ maxWidth: 640 }}>
         <Row>
           <Space direction='vertical'>
             {/* <Heading>Now, scan the QR code with your Google Authenticator</Heading> */}
@@ -232,6 +272,34 @@ const Create = () => {
             </Row>
           </Space>
         </Row>
+        <Row justify='center'>
+          <Checkbox onChange={() => setDoubleOtp(!doubleOtp)}>
+            <Hint>Use two One Time Passwords for enhanced security</Hint>
+          </Checkbox>
+        </Row>
+        <Row>
+          <Space direction='vertical' size='large' align='center'>
+            <Hint>After you are done, type in the 6-digit code from Google authenticator.</Hint>
+            <OtpBox
+              shouldAutoFocus
+              ref={otpRef}
+              value={otp}
+              onChange={setOtp}
+            />
+          </Space>
+        </Row>
+      </AnimatedSection>
+      <AnimatedSection show={section === sectionViews.setupSecondOtp} style={{ maxWidth: 640 }}>
+        <Row>
+          <Space direction='vertical'>
+            {/* <Heading>Now, scan the QR code with your Google Authenticator</Heading> */}
+            <Heading>Setup Second One Time Password</Heading>
+            <Hint align='center'>Use two One Time Password for enhanced security</Hint>
+            <Row justify='center'>
+              {qrCodeData && <Image src={qrCodeData} preview={false} width={isMobile ? 192 : 256} />}
+            </Row>
+          </Space>
+        </Row>
         <Row>
           <Space direction='vertical' size='large' align='center'>
             <Hint>After you are done, type in the 6-digit code from Google authenticator.</Hint>
@@ -244,7 +312,7 @@ const Create = () => {
           </Space>
         </Row>
       </AnimatedSection>
-      <AnimatedSection show={section === 3} style={{ maxWidth: 640 }}>
+      <AnimatedSection show={section === sectionViews.prepareWallet} style={{ maxWidth: 640 }}>
         <Row>
           <Space direction='vertical'>
             <Heading>Prepare Your ONE Wallet</Heading>
@@ -317,7 +385,7 @@ const Create = () => {
           </Space>
         </Row>
       </AnimatedSection>
-      <AnimatedSection show={section === 4}>
+      <AnimatedSection show={section === sectionViews.walletSetupDone}>
         <Space direction='vertical'>
           <Heading>You are all set!</Heading>
           <Space direction='vertical' size='small'>
diff --git a/code/client/src/worker/ONEWalletWorker.js b/code/client/src/worker/ONEWalletWorker.js
index 2f082faa..5c1d2d15 100644
--- a/code/client/src/worker/ONEWalletWorker.js
+++ b/code/client/src/worker/ONEWalletWorker.js
@@ -1,7 +1,7 @@
 const ONE = require('../../../lib/onewallet')
 
 onmessage = async function (event) {
-  const { seed, effectiveTime, duration, slotSize, interval } = event.data
+  const { seed, seed2, effectiveTime, duration, slotSize, interval } = event.data
   if (!seed) {
     // console.log('worker: received event but it has no valid data', event)
     return
@@ -16,6 +16,7 @@ onmessage = async function (event) {
     maxOperationsPerInterval,
   } = await ONE.computeMerkleTree({
     otpSeed: seed,
+    otpSeed2: seed2,
     effectiveTime,
     duration,
     maxOperationsPerInterval: slotSize,

From 0d7ce6b619d618e01c8ab7195e48bf3861ab96da Mon Sep 17 00:00:00 2001
From: Haolin Jiang <haolinj@gmail.com>
Date: Wed, 4 Aug 2021 10:43:29 +1000
Subject: [PATCH 14/59] Use same name for second otp with suffix and adjust the
 instruction text

---
 code/client/src/pages/Create.jsx | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/code/client/src/pages/Create.jsx b/code/client/src/pages/Create.jsx
index 0b46d9b5..2153ff4d 100644
--- a/code/client/src/pages/Create.jsx
+++ b/code/client/src/pages/Create.jsx
@@ -137,7 +137,7 @@ const Create = () => {
     } else if (doubleOtp && !settingUpSecondOtp) {
       setSection(sectionViews.setupSecondOtp)
 
-      setName(generateNewOtpName())
+      setName(`${name} (2nd)`)
 
       otpRef?.current?.focusInput(0)
     } else {
@@ -272,11 +272,6 @@ const Create = () => {
             </Row>
           </Space>
         </Row>
-        <Row justify='center'>
-          <Checkbox onChange={() => setDoubleOtp(!doubleOtp)}>
-            <Hint>Use two One Time Passwords for enhanced security</Hint>
-          </Checkbox>
-        </Row>
         <Row>
           <Space direction='vertical' size='large' align='center'>
             <Hint>After you are done, type in the 6-digit code from Google authenticator.</Hint>
@@ -288,6 +283,13 @@ const Create = () => {
             />
           </Space>
         </Row>
+        <Row justify='center'>
+          <Checkbox onChange={() => setDoubleOtp(!doubleOtp)}>
+            <Hint>Setup second One Time Password for enhanced security</Hint>
+            <br />
+            <Hint>You will need to scan the QR code again in next step</Hint>
+          </Checkbox>
+        </Row>
       </AnimatedSection>
       <AnimatedSection show={section === sectionViews.setupSecondOtp} style={{ maxWidth: 640 }}>
         <Row>

From 0f497a4d6d45fa84b66b07e3fcaa05dd1bd7c540 Mon Sep 17 00:00:00 2001
From: Haolin Jiang <haolinj@gmail.com>
Date: Wed, 4 Aug 2021 15:25:23 +1000
Subject: [PATCH 15/59] Preset second otp qr data and not overriding otp name
 in the state

---
 code/client/src/pages/Create.jsx | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/code/client/src/pages/Create.jsx b/code/client/src/pages/Create.jsx
index 2153ff4d..4a4f5eca 100644
--- a/code/client/src/pages/Create.jsx
+++ b/code/client/src/pages/Create.jsx
@@ -81,26 +81,31 @@ const Create = () => {
   const [durationVisible, setDurationVisible] = useState(false)
   const [section, setSection] = useState(sectionViews.setupOtp)
   const [qrCodeData, setQRCodeData] = useState()
+  const [secondOtpQrCodeData, setSecondOtpQrCodeData] = useState()
   const [otp, setOtp] = useState('')
 
   const [deploying, setDeploying] = useState()
 
   const otpRef = useRef()
 
-  const getQRCodeUri = (otpSeed) => {
+  const getQRCodeUri = (otpSeed, otpDisplayName) => {
     // otpauth://TYPE/LABEL?PARAMETERS
-    return `otpauth://totp/${name}?secret=${b32.encode(otpSeed)}&issuer=Harmony`
+    return `otpauth://totp/${otpDisplayName}?secret=${b32.encode(otpSeed)}&issuer=Harmony`
   }
 
   useEffect(() => {
     (async function () {
-      const otpSeed = section === sectionViews.setupSecondOtp ? seed2 : seed
+      const otpUri = getQRCodeUri(seed, name)
 
-      const uri = getQRCodeUri(otpSeed)
+      const secondOtpUri = getQRCodeUri(seed2, `${name} (2nd)`)
 
-      const data = await qrcode.toDataURL(uri, { errorCorrectionLevel: 'low', width: isMobile ? 192 : 256 })
+      const otpQrCodeData = await qrcode.toDataURL(otpUri, { errorCorrectionLevel: 'low', width: isMobile ? 192 : 256 })
 
-      setQRCodeData(data)
+      const secondOtpQrCodeData = await qrcode.toDataURL(secondOtpUri, { errorCorrectionLevel: 'low', width: isMobile ? 192 : 256 })
+
+      setQRCodeData(otpQrCodeData)
+
+      setSecondOtpQrCodeData(secondOtpQrCodeData)
     })()
   }, [name])
 
@@ -137,8 +142,6 @@ const Create = () => {
     } else if (doubleOtp && !settingUpSecondOtp) {
       setSection(sectionViews.setupSecondOtp)
 
-      setName(`${name} (2nd)`)
-
       otpRef?.current?.focusInput(0)
     } else {
       setSection(sectionViews.prepareWallet)
@@ -298,7 +301,7 @@ const Create = () => {
             <Heading>Setup Second One Time Password</Heading>
             <Hint align='center'>Use two One Time Password for enhanced security</Hint>
             <Row justify='center'>
-              {qrCodeData && <Image src={qrCodeData} preview={false} width={isMobile ? 192 : 256} />}
+              {secondOtpQrCodeData && <Image src={secondOtpQrCodeData} preview={false} width={isMobile ? 192 : 256} />}
             </Row>
           </Space>
         </Row>

From 7a845aee2d64abece1503e17f57e2e878ba8ae26 Mon Sep 17 00:00:00 2001
From: Haolin Jiang <haolinj@gmail.com>
Date: Wed, 4 Aug 2021 21:53:22 +1000
Subject: [PATCH 16/59] Add otp2 for transfer and potentially restore wallet

---
 code/client/src/pages/Show.jsx | 73 ++++++++++++++++++++++++++++------
 code/lib/api/flow.js           |  9 +++--
 2 files changed, 65 insertions(+), 17 deletions(-)

diff --git a/code/client/src/pages/Show.jsx b/code/client/src/pages/Show.jsx
index 1d951c19..c7826285 100644
--- a/code/client/src/pages/Show.jsx
+++ b/code/client/src/pages/Show.jsx
@@ -116,7 +116,9 @@ const Show = () => {
   const [transferTo, setTransferTo] = useState('')
   const [inputAmount, setInputAmount] = useState('')
   const [otpInput, setOtpInput] = useState('')
+  const [otp2Input, setOtp2Input] = useState('')
   const otpRef = useRef()
+  const otp2Ref = useRef()
 
   const {
     balance: transferAmount,
@@ -134,10 +136,13 @@ const Show = () => {
       setInputAmount(formatted)
     }
   }
+
   const resetOtp = () => {
     setOtpInput('')
+    setOtp2Input('')
     otpRef?.current?.focusInput(0)
   }
+
   const restart = () => {
     setStage(0)
     resetOtp()
@@ -150,12 +155,23 @@ const Show = () => {
   //   beforeReveal
 
   const prepareValidation = ({ checkAmount = true, checkDest = true, checkOtp = true } = {}) => {
+    let rawAmount
+
+    const otp = util.parseOtp(otpInput)
+
+    const otp2 = util.parseOtp(otp2Input)
+
+    const invalidOtp = !otp
+
+    const invalidOtp2 = wallet.doubleOtp && !otp2
+
     // Ensure valid address for both 0x and one1 formats
     const dest = util.safeExec(util.normalizedAddress, [transferTo], handleAddressError)
+
     if (checkDest && !dest) {
       return
     }
-    let rawAmount
+
     if (checkAmount) {
       if (selectedToken && util.isNFT(selectedToken)) {
         try {
@@ -172,17 +188,23 @@ const Show = () => {
         return message.error('Transfer amount is invalid')
       }
     }
-    const otp = util.parseOtp(otpInput)
-    if (checkOtp && !otp) {
-      message.error(`Google Authenticator code [${otp}] is not valid`, 10)
+
+    if (checkOtp && (invalidOtp || invalidOtp2)) {
+      message.error('Google Authenticator code is not valid', 10)
       resetOtp()
       return
     }
-    if (selectedToken && util.isNFT(selectedToken)) {
-      return { otp, dest, amount: rawAmount.toString() }
+
+    return {
+      otp,
+      otp2,
+      dest,
+      invalidOtp,
+      invalidOtp2,
+      amount: selectedToken && util.isNFT(selectedToken) ? rawAmount.toString() : transferAmount.toString()
     }
-    return { otp, dest, amount: transferAmount.toString() }
   }
+
   const onCommitError = (ex) => {
     Sentry.captureException(ex)
     console.error(ex)
@@ -190,22 +212,26 @@ const Show = () => {
     setStage(0)
     resetOtp()
   }
+
   const onCommitFailure = (error) => {
     message.error(`Cannot commit transaction. Reason: ${error}`)
     setStage(0)
     resetOtp()
   }
+
   const onRevealFailure = (error) => {
     message.error(`Transaction Failed: ${error}`)
     setStage(0)
     resetOtp()
   }
+
   const onRevealError = (ex) => {
     Sentry.captureException(ex)
     message.error(`Failed to finalize transaction. Error: ${ex.toString()}`)
     setStage(0)
     resetOtp()
   }
+
   const onRevealAttemptFailed = (numAttemptsRemaining) => {
     message.error(`Failed to finalize transaction. Trying ${numAttemptsRemaining} more time`)
   }
@@ -222,13 +248,15 @@ const Show = () => {
   }
 
   const doSend = async () => {
-    const { otp, dest, amount } = prepareValidation() || {}
-    if (!otp || !dest) return
+    const { otp, otp2, invalidOtp2, invalidOtp, dest, amount } = prepareValidation() || {}
+
+    if (invalidOtp || !dest || invalidOtp2) return
 
     if (selectedToken.key === 'one') {
       SmartFlows.commitReveal({
         wallet,
         otp,
+        otp2,
         commitHashGenerator: ONE.computeTransferHash,
         commitHashArgs: { dest, amount },
         beforeCommit: () => setStage(1),
@@ -249,6 +277,7 @@ const Show = () => {
       SmartFlows.commitReveal({
         wallet,
         otp,
+        otp2,
         commitHashGenerator: ONE.computeTokenOperationHash,
         commitHashArgs: { dest, amount, operationType: ONEConstants.OperationType.TRANSFER_TOKEN, tokenType: selectedToken.tokenType, contractAddress: selectedToken.contractAddress, tokenId: selectedToken.tokenId },
         beforeCommit: () => setStage(1),
@@ -286,12 +315,13 @@ const Show = () => {
   }
 
   const doSetRecoveryAddress = async () => {
-    const { otp, dest } = prepareValidation({ checkAmount: false }) || {}
-    if (!otp || !dest) return
+    const { otp, otp2, invalidOtp2, invalidOtp, dest } = prepareValidation({ checkAmount: false }) || {}
+    if (invalidOtp || !dest || invalidOtp2) return
 
     SmartFlows.commitReveal({
       wallet,
       otp,
+      otp2,
       commitHashGenerator: ONE.computeSetRecoveryAddressHash,
       commitHashArgs: { address: dest },
       beforeCommit: () => setStage(1),
@@ -484,16 +514,33 @@ const Show = () => {
               <Hint>USD</Hint>
             </Space>}
           <Space align='baseline' size='large' style={{ marginTop: 16 }}>
-            <Label><Hint>Code</Hint></Label>
+            <Label><Hint>Code {wallet.doubleOtp ? '1' : ''}</Hint></Label>
             <OtpBox
               ref={otpRef}
               value={otpInput}
               onChange={setOtpInput}
             />
-            <Tooltip title='from your Google Authenticator'>
+            <Tooltip title={`from your Google Authenticator, i.e. ${wallet.name}`}>
               <QuestionCircleOutlined />
             </Tooltip>
           </Space>
+          {
+            wallet.doubleOtp
+              ? (
+                <Space align='baseline' size='large' style={{ marginTop: 16 }}>
+                  <Label><Hint>Code 2</Hint></Label>
+                  <OtpBox
+                    ref={otp2Ref}
+                    value={otp2Input}
+                    onChange={setOtp2Input}
+                  />
+                  <Tooltip title={`from your Google Authenticator, i.e. ${wallet.name} (2nd)`}>
+                    <QuestionCircleOutlined />
+                  </Tooltip>
+                </Space>
+                )
+              : <></>
+          }
         </Space>
         <Row justify='end' style={{ marginTop: 24 }}>
           <Space>
diff --git a/code/lib/api/flow.js b/code/lib/api/flow.js
index 7f601516..dd243ddd 100644
--- a/code/lib/api/flow.js
+++ b/code/lib/api/flow.js
@@ -7,10 +7,11 @@ const { api } = require('./index')
 const BN = require('bn.js')
 
 const EotpBuilders = {
-  fromOtp: ({ otp, wallet }) => {
+  fromOtp: ({ otp, otp2, wallet }) => {
     const { hseed } = wallet
     const encodedOtp = ONEUtil.encodeNumericalOtp(otp)
-    return ONE.computeEOTP({ otp: encodedOtp, hseed: ONEUtil.hexToBytes(hseed) })
+    const encodedOtp2 = otp2 ? ONEUtil.encodeNumericalOtp(otp2) : undefined
+    return ONE.computeEOTP({ otp: encodedOtp, otp2: encodedOtp2, hseed: ONEUtil.hexToBytes(hseed) })
   },
   recovery: ({ wallet, layers }) => {
     const { hseed, effectiveTime } = wallet
@@ -49,7 +50,7 @@ const Committer = {
 
 const Flows = {
   commitReveal: async ({
-    otp, eotpBuilder = EotpBuilders.fromOtp,
+    otp, otp2, eotpBuilder = EotpBuilders.fromOtp,
     committer = Committer.legacy,
     wallet, layers, commitHashGenerator, commitHashArgs,
     beforeCommit, afterCommit, onCommitError, onCommitFailure,
@@ -66,7 +67,7 @@ const Flows = {
         return
       }
     }
-    const eotp = eotpBuilder({ otp, wallet, layers })
+    const eotp = eotpBuilder({ otp, otp2, wallet, layers })
     if (!eotp) {
       message.error('Local state verification failed.')
       return

From e1bff30b25df94409dce5da4f8add75f43078652 Mon Sep 17 00:00:00 2001
From: Haolin Jiang <haolinj@gmail.com>
Date: Wed, 4 Aug 2021 23:03:25 +1000
Subject: [PATCH 17/59] Auto focus otp2 input box when otp1 input box is filled

---
 code/client/src/pages/Show.jsx | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/code/client/src/pages/Show.jsx b/code/client/src/pages/Show.jsx
index c7826285..8e160aa6 100644
--- a/code/client/src/pages/Show.jsx
+++ b/code/client/src/pages/Show.jsx
@@ -120,6 +120,18 @@ const Show = () => {
   const otpRef = useRef()
   const otp2Ref = useRef()
 
+  useEffect(() => {
+    // Focus on OTP 2 input box when first OTP input box is filled.
+    if (otpInput.length === 6 && wallet.doubleOtp) {
+      // For some reason if the OTP input never been focused or touched by user before, it cannot be focused
+      // to index 0 programmatically, however focus to index 1 is fine. So as a workaround we focus on next input first then focus to
+      // index 0 box. Adding setTimeout 0 to make focus on index 0 run asynchronously, which gives browser just enough
+      // time to react the previous focus before we set the focus on index 0.
+      otp2Ref?.current?.focusNextInput()
+      setTimeout(() => otp2Ref?.current?.focusInput(0), 0)
+    }
+  }, [otpInput])
+
   const {
     balance: transferAmount,
     fiatFormatted: transferFiatAmountFormatted

From f606270caa9a74d757a95da5218f35172824a43e Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Wed, 4 Aug 2021 18:11:57 -0700
Subject: [PATCH 18/59] fix issues with wasm in webpack compilation

---
 code/client/package.json      |  1 +
 code/client/webpack.config.js | 13 ++++++++++++-
 code/client/yarn.lock         |  5 +++++
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/code/client/package.json b/code/client/package.json
index 6c8562da..1cfec210 100644
--- a/code/client/package.json
+++ b/code/client/package.json
@@ -26,6 +26,7 @@
     "babel-loader": "^8.2.2",
     "babel-plugin-transform-react-remove-prop-types": "^0.4.24",
     "babel-preset-react": "^6.24.1",
+    "base64-loader": "^1.0.0",
     "copy-webpack-plugin": "^5.0.5",
     "core-js": "^3.13.0",
     "css-loader": "^5.2.6",
diff --git a/code/client/webpack.config.js b/code/client/webpack.config.js
index 2ac583f3..54e4f65d 100644
--- a/code/client/webpack.config.js
+++ b/code/client/webpack.config.js
@@ -11,6 +11,7 @@ module.exports = {
     historyApiFallback: true,
   },
   module: {
+    noParse: /\.wasm$/,
     rules: [
       {
         test: /\.(js|jsx)$/,
@@ -56,7 +57,12 @@ module.exports = {
             }
           }
         ]
-      }
+      },
+      {
+        test: /\.wasm$/,
+        loader: 'base64-loader',
+        type: 'javascript/auto',
+      },
     ],
   },
   entry: {
@@ -71,6 +77,10 @@ module.exports = {
     publicPath: '/'
   },
 
+  externals: {
+    path: 'path',
+    fs: 'fs',
+  },
   resolve: {
     modules: [path.resolve(__dirname, 'node_modules'), 'node_modules'],
     extensions: ['.jsx', '.js'],
@@ -78,6 +88,7 @@ module.exports = {
       stream: require.resolve('stream-browserify'),
       // TODO: remove later, after web3 is removed from dependency (for ethereum compatibility)
       http: require.resolve('stream-http'),
+      fs: false,
       os: require.resolve('os-browserify/browser'),
       https: require.resolve('https-browserify'),
       crypto: require.resolve('crypto-browserify')
diff --git a/code/client/yarn.lock b/code/client/yarn.lock
index 88b99f7a..3805b92d 100644
--- a/code/client/yarn.lock
+++ b/code/client/yarn.lock
@@ -2811,6 +2811,11 @@ base64-js@^1.0.2, base64-js@^1.3.1:
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.5.1.tgz#1b1b440160a5bf7ad40b650f095963481903930a"
   integrity sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==
 
+base64-loader@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/base64-loader/-/base64-loader-1.0.0.tgz#e530bad88e906dd2a1fad0af2d9e683fa8bd92a8"
+  integrity sha1-5TC62I6QbdKh+tCvLZ5oP6i9kqg=
+
 base@^0.11.1:
   version "0.11.2"
   resolved "https://registry.yarnpkg.com/base/-/base-0.11.2.tgz#7bde5ced145b6d551a90db87f83c558b4eb48a8f"

From 73deab000233937c1cf653177c5b12ca7466ed31 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Wed, 4 Aug 2021 19:21:43 -0700
Subject: [PATCH 19/59] improve Create screen texts, positioning, and user
 experience

---
 code/client/src/pages/Create.jsx | 41 ++++++++++++++++++++++----------
 1 file changed, 28 insertions(+), 13 deletions(-)

diff --git a/code/client/src/pages/Create.jsx b/code/client/src/pages/Create.jsx
index 4a4f5eca..316af974 100644
--- a/code/client/src/pages/Create.jsx
+++ b/code/client/src/pages/Create.jsx
@@ -6,8 +6,21 @@ import api from '../api'
 import ONEUtil from '../../../lib/util'
 import ONENames from '../../../lib/names'
 // import { uniqueNamesGenerator, colors, animals } from 'unique-names-generator'
-import { Button, Row, Space, Typography, Slider, Image, message, Progress, Timeline, Select, Checkbox } from 'antd'
-import { RedoOutlined, LoadingOutlined, SearchOutlined } from '@ant-design/icons'
+import {
+  Button,
+  Row,
+  Space,
+  Typography,
+  Slider,
+  Image,
+  message,
+  Progress,
+  Timeline,
+  Select,
+  Checkbox,
+  Tooltip
+} from 'antd'
+import { RedoOutlined, LoadingOutlined, SearchOutlined, QuestionCircleOutlined } from '@ant-design/icons'
 import humanizeDuration from 'humanize-duration'
 import AnimatedSection from '../components/AnimatedSection'
 import b32 from 'hi-base32'
@@ -284,22 +297,24 @@ const Create = () => {
               value={otp}
               onChange={setOtp}
             />
+            <Checkbox onChange={() => setDoubleOtp(!doubleOtp)}>
+              <Space>
+                <Hint>
+                  Use two codes to enhance security
+                </Hint>
+                <Tooltip title={<div>You will need to scan another QR-code on the next page. Each time you make a transaction, you will need to type in two 6-digit codes, which are shown simultaneously next to each other on your Google authenticator.<br /><br />This is advisable if you intend to make larger transactions with this wallet</div>}>
+                  <QuestionCircleOutlined />
+                </Tooltip>
+              </Space>
+            </Checkbox>
           </Space>
         </Row>
-        <Row justify='center'>
-          <Checkbox onChange={() => setDoubleOtp(!doubleOtp)}>
-            <Hint>Setup second One Time Password for enhanced security</Hint>
-            <br />
-            <Hint>You will need to scan the QR code again in next step</Hint>
-          </Checkbox>
-        </Row>
       </AnimatedSection>
       <AnimatedSection show={section === sectionViews.setupSecondOtp} style={{ maxWidth: 640 }}>
         <Row>
           <Space direction='vertical'>
-            {/* <Heading>Now, scan the QR code with your Google Authenticator</Heading> */}
-            <Heading>Setup Second One Time Password</Heading>
-            <Hint align='center'>Use two One Time Password for enhanced security</Hint>
+            <Heading>Create Your ONE Wallet</Heading>
+            <Hint align='center'>Scan using your Google Authenticator to setup the <b>second</b> code</Hint>
             <Row justify='center'>
               {secondOtpQrCodeData && <Image src={secondOtpQrCodeData} preview={false} width={isMobile ? 192 : 256} />}
             </Row>
@@ -307,7 +322,7 @@ const Create = () => {
         </Row>
         <Row>
           <Space direction='vertical' size='large' align='center'>
-            <Hint>After you are done, type in the 6-digit code from Google authenticator.</Hint>
+            <Hint>Type in the <b>second</b> 6-digit code from Google authenticator.</Hint>
             <OtpBox
               shouldAutoFocus
               ref={otpRef}

From a5b9f936aeb342edba0a76308a6c953b54d6365c Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Wed, 4 Aug 2021 19:23:17 -0700
Subject: [PATCH 20/59] remove redundant new lines

---
 code/client/src/pages/Create.jsx | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/code/client/src/pages/Create.jsx b/code/client/src/pages/Create.jsx
index 316af974..294b4277 100644
--- a/code/client/src/pages/Create.jsx
+++ b/code/client/src/pages/Create.jsx
@@ -109,15 +109,10 @@ const Create = () => {
   useEffect(() => {
     (async function () {
       const otpUri = getQRCodeUri(seed, name)
-
       const secondOtpUri = getQRCodeUri(seed2, `${name} (2nd)`)
-
       const otpQrCodeData = await qrcode.toDataURL(otpUri, { errorCorrectionLevel: 'low', width: isMobile ? 192 : 256 })
-
       const secondOtpQrCodeData = await qrcode.toDataURL(secondOtpUri, { errorCorrectionLevel: 'low', width: isMobile ? 192 : 256 })
-
       setQRCodeData(otpQrCodeData)
-
       setSecondOtpQrCodeData(secondOtpQrCodeData)
     })()
   }, [name])
@@ -135,26 +130,18 @@ const Create = () => {
 
   useEffect(() => {
     const settingUpSecondOtp = section === sectionViews.setupSecondOtp
-
     if (otp.length !== 6) {
       return
     }
-
     const currentSeed = settingUpSecondOtp ? seed2 : seed
-
     const expected = ONEUtil.genOTP({ seed: currentSeed })
-
     const code = new DataView(expected.buffer).getUint32(0, false).toString()
-
     setOtp('')
-
     if (code.padStart(6, '0') !== otp.padStart(6, '0')) {
       message.error('Code is incorrect. Please try again.')
-
       otpRef?.current?.focusInput(0)
     } else if (doubleOtp && !settingUpSecondOtp) {
       setSection(sectionViews.setupSecondOtp)
-
       otpRef?.current?.focusInput(0)
     } else {
       setSection(sectionViews.prepareWallet)
@@ -174,9 +161,7 @@ const Create = () => {
       message.error('Cannot deploy wallet. Error: root is not set.')
       return
     }
-
     let normalizedAddress = ''
-
     if (lastResortAddress !== '') {
       // Ensure valid address for both 0x and one1 formats
       normalizedAddress = util.safeExec(util.normalizedAddress, [lastResortAddress], handleAddressError)
@@ -184,9 +169,7 @@ const Create = () => {
         return
       }
     }
-
     setDeploying(true)
-
     try {
       const { address } = await api.relayer.create({
         root: ONEUtil.hexString(root),
@@ -262,7 +245,6 @@ const Create = () => {
             <Button type='primary' shape='round' size='large' onClick={() => setSection(sectionViews.setupOtp)}>Next</Button>
           </Space>
         </Row>
-
         <Space direction='vertical'>
           <Hint>Next, we will set up a ONE Wallet that expires in a year. When the wallet expires, you may create a new wallet and transfer the funds. The funds can also be recovered to an address you set later.</Hint>
           <Link onClick={() => setDurationVisible(true)}>Need more time?</Link>

From 3294346eece01811a3fe369395f88b5db0f0d1f2 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Wed, 4 Aug 2021 22:51:31 -0700
Subject: [PATCH 21/59] decodeOtp util

---
 code/lib/util.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/code/lib/util.js b/code/lib/util.js
index b42ba35e..f61690a0 100644
--- a/code/lib/util.js
+++ b/code/lib/util.js
@@ -125,6 +125,10 @@ const utils = {
     return new Uint8Array(b.buffer)
   },
 
+  decodeOtp: (otp) => {
+    return new DataView(otp.buffer).getUint32(0, false)
+  },
+
   toFraction: (ones, unit, decimals) => {
     const v = Conversion.toWei(ones, unit || 'ether')
     const diff = STANDARD_DECIMAL - (decimals || STANDARD_DECIMAL)

From 7b0748d715f01b7ad2ee6c99b4b49db1d7867efd Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Wed, 4 Aug 2021 22:51:54 -0700
Subject: [PATCH 22/59] fix bug with hseed setter

---
 code/lib/onewallet.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/lib/onewallet.js b/code/lib/onewallet.js
index bf8b5203..10d382ee 100644
--- a/code/lib/onewallet.js
+++ b/code/lib/onewallet.js
@@ -34,7 +34,7 @@ const computeMerkleTree = async ({
   const hseed = new Uint8Array(hseedLength)
   if (seed2) {
     hseed.set(fastSHA256(seed).slice(0, hseedLength / 2))
-    hseed.set(fastSHA256(seed2).slice(0, hseedLength / 2))
+    hseed.set(fastSHA256(seed2).slice(0, hseedLength / 2), hseedLength / 2)
   } else {
     hseed.set(fastSHA256(seed).slice(0, hseedLength))
   }

From 9d166f8bee08fe7dae6de145f7314ca373ab4ceb Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Wed, 4 Aug 2021 23:03:03 -0700
Subject: [PATCH 23/59] fix progress observer

---
 code/lib/onewallet.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/code/lib/onewallet.js b/code/lib/onewallet.js
index 10d382ee..d82d8ab1 100644
--- a/code/lib/onewallet.js
+++ b/code/lib/onewallet.js
@@ -24,9 +24,9 @@ const computeMerkleTree = async ({
   const seed = processOtpSeed(otpSeed)
   const seed2 = otpSeed2 && processOtpSeed(otpSeed2)
   // console.log('Generating Wallet with parameters', { seed, height, otpInterval, effectiveTime })
-  const buildProgressObserver = (max) => (i, n) => i % reportInterval === 0 && progressObserver(i, max || n, 0)
+  const buildProgressObserver = (max, j) => (i, n) => (i + (j || 0)) % reportInterval === 0 && progressObserver(i + (j || 0), max || n, 0)
   const otps = genOTP({ seed, counter, n, progressObserver: buildProgressObserver(seed2 ? n * 2 : n) })
-  const otps2 = seed2 && genOTP({ seed: seed2, counter, n, progressObserver: buildProgressObserver(seed2 ? n * 2 : n) })
+  const otps2 = seed2 && genOTP({ seed: seed2, counter, n, progressObserver: buildProgressObserver(n * 2, n) })
   // legacy mode: no randomness, no seed2: 26 bytes for seed hash, 2 bytes for nonce, 4 bytes for OTP
   // single otp mode: 22 bytes for seed hash, 2 bytes for nonce, 4 bytes for OTP, 4 bytes for randomness
   // double otp mode: 18 bytes for seed hash, 2 bytes for nonce, 4 bytes for OTP, 4 bytes for second OTP, 4 bytes for randomness

From eff7ca2bb4175f151cd756507483ca1941c4974a Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Wed, 4 Aug 2021 23:28:25 -0700
Subject: [PATCH 24/59] computeEOTP with async, hasher, double OTP, and
 randomness

---
 code/lib/onewallet.js | 37 ++++++++++++++++++++++++++-----------
 1 file changed, 26 insertions(+), 11 deletions(-)

diff --git a/code/lib/onewallet.js b/code/lib/onewallet.js
index d82d8ab1..e70a20a7 100644
--- a/code/lib/onewallet.js
+++ b/code/lib/onewallet.js
@@ -24,9 +24,9 @@ const computeMerkleTree = async ({
   const seed = processOtpSeed(otpSeed)
   const seed2 = otpSeed2 && processOtpSeed(otpSeed2)
   // console.log('Generating Wallet with parameters', { seed, height, otpInterval, effectiveTime })
-  const buildProgressObserver = (max, j) => (i, n) => (i + (j || 0)) % reportInterval === 0 && progressObserver(i + (j || 0), max || n, 0)
-  const otps = genOTP({ seed, counter, n, progressObserver: buildProgressObserver(seed2 ? n * 2 : n) })
-  const otps2 = seed2 && genOTP({ seed: seed2, counter, n, progressObserver: buildProgressObserver(n * 2, n) })
+  const buildProgressObserver = (max, stage, offset) => (i, n) => (i + (offset || 0)) % reportInterval === 0 && progressObserver(i + (offset || 0), max || n, stage || 0)
+  const otps = genOTP({ seed, counter, n, progressObserver: buildProgressObserver(seed2 ? n * 2 : n, 0, 0) })
+  const otps2 = seed2 && genOTP({ seed: seed2, counter, n, progressObserver: buildProgressObserver(n * 2, 0, n) })
   // legacy mode: no randomness, no seed2: 26 bytes for seed hash, 2 bytes for nonce, 4 bytes for OTP
   // single otp mode: 22 bytes for seed hash, 2 bytes for nonce, 4 bytes for OTP, 4 bytes for randomness
   // double otp mode: 18 bytes for seed hash, 2 bytes for nonce, 4 bytes for OTP, 4 bytes for second OTP, 4 bytes for randomness
@@ -70,8 +70,8 @@ const computeMerkleTree = async ({
     }
   }
   // TODO: parallelize this
-  const eotps = await hasher(input, { progressObserver: buildProgressObserver() })
-  const leaves = await sha256b(eotps, { progressObserver: buildProgressObserver() })
+  const eotps = await hasher(input, { progressObserver: buildProgressObserver(n * maxOperationsPerInterval * 2, 1) })
+  const leaves = await sha256b(eotps, { progressObserver: buildProgressObserver(n * maxOperationsPerInterval * 2, 1, n * maxOperationsPerInterval) })
   const layers = []
   layers.push(leaves)
   for (let j = 1; j < height; j += 1) {
@@ -155,16 +155,31 @@ const computeSetRecoveryAddressHash = ({ address }) => {
   return { hash: keccak(input), bytes: input }
 }
 
-// otp, uint8array, 4
+// otp, uint8array[4]
+// otp2, uint8array[4], optional
+// rand, integer, optional
 // hseed, uint8array, 26, sha256 hash of the otp seed
 // nonce, positive integer (within 15-bit)
-const computeEOTP = ({ otp, hseed, nonce = 0 }) => {
+const computeEOTP = async ({ otp, otp2, rand = null, hseed, nonce = 0, hasher = sha256b }) => {
   const buffer = new Uint8Array(32)
   const nb = new Uint16Array([nonce])
-  buffer.set(hseed.slice(0, 26))
-  buffer.set(nb, 26)
-  buffer.set(otp, 28)
-  return fastSHA256(buffer)
+  buffer.set(hseed)
+  buffer.set(nb, hseed.length)
+  buffer.set(otp, hseed.length + 2)
+  if (otp2) {
+    buffer.set(otp2, hseed.length + 6)
+  }
+  console.log('otp', otp, hexView(otp))
+  console.log('otp2', otp2, hexView(otp2))
+  console.log('buffer', buffer, hexView(buffer))
+  if (rand !== null) {
+    const rb = new Uint8Array(4)
+    const rv = new DataView(rb.buffer)
+    rv.setUint32(0, rand, false)
+    console.log('rb', rb)
+    buffer.set(rb, 28)
+  }
+  return hasher(buffer)
 }
 
 const computeRecoveryHash = () => {

From 01081a3e12c3395c4246147caba94c457b8c5a3c Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Wed, 4 Aug 2021 23:28:52 -0700
Subject: [PATCH 25/59] transfer test with double otp, randomness, argon2 and
 sha256

---
 code/test/client.js | 102 ++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 98 insertions(+), 4 deletions(-)

diff --git a/code/test/client.js b/code/test/client.js
index 36aeb881..048ce0ab 100644
--- a/code/test/client.js
+++ b/code/test/client.js
@@ -7,6 +7,7 @@ const ONEConstants = require('../lib/constants')
 const unit = require('ethjs-unit')
 
 const ONE_ETH = unit.toWei('1', 'ether')
+const ONE_CENT = unit.toWei('0.01', 'ether')
 const SLOT_SIZE = 1
 
 contract('ONEWallet', (accounts) => {
@@ -172,7 +173,7 @@ contract('ONEWallet', (accounts) => {
       wallet: wallet.toString(),
       root,
       client: {
-        leaves,
+        leaves: ONEUtil.hexString(leaves),
         layers,
       },
       contract: {
@@ -193,9 +194,102 @@ contract('ONEWallet', (accounts) => {
     for (let i = 0; i < randomnessResults.length; i++) {
       assert.equal(randomnessResults[i], randomnessResults2[i], 'Randomness must be consistent when the same seed is given')
     }
-    const otp = ONEUtil.genOTP({ seed, counter: counter })
-    const recovered = await ONE.recoverRandomness({ hseed, otp, randomness: 16, hasher: ONEUtil.argon2, leaf: leaves.subarray(0, 32) })
+    const counterOffset = 3
+    const otp = ONEUtil.genOTP({ seed, counter: counter + counterOffset })
+    const recovered = await ONE.recoverRandomness({ hseed, otp, randomness: 16, hasher: ONEUtil.argon2, leaf: leaves.subarray(counterOffset * 32, counterOffset * 32 + 32) })
+    // console.log(recovered, randomnessResults[counterOffset])
+    assert.equal(recovered, randomnessResults[counterOffset], 'Controlled Randomness must be recovered')
+  })
+
+  const transferTest = async ({ hasher = ONEUtil.sha256b }) => {
+    const effectiveTime = Math.floor(Date.now() / INTERVAL) * INTERVAL - DURATION / 2
+    const purse = web3.eth.accounts.create()
+
+    const {
+      seed,
+      seed2,
+      hseed,
+      randomnessResults,
+      wallet,
+      root,
+      client: {
+        leaves,
+        layers,
+      },
+      contract: {
+        slotSize,
+        t0,
+        lifespan,
+        interval
+      } } = await createWallet({
+      effectiveTime,
+      duration: DURATION,
+      maxOperationsPerInterval: SLOT_SIZE,
+      lastResortAddress: ONEConstants.EmptyAddress,
+      dailyLimit: ONE_ETH,
+      randomness: 16,
+      hasher,
+      doubleOtp: true,
+    })
+    Logger.debug({
+      seed,
+      seed2,
+      hseed,
+      randomnessResults,
+      wallet: wallet.toString(),
+      root,
+      client: {
+        leaves,
+        layers,
+      },
+      contract: {
+        slotSize,
+        t0,
+        lifespan,
+        interval
+      } })
+
+    const otp = ONEUtil.genOTP({ seed })
+    const otp2 = ONEUtil.genOTP({ seed: seed2 })
+    const index = ONEUtil.timeToIndex({ effectiveTime })
+    const leaf = leaves.subarray(index * 32, index * 32 + 32)
+    Logger.debug(`otp=${ONEUtil.decodeOtp(otp)} otp2=${ONEUtil.decodeOtp(otp2)} index=${index}. Recovering rand...`)
+    const rand = await ONE.recoverRandomness({ hseed, otp, otp2, randomness: 16, hasher, leaf })
+    Logger.debug(`rand=${rand} recovered`)
+    assert.ok(rand !== null, 'Recover randomness must succeed')
+    const neighbors = ONE.selectMerkleNeighbors({ layers, index })
+    const neighbor = neighbors[0]
+    const eotp = await ONE.computeEOTP({ otp, otp2, rand, hseed, hasher })
+    Logger.debug(`eotp=${ONEUtil.hexString(eotp)} SHA256(eotp)=${ONEUtil.hexString(ONEUtil.sha256(eotp))} leaf=${ONEUtil.hexString(leaf)}`)
+    assert.ok(ONEUtil.bytesEqual(ONEUtil.sha256(eotp), leaf), 'SHA256(EOTP) must be leaf')
+    const { hash: commitHash } = ONE.computeCommitHash({ neighbor, index, eotp })
+    const { hash: paramsHash } = ONE.computeTransferHash({ dest: purse.address, amount: ONE_CENT.divn(2) })
+    const { hash: verificationHash } = ONE.computeVerificationHash({ paramsHash, eotp })
+    const neighborsEncoded = neighbors.map(ONEUtil.hexString)
+    await web3.eth.sendTransaction({
+      from: accounts[0],
+      to: wallet.address,
+      value: ONE_CENT
+    })
+    Logger.debug(`Deposited ${ONE_CENT.toString()} wei`)
+    await wallet.commit(ONEUtil.hexString(commitHash), ONEUtil.hexString(paramsHash), ONEUtil.hexString(verificationHash))
+    const tx = await wallet.reveal(
+      neighborsEncoded, index, ONEUtil.hexString(eotp),
+      ONEConstants.OperationType.TRANSFER, ONEConstants.TokenType.NONE, ONEConstants.EmptyAddress, 0, purse.address, ONE_CENT.divn(2), '0x'
+    )
+    Logger.debug('tx=', tx)
+    assert.ok(tx.tx, 'Transaction must succeed')
+    const walletBalance = await web3.eth.getBalance(wallet.address)
+    const purseBalance = await web3.eth.getBalance(purse.address)
+    assert.equal(ONE_CENT.divn(2).toString(), walletBalance, `Wallet must have correct balance: ${ONE_CENT.divn(2)}`)
+    assert.equal(ONE_CENT.divn(2).toString(), purseBalance, `Purse must have correct balance: ${ONE_CENT.divn(2)}`)
+  }
+
+  it('Client_Transfer: must compute EOTP correctly and complete transfer, using double OTP + argon2', async () => {
+    await transferTest({ hasher: ONEUtil.sha256b })
+  })
 
-    assert.equal(recovered, randomnessResults[0], 'Controlled Randomness must be recovered')
+  it('Client_Transfer: must compute EOTP correctly and complete transfer, using double OTP + sha256b', async () => {
+    await transferTest({ hasher: ONEUtil.argon2 })
   })
 })

From 97a36a06f2fcf496cd672f889eb93d9199cda548 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Wed, 4 Aug 2021 23:31:28 -0700
Subject: [PATCH 26/59] await eotp in all tests; make all tests pass

---
 code/test/wallet.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/code/test/wallet.js b/code/test/wallet.js
index ca2eac6f..2c9bd20a 100644
--- a/code/test/wallet.js
+++ b/code/test/wallet.js
@@ -99,7 +99,7 @@ contract('ONEWallet', (accounts) => {
 
     const otp = ONEUtil.genOTP({ seed })
     const index = ONEUtil.timeToIndex({ effectiveTime: EFFECTIVE_TIME })
-    const eotp = ONE.computeEOTP({ otp, hseed })
+    const eotp = await ONE.computeEOTP({ otp, hseed })
     Logger.debug(`To compute neighbors`, {
       otp: new DataView(otp.buffer).getUint32(0, false),
       eotp: ONEUtil.hexString(eotp),
@@ -160,7 +160,7 @@ contract('ONEWallet', (accounts) => {
     })
     const otp = ONEUtil.genOTP({ seed })
     const index = ONEUtil.timeToIndex({ effectiveTime: EFFECTIVE_TIME })
-    const eotp = ONE.computeEOTP({ otp, hseed })
+    const eotp = await ONE.computeEOTP({ otp, hseed })
     const neighbors = ONE.selectMerkleNeighbors({ layers, index })
     const neighbor = neighbors[0]
     const { hash: commitHash } = ONE.computeCommitHash({ neighbor, index, eotp })
@@ -196,7 +196,7 @@ contract('ONEWallet', (accounts) => {
     })
     const otp = ONEUtil.genOTP({ seed })
     const index = ONEUtil.timeToIndex({ effectiveTime: EFFECTIVE_TIME })
-    const eotp = ONE.computeEOTP({ otp, hseed })
+    const eotp = await ONE.computeEOTP({ otp, hseed })
     const neighbors = ONE.selectMerkleNeighbors({ layers, index })
     const neighbor = neighbors[0]
     const { hash: commitHash } = ONE.computeCommitHash({ neighbor, index, eotp })

From eb497c97ff83f90c12108e9ee7fc4b084e5252c8 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Wed, 4 Aug 2021 23:42:27 -0700
Subject: [PATCH 27/59] await EOTP everywhere

---
 code/cli/src/make.js | 4 ++--
 code/lib/api/flow.js | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/code/cli/src/make.js b/code/cli/src/make.js
index 7972dd2d..ae9e4656 100644
--- a/code/cli/src/make.js
+++ b/code/cli/src/make.js
@@ -28,7 +28,7 @@ const MakeWallet = ({ lastResortAddress, otpInput }) => {
         return setError('Authenticator code is invalid: ' + otpInput)
       }
       const otp = ONEUtil.encodeNumericalOtp(otpNum)
-      const eotp = ONE.computeEOTP({ hseed: ONEUtil.hexToBytes(hseed), otp })
+      const eotp = await ONE.computeEOTP({ hseed: ONEUtil.hexToBytes(hseed), otp })
       const computedLeaf = ONEUtil.sha256(eotp)
       if (!ONEUtil.bytesEqual(computedLeaf, leaf)) {
         setError(`The OTP code you provided [${otpInput}] is incorrect.`)
@@ -86,7 +86,7 @@ const MakeWallet = ({ lastResortAddress, otpInput }) => {
       {wallet &&
         <>
           <Text>
-          Wallet deployed:
+            Wallet deployed:
           </Text>
           <Info wallet={wallet} />
         </>}
diff --git a/code/lib/api/flow.js b/code/lib/api/flow.js
index 7f601516..9cc65278 100644
--- a/code/lib/api/flow.js
+++ b/code/lib/api/flow.js
@@ -7,12 +7,12 @@ const { api } = require('./index')
 const BN = require('bn.js')
 
 const EotpBuilders = {
-  fromOtp: ({ otp, wallet }) => {
+  fromOtp: async ({ otp, wallet }) => {
     const { hseed } = wallet
     const encodedOtp = ONEUtil.encodeNumericalOtp(otp)
     return ONE.computeEOTP({ otp: encodedOtp, hseed: ONEUtil.hexToBytes(hseed) })
   },
-  recovery: ({ wallet, layers }) => {
+  recovery: async ({ wallet, layers }) => {
     const { hseed, effectiveTime } = wallet
     const index = ONEUtil.timeToIndex({ effectiveTime })
     const leaf = layers[0].subarray(index * 32, index * 32 + 32).slice()
@@ -66,7 +66,7 @@ const Flows = {
         return
       }
     }
-    const eotp = eotpBuilder({ otp, wallet, layers })
+    const eotp = await eotpBuilder({ otp, wallet, layers })
     if (!eotp) {
       message.error('Local state verification failed.')
       return

From d3253c23a1a4c9953a0844ebec9b4c9f9f47231b Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 00:03:26 -0700
Subject: [PATCH 28/59] more parameters in eotpbuilder.fromOtp

---
 code/lib/api/flow.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/code/lib/api/flow.js b/code/lib/api/flow.js
index 9cc65278..4d8efbf2 100644
--- a/code/lib/api/flow.js
+++ b/code/lib/api/flow.js
@@ -7,10 +7,10 @@ const { api } = require('./index')
 const BN = require('bn.js')
 
 const EotpBuilders = {
-  fromOtp: async ({ otp, wallet }) => {
+  fromOtp: async ({ otp, otp2, rand, nonce, wallet }) => {
     const { hseed } = wallet
     const encodedOtp = ONEUtil.encodeNumericalOtp(otp)
-    return ONE.computeEOTP({ otp: encodedOtp, hseed: ONEUtil.hexToBytes(hseed) })
+    return ONE.computeEOTP({ otp: encodedOtp, otp2, rand, nonce, hseed: ONEUtil.hexToBytes(hseed) })
   },
   recovery: async ({ wallet, layers }) => {
     const { hseed, effectiveTime } = wallet

From b549b6ec72b3f97420dc3ff58cb0d2a75b5585c1 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 00:53:29 -0700
Subject: [PATCH 29/59] sync flow.js from frontend branch

---
 code/lib/api/flow.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/code/lib/api/flow.js b/code/lib/api/flow.js
index 4d8efbf2..a8f81701 100644
--- a/code/lib/api/flow.js
+++ b/code/lib/api/flow.js
@@ -10,7 +10,8 @@ const EotpBuilders = {
   fromOtp: async ({ otp, otp2, rand, nonce, wallet }) => {
     const { hseed } = wallet
     const encodedOtp = ONEUtil.encodeNumericalOtp(otp)
-    return ONE.computeEOTP({ otp: encodedOtp, otp2, rand, nonce, hseed: ONEUtil.hexToBytes(hseed) })
+    const encodedOtp2 = otp2 ? ONEUtil.encodeNumericalOtp(otp2) : undefined
+    return ONE.computeEOTP({ otp: encodedOtp, otp2: encodedOtp2, rand, nonce, hseed: ONEUtil.hexToBytes(hseed) })
   },
   recovery: async ({ wallet, layers }) => {
     const { hseed, effectiveTime } = wallet
@@ -49,7 +50,7 @@ const Committer = {
 
 const Flows = {
   commitReveal: async ({
-    otp, eotpBuilder = EotpBuilders.fromOtp,
+    otp, otp2, eotpBuilder = EotpBuilders.fromOtp,
     committer = Committer.legacy,
     wallet, layers, commitHashGenerator, commitHashArgs,
     beforeCommit, afterCommit, onCommitError, onCommitFailure,
@@ -66,7 +67,7 @@ const Flows = {
         return
       }
     }
-    const eotp = await eotpBuilder({ otp, wallet, layers })
+    const eotp = await eotpBuilder({ otp, otp2, wallet, layers })
     if (!eotp) {
       message.error('Local state verification failed.')
       return

From 106cbeff7866a33941f69a1d46db041754956c94 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 01:04:45 -0700
Subject: [PATCH 30/59] rand, hasher, nonce, otp2 in commitReveal flow

---
 code/lib/api/flow.js | 12 +++++++++---
 code/lib/util.js     |  7 +++++++
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/code/lib/api/flow.js b/code/lib/api/flow.js
index a8f81701..f1c7fa41 100644
--- a/code/lib/api/flow.js
+++ b/code/lib/api/flow.js
@@ -59,7 +59,7 @@ const Flows = {
     maxTransferAttempts = 3, checkCommitInterval = 5000,
     message = messager
   }) => {
-    const { effectiveTime, root, address } = wallet
+    const { effectiveTime, root, address, randomness, hseed, hasher } = wallet
     if (!layers) {
       layers = await storage.getItem(root)
       if (!layers) {
@@ -67,13 +67,19 @@ const Flows = {
         return
       }
     }
-    const eotp = await eotpBuilder({ otp, otp2, wallet, layers })
+    const index = ONEUtil.timeToIndex({ effectiveTime })
+    let nonce // should get from blockchain, but omitted for now because all wallets have maxOperationsPerInterval set to 1.
+    let rand
+    if (randomness > 0) {
+      rand = await ONE.recoverRandomness({ hseed, otp, otp2, nonce, leaf: layers[0][index], hasher: ONEUtil.getHasher(hasher) })
+    }
+    const eotp = await eotpBuilder({ otp, otp2, rand, wallet, layers })
     if (!eotp) {
       message.error('Local state verification failed.')
       return
     }
     beforeCommit && await beforeCommit()
-    const index = ONEUtil.timeToIndex({ effectiveTime })
+
     const neighbors = ONE.selectMerkleNeighbors({ layers, index })
     const neighbor = neighbors[0]
 
diff --git a/code/lib/util.js b/code/lib/util.js
index f61690a0..dc2a0de3 100644
--- a/code/lib/util.js
+++ b/code/lib/util.js
@@ -154,6 +154,13 @@ const utils = {
   argon2: async (input, { salt = new Uint8Array(8), progressObserver, batchSize = 32 } = {}) => {
     const { result } = await argon2.hash({ pass: input, batchSize, salt, progressObserver })
     return result
+  },
+
+  getHasher: (hasher) => {
+    if (hasher === 'argon2') {
+      return utils.argon2
+    }
+    return utils.sha256b
   }
 
 }

From 76d6e482167e697723a50fe657e0552465afdad7 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 02:45:12 -0700
Subject: [PATCH 31/59] allow arbitrary paramsHash in recover; use last leaf as
 recover EOTP

---
 code/contracts/ONEWallet.sol | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/code/contracts/ONEWallet.sol b/code/contracts/ONEWallet.sol
index 658e6209..c1318c28 100644
--- a/code/contracts/ONEWallet.sol
+++ b/code/contracts/ONEWallet.sol
@@ -21,6 +21,7 @@ contract ONEWallet is TokenTracker {
     uint32 immutable t0; // starting time block (effectiveTime (in ms) / interval)
     uint32 immutable lifespan;  // in number of block (e.g. 1 block per [interval] seconds)
     uint8 immutable maxOperationsPerInterval; // number of transactions permitted per OTP interval. Each transaction shall have a unique nonce. The nonce is auto-incremented within each interval
+    uint32 immutable _numLeaves; // 2 ** (height - 1)
 
     /// global mutable variables
     address payable lastResortAddress; // where money will be sent during a recovery process (or when the wallet is beyond its lifespan)
@@ -39,10 +40,11 @@ contract ONEWallet is TokenTracker {
     uint32 constant MAX_COMMIT_SIZE = 120;
 
     uint32 constant majorVersion = 0x7; // a change would require client to migrate
-    uint32 constant minorVersion = 0x2; // a change would not require the client to migrate
+    uint32 constant minorVersion = 0x3; // a change would not require the client to migrate
 
     enum OperationType {
-        TRACK, UNTRACK, TRANSFER_TOKEN, OVERRIDE_TRACK, TRANSFER, SET_RECOVERY_ADDRESS, RECOVER
+        TRACK, UNTRACK, TRANSFER_TOKEN, OVERRIDE_TRACK, TRANSFER, SET_RECOVERY_ADDRESS, RECOVER,
+        REPLACE // reserved, not implemented yet. This is for replacing the root and set up new parameters (t0, lifespan)
     }
     /// commit management
     struct Commit {
@@ -68,6 +70,7 @@ contract ONEWallet is TokenTracker {
         lastResortAddress = lastResortAddress_;
         dailyLimit = dailyLimit_;
         maxOperationsPerInterval = maxOperationsPerInterval_;
+        _numLeaves = uint32(2 ** (height_ - 1));
     }
 
     receive() external payable {
@@ -273,7 +276,7 @@ contract ONEWallet is TokenTracker {
         if (operationType == OperationType.TRANSFER) {
             paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest))), bytes32(amount)));
         } else if (operationType == OperationType.RECOVER) {
-            paramsHash = bytes32(0);
+            paramsHash = keccak256(data);
         } else if (operationType == OperationType.SET_RECOVERY_ADDRESS) {
             paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest)))));
         } else {
@@ -296,6 +299,9 @@ contract ONEWallet is TokenTracker {
         OperationType operationType, TokenType tokenType, address contractAddress, uint256 tokenId, address payable dest, uint256 amount, bytes calldata data)
     external {
         _isCorrectProof(neighbors, indexWithNonce, eotp);
+        if (indexWithNonce == _numLeaves - 1) {
+            require(operationType == OperationType.RECOVER, "Last operation reserved for recover");
+        }
         (bytes32 commitHash, bytes32 paramsHash) = _getRevealHash(neighbors[0], indexWithNonce, eotp,
             operationType, tokenType, contractAddress, tokenId, dest, amount, data);
         uint32 commitIndex = _verifyReveal(commitHash, indexWithNonce, paramsHash, eotp);
@@ -330,6 +336,10 @@ contract ONEWallet is TokenTracker {
     function _isCorrectProof(bytes32[] calldata neighbors, uint32 position, bytes32 eotp) view internal {
         require(neighbors.length == height - 1, "Not enough neighbors provided");
         bytes32 h = sha256(bytes.concat(eotp));
+        if (position == _numLeaves - 1) {
+            // special case: recover only
+            h = eotp;
+        }
         for (uint8 i = 0; i < height - 1; i++) {
             if ((position & 0x01) == 0x01) {
                 h = sha256(bytes.concat(neighbors[i], h));

From 54a78a84ca38b72a53c5cee54f67c9f1167a89e1 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 02:45:37 -0700
Subject: [PATCH 32/59] compile contracts

---
 code/build/contracts/ONEWallet.json    | 32388 ++++++++++++-----------
 code/build/contracts/TokenTracker.json | 13776 +++++-----
 2 files changed, 24500 insertions(+), 21664 deletions(-)

diff --git a/code/build/contracts/ONEWallet.json b/code/build/contracts/ONEWallet.json
index 7c81bd40..53493895 100644
--- a/code/build/contracts/ONEWallet.json
+++ b/code/build/contracts/ONEWallet.json
@@ -904,35 +904,35 @@
       "type": "function"
     }
   ],
-  "metadata": "{\"compiler\":{\"version\":\"0.8.4+commit.c7e474f2\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"root_\",\"type\":\"bytes32\"},{\"internalType\":\"uint8\",\"name\":\"height_\",\"type\":\"uint8\"},{\"internalType\":\"uint8\",\"name\":\"interval_\",\"type\":\"uint8\"},{\"internalType\":\"uint32\",\"name\":\"t0_\",\"type\":\"uint32\"},{\"internalType\":\"uint32\",\"name\":\"lifespan_\",\"type\":\"uint32\"},{\"internalType\":\"uint8\",\"name\":\"maxOperationsPerInterval_\",\"type\":\"uint8\"},{\"internalType\":\"address payable\",\"name\":\"lastResortAddress_\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"dailyLimit_\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"}],\"name\":\"AutoRecoveryTriggered\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"limit\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"current\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"}],\"name\":\"ExceedDailyLimit\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"balance\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"}],\"name\":\"InsufficientFund\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[],\"name\":\"LastResortAddressNotSet\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"}],\"name\":\"PaymentReceived\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"}],\"name\":\"PaymentSent\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"tokenContract\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"ReceivedToken\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[],\"name\":\"RecoveryFailure\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenNotFound\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenTracked\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"string\",\"name\":\"reason\",\"type\":\"string\"}],\"name\":\"TokenTransferError\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferFailed\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferSucceeded\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenUntracked\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"}],\"name\":\"UnknownTransferError\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"hash\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"paramsHash\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"verificationHash\",\"type\":\"bytes32\"}],\"name\":\"commit\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"findCommit\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"},{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"},{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"pure\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getAllCommits\",\"outputs\":[{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"uint32[]\",\"name\":\"\",\"type\":\"uint32[]\"},{\"internalType\":\"bool[]\",\"name\":\"\",\"type\":\"bool[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getCommits\",\"outputs\":[{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"uint32[]\",\"name\":\"\",\"type\":\"uint32[]\"},{\"internalType\":\"bool[]\",\"name\":\"\",\"type\":\"bool[]\"}],\"stateMutability\":\"pure\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getCurrentSpending\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getInfo\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"},{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"},{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"},{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"},{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"},{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getNonce\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getTrackedTokens\",\"outputs\":[{\"internalType\":\"enum TokenTracker.TokenType[]\",\"name\":\"\",\"type\":\"uint8[]\"},{\"internalType\":\"address[]\",\"name\":\"\",\"type\":\"address[]\"},{\"internalType\":\"uint256[]\",\"name\":\"\",\"type\":\"uint256[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getVersion\",\"outputs\":[{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"},{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"}],\"stateMutability\":\"pure\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"hash\",\"type\":\"bytes32\"}],\"name\":\"lookupCommit\",\"outputs\":[{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"uint32[]\",\"name\":\"\",\"type\":\"uint32[]\"},{\"internalType\":\"bool[]\",\"name\":\"\",\"type\":\"bool[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"uint256[]\",\"name\":\"ids\",\"type\":\"uint256[]\"},{\"internalType\":\"uint256[]\",\"name\":\"values\",\"type\":\"uint256[]\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"onERC1155BatchReceived\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"id\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"onERC1155Received\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"onERC721Received\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"retire\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32[]\",\"name\":\"neighbors\",\"type\":\"bytes32[]\"},{\"internalType\":\"uint32\",\"name\":\"indexWithNonce\",\"type\":\"uint32\"},{\"internalType\":\"bytes32\",\"name\":\"eotp\",\"type\":\"bytes32\"},{\"internalType\":\"enum ONEWallet.OperationType\",\"name\":\"operationType\",\"type\":\"uint8\"},{\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"address payable\",\"name\":\"dest\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"reveal\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes4\",\"name\":\"interfaceID\",\"type\":\"bytes4\"}],\"name\":\"supportsInterface\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"pure\",\"type\":\"function\"},{\"stateMutability\":\"payable\",\"type\":\"receive\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\":{\"details\":\"Handles the receipt of a multiple ERC1155 token types. This function is called at the end of a `safeBatchTransferFrom` after the balances have been updated. To accept the transfer(s), this must return `bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` (i.e. 0xbc197c81, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"ids\":\"An array containing ids of each token being transferred (order and length must match values array)\",\"operator\":\"The address which initiated the batch transfer (i.e. msg.sender)\",\"values\":\"An array containing amounts of each token being transferred (order and length must match ids array)\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` if transfer is allowed\"}},\"onERC1155Received(address,address,uint256,uint256,bytes)\":{\"details\":\"Handles the receipt of a single ERC1155 token type. This function is called at the end of a `safeTransferFrom` after the balance has been updated. To accept the transfer, this must return `bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` (i.e. 0xf23a6e61, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"id\":\"The ID of the token being transferred\",\"operator\":\"The address which initiated the transfer (i.e. msg.sender)\",\"value\":\"The amount of tokens being transferred\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` if transfer is allowed\"}},\"onERC721Received(address,address,uint256,bytes)\":{\"details\":\"Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} by `operator` from `from`, this function is called. It must return its Solidity selector to confirm the token transfer. If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"/Users/polymorpher/git/one-wallet/code/contracts/ONEWallet.sol\":\"ONEWallet\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/Users/polymorpher/git/one-wallet/code/contracts/ONEWallet.sol\":{\"keccak256\":\"0x7e6c50faefdd6893386817494463343344b794c6a26d5937a32b2b169150b9bb\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://a65b77abbd894e9995e79cb6268836de7e82532796ab345975720108d3245f07\",\"dweb:/ipfs/QmfEzEJgUmWdvHwkFFLYZu7LnyBi6jxc8dyTSt7Fousz38\"]},\"/Users/polymorpher/git/one-wallet/code/contracts/TokenTracker.sol\":{\"keccak256\":\"0x153e8bd4263b7b071e5c4e9e44f5da2afb16c74207e8a6a071c837721de1747b\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://5550ad4a2929a9216432939182544a355ccfa1fdc04566497d4215d08171d115\",\"dweb:/ipfs/QmRkCR7qmJP6oLqFs7FbAZNgQUV9PNRLweP4Kkv3L81AW7\"]},\"@openzeppelin/contracts/token/ERC1155/IERC1155.sol\":{\"keccak256\":\"0xfce1eb6398eae0e2b50251140866a70a3106193f101972c878bba1dbf44929ec\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://4f0709c3f462b28b400f57db181254ad970967c3b49a8948ef5e05929b106ffe\",\"dweb:/ipfs/QmNe3sRmPKw1T7q7m733tk7tFKpi3jo9PCisDPMbjeg3kJ\"]},\"@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol\":{\"keccak256\":\"0x7de6e64d4a8075e803a972cc77c4c91463e0c3777e4110eacfb5d4a71759b2fa\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://b83b3b09ef36374c1c104ee896797dadf2e81466d2143b481d3f1ddc7d9f3873\",\"dweb:/ipfs/QmSWtqs28RHDezRWBbmEfqiPYwsGTKj44NRbuxvZ96cqMU\"]},\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"keccak256\":\"0x027b891937d20ccf213fdb9c31531574256de774bda99d3a70ecef6e1913ed2a\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://087318b21c528119f649899f5b5580566dd8d7b0303d4904bd0e8580c3545f14\",\"dweb:/ipfs/Qmbn5Mj7aUn8hJuQ8VrQjjEXRsXyJKykgnjR9p4C3nfLtL\"]},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0xf101e8720213560fab41104d53b3cc7ba0456ef3a98455aa7f022391783144a0\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://3e7820bcf567e6892d937c3cb10db263a4042e446799bca602535868d822384e\",\"dweb:/ipfs/QmPG2oeDjKncqsEeyYGjAN7CwAJmMgHterXGGnpzhha4z7\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\":{\"keccak256\":\"0xd9517254724276e2e8de3769183c1f738f445f0095c26fd9b86d3c6687e887b9\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://0e604bcdcd5e5b2fb299ad09769cde6db19d5aa1929d1b5e939234a0f10d7eb8\",\"dweb:/ipfs/Qmd8hXE3GZfBHuWx3RNiYgFW2ci7KvHtib8DiwzJ2dgo9V\"]},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"keccak256\":\"0xa28007762d9da9db878dd421960c8cb9a10471f47ab5c1b3309bfe48e9e79ff4\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://796ab6e88af7bf0e78def0f059310c903af6a312b565344e0ff524a0f26e81c6\",\"dweb:/ipfs/QmcsVgLgzWdor3UnAztUkXKNGcysm1MPneWksF72AvnwBx\"]}},\"version\":1}",
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TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"tokenContract\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"ReceivedToken\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[],\"name\":\"RecoveryFailure\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenNotFound\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenTracked\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum 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TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferFailed\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferSucceeded\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum 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This function is called at the end of a `safeBatchTransferFrom` after the balances have been updated. To accept the transfer(s), this must return `bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` (i.e. 0xbc197c81, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"ids\":\"An array containing ids of each token being transferred (order and length must match values array)\",\"operator\":\"The address which initiated the batch transfer (i.e. msg.sender)\",\"values\":\"An array containing amounts of each token being transferred (order and length must match ids array)\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` if transfer is allowed\"}},\"onERC1155Received(address,address,uint256,uint256,bytes)\":{\"details\":\"Handles the receipt of a single ERC1155 token type. This function is called at the end of a `safeTransferFrom` after the balance has been updated. To accept the transfer, this must return `bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` (i.e. 0xf23a6e61, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"id\":\"The ID of the token being transferred\",\"operator\":\"The address which initiated the transfer (i.e. msg.sender)\",\"value\":\"The amount of tokens being transferred\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` if transfer is allowed\"}},\"onERC721Received(address,address,uint256,bytes)\":{\"details\":\"Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} by `operator` from `from`, this function is called. It must return its Solidity selector to confirm the token transfer. If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"project:/contracts/ONEWallet.sol\":\"ONEWallet\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/token/ERC1155/IERC1155.sol\":{\"keccak256\":\"0xfce1eb6398eae0e2b50251140866a70a3106193f101972c878bba1dbf44929ec\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://4f0709c3f462b28b400f57db181254ad970967c3b49a8948ef5e05929b106ffe\",\"dweb:/ipfs/QmNe3sRmPKw1T7q7m733tk7tFKpi3jo9PCisDPMbjeg3kJ\"]},\"@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol\":{\"keccak256\":\"0x7de6e64d4a8075e803a972cc77c4c91463e0c3777e4110eacfb5d4a71759b2fa\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://b83b3b09ef36374c1c104ee896797dadf2e81466d2143b481d3f1ddc7d9f3873\",\"dweb:/ipfs/QmSWtqs28RHDezRWBbmEfqiPYwsGTKj44NRbuxvZ96cqMU\"]},\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"keccak256\":\"0x027b891937d20ccf213fdb9c31531574256de774bda99d3a70ecef6e1913ed2a\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://087318b21c528119f649899f5b5580566dd8d7b0303d4904bd0e8580c3545f14\",\"dweb:/ipfs/Qmbn5Mj7aUn8hJuQ8VrQjjEXRsXyJKykgnjR9p4C3nfLtL\"]},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0xf101e8720213560fab41104d53b3cc7ba0456ef3a98455aa7f022391783144a0\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://3e7820bcf567e6892d937c3cb10db263a4042e446799bca602535868d822384e\",\"dweb:/ipfs/QmPG2oeDjKncqsEeyYGjAN7CwAJmMgHterXGGnpzhha4z7\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\":{\"keccak256\":\"0xd9517254724276e2e8de3769183c1f738f445f0095c26fd9b86d3c6687e887b9\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://0e604bcdcd5e5b2fb299ad09769cde6db19d5aa1929d1b5e939234a0f10d7eb8\",\"dweb:/ipfs/Qmd8hXE3GZfBHuWx3RNiYgFW2ci7KvHtib8DiwzJ2dgo9V\"]},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"keccak256\":\"0xa28007762d9da9db878dd421960c8cb9a10471f47ab5c1b3309bfe48e9e79ff4\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://796ab6e88af7bf0e78def0f059310c903af6a312b565344e0ff524a0f26e81c6\",\"dweb:/ipfs/QmcsVgLgzWdor3UnAztUkXKNGcysm1MPneWksF72AvnwBx\"]},\"project:/contracts/ONEWallet.sol\":{\"keccak256\":\"0x3c460e524aa8f0f382ba1b2664859e44fee3eb4e981cc4afce3bb88a4a6ed7c2\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://5529453131bc55a1ccbdb48f9443b7c6b1ac3dfa3fc6fa3dc2866cc6839e9db3\",\"dweb:/ipfs/QmeZVpS7mAgCPJyq1iPSjWwj3XbieqssMjxTLieMT4Gy3X\"]},\"project:/contracts/TokenTracker.sol\":{\"keccak256\":\"0x153e8bd4263b7b071e5c4e9e44f5da2afb16c74207e8a6a071c837721de1747b\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://5550ad4a2929a9216432939182544a355ccfa1fdc04566497d4215d08171d115\",\"dweb:/ipfs/QmRkCR7qmJP6oLqFs7FbAZNgQUV9PNRLweP4Kkv3L81AW7\"]}},\"version\":1}",
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-                          "name": "eq",
-                          "nodeType": "YulIdentifier",
-                          "src": "1060:2:8"
-                        },
-                        "nodeType": "YulFunctionCall",
-                        "src": "1060:42:8"
+                        "name": "x_1",
+                        "nodeType": "YulIdentifier",
+                        "src": "2720:3:8"
+                      },
+                      {
+                        "name": "y_1",
+                        "nodeType": "YulIdentifier",
+                        "src": "2725:3:8"
                       }
                     ],
                     "functionName": {
-                      "name": "iszero",
+                      "name": "lt",
                       "nodeType": "YulIdentifier",
-                      "src": "1053:6:8"
+                      "src": "2717:2:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "1053:50:8"
+                    "src": "2717:12:8"
                   },
                   "nodeType": "YulIf",
-                  "src": "1050:2:8"
-                },
-                {
-                  "nodeType": "YulAssignment",
-                  "src": "1139:15:8",
-                  "value": {
-                    "name": "value",
-                    "nodeType": "YulIdentifier",
-                    "src": "1149:5:8"
-                  },
-                  "variableNames": [
-                    {
-                      "name": "value6",
-                      "nodeType": "YulIdentifier",
-                      "src": "1139:6:8"
-                    }
-                  ]
+                  "src": "2714:2:8"
                 },
                 {
                   "nodeType": "YulAssignment",
-                  "src": "1163:36:8",
+                  "src": "2761:21:8",
                   "value": {
                     "arguments": [
                       {
-                        "arguments": [
-                          {
-                            "name": "headStart",
-                            "nodeType": "YulIdentifier",
-                            "src": "1183:9:8"
-                          },
-                          {
-                            "kind": "number",
-                            "nodeType": "YulLiteral",
-                            "src": "1194:3:8",
-                            "type": "",
-                            "value": "224"
-                          }
-                        ],
-                        "functionName": {
-                          "name": "add",
-                          "nodeType": "YulIdentifier",
-                          "src": "1179:3:8"
-                        },
-                        "nodeType": "YulFunctionCall",
-                        "src": "1179:19:8"
+                        "name": "x_1",
+                        "nodeType": "YulIdentifier",
+                        "src": "2773:3:8"
+                      },
+                      {
+                        "name": "y_1",
+                        "nodeType": "YulIdentifier",
+                        "src": "2778:3:8"
                       }
                     ],
                     "functionName": {
-                      "name": "mload",
+                      "name": "sub",
                       "nodeType": "YulIdentifier",
-                      "src": "1173:5:8"
+                      "src": "2769:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "1173:26:8"
+                    "src": "2769:13:8"
                   },
                   "variableNames": [
                     {
-                      "name": "value7",
+                      "name": "diff",
                       "nodeType": "YulIdentifier",
-                      "src": "1163:6:8"
+                      "src": "2761:4:8"
                     }
                   ]
                 }
               ]
             },
-            "name": "abi_decode_tuple_t_bytes32t_uint8t_uint8t_uint32t_uint32t_uint8t_address_payablet_uint256_fromMemory",
+            "name": "checked_sub_t_uint8",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
-                "name": "headStart",
+                "name": "x",
                 "nodeType": "YulTypedName",
-                "src": "461:9:8",
+                "src": "2622:1:8",
                 "type": ""
               },
               {
-                "name": "dataEnd",
+                "name": "y",
                 "nodeType": "YulTypedName",
-                "src": "472:7:8",
+                "src": "2625:1:8",
                 "type": ""
               }
             ],
             "returnVariables": [
               {
-                "name": "value0",
-                "nodeType": "YulTypedName",
-                "src": "484:6:8",
-                "type": ""
-              },
-              {
-                "name": "value1",
-                "nodeType": "YulTypedName",
-                "src": "492:6:8",
-                "type": ""
-              },
-              {
-                "name": "value2",
-                "nodeType": "YulTypedName",
-                "src": "500:6:8",
-                "type": ""
-              },
-              {
-                "name": "value3",
-                "nodeType": "YulTypedName",
-                "src": "508:6:8",
-                "type": ""
-              },
-              {
-                "name": "value4",
-                "nodeType": "YulTypedName",
-                "src": "516:6:8",
-                "type": ""
-              },
-              {
-                "name": "value5",
-                "nodeType": "YulTypedName",
-                "src": "524:6:8",
-                "type": ""
-              },
-              {
-                "name": "value6",
-                "nodeType": "YulTypedName",
-                "src": "532:6:8",
-                "type": ""
-              },
-              {
-                "name": "value7",
+                "name": "diff",
                 "nodeType": "YulTypedName",
-                "src": "540:6:8",
+                "src": "2631:4:8",
                 "type": ""
               }
             ],
-            "src": "351:854:8"
+            "src": "2593:195:8"
+          },
+          {
+            "body": {
+              "nodeType": "YulBlock",
+              "src": "2825:95:8",
+              "statements": [
+                {
+                  "expression": {
+                    "arguments": [
+                      {
+                        "kind": "number",
+                        "nodeType": "YulLiteral",
+                        "src": "2842:1:8",
+                        "type": "",
+                        "value": "0"
+                      },
+                      {
+                        "arguments": [
+                          {
+                            "kind": "number",
+                            "nodeType": "YulLiteral",
+                            "src": "2849:3:8",
+                            "type": "",
+                            "value": "224"
+                          },
+                          {
+                            "kind": "number",
+                            "nodeType": "YulLiteral",
+                            "src": "2854:10:8",
+                            "type": "",
+                            "value": "0x4e487b71"
+                          }
+                        ],
+                        "functionName": {
+                          "name": "shl",
+                          "nodeType": "YulIdentifier",
+                          "src": "2845:3:8"
+                        },
+                        "nodeType": "YulFunctionCall",
+                        "src": "2845:20:8"
+                      }
+                    ],
+                    "functionName": {
+                      "name": "mstore",
+                      "nodeType": "YulIdentifier",
+                      "src": "2835:6:8"
+                    },
+                    "nodeType": "YulFunctionCall",
+                    "src": "2835:31:8"
+                  },
+                  "nodeType": "YulExpressionStatement",
+                  "src": "2835:31:8"
+                },
+                {
+                  "expression": {
+                    "arguments": [
+                      {
+                        "kind": "number",
+                        "nodeType": "YulLiteral",
+                        "src": "2882:1:8",
+                        "type": "",
+                        "value": "4"
+                      },
+                      {
+                        "kind": "number",
+                        "nodeType": "YulLiteral",
+                        "src": "2885:4:8",
+                        "type": "",
+                        "value": "0x11"
+                      }
+                    ],
+                    "functionName": {
+                      "name": "mstore",
+                      "nodeType": "YulIdentifier",
+                      "src": "2875:6:8"
+                    },
+                    "nodeType": "YulFunctionCall",
+                    "src": "2875:15:8"
+                  },
+                  "nodeType": "YulExpressionStatement",
+                  "src": "2875:15:8"
+                },
+                {
+                  "expression": {
+                    "arguments": [
+                      {
+                        "kind": "number",
+                        "nodeType": "YulLiteral",
+                        "src": "2906:1:8",
+                        "type": "",
+                        "value": "0"
+                      },
+                      {
+                        "kind": "number",
+                        "nodeType": "YulLiteral",
+                        "src": "2909:4:8",
+                        "type": "",
+                        "value": "0x24"
+                      }
+                    ],
+                    "functionName": {
+                      "name": "revert",
+                      "nodeType": "YulIdentifier",
+                      "src": "2899:6:8"
+                    },
+                    "nodeType": "YulFunctionCall",
+                    "src": "2899:15:8"
+                  },
+                  "nodeType": "YulExpressionStatement",
+                  "src": "2899:15:8"
+                }
+              ]
+            },
+            "name": "panic_error_0x11",
+            "nodeType": "YulFunctionDefinition",
+            "src": "2793:127:8"
           }
         ]
       },
-      "contents": "{\n    { }\n    function abi_decode_uint32_fromMemory(offset) -> value\n    {\n        value := mload(offset)\n        if iszero(eq(value, and(value, 0xffffffff))) { revert(0, 0) }\n    }\n    function abi_decode_uint8_fromMemory(offset) -> value\n    {\n        value := mload(offset)\n        if iszero(eq(value, and(value, 0xff))) { revert(0, 0) }\n    }\n    function abi_decode_tuple_t_bytes32t_uint8t_uint8t_uint32t_uint32t_uint8t_address_payablet_uint256_fromMemory(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5, value6, value7\n    {\n        if slt(sub(dataEnd, headStart), 256) { revert(value4, value4) }\n        value0 := mload(headStart)\n        value1 := abi_decode_uint8_fromMemory(add(headStart, 32))\n        value2 := abi_decode_uint8_fromMemory(add(headStart, 64))\n        value3 := abi_decode_uint32_fromMemory(add(headStart, 96))\n        value4 := abi_decode_uint32_fromMemory(add(headStart, 128))\n        value5 := abi_decode_uint8_fromMemory(add(headStart, 160))\n        let value := mload(add(headStart, 192))\n        if iszero(eq(value, and(value, sub(shl(160, 1), 1)))) { revert(value6, value6) }\n        value6 := value\n        value7 := mload(add(headStart, 224))\n    }\n}",
+      "contents": "{\n    { }\n    function abi_decode_uint32_fromMemory(offset) -> value\n    {\n        value := mload(offset)\n        if iszero(eq(value, and(value, 0xffffffff))) { revert(0, 0) }\n    }\n    function abi_decode_uint8_fromMemory(offset) -> value\n    {\n        value := mload(offset)\n        if iszero(eq(value, and(value, 0xff))) { revert(0, 0) }\n    }\n    function abi_decode_tuple_t_bytes32t_uint8t_uint8t_uint32t_uint32t_uint8t_address_payablet_uint256_fromMemory(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5, value6, value7\n    {\n        if slt(sub(dataEnd, headStart), 256) { revert(value4, value4) }\n        value0 := mload(headStart)\n        value1 := abi_decode_uint8_fromMemory(add(headStart, 32))\n        value2 := abi_decode_uint8_fromMemory(add(headStart, 64))\n        value3 := abi_decode_uint32_fromMemory(add(headStart, 96))\n        value4 := abi_decode_uint32_fromMemory(add(headStart, 128))\n        value5 := abi_decode_uint8_fromMemory(add(headStart, 160))\n        let value := mload(add(headStart, 192))\n        if iszero(eq(value, and(value, sub(shl(160, 1), 1)))) { revert(value6, value6) }\n        value6 := value\n        value7 := mload(add(headStart, 224))\n    }\n    function checked_exp_helper(_base, exponent) -> power, base\n    {\n        let power_1 := 1\n        power := power_1\n        base := _base\n        for { } gt(exponent, power_1) { }\n        {\n            if gt(base, div(not(0), base)) { panic_error_0x11() }\n            if and(exponent, power_1) { power := mul(power, base) }\n            base := mul(base, base)\n            exponent := shr(power_1, exponent)\n        }\n    }\n    function checked_exp_t_uint256_t_uint8(base, exponent) -> power\n    {\n        power := checked_exp_unsigned(base, and(exponent, 0xff))\n    }\n    function checked_exp_unsigned(base, exponent) -> power\n    {\n        if iszero(exponent)\n        {\n            power := 1\n            leave\n        }\n        if iszero(base)\n        {\n            power := 0\n            leave\n        }\n        switch base\n        case 1 {\n            power := 1\n            leave\n        }\n        case 2 {\n            if gt(exponent, 255) { panic_error_0x11() }\n            power := shl(exponent, 1)\n            leave\n        }\n        if or(and(lt(base, 11), lt(exponent, 78)), and(lt(base, 307), lt(exponent, 32)))\n        {\n            power := exp(base, exponent)\n            leave\n        }\n        let power_1, base_1 := checked_exp_helper(base, exponent)\n        if gt(power_1, div(not(0), base_1)) { panic_error_0x11() }\n        power := mul(power_1, base_1)\n    }\n    function checked_sub_t_uint8(x, y) -> diff\n    {\n        let x_1 := and(x, 0xff)\n        let y_1 := and(y, 0xff)\n        if lt(x_1, y_1) { panic_error_0x11() }\n        diff := sub(x_1, y_1)\n    }\n    function panic_error_0x11()\n    {\n        mstore(0, shl(224, 0x4e487b71))\n        mstore(4, 0x11)\n        revert(0, 0x24)\n    }\n}",
       "id": 8,
       "language": "Yul",
       "name": "#utility.yul"
@@ -1951,7 +3269,7 @@
     {
       "ast": {
         "nodeType": "YulBlock",
-        "src": "0:36433:8",
+        "src": "0:37115:8",
         "statements": [
           {
             "nodeType": "YulBlock",
@@ -2806,7 +4124,7 @@
                             "nodeType": "YulLiteral",
                             "src": "1061:1:8",
                             "type": "",
-                            "value": "7"
+                            "value": "8"
                           }
                         ],
                         "functionName": {
@@ -5890,7 +7208,7 @@
                 }
               ]
             },
-            "name": "abi_decode_tuple_t_array$_t_bytes32_$dyn_calldata_ptrt_uint32t_bytes32t_enum$_OperationType_$103t_enum$_TokenType_$2176t_addresst_uint256t_address_payablet_uint256t_bytes_calldata_ptr",
+            "name": "abi_decode_tuple_t_array$_t_bytes32_$dyn_calldata_ptrt_uint32t_bytes32t_enum$_OperationType_$493t_enum$_TokenType_$2607t_addresst_uint256t_address_payablet_uint256t_bytes_calldata_ptr",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
@@ -9842,32 +11160,175 @@
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "11083:137:8",
+              "src": "11093:126:8",
+              "statements": [
+                {
+                  "expression": {
+                    "arguments": [
+                      {
+                        "name": "pos",
+                        "nodeType": "YulIdentifier",
+                        "src": "11116:3:8"
+                      },
+                      {
+                        "name": "value0",
+                        "nodeType": "YulIdentifier",
+                        "src": "11121:6:8"
+                      },
+                      {
+                        "name": "value1",
+                        "nodeType": "YulIdentifier",
+                        "src": "11129:6:8"
+                      }
+                    ],
+                    "functionName": {
+                      "name": "calldatacopy",
+                      "nodeType": "YulIdentifier",
+                      "src": "11103:12:8"
+                    },
+                    "nodeType": "YulFunctionCall",
+                    "src": "11103:33:8"
+                  },
+                  "nodeType": "YulExpressionStatement",
+                  "src": "11103:33:8"
+                },
+                {
+                  "nodeType": "YulVariableDeclaration",
+                  "src": "11145:26:8",
+                  "value": {
+                    "arguments": [
+                      {
+                        "name": "pos",
+                        "nodeType": "YulIdentifier",
+                        "src": "11159:3:8"
+                      },
+                      {
+                        "name": "value1",
+                        "nodeType": "YulIdentifier",
+                        "src": "11164:6:8"
+                      }
+                    ],
+                    "functionName": {
+                      "name": "add",
+                      "nodeType": "YulIdentifier",
+                      "src": "11155:3:8"
+                    },
+                    "nodeType": "YulFunctionCall",
+                    "src": "11155:16:8"
+                  },
+                  "variables": [
+                    {
+                      "name": "_1",
+                      "nodeType": "YulTypedName",
+                      "src": "11149:2:8",
+                      "type": ""
+                    }
+                  ]
+                },
+                {
+                  "expression": {
+                    "arguments": [
+                      {
+                        "name": "_1",
+                        "nodeType": "YulIdentifier",
+                        "src": "11187:2:8"
+                      },
+                      {
+                        "name": "end",
+                        "nodeType": "YulIdentifier",
+                        "src": "11191:3:8"
+                      }
+                    ],
+                    "functionName": {
+                      "name": "mstore",
+                      "nodeType": "YulIdentifier",
+                      "src": "11180:6:8"
+                    },
+                    "nodeType": "YulFunctionCall",
+                    "src": "11180:15:8"
+                  },
+                  "nodeType": "YulExpressionStatement",
+                  "src": "11180:15:8"
+                },
+                {
+                  "nodeType": "YulAssignment",
+                  "src": "11204:9:8",
+                  "value": {
+                    "name": "_1",
+                    "nodeType": "YulIdentifier",
+                    "src": "11211:2:8"
+                  },
+                  "variableNames": [
+                    {
+                      "name": "end",
+                      "nodeType": "YulIdentifier",
+                      "src": "11204:3:8"
+                    }
+                  ]
+                }
+              ]
+            },
+            "name": "abi_encode_tuple_packed_t_bytes_calldata_ptr__to_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed",
+            "nodeType": "YulFunctionDefinition",
+            "parameters": [
+              {
+                "name": "pos",
+                "nodeType": "YulTypedName",
+                "src": "11061:3:8",
+                "type": ""
+              },
+              {
+                "name": "value1",
+                "nodeType": "YulTypedName",
+                "src": "11066:6:8",
+                "type": ""
+              },
+              {
+                "name": "value0",
+                "nodeType": "YulTypedName",
+                "src": "11074:6:8",
+                "type": ""
+              }
+            ],
+            "returnVariables": [
+              {
+                "name": "end",
+                "nodeType": "YulTypedName",
+                "src": "11085:3:8",
+                "type": ""
+              }
+            ],
+            "src": "10946:273:8"
+          },
+          {
+            "body": {
+              "nodeType": "YulBlock",
+              "src": "11361:137:8",
               "statements": [
                 {
                   "nodeType": "YulVariableDeclaration",
-                  "src": "11093:27:8",
+                  "src": "11371:27:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "value0",
                         "nodeType": "YulIdentifier",
-                        "src": "11113:6:8"
+                        "src": "11391:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mload",
                       "nodeType": "YulIdentifier",
-                      "src": "11107:5:8"
+                      "src": "11385:5:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "11107:13:8"
+                    "src": "11385:13:8"
                   },
                   "variables": [
                     {
                       "name": "length",
                       "nodeType": "YulTypedName",
-                      "src": "11097:6:8",
+                      "src": "11375:6:8",
                       "type": ""
                     }
                   ]
@@ -9880,12 +11341,12 @@
                           {
                             "name": "value0",
                             "nodeType": "YulIdentifier",
-                            "src": "11155:6:8"
+                            "src": "11433:6:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "11163:4:8",
+                            "src": "11441:4:8",
                             "type": "",
                             "value": "0x20"
                           }
@@ -9893,62 +11354,62 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "11151:3:8"
+                          "src": "11429:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "11151:17:8"
+                        "src": "11429:17:8"
                       },
                       {
                         "name": "pos",
                         "nodeType": "YulIdentifier",
-                        "src": "11170:3:8"
+                        "src": "11448:3:8"
                       },
                       {
                         "name": "length",
                         "nodeType": "YulIdentifier",
-                        "src": "11175:6:8"
+                        "src": "11453:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "copy_memory_to_memory",
                       "nodeType": "YulIdentifier",
-                      "src": "11129:21:8"
+                      "src": "11407:21:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "11129:53:8"
+                    "src": "11407:53:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "11129:53:8"
+                  "src": "11407:53:8"
                 },
                 {
                   "nodeType": "YulAssignment",
-                  "src": "11191:23:8",
+                  "src": "11469:23:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "pos",
                         "nodeType": "YulIdentifier",
-                        "src": "11202:3:8"
+                        "src": "11480:3:8"
                       },
                       {
                         "name": "length",
                         "nodeType": "YulIdentifier",
-                        "src": "11207:6:8"
+                        "src": "11485:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "11198:3:8"
+                      "src": "11476:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "11198:16:8"
+                    "src": "11476:16:8"
                   },
                   "variableNames": [
                     {
                       "name": "end",
                       "nodeType": "YulIdentifier",
-                      "src": "11191:3:8"
+                      "src": "11469:3:8"
                     }
                   ]
                 }
@@ -9960,13 +11421,13 @@
               {
                 "name": "pos",
                 "nodeType": "YulTypedName",
-                "src": "11059:3:8",
+                "src": "11337:3:8",
                 "type": ""
               },
               {
                 "name": "value0",
                 "nodeType": "YulTypedName",
-                "src": "11064:6:8",
+                "src": "11342:6:8",
                 "type": ""
               }
             ],
@@ -9974,30 +11435,30 @@
               {
                 "name": "end",
                 "nodeType": "YulTypedName",
-                "src": "11075:3:8",
+                "src": "11353:3:8",
                 "type": ""
               }
             ],
-            "src": "10946:274:8"
+            "src": "11224:274:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "11416:14:8",
+              "src": "11694:14:8",
               "statements": [
                 {
                   "nodeType": "YulAssignment",
-                  "src": "11418:10:8",
+                  "src": "11696:10:8",
                   "value": {
                     "name": "pos",
                     "nodeType": "YulIdentifier",
-                    "src": "11425:3:8"
+                    "src": "11703:3:8"
                   },
                   "variableNames": [
                     {
                       "name": "end",
                       "nodeType": "YulIdentifier",
-                      "src": "11418:3:8"
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@@ -10009,7 +11470,7 @@
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                 "name": "pos",
                 "nodeType": "YulTypedName",
-                "src": "11400:3:8",
+                "src": "11678:3:8",
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@@ -10017,31 +11478,31 @@
               {
                 "name": "end",
                 "nodeType": "YulTypedName",
-                "src": "11408:3:8",
+                "src": "11686:3:8",
                 "type": ""
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+            "src": "11503:205:8"
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             "body": {
               "nodeType": "YulBlock",
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+                  "src": "11824:26:8",
                   "value": {
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                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
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+                        "src": "11836:9:8"
                       },
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                         "kind": "number",
                         "nodeType": "YulLiteral",
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+                        "src": "11847:2:8",
                         "type": "",
                         "value": "32"
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@@ -10049,16 +11510,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
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                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "11546:4:8"
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@@ -10068,14 +11529,14 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "11588:9:8"
+                        "src": "11866:9:8"
                       },
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                           {
                             "name": "value0",
                             "nodeType": "YulIdentifier",
-                            "src": "11603:6:8"
+                            "src": "11881:6:8"
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@@ -10084,14 +11545,14 @@
                                   {
                                     "kind": "number",
                                     "nodeType": "YulLiteral",
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+                                    "src": "11897:3:8",
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                                     "value": "160"
                                   },
                                   {
                                     "kind": "number",
                                     "nodeType": "YulLiteral",
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+                                    "src": "11902:1:8",
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                                     "value": "1"
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@@ -10099,15 +11560,15 @@
                                 "functionName": {
                                   "name": "shl",
                                   "nodeType": "YulIdentifier",
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+                                  "src": "11893:3:8"
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+                                "src": "11893:11:8"
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                                 "nodeType": "YulLiteral",
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                                 "value": "1"
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@@ -10115,31 +11576,31 @@
                             "functionName": {
                               "name": "sub",
                               "nodeType": "YulIdentifier",
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+                              "src": "11889:3:8"
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+                            "src": "11889:19:8"
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                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "11599:3:8"
+                          "src": "11877:3:8"
                         },
                         "nodeType": "YulFunctionCall",
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+                        "src": "11877:32:8"
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                       "name": "mstore",
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@@ -10149,13 +11610,13 @@
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                 "nodeType": "YulTypedName",
-                "src": "11505:9:8",
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                 "nodeType": "YulTypedName",
-                "src": "11516:6:8",
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@@ -10163,31 +11624,31 @@
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                 "name": "tail",
                 "nodeType": "YulTypedName",
-                "src": "11527:4:8",
+                "src": "11805:4:8",
                 "type": ""
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                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "11774:9:8"
+                        "src": "12052:9:8"
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                         "nodeType": "YulLiteral",
-                        "src": "11785:2:8",
+                        "src": "12063:2:8",
                         "type": "",
                         "value": "32"
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@@ -10195,16 +11656,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
-                      "src": "11762:4:8"
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@@ -10214,14 +11675,14 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "11804:9:8"
+                        "src": "12082:9:8"
                       },
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                             "name": "value0",
                             "nodeType": "YulIdentifier",
-                            "src": "11819:6:8"
+                            "src": "12097:6:8"
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@@ -10230,14 +11691,14 @@
                                   {
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                                     "nodeType": "YulLiteral",
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+                                    "src": "12113:3:8",
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                                     "value": "160"
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                                     "nodeType": "YulLiteral",
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                                     "value": "1"
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@@ -10245,15 +11706,15 @@
                                 "functionName": {
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                                   "nodeType": "YulIdentifier",
-                                  "src": "11831:3:8"
+                                  "src": "12109:3:8"
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                                 "nodeType": "YulLiteral",
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@@ -10261,31 +11722,31 @@
                             "functionName": {
                               "name": "sub",
                               "nodeType": "YulIdentifier",
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+                              "src": "12105:3:8"
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                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
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+                          "src": "12093:3:8"
                         },
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                       "name": "mstore",
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@@ -10295,13 +11756,13 @@
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                 "nodeType": "YulTypedName",
-                "src": "11721:9:8",
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                 "nodeType": "YulTypedName",
-                "src": "11732:6:8",
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@@ -10309,20 +11770,20 @@
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-                "src": "11743:4:8",
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@@ -10330,14 +11791,14 @@
                           {
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                             "nodeType": "YulLiteral",
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                             "nodeType": "YulLiteral",
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@@ -10345,15 +11806,15 @@
                         "functionName": {
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                           "nodeType": "YulIdentifier",
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+                          "src": "12364:3:8"
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@@ -10361,16 +11822,16 @@
                     "functionName": {
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@@ -10381,40 +11842,40 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
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+                        "src": "12395:9:8"
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                             "name": "value0",
                             "nodeType": "YulIdentifier",
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+                            "src": "12410:6:8"
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                             "nodeType": "YulIdentifier",
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                           "nodeType": "YulIdentifier",
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+                          "src": "12406:3:8"
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@@ -10424,12 +11885,12 @@
                           {
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                             "nodeType": "YulIdentifier",
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+                            "src": "12442:9:8"
                           },
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                             "nodeType": "YulLiteral",
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+                            "src": "12453:2:8",
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                             "value": "32"
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@@ -10437,43 +11898,43 @@
                         "functionName": {
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                           "nodeType": "YulIdentifier",
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+                          "src": "12438:3:8"
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+                        "src": "12438:18:8"
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                             "name": "value1",
                             "nodeType": "YulIdentifier",
-                            "src": "12184:6:8"
+                            "src": "12462:6:8"
                           },
                           {
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                             "nodeType": "YulIdentifier",
-                            "src": "12192:2:8"
+                            "src": "12470:2:8"
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                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "12180:3:8"
+                          "src": "12458:3:8"
                         },
                         "nodeType": "YulFunctionCall",
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                       "name": "mstore",
                       "nodeType": "YulIdentifier",
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@@ -10483,12 +11944,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "12216:9:8"
+                            "src": "12494:9:8"
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                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "12227:2:8",
+                            "src": "12505:2:8",
                             "type": "",
                             "value": "64"
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@@ -10496,27 +11957,27 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "12212:3:8"
+                          "src": "12490:3:8"
                         },
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+                        "src": "12490:18:8"
                       },
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                         "nodeType": "YulIdentifier",
-                        "src": "12232:6:8"
+                        "src": "12510:6:8"
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                       "name": "mstore",
                       "nodeType": "YulIdentifier",
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@@ -10526,12 +11987,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
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+                            "src": "12537:9:8"
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                             "nodeType": "YulLiteral",
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+                            "src": "12548:2:8",
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                             "value": "96"
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@@ -10539,15 +12000,15 @@
                         "functionName": {
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                           "nodeType": "YulIdentifier",
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+                          "src": "12533:3:8"
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@@ -10555,35 +12016,35 @@
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                         "nodeType": "YulIdentifier",
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                             "name": "headStart",
                             "nodeType": "YulIdentifier",
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+                            "src": "12603:9:8"
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                             "nodeType": "YulLiteral",
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+                            "src": "12614:3:8",
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@@ -10591,25 +12052,25 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "12321:3:8"
+                          "src": "12599:3:8"
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                       "nodeType": "YulIdentifier",
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@@ -10621,31 +12082,31 @@
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                 "nodeType": "YulTypedName",
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                 "nodeType": "YulTypedName",
-                "src": "12018:6:8",
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                 "name": "value2",
                 "nodeType": "YulTypedName",
-                "src": "12026:6:8",
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                 "nodeType": "YulTypedName",
-                "src": "12034:6:8",
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                 "nodeType": "YulTypedName",
-                "src": "12042:6:8",
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@@ -10653,20 +12114,20 @@
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-                "src": "12053:4:8",
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@@ -10674,14 +12135,14 @@
                           {
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                             "nodeType": "YulLiteral",
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                             "value": "160"
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                             "nodeType": "YulLiteral",
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@@ -10689,15 +12150,15 @@
                         "functionName": {
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                           "nodeType": "YulIdentifier",
-                          "src": "12617:3:8"
+                          "src": "12895:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "12617:11:8"
+                        "src": "12895:11:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "12630:1:8",
+                        "src": "12908:1:8",
                         "type": "",
                         "value": "1"
                       }
@@ -10705,16 +12166,16 @@
                     "functionName": {
                       "name": "sub",
                       "nodeType": "YulIdentifier",
-                      "src": "12613:3:8"
+                      "src": "12891:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "12613:19:8"
+                    "src": "12891:19:8"
                   },
                   "variables": [
                     {
                       "name": "_1",
                       "nodeType": "YulTypedName",
-                      "src": "12607:2:8",
+                      "src": "12885:2:8",
                       "type": ""
                     }
                   ]
@@ -10725,40 +12186,40 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "12648:9:8"
+                        "src": "12926:9:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value0",
                             "nodeType": "YulIdentifier",
-                            "src": "12663:6:8"
+                            "src": "12941:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "12671:2:8"
+                            "src": "12949:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "12659:3:8"
+                          "src": "12937:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "12659:15:8"
+                        "src": "12937:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "12641:6:8"
+                      "src": "12919:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "12641:34:8"
+                    "src": "12919:34:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "12641:34:8"
+                  "src": "12919:34:8"
                 },
                 {
                   "expression": {
@@ -10768,12 +12229,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "12695:9:8"
+                            "src": "12973:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "12706:2:8",
+                            "src": "12984:2:8",
                             "type": "",
                             "value": "32"
                           }
@@ -10781,43 +12242,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "12691:3:8"
+                          "src": "12969:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "12691:18:8"
+                        "src": "12969:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value1",
                             "nodeType": "YulIdentifier",
-                            "src": "12715:6:8"
+                            "src": "12993:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "12723:2:8"
+                            "src": "13001:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "12711:3:8"
+                          "src": "12989:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "12711:15:8"
+                        "src": "12989:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "12684:6:8"
+                      "src": "12962:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "12684:43:8"
+                    "src": "12962:43:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "12684:43:8"
+                  "src": "12962:43:8"
                 },
                 {
                   "expression": {
@@ -10827,12 +12288,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "12747:9:8"
+                            "src": "13025:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "12758:2:8",
+                            "src": "13036:2:8",
                             "type": "",
                             "value": "64"
                           }
@@ -10840,27 +12301,27 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "12743:3:8"
+                          "src": "13021:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "12743:18:8"
+                        "src": "13021:18:8"
                       },
                       {
                         "name": "value2",
                         "nodeType": "YulIdentifier",
-                        "src": "12763:6:8"
+                        "src": "13041:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "12736:6:8"
+                      "src": "13014:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "12736:34:8"
+                    "src": "13014:34:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "12736:34:8"
+                  "src": "13014:34:8"
                 },
                 {
                   "expression": {
@@ -10870,12 +12331,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "12790:9:8"
+                            "src": "13068:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "12801:2:8",
+                            "src": "13079:2:8",
                             "type": "",
                             "value": "96"
                           }
@@ -10883,27 +12344,27 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "12786:3:8"
+                          "src": "13064:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "12786:18:8"
+                        "src": "13064:18:8"
                       },
                       {
                         "name": "value3",
                         "nodeType": "YulIdentifier",
-                        "src": "12806:6:8"
+                        "src": "13084:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "12779:6:8"
+                      "src": "13057:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "12779:34:8"
+                    "src": "13057:34:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "12779:34:8"
+                  "src": "13057:34:8"
                 },
                 {
                   "expression": {
@@ -10913,12 +12374,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "12833:9:8"
+                            "src": "13111:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "12844:3:8",
+                            "src": "13122:3:8",
                             "type": "",
                             "value": "128"
                           }
@@ -10926,15 +12387,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "12829:3:8"
+                          "src": "13107:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "12829:19:8"
+                        "src": "13107:19:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "12850:3:8",
+                        "src": "13128:3:8",
                         "type": "",
                         "value": "160"
                       }
@@ -10942,40 +12403,40 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "12822:6:8"
+                      "src": "13100:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "12822:32:8"
+                    "src": "13100:32:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "12822:32:8"
+                  "src": "13100:32:8"
                 },
                 {
                   "nodeType": "YulAssignment",
-                  "src": "12863:70:8",
+                  "src": "13141:70:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "value4",
                         "nodeType": "YulIdentifier",
-                        "src": "12897:6:8"
+                        "src": "13175:6:8"
                       },
                       {
                         "name": "value5",
                         "nodeType": "YulIdentifier",
-                        "src": "12905:6:8"
+                        "src": "13183:6:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "12917:9:8"
+                            "src": "13195:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "12928:3:8",
+                            "src": "13206:3:8",
                             "type": "",
                             "value": "160"
                           }
@@ -10983,25 +12444,25 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "12913:3:8"
+                          "src": "13191:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "12913:19:8"
+                        "src": "13191:19:8"
                       }
                     ],
                     "functionName": {
                       "name": "abi_encode_bytes_calldata",
                       "nodeType": "YulIdentifier",
-                      "src": "12871:25:8"
+                      "src": "13149:25:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "12871:62:8"
+                    "src": "13149:62:8"
                   },
                   "variableNames": [
                     {
                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "12863:4:8"
+                      "src": "13141:4:8"
                     }
                   ]
                 }
@@ -11013,43 +12474,43 @@
               {
                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "12522:9:8",
+                "src": "12800:9:8",
                 "type": ""
               },
               {
                 "name": "value5",
                 "nodeType": "YulTypedName",
-                "src": "12533:6:8",
+                "src": "12811:6:8",
                 "type": ""
               },
               {
                 "name": "value4",
                 "nodeType": "YulTypedName",
-                "src": "12541:6:8",
+                "src": "12819:6:8",
                 "type": ""
               },
               {
                 "name": "value3",
                 "nodeType": "YulTypedName",
-                "src": "12549:6:8",
+                "src": "12827:6:8",
                 "type": ""
               },
               {
                 "name": "value2",
                 "nodeType": "YulTypedName",
-                "src": "12557:6:8",
+                "src": "12835:6:8",
                 "type": ""
               },
               {
                 "name": "value1",
                 "nodeType": "YulTypedName",
-                "src": "12565:6:8",
+                "src": "12843:6:8",
                 "type": ""
               },
               {
                 "name": "value0",
                 "nodeType": "YulTypedName",
-                "src": "12573:6:8",
+                "src": "12851:6:8",
                 "type": ""
               }
             ],
@@ -11057,20 +12518,20 @@
               {
                 "name": "tail",
                 "nodeType": "YulTypedName",
-                "src": "12584:4:8",
+                "src": "12862:4:8",
                 "type": ""
               }
             ],
-            "src": "12352:587:8"
+            "src": "12630:587:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "13175:329:8",
+              "src": "13453:329:8",
               "statements": [
                 {
                   "nodeType": "YulVariableDeclaration",
-                  "src": "13185:29:8",
+                  "src": "13463:29:8",
                   "value": {
                     "arguments": [
                       {
@@ -11078,14 +12539,14 @@
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "13203:3:8",
+                            "src": "13481:3:8",
                             "type": "",
                             "value": "160"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "13208:1:8",
+                            "src": "13486:1:8",
                             "type": "",
                             "value": "1"
                           }
@@ -11093,15 +12554,15 @@
                         "functionName": {
                           "name": "shl",
                           "nodeType": "YulIdentifier",
-                          "src": "13199:3:8"
+                          "src": "13477:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "13199:11:8"
+                        "src": "13477:11:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "13212:1:8",
+                        "src": "13490:1:8",
                         "type": "",
                         "value": "1"
                       }
@@ -11109,16 +12570,16 @@
                     "functionName": {
                       "name": "sub",
                       "nodeType": "YulIdentifier",
-                      "src": "13195:3:8"
+                      "src": "13473:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "13195:19:8"
+                    "src": "13473:19:8"
                   },
                   "variables": [
                     {
                       "name": "_1",
                       "nodeType": "YulTypedName",
-                      "src": "13189:2:8",
+                      "src": "13467:2:8",
                       "type": ""
                     }
                   ]
@@ -11129,40 +12590,40 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "13230:9:8"
+                        "src": "13508:9:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value0",
                             "nodeType": "YulIdentifier",
-                            "src": "13245:6:8"
+                            "src": "13523:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "13253:2:8"
+                            "src": "13531:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "13241:3:8"
+                          "src": "13519:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "13241:15:8"
+                        "src": "13519:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "13223:6:8"
+                      "src": "13501:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "13223:34:8"
+                    "src": "13501:34:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "13223:34:8"
+                  "src": "13501:34:8"
                 },
                 {
                   "expression": {
@@ -11172,12 +12633,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "13277:9:8"
+                            "src": "13555:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "13288:2:8",
+                            "src": "13566:2:8",
                             "type": "",
                             "value": "32"
                           }
@@ -11185,43 +12646,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "13273:3:8"
+                          "src": "13551:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "13273:18:8"
+                        "src": "13551:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value1",
                             "nodeType": "YulIdentifier",
-                            "src": "13297:6:8"
+                            "src": "13575:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "13305:2:8"
+                            "src": "13583:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "13293:3:8"
+                          "src": "13571:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "13293:15:8"
+                        "src": "13571:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "13266:6:8"
+                      "src": "13544:6:8"
                     },
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-                    "src": "13266:43:8"
+                    "src": "13544:43:8"
                   },
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-                  "src": "13266:43:8"
+                  "src": "13544:43:8"
                 },
                 {
                   "expression": {
@@ -11231,12 +12692,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "13329:9:8"
+                            "src": "13607:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "13340:2:8",
+                            "src": "13618:2:8",
                             "type": "",
                             "value": "64"
                           }
@@ -11244,27 +12705,27 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "13325:3:8"
+                          "src": "13603:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "13325:18:8"
+                        "src": "13603:18:8"
                       },
                       {
                         "name": "value2",
                         "nodeType": "YulIdentifier",
-                        "src": "13345:6:8"
+                        "src": "13623:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "13318:6:8"
+                      "src": "13596:6:8"
                     },
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-                    "src": "13318:34:8"
+                    "src": "13596:34:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "13318:34:8"
+                  "src": "13596:34:8"
                 },
                 {
                   "expression": {
@@ -11274,12 +12735,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "13372:9:8"
+                            "src": "13650:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "13383:2:8",
+                            "src": "13661:2:8",
                             "type": "",
                             "value": "96"
                           }
@@ -11287,27 +12748,27 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "13368:3:8"
+                          "src": "13646:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "13368:18:8"
+                        "src": "13646:18:8"
                       },
                       {
                         "name": "value3",
                         "nodeType": "YulIdentifier",
-                        "src": "13388:6:8"
+                        "src": "13666:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "13361:6:8"
+                      "src": "13639:6:8"
                     },
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+                    "src": "13639:34:8"
                   },
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-                  "src": "13361:34:8"
+                  "src": "13639:34:8"
                 },
                 {
                   "expression": {
@@ -11317,12 +12778,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "13415:9:8"
+                            "src": "13693:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "13426:3:8",
+                            "src": "13704:3:8",
                             "type": "",
                             "value": "128"
                           }
@@ -11330,15 +12791,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "13411:3:8"
+                          "src": "13689:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "13411:19:8"
+                        "src": "13689:19:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "13432:3:8",
+                        "src": "13710:3:8",
                         "type": "",
                         "value": "160"
                       }
@@ -11346,35 +12807,35 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "13404:6:8"
+                      "src": "13682:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "13404:32:8"
+                    "src": "13682:32:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "13404:32:8"
+                  "src": "13682:32:8"
                 },
                 {
                   "nodeType": "YulAssignment",
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+                  "src": "13723:53:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "value4",
                         "nodeType": "YulIdentifier",
-                        "src": "13470:6:8"
+                        "src": "13748:6:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "13482:9:8"
+                            "src": "13760:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
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@@ -11382,25 +12843,25 @@
                         "functionName": {
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                           "nodeType": "YulIdentifier",
-                          "src": "13478:3:8"
+                          "src": "13756:3:8"
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+                        "src": "13756:19:8"
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                       "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
-                      "src": "13445:4:8"
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@@ -11412,37 +12873,37 @@
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                 "nodeType": "YulTypedName",
-                "src": "13112:9:8",
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                 "nodeType": "YulTypedName",
-                "src": "13123:6:8",
+                "src": "13401:6:8",
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                 "name": "value3",
                 "nodeType": "YulTypedName",
-                "src": "13131:6:8",
+                "src": "13409:6:8",
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               },
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                 "name": "value2",
                 "nodeType": "YulTypedName",
-                "src": "13139:6:8",
+                "src": "13417:6:8",
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                 "name": "value1",
                 "nodeType": "YulTypedName",
-                "src": "13147:6:8",
+                "src": "13425:6:8",
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                 "nodeType": "YulTypedName",
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@@ -11450,31 +12911,31 @@
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                 "nodeType": "YulTypedName",
-                "src": "13166:4:8",
+                "src": "13444:4:8",
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                         "nodeType": "YulIdentifier",
-                        "src": "13660:9:8"
+                        "src": "13938:9:8"
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                         "nodeType": "YulLiteral",
-                        "src": "13671:2:8",
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@@ -11482,16 +12943,16 @@
                     "functionName": {
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-                      "src": "13648:4:8"
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@@ -11501,14 +12962,14 @@
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                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "13690:9:8"
+                        "src": "13968:9:8"
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-                            "src": "13705:6:8"
+                            "src": "13983:6:8"
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@@ -11517,14 +12978,14 @@
                                   {
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                                     "nodeType": "YulLiteral",
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                                     "value": "160"
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                                     "nodeType": "YulLiteral",
-                                    "src": "13726:1:8",
+                                    "src": "14004:1:8",
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                                     "value": "1"
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@@ -11532,15 +12993,15 @@
                                 "functionName": {
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                                   "nodeType": "YulIdentifier",
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+                                  "src": "13995:3:8"
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                                 "nodeType": "YulLiteral",
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@@ -11548,31 +13009,31 @@
                             "functionName": {
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                               "nodeType": "YulIdentifier",
-                              "src": "13713:3:8"
+                              "src": "13991:3:8"
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                             "nodeType": "YulFunctionCall",
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+                            "src": "13991:19:8"
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                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "13701:3:8"
+                          "src": "13979:3:8"
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+                        "src": "13979:32:8"
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@@ -11582,12 +13043,12 @@
                           {
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                             "nodeType": "YulIdentifier",
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+                            "src": "14032:9:8"
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                             "nodeType": "YulLiteral",
-                            "src": "13765:2:8",
+                            "src": "14043:2:8",
                             "type": "",
                             "value": "32"
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@@ -11595,27 +13056,27 @@
                         "functionName": {
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                           "nodeType": "YulIdentifier",
-                          "src": "13750:3:8"
+                          "src": "14028:3:8"
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+                        "src": "14028:18:8"
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                         "nodeType": "YulIdentifier",
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@@ -11625,19 +13086,19 @@
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-                "src": "13599:9:8",
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                 "nodeType": "YulTypedName",
-                "src": "13610:6:8",
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-                "src": "13618:6:8",
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@@ -11645,16 +13106,16 @@
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                 "nodeType": "YulTypedName",
-                "src": "13629:4:8",
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@@ -11662,12 +13123,12 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "14260:9:8"
+                        "src": "14538:9:8"
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@@ -11675,35 +13136,35 @@
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                             "nodeType": "YulIdentifier",
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                             "nodeType": "YulLiteral",
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@@ -11711,25 +13172,25 @@
                         "functionName": {
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+                          "src": "14613:3:8"
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@@ -11742,12 +13203,12 @@
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                             "nodeType": "YulIdentifier",
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                             "nodeType": "YulLiteral",
-                            "src": "14386:2:8",
+                            "src": "14664:2:8",
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@@ -11755,73 +13216,73 @@
                         "functionName": {
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+                          "src": "14649:3:8"
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                             "nodeType": "YulIdentifier",
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                           "nodeType": "YulIdentifier",
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+                          "src": "14669:3:8"
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@@ -11834,12 +13295,12 @@
                           {
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+                            "src": "14779:9:8"
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                             "nodeType": "YulLiteral",
-                            "src": "14512:2:8",
+                            "src": "14790:2:8",
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                             "value": "64"
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@@ -11847,73 +13308,73 @@
                         "functionName": {
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                           "nodeType": "YulIdentifier",
-                          "src": "14497:3:8"
+                          "src": "14775:3:8"
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+                        "src": "14775:18:8"
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                             "nodeType": "YulIdentifier",
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+                            "src": "14799:6:8"
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                             "nodeType": "YulIdentifier",
-                            "src": "14529:9:8"
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                           "nodeType": "YulIdentifier",
-                          "src": "14517:3:8"
+                          "src": "14795:3:8"
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@@ -11926,12 +13387,12 @@
                           {
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@@ -11939,73 +13400,73 @@
                         "functionName": {
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+                          "src": "14901:3:8"
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                             "nodeType": "YulIdentifier",
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@@ -12018,12 +13479,12 @@
                           {
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@@ -12031,73 +13492,73 @@
                         "functionName": {
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+                          "src": "15026:3:8"
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                             "nodeType": "YulIdentifier",
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                         "nodeType": "YulIdentifier",
-                        "src": "14843:6:8"
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@@ -12109,37 +13570,37 @@
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                 "nodeType": "YulTypedName",
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                 "nodeType": "YulTypedName",
-                "src": "14215:6:8",
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@@ -12147,16 +13608,16 @@
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@@ -12164,12 +13625,12 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
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+                        "src": "15533:9:8"
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@@ -12177,35 +13638,35 @@
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                             "nodeType": "YulLiteral",
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@@ -12213,25 +13674,25 @@
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+                          "src": "15608:3:8"
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@@ -12244,12 +13705,12 @@
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                             "nodeType": "YulLiteral",
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@@ -12257,73 +13718,73 @@
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                           "nodeType": "YulIdentifier",
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@@ -12336,12 +13797,12 @@
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@@ -12349,73 +13810,73 @@
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                             "nodeType": "YulIdentifier",
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@@ -12428,12 +13889,12 @@
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                             "nodeType": "YulLiteral",
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@@ -12441,73 +13902,73 @@
                         "functionName": {
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+                          "src": "15895:3:8"
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                             "nodeType": "YulIdentifier",
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                           "nodeType": "YulIdentifier",
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@@ -12519,31 +13980,31 @@
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-                "src": "15210:6:8",
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-                "src": "15218:6:8",
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@@ -12551,31 +14012,31 @@
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-                "src": "15229:4:8",
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@@ -12583,16 +14044,16 @@
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@@ -12603,12 +14064,12 @@
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@@ -12616,55 +14077,55 @@
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-                        "src": "16306:2:8"
+                        "src": "16584:2:8"
                       }
                     ],
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "16294:3:8"
+                      "src": "16572:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "16294:15:8"
+                    "src": "16572:15:8"
                   },
                   "variables": [
                     {
                       "name": "srcPtr",
                       "nodeType": "YulTypedName",
-                      "src": "16284:6:8",
+                      "src": "16562:6:8",
                       "type": ""
                     }
                   ]
                 },
                 {
                   "nodeType": "YulVariableDeclaration",
-                  "src": "16318:13:8",
+                  "src": "16596:13:8",
                   "value": {
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                     "nodeType": "YulIdentifier",
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+                    "src": "16605:4:8"
                   },
                   "variables": [
                     {
                       "name": "i",
                       "nodeType": "YulTypedName",
-                      "src": "16322:1:8",
+                      "src": "16600:1:8",
                       "type": ""
                     }
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@@ -12800,7 +14261,7 @@
                 {
                   "body": {
                     "nodeType": "YulBlock",
-                    "src": "16389:139:8",
+                    "src": "16667:139:8",
                     "statements": [
                       {
                         "expression": {
@@ -12810,95 +14271,95 @@
                                 {
                                   "name": "srcPtr",
                                   "nodeType": "YulIdentifier",
-                                  "src": "16435:6:8"
+                                  "src": "16713:6:8"
                                 }
                               ],
                               "functionName": {
                                 "name": "mload",
                                 "nodeType": "YulIdentifier",
-                                "src": "16429:5:8"
+                                "src": "16707:5:8"
                               },
                               "nodeType": "YulFunctionCall",
-                              "src": "16429:13:8"
+                              "src": "16707:13:8"
                             },
                             {
                               "name": "pos",
                               "nodeType": "YulIdentifier",
-                              "src": "16444:3:8"
+                              "src": "16722:3:8"
                             }
                           ],
                           "functionName": {
                             "name": "abi_encode_enum_TokenType",
                             "nodeType": "YulIdentifier",
-                            "src": "16403:25:8"
+                            "src": "16681:25:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "16403:45:8"
+                          "src": "16681:45:8"
                         },
                         "nodeType": "YulExpressionStatement",
-                        "src": "16403:45:8"
+                        "src": "16681:45:8"
                       },
                       {
                         "nodeType": "YulAssignment",
-                        "src": "16461:19:8",
+                        "src": "16739:19:8",
                         "value": {
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                             {
                               "name": "pos",
                               "nodeType": "YulIdentifier",
-                              "src": "16472:3:8"
+                              "src": "16750:3:8"
                             },
                             {
                               "name": "_1",
                               "nodeType": "YulIdentifier",
-                              "src": "16477:2:8"
+                              "src": "16755:2:8"
                             }
                           ],
                           "functionName": {
                             "name": "add",
                             "nodeType": "YulIdentifier",
-                            "src": "16468:3:8"
+                            "src": "16746:3:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "16468:12:8"
+                          "src": "16746:12:8"
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                         "variableNames": [
                           {
                             "name": "pos",
                             "nodeType": "YulIdentifier",
-                            "src": "16461:3:8"
+                            "src": "16739:3:8"
                           }
                         ]
                       },
                       {
                         "nodeType": "YulAssignment",
-                        "src": "16493:25:8",
+                        "src": "16771:25:8",
                         "value": {
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                             {
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                               "nodeType": "YulIdentifier",
-                              "src": "16507:6:8"
+                              "src": "16785:6:8"
                             },
                             {
                               "name": "_1",
                               "nodeType": "YulIdentifier",
-                              "src": "16515:2:8"
+                              "src": "16793:2:8"
                             }
                           ],
                           "functionName": {
                             "name": "add",
                             "nodeType": "YulIdentifier",
-                            "src": "16503:3:8"
+                            "src": "16781:3:8"
                           },
                           "nodeType": "YulFunctionCall",
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+                          "src": "16781:15:8"
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                         "variableNames": [
                           {
                             "name": "srcPtr",
                             "nodeType": "YulIdentifier",
-                            "src": "16493:6:8"
+                            "src": "16771:6:8"
                           }
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@@ -12909,41 +14370,41 @@
                       {
                         "name": "i",
                         "nodeType": "YulIdentifier",
-                        "src": "16351:1:8"
+                        "src": "16629:1:8"
                       },
                       {
                         "name": "length",
                         "nodeType": "YulIdentifier",
-                        "src": "16354:6:8"
+                        "src": "16632:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "lt",
                       "nodeType": "YulIdentifier",
-                      "src": "16348:2:8"
+                      "src": "16626:2:8"
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                     "nodeType": "YulFunctionCall",
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+                    "src": "16626:13:8"
                   },
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-                    "src": "16362:18:8",
+                    "src": "16640:18:8",
                     "statements": [
                       {
                         "nodeType": "YulAssignment",
-                        "src": "16364:14:8",
+                        "src": "16642:14:8",
                         "value": {
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                             {
                               "name": "i",
                               "nodeType": "YulIdentifier",
-                              "src": "16373:1:8"
+                              "src": "16651:1:8"
                             },
                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
-                              "src": "16376:1:8",
+                              "src": "16654:1:8",
                               "type": "",
                               "value": "1"
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@@ -12951,16 +14412,16 @@
                           "functionName": {
                             "name": "add",
                             "nodeType": "YulIdentifier",
-                            "src": "16369:3:8"
+                            "src": "16647:3:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "16369:9:8"
+                          "src": "16647:9:8"
                         },
                         "variableNames": [
                           {
                             "name": "i",
                             "nodeType": "YulIdentifier",
-                            "src": "16364:1:8"
+                            "src": "16642:1:8"
                           }
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@@ -12968,10 +14429,10 @@
                   },
                   "pre": {
                     "nodeType": "YulBlock",
-                    "src": "16344:3:8",
+                    "src": "16622:3:8",
                     "statements": []
                   },
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+                  "src": "16618:188:8"
                 },
                 {
                   "expression": {
@@ -12981,96 +14442,96 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "16548:9:8"
+                            "src": "16826:9:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "16559:2:8"
+                            "src": "16837:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "16544:3:8"
+                          "src": "16822:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "16544:18:8"
+                        "src": "16822:18:8"
                       },
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                         "arguments": [
                           {
                             "name": "pos",
                             "nodeType": "YulIdentifier",
-                            "src": "16568:3:8"
+                            "src": "16846:3:8"
                           },
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "16573:9:8"
+                            "src": "16851:9:8"
                           }
                         ],
                         "functionName": {
                           "name": "sub",
                           "nodeType": "YulIdentifier",
-                          "src": "16564:3:8"
+                          "src": "16842:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "16564:19:8"
+                        "src": "16842:19:8"
                       }
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                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "16537:6:8"
+                      "src": "16815:6:8"
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+                    "src": "16815:47:8"
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+                  "src": "16871:16:8",
                   "value": {
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                     "nodeType": "YulIdentifier",
-                    "src": "16606:3:8"
+                    "src": "16884:3:8"
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                   "variables": [
                     {
                       "name": "pos_1",
                       "nodeType": "YulTypedName",
-                      "src": "16597:5:8",
+                      "src": "16875:5:8",
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                     }
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                   "nodeType": "YulVariableDeclaration",
-                  "src": "16618:29:8",
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                   "value": {
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                       {
                         "name": "value1",
                         "nodeType": "YulIdentifier",
-                        "src": "16640:6:8"
+                        "src": "16918:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mload",
                       "nodeType": "YulIdentifier",
-                      "src": "16634:5:8"
+                      "src": "16912:5:8"
                     },
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                       "nodeType": "YulTypedName",
-                      "src": "16622:8:8",
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@@ -13081,103 +14542,103 @@
                       {
                         "name": "pos",
                         "nodeType": "YulIdentifier",
-                        "src": "16663:3:8"
+                        "src": "16941:3:8"
                       },
                       {
                         "name": "length_1",
                         "nodeType": "YulIdentifier",
-                        "src": "16668:8:8"
+                        "src": "16946:8:8"
                       }
                     ],
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                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "16656:6:8"
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+                  "src": "16934:21:8"
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                       {
                         "name": "pos",
                         "nodeType": "YulIdentifier",
-                        "src": "16699:3:8"
+                        "src": "16977:3:8"
                       },
                       {
                         "name": "_1",
                         "nodeType": "YulIdentifier",
-                        "src": "16704:2:8"
+                        "src": "16982:2:8"
                       }
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                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
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+                      "src": "16973:3:8"
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                       "nodeType": "YulIdentifier",
-                      "src": "16686:5:8"
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                     }
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                         "name": "value1",
                         "nodeType": "YulIdentifier",
-                        "src": "16736:6:8"
+                        "src": "17014:6:8"
                       },
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                         "name": "_1",
                         "nodeType": "YulIdentifier",
-                        "src": "16744:2:8"
+                        "src": "17022:2:8"
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                       "name": "add",
                       "nodeType": "YulIdentifier",
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+                      "src": "17010:3:8"
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                       "nodeType": "YulTypedName",
-                      "src": "16720:8:8",
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                     "nodeType": "YulIdentifier",
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                     {
                       "name": "i_1",
                       "nodeType": "YulTypedName",
-                      "src": "16760:3:8",
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@@ -13185,7 +14646,7 @@
                 {
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-                    "src": "16837:158:8",
+                    "src": "17115:158:8",
                     "statements": [
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                         "expression": {
@@ -13193,7 +14654,7 @@
                             {
                               "name": "pos_1",
                               "nodeType": "YulIdentifier",
-                              "src": "16858:5:8"
+                              "src": "17136:5:8"
                             },
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@@ -13202,16 +14663,16 @@
                                     {
                                       "name": "srcPtr_1",
                                       "nodeType": "YulIdentifier",
-                                      "src": "16875:8:8"
+                                      "src": "17153:8:8"
                                     }
                                   ],
                                   "functionName": {
                                     "name": "mload",
                                     "nodeType": "YulIdentifier",
-                                    "src": "16869:5:8"
+                                    "src": "17147:5:8"
                                   },
                                   "nodeType": "YulFunctionCall",
-                                  "src": "16869:15:8"
+                                  "src": "17147:15:8"
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@@ -13220,14 +14681,14 @@
                                         {
                                           "kind": "number",
                                           "nodeType": "YulLiteral",
-                                          "src": "16894:3:8",
+                                          "src": "17172:3:8",
                                           "type": "",
                                           "value": "160"
                                         },
                                         {
                                           "kind": "number",
                                           "nodeType": "YulLiteral",
-                                          "src": "16899:1:8",
+                                          "src": "17177:1:8",
                                           "type": "",
                                           "value": "1"
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@@ -13235,15 +14696,15 @@
                                       "functionName": {
                                         "name": "shl",
                                         "nodeType": "YulIdentifier",
-                                        "src": "16890:3:8"
+                                        "src": "17168:3:8"
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                                       "nodeType": "YulFunctionCall",
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+                                      "src": "17168:11:8"
                                     },
                                     {
                                       "kind": "number",
                                       "nodeType": "YulLiteral",
-                                      "src": "16903:1:8",
+                                      "src": "17181:1:8",
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                                       "value": "1"
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@@ -13251,93 +14712,93 @@
                                   "functionName": {
                                     "name": "sub",
                                     "nodeType": "YulIdentifier",
-                                    "src": "16886:3:8"
+                                    "src": "17164:3:8"
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                                   "nodeType": "YulFunctionCall",
-                                  "src": "16886:19:8"
+                                  "src": "17164:19:8"
                                 }
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                               "functionName": {
                                 "name": "and",
                                 "nodeType": "YulIdentifier",
-                                "src": "16865:3:8"
+                                "src": "17143:3:8"
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                               "nodeType": "YulFunctionCall",
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+                              "src": "17143:41:8"
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                           "functionName": {
                             "name": "mstore",
                             "nodeType": "YulIdentifier",
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+                            "src": "17129:6:8"
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+                          "src": "17129:56:8"
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+                        "src": "17129:56:8"
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                               "nodeType": "YulIdentifier",
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+                              "src": "17211:5:8"
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                               "nodeType": "YulIdentifier",
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                             "nodeType": "YulIdentifier",
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+                            "src": "17207:3:8"
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                             "nodeType": "YulIdentifier",
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+                            "src": "17198:5:8"
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                               "nodeType": "YulIdentifier",
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                               "nodeType": "YulIdentifier",
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+                              "src": "17260:2:8"
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                             "nodeType": "YulIdentifier",
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+                            "src": "17246:3:8"
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                             "nodeType": "YulIdentifier",
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+                            "src": "17234:8:8"
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@@ -13348,41 +14809,41 @@
                       {
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                         "nodeType": "YulIdentifier",
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+                        "src": "17069:3:8"
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                         "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
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                         "value": {
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                               "nodeType": "YulIdentifier",
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+                              "src": "17097:3:8"
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                               "nodeType": "YulLiteral",
-                              "src": "16824:1:8",
+                              "src": "17102:1:8",
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@@ -13390,16 +14851,16 @@
                           "functionName": {
                             "name": "add",
                             "nodeType": "YulIdentifier",
-                            "src": "16815:3:8"
+                            "src": "17093:3:8"
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                           "nodeType": "YulFunctionCall",
-                          "src": "16815:11:8"
+                          "src": "17093:11:8"
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                         "variableNames": [
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                             "nodeType": "YulIdentifier",
-                            "src": "16808:3:8"
+                            "src": "17086:3:8"
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@@ -13407,10 +14868,10 @@
                   },
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+                    "src": "17062:3:8",
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+                  "src": "17058:215:8"
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@@ -13420,12 +14881,12 @@
                           {
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                             "nodeType": "YulIdentifier",
-                            "src": "17015:9:8"
+                            "src": "17293:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "17026:2:8",
+                            "src": "17304:2:8",
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                             "value": "64"
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@@ -13433,103 +14894,103 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
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+                          "src": "17289:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "17011:18:8"
+                        "src": "17289:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "pos_1",
                             "nodeType": "YulIdentifier",
-                            "src": "17035:5:8"
+                            "src": "17313:5:8"
                           },
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "17042:9:8"
+                            "src": "17320:9:8"
                           }
                         ],
                         "functionName": {
                           "name": "sub",
                           "nodeType": "YulIdentifier",
-                          "src": "17031:3:8"
+                          "src": "17309:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "17031:21:8"
+                        "src": "17309:21:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "17004:6:8"
+                      "src": "17282:6:8"
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+                    "src": "17282:49:8"
                   },
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+                  "src": "17282:49:8"
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                 {
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+                  "src": "17340:51:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "value2",
                         "nodeType": "YulIdentifier",
-                        "src": "17099:6:8"
+                        "src": "17377:6:8"
                       },
                       {
                         "name": "pos_1",
                         "nodeType": "YulIdentifier",
-                        "src": "17107:5:8"
+                        "src": "17385:5:8"
                       }
                     ],
                     "functionName": {
                       "name": "abi_encode_array_bytes32_dyn",
                       "nodeType": "YulIdentifier",
-                      "src": "17070:28:8"
+                      "src": "17348:28:8"
                     },
                     "nodeType": "YulFunctionCall",
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+                    "src": "17348:43:8"
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                   "variableNames": [
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                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "17062:4:8"
+                      "src": "17340:4:8"
                     }
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+            "name": "abi_encode_tuple_t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__to_t_array$_t_uint8_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__fromStack_reversed",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "16001:9:8",
+                "src": "16279:9:8",
                 "type": ""
               },
               {
                 "name": "value2",
                 "nodeType": "YulTypedName",
-                "src": "16012:6:8",
+                "src": "16290:6:8",
                 "type": ""
               },
               {
                 "name": "value1",
                 "nodeType": "YulTypedName",
-                "src": "16020:6:8",
+                "src": "16298:6:8",
                 "type": ""
               },
               {
                 "name": "value0",
                 "nodeType": "YulTypedName",
-                "src": "16028:6:8",
+                "src": "16306:6:8",
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               }
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@@ -13537,31 +14998,31 @@
               {
                 "name": "tail",
                 "nodeType": "YulTypedName",
-                "src": "16039:4:8",
+                "src": "16317:4:8",
                 "type": ""
               }
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-            "src": "15729:1390:8"
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           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "17219:92:8",
+              "src": "17497:92:8",
               "statements": [
                 {
                   "nodeType": "YulAssignment",
-                  "src": "17229:26:8",
+                  "src": "17507:26:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "17241:9:8"
+                        "src": "17519:9:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "17252:2:8",
+                        "src": "17530:2:8",
                         "type": "",
                         "value": "32"
                       }
@@ -13569,16 +15030,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "17237:3:8"
+                      "src": "17515:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "17237:18:8"
+                    "src": "17515:18:8"
                   },
                   "variableNames": [
                     {
                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "17229:4:8"
+                      "src": "17507:4:8"
                     }
                   ]
                 },
@@ -13588,7 +15049,7 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "17271:9:8"
+                        "src": "17549:9:8"
                       },
                       {
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@@ -13597,37 +15058,37 @@
                               {
                                 "name": "value0",
                                 "nodeType": "YulIdentifier",
-                                "src": "17296:6:8"
+                                "src": "17574:6:8"
                               }
                             ],
                             "functionName": {
                               "name": "iszero",
                               "nodeType": "YulIdentifier",
-                              "src": "17289:6:8"
+                              "src": "17567:6:8"
                             },
                             "nodeType": "YulFunctionCall",
-                            "src": "17289:14:8"
+                            "src": "17567:14:8"
                           }
                         ],
                         "functionName": {
                           "name": "iszero",
                           "nodeType": "YulIdentifier",
-                          "src": "17282:6:8"
+                          "src": "17560:6:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "17282:22:8"
+                        "src": "17560:22:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "17264:6:8"
+                      "src": "17542:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "17264:41:8"
+                    "src": "17542:41:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "17264:41:8"
+                  "src": "17542:41:8"
                 }
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             },
@@ -13637,13 +15098,13 @@
               {
                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "17188:9:8",
+                "src": "17466:9:8",
                 "type": ""
               },
               {
                 "name": "value0",
                 "nodeType": "YulTypedName",
-                "src": "17199:6:8",
+                "src": "17477:6:8",
                 "type": ""
               }
             ],
@@ -13651,31 +15112,31 @@
               {
                 "name": "tail",
                 "nodeType": "YulTypedName",
-                "src": "17210:4:8",
+                "src": "17488:4:8",
                 "type": ""
               }
             ],
-            "src": "17124:187:8"
+            "src": "17402:187:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "17493:239:8",
+              "src": "17771:239:8",
               "statements": [
                 {
                   "nodeType": "YulAssignment",
-                  "src": "17503:27:8",
+                  "src": "17781:27:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "17515:9:8"
+                        "src": "17793:9:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "17526:3:8",
+                        "src": "17804:3:8",
                         "type": "",
                         "value": "128"
                       }
@@ -13683,16 +15144,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "17511:3:8"
+                      "src": "17789:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "17511:19:8"
+                    "src": "17789:19:8"
                   },
                   "variableNames": [
                     {
                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "17503:4:8"
+                      "src": "17781:4:8"
                     }
                   ]
                 },
@@ -13702,24 +15163,24 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "17546:9:8"
+                        "src": "17824:9:8"
                       },
                       {
                         "name": "value0",
                         "nodeType": "YulIdentifier",
-                        "src": "17557:6:8"
+                        "src": "17835:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "17539:6:8"
+                      "src": "17817:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "17539:25:8"
+                    "src": "17817:25:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "17539:25:8"
+                  "src": "17817:25:8"
                 },
                 {
                   "expression": {
@@ -13729,12 +15190,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "17584:9:8"
+                            "src": "17862:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "17595:2:8",
+                            "src": "17873:2:8",
                             "type": "",
                             "value": "32"
                           }
@@ -13742,27 +15203,27 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "17580:3:8"
+                          "src": "17858:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "17580:18:8"
+                        "src": "17858:18:8"
                       },
                       {
                         "name": "value1",
                         "nodeType": "YulIdentifier",
-                        "src": "17600:6:8"
+                        "src": "17878:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "17573:6:8"
+                      "src": "17851:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "17573:34:8"
+                    "src": "17851:34:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "17573:34:8"
+                  "src": "17851:34:8"
                 },
                 {
                   "expression": {
@@ -13772,12 +15233,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "17627:9:8"
+                            "src": "17905:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "17638:2:8",
+                            "src": "17916:2:8",
                             "type": "",
                             "value": "64"
                           }
@@ -13785,22 +15246,22 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "17623:3:8"
+                          "src": "17901:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "17623:18:8"
+                        "src": "17901:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value2",
                             "nodeType": "YulIdentifier",
-                            "src": "17647:6:8"
+                            "src": "17925:6:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "17655:10:8",
+                            "src": "17933:10:8",
                             "type": "",
                             "value": "0xffffffff"
                           }
@@ -13808,22 +15269,22 @@
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "17643:3:8"
+                          "src": "17921:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "17643:23:8"
+                        "src": "17921:23:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "17616:6:8"
+                      "src": "17894:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "17616:51:8"
+                    "src": "17894:51:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "17616:51:8"
+                  "src": "17894:51:8"
                 },
                 {
                   "expression": {
@@ -13833,12 +15294,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "17687:9:8"
+                            "src": "17965:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "17698:2:8",
+                            "src": "17976:2:8",
                             "type": "",
                             "value": "96"
                           }
@@ -13846,10 +15307,10 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "17683:3:8"
+                          "src": "17961:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "17683:18:8"
+                        "src": "17961:18:8"
                       },
                       {
                         "arguments": [
@@ -13858,37 +15319,37 @@
                               {
                                 "name": "value3",
                                 "nodeType": "YulIdentifier",
-                                "src": "17717:6:8"
+                                "src": "17995:6:8"
                               }
                             ],
                             "functionName": {
                               "name": "iszero",
                               "nodeType": "YulIdentifier",
-                              "src": "17710:6:8"
+                              "src": "17988:6:8"
                             },
                             "nodeType": "YulFunctionCall",
-                            "src": "17710:14:8"
+                            "src": "17988:14:8"
                           }
                         ],
                         "functionName": {
                           "name": "iszero",
                           "nodeType": "YulIdentifier",
-                          "src": "17703:6:8"
+                          "src": "17981:6:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "17703:22:8"
+                        "src": "17981:22:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "17676:6:8"
+                      "src": "17954:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "17676:50:8"
+                    "src": "17954:50:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "17676:50:8"
+                  "src": "17954:50:8"
                 }
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@@ -13898,31 +15359,31 @@
               {
                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "17438:9:8",
+                "src": "17716:9:8",
                 "type": ""
               },
               {
                 "name": "value3",
                 "nodeType": "YulTypedName",
-                "src": "17449:6:8",
+                "src": "17727:6:8",
                 "type": ""
               },
               {
                 "name": "value2",
                 "nodeType": "YulTypedName",
-                "src": "17457:6:8",
+                "src": "17735:6:8",
                 "type": ""
               },
               {
                 "name": "value1",
                 "nodeType": "YulTypedName",
-                "src": "17465:6:8",
+                "src": "17743:6:8",
                 "type": ""
               },
               {
                 "name": "value0",
                 "nodeType": "YulTypedName",
-                "src": "17473:6:8",
+                "src": "17751:6:8",
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@@ -13930,31 +15391,31 @@
               {
                 "name": "tail",
                 "nodeType": "YulTypedName",
-                "src": "17484:4:8",
+                "src": "17762:4:8",
                 "type": ""
               }
             ],
-            "src": "17316:416:8"
+            "src": "17594:416:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "18018:488:8",
+              "src": "18296:488:8",
               "statements": [
                 {
                   "nodeType": "YulAssignment",
-                  "src": "18028:27:8",
+                  "src": "18306:27:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "18040:9:8"
+                        "src": "18318:9:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "18051:3:8",
+                        "src": "18329:3:8",
                         "type": "",
                         "value": "256"
                       }
@@ -13962,16 +15423,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "18036:3:8"
+                      "src": "18314:3:8"
                     },
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                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "18028:4:8"
+                      "src": "18306:4:8"
                     }
                   ]
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@@ -13981,24 +15442,24 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "18071:9:8"
+                        "src": "18349:9:8"
                       },
                       {
                         "name": "value0",
                         "nodeType": "YulIdentifier",
-                        "src": "18082:6:8"
+                        "src": "18360:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "18064:6:8"
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                     "nodeType": "YulFunctionCall",
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                   },
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-                  "src": "18064:25:8"
+                  "src": "18342:25:8"
                 },
                 {
                   "expression": {
@@ -14008,12 +15469,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "18109:9:8"
+                            "src": "18387:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "18120:2:8",
+                            "src": "18398:2:8",
                             "type": "",
                             "value": "32"
                           }
@@ -14021,22 +15482,22 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "18105:3:8"
+                          "src": "18383:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18105:18:8"
+                        "src": "18383:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value1",
                             "nodeType": "YulIdentifier",
-                            "src": "18129:6:8"
+                            "src": "18407:6:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "18137:4:8",
+                            "src": "18415:4:8",
                             "type": "",
                             "value": "0xff"
                           }
@@ -14044,22 +15505,22 @@
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "18125:3:8"
+                          "src": "18403:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18125:17:8"
+                        "src": "18403:17:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "18098:6:8"
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+                  "src": "18376:45:8"
                 },
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                   "expression": {
@@ -14069,12 +15530,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "18163:9:8"
+                            "src": "18441:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "18174:2:8",
+                            "src": "18452:2:8",
                             "type": "",
                             "value": "64"
                           }
@@ -14082,22 +15543,22 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "18159:3:8"
+                          "src": "18437:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18159:18:8"
+                        "src": "18437:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value2",
                             "nodeType": "YulIdentifier",
-                            "src": "18183:6:8"
+                            "src": "18461:6:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "18191:4:8",
+                            "src": "18469:4:8",
                             "type": "",
                             "value": "0xff"
                           }
@@ -14105,30 +15566,30 @@
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "18179:3:8"
+                          "src": "18457:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18179:17:8"
+                        "src": "18457:17:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "18152:6:8"
+                      "src": "18430:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "18152:45:8"
+                    "src": "18430:45:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "18152:45:8"
+                  "src": "18430:45:8"
                 },
                 {
                   "nodeType": "YulVariableDeclaration",
-                  "src": "18206:20:8",
+                  "src": "18484:20:8",
                   "value": {
                     "kind": "number",
                     "nodeType": "YulLiteral",
-                    "src": "18216:10:8",
+                    "src": "18494:10:8",
                     "type": "",
                     "value": "0xffffffff"
                   },
@@ -14136,7 +15597,7 @@
                     {
                       "name": "_1",
                       "nodeType": "YulTypedName",
-                      "src": "18210:2:8",
+                      "src": "18488:2:8",
                       "type": ""
                     }
                   ]
@@ -14149,12 +15610,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "18246:9:8"
+                            "src": "18524:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "18257:2:8",
+                            "src": "18535:2:8",
                             "type": "",
                             "value": "96"
                           }
@@ -14162,43 +15623,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "18242:3:8"
+                          "src": "18520:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18242:18:8"
+                        "src": "18520:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value3",
                             "nodeType": "YulIdentifier",
-                            "src": "18266:6:8"
+                            "src": "18544:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "18274:2:8"
+                            "src": "18552:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "18262:3:8"
+                          "src": "18540:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18262:15:8"
+                        "src": "18540:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "18235:6:8"
+                      "src": "18513:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "18235:43:8"
+                    "src": "18513:43:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "18235:43:8"
+                  "src": "18513:43:8"
                 },
                 {
                   "expression": {
@@ -14208,12 +15669,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "18298:9:8"
+                            "src": "18576:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "18309:3:8",
+                            "src": "18587:3:8",
                             "type": "",
                             "value": "128"
                           }
@@ -14221,43 +15682,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "18294:3:8"
+                          "src": "18572:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18294:19:8"
+                        "src": "18572:19:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value4",
                             "nodeType": "YulIdentifier",
-                            "src": "18319:6:8"
+                            "src": "18597:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "18327:2:8"
+                            "src": "18605:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "18315:3:8"
+                          "src": "18593:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18315:15:8"
+                        "src": "18593:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "18287:6:8"
+                      "src": "18565:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "18287:44:8"
+                    "src": "18565:44:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "18287:44:8"
+                  "src": "18565:44:8"
                 },
                 {
                   "expression": {
@@ -14267,12 +15728,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "18351:9:8"
+                            "src": "18629:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "18362:3:8",
+                            "src": "18640:3:8",
                             "type": "",
                             "value": "160"
                           }
@@ -14280,22 +15741,22 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "18347:3:8"
+                          "src": "18625:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18347:19:8"
+                        "src": "18625:19:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value5",
                             "nodeType": "YulIdentifier",
-                            "src": "18372:6:8"
+                            "src": "18650:6:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "18380:4:8",
+                            "src": "18658:4:8",
                             "type": "",
                             "value": "0xff"
                           }
@@ -14303,22 +15764,22 @@
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "18368:3:8"
+                          "src": "18646:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18368:17:8"
+                        "src": "18646:17:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "18340:6:8"
+                      "src": "18618:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "18340:46:8"
+                    "src": "18618:46:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "18340:46:8"
+                  "src": "18618:46:8"
                 },
                 {
                   "expression": {
@@ -14328,12 +15789,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "18406:9:8"
+                            "src": "18684:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "18417:3:8",
+                            "src": "18695:3:8",
                             "type": "",
                             "value": "192"
                           }
@@ -14341,17 +15802,17 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "18402:3:8"
+                          "src": "18680:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18402:19:8"
+                        "src": "18680:19:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value6",
                             "nodeType": "YulIdentifier",
-                            "src": "18427:6:8"
+                            "src": "18705:6:8"
                           },
                           {
                             "arguments": [
@@ -14360,14 +15821,14 @@
                                   {
                                     "kind": "number",
                                     "nodeType": "YulLiteral",
-                                    "src": "18443:3:8",
+                                    "src": "18721:3:8",
                                     "type": "",
                                     "value": "160"
                                   },
                                   {
                                     "kind": "number",
                                     "nodeType": "YulLiteral",
-                                    "src": "18448:1:8",
+                                    "src": "18726:1:8",
                                     "type": "",
                                     "value": "1"
                                   }
@@ -14375,15 +15836,15 @@
                                 "functionName": {
                                   "name": "shl",
                                   "nodeType": "YulIdentifier",
-                                  "src": "18439:3:8"
+                                  "src": "18717:3:8"
                                 },
                                 "nodeType": "YulFunctionCall",
-                                "src": "18439:11:8"
+                                "src": "18717:11:8"
                               },
                               {
                                 "kind": "number",
                                 "nodeType": "YulLiteral",
-                                "src": "18452:1:8",
+                                "src": "18730:1:8",
                                 "type": "",
                                 "value": "1"
                               }
@@ -14391,31 +15852,31 @@
                             "functionName": {
                               "name": "sub",
                               "nodeType": "YulIdentifier",
-                              "src": "18435:3:8"
+                              "src": "18713:3:8"
                             },
                             "nodeType": "YulFunctionCall",
-                            "src": "18435:19:8"
+                            "src": "18713:19:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "18423:3:8"
+                          "src": "18701:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18423:32:8"
+                        "src": "18701:32:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "18395:6:8"
+                      "src": "18673:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "18395:61:8"
+                    "src": "18673:61:8"
                   },
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-                  "src": "18395:61:8"
+                  "src": "18673:61:8"
                 },
                 {
                   "expression": {
@@ -14425,12 +15886,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "18476:9:8"
+                            "src": "18754:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "18487:3:8",
+                            "src": "18765:3:8",
                             "type": "",
                             "value": "224"
                           }
@@ -14438,27 +15899,27 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "18472:3:8"
+                          "src": "18750:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18472:19:8"
+                        "src": "18750:19:8"
                       },
                       {
                         "name": "value7",
                         "nodeType": "YulIdentifier",
-                        "src": "18493:6:8"
+                        "src": "18771:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "18465:6:8"
+                      "src": "18743:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "18465:35:8"
+                    "src": "18743:35:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "18465:35:8"
+                  "src": "18743:35:8"
                 }
               ]
             },
@@ -14468,55 +15929,55 @@
               {
                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "17931:9:8",
+                "src": "18209:9:8",
                 "type": ""
               },
               {
                 "name": "value7",
                 "nodeType": "YulTypedName",
-                "src": "17942:6:8",
+                "src": "18220:6:8",
                 "type": ""
               },
               {
                 "name": "value6",
                 "nodeType": "YulTypedName",
-                "src": "17950:6:8",
+                "src": "18228:6:8",
                 "type": ""
               },
               {
                 "name": "value5",
                 "nodeType": "YulTypedName",
-                "src": "17958:6:8",
+                "src": "18236:6:8",
                 "type": ""
               },
               {
                 "name": "value4",
                 "nodeType": "YulTypedName",
-                "src": "17966:6:8",
+                "src": "18244:6:8",
                 "type": ""
               },
               {
                 "name": "value3",
                 "nodeType": "YulTypedName",
-                "src": "17974:6:8",
+                "src": "18252:6:8",
                 "type": ""
               },
               {
                 "name": "value2",
                 "nodeType": "YulTypedName",
-                "src": "17982:6:8",
+                "src": "18260:6:8",
                 "type": ""
               },
               {
                 "name": "value1",
                 "nodeType": "YulTypedName",
-                "src": "17990:6:8",
+                "src": "18268:6:8",
                 "type": ""
               },
               {
                 "name": "value0",
                 "nodeType": "YulTypedName",
-                "src": "17998:6:8",
+                "src": "18276:6:8",
                 "type": ""
               }
             ],
@@ -14524,31 +15985,31 @@
               {
                 "name": "tail",
                 "nodeType": "YulTypedName",
-                "src": "18009:4:8",
+                "src": "18287:4:8",
                 "type": ""
               }
             ],
-            "src": "17737:769:8"
+            "src": "18015:769:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "18610:103:8",
+              "src": "18888:103:8",
               "statements": [
                 {
                   "nodeType": "YulAssignment",
-                  "src": "18620:26:8",
+                  "src": "18898:26:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "18632:9:8"
+                        "src": "18910:9:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "18643:2:8",
+                        "src": "18921:2:8",
                         "type": "",
                         "value": "32"
                       }
@@ -14556,16 +16017,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "18628:3:8"
+                      "src": "18906:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "18628:18:8"
+                    "src": "18906:18:8"
                   },
                   "variableNames": [
                     {
                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "18620:4:8"
+                      "src": "18898:4:8"
                     }
                   ]
                 },
@@ -14575,28 +16036,28 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "18662:9:8"
+                        "src": "18940:9:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value0",
                             "nodeType": "YulIdentifier",
-                            "src": "18677:6:8"
+                            "src": "18955:6:8"
                           },
                           {
                             "arguments": [
                               {
                                 "kind": "number",
                                 "nodeType": "YulLiteral",
-                                "src": "18689:3:8",
+                                "src": "18967:3:8",
                                 "type": "",
                                 "value": "224"
                               },
                               {
                                 "kind": "number",
                                 "nodeType": "YulLiteral",
-                                "src": "18694:10:8",
+                                "src": "18972:10:8",
                                 "type": "",
                                 "value": "0xffffffff"
                               }
@@ -14604,31 +16065,31 @@
                             "functionName": {
                               "name": "shl",
                               "nodeType": "YulIdentifier",
-                              "src": "18685:3:8"
+                              "src": "18963:3:8"
                             },
                             "nodeType": "YulFunctionCall",
-                            "src": "18685:20:8"
+                            "src": "18963:20:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "18673:3:8"
+                          "src": "18951:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18673:33:8"
+                        "src": "18951:33:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "18655:6:8"
+                      "src": "18933:6:8"
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-                    "src": "18655:52:8"
+                    "src": "18933:52:8"
                   },
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-                  "src": "18655:52:8"
+                  "src": "18933:52:8"
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@@ -14638,13 +16099,13 @@
               {
                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "18579:9:8",
+                "src": "18857:9:8",
                 "type": ""
               },
               {
                 "name": "value0",
                 "nodeType": "YulTypedName",
-                "src": "18590:6:8",
+                "src": "18868:6:8",
                 "type": ""
               }
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@@ -14652,31 +16113,31 @@
               {
                 "name": "tail",
                 "nodeType": "YulTypedName",
-                "src": "18601:4:8",
+                "src": "18879:4:8",
                 "type": ""
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+            "src": "18789:202:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "18887:207:8",
+              "src": "19165:207:8",
               "statements": [
                 {
                   "nodeType": "YulAssignment",
-                  "src": "18897:26:8",
+                  "src": "19175:26:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "18909:9:8"
+                        "src": "19187:9:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "18920:2:8",
+                        "src": "19198:2:8",
                         "type": "",
                         "value": "96"
                       }
@@ -14684,16 +16145,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "18905:3:8"
+                      "src": "19183:3:8"
                     },
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-                    "src": "18905:18:8"
+                    "src": "19183:18:8"
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                   "variableNames": [
                     {
                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "18897:4:8"
+                      "src": "19175:4:8"
                     }
                   ]
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@@ -14703,24 +16164,24 @@
                       {
                         "name": "value0",
                         "nodeType": "YulIdentifier",
-                        "src": "18958:6:8"
+                        "src": "19236:6:8"
                       },
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "18966:9:8"
+                        "src": "19244:9:8"
                       }
                     ],
                     "functionName": {
                       "name": "abi_encode_enum_TokenType",
                       "nodeType": "YulIdentifier",
-                      "src": "18932:25:8"
+                      "src": "19210:25:8"
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+                    "src": "19210:44:8"
                   },
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-                  "src": "18932:44:8"
+                  "src": "19210:44:8"
                 },
                 {
                   "expression": {
@@ -14730,12 +16191,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "18996:9:8"
+                            "src": "19274:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "19007:2:8",
+                            "src": "19285:2:8",
                             "type": "",
                             "value": "32"
                           }
@@ -14743,17 +16204,17 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "18992:3:8"
+                          "src": "19270:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "18992:18:8"
+                        "src": "19270:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value1",
                             "nodeType": "YulIdentifier",
-                            "src": "19016:6:8"
+                            "src": "19294:6:8"
                           },
                           {
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@@ -14762,14 +16223,14 @@
                                   {
                                     "kind": "number",
                                     "nodeType": "YulLiteral",
-                                    "src": "19032:3:8",
+                                    "src": "19310:3:8",
                                     "type": "",
                                     "value": "160"
                                   },
                                   {
                                     "kind": "number",
                                     "nodeType": "YulLiteral",
-                                    "src": "19037:1:8",
+                                    "src": "19315:1:8",
                                     "type": "",
                                     "value": "1"
                                   }
@@ -14777,15 +16238,15 @@
                                 "functionName": {
                                   "name": "shl",
                                   "nodeType": "YulIdentifier",
-                                  "src": "19028:3:8"
+                                  "src": "19306:3:8"
                                 },
                                 "nodeType": "YulFunctionCall",
-                                "src": "19028:11:8"
+                                "src": "19306:11:8"
                               },
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@@ -14793,31 +16254,31 @@
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                               "nodeType": "YulIdentifier",
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@@ -14827,12 +16288,12 @@
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@@ -14840,55 +16301,55 @@
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@@ -14896,31 +16357,31 @@
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@@ -14947,28 +16408,28 @@
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@@ -14991,15 +16452,15 @@
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@@ -15029,12 +16490,12 @@
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@@ -15042,43 +16503,43 @@
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@@ -15101,27 +16562,27 @@
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@@ -15144,43 +16605,43 @@
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@@ -15190,12 +16651,12 @@
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@@ -15203,67 +16664,67 @@
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@@ -15288,28 +16749,28 @@
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@@ -15332,15 +16793,15 @@
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@@ -15383,43 +16844,43 @@
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@@ -15442,27 +16903,27 @@
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                         "nodeType": "YulFunctionCall",
-                        "src": "20087:18:8"
+                        "src": "20365:18:8"
                       },
                       {
                         "name": "value2",
                         "nodeType": "YulIdentifier",
-                        "src": "20107:6:8"
+                        "src": "20385:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "20080:6:8"
+                      "src": "20358:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "20080:34:8"
+                    "src": "20358:34:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "20080:34:8"
+                  "src": "20358:34:8"
                 },
                 {
                   "expression": {
@@ -15472,12 +16933,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "20134:9:8"
+                            "src": "20412:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "20145:2:8",
+                            "src": "20423:2:8",
                             "type": "",
                             "value": "96"
                           }
@@ -15485,43 +16946,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "20130:3:8"
+                          "src": "20408:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20130:18:8"
+                        "src": "20408:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value3",
                             "nodeType": "YulIdentifier",
-                            "src": "20154:6:8"
+                            "src": "20432:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "20162:2:8"
+                            "src": "20440:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "20150:3:8"
+                          "src": "20428:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20150:15:8"
+                        "src": "20428:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "20123:6:8"
+                      "src": "20401:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "20123:43:8"
+                    "src": "20401:43:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "20123:43:8"
+                  "src": "20401:43:8"
                 },
                 {
                   "expression": {
@@ -15531,12 +16992,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "20186:9:8"
+                            "src": "20464:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "20197:3:8",
+                            "src": "20475:3:8",
                             "type": "",
                             "value": "128"
                           }
@@ -15544,27 +17005,27 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "20182:3:8"
+                          "src": "20460:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20182:19:8"
+                        "src": "20460:19:8"
                       },
                       {
                         "name": "value4",
                         "nodeType": "YulIdentifier",
-                        "src": "20203:6:8"
+                        "src": "20481:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "20175:6:8"
+                      "src": "20453:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "20175:35:8"
+                    "src": "20453:35:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "20175:35:8"
+                  "src": "20453:35:8"
                 },
                 {
                   "expression": {
@@ -15574,12 +17035,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "20230:9:8"
+                            "src": "20508:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "20241:3:8",
+                            "src": "20519:3:8",
                             "type": "",
                             "value": "160"
                           }
@@ -15587,15 +17048,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "20226:3:8"
+                          "src": "20504:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20226:19:8"
+                        "src": "20504:19:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "20247:3:8",
+                        "src": "20525:3:8",
                         "type": "",
                         "value": "192"
                       }
@@ -15603,35 +17064,35 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "20219:6:8"
+                      "src": "20497:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "20219:32:8"
+                    "src": "20497:32:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "20219:32:8"
+                  "src": "20497:32:8"
                 },
                 {
                   "nodeType": "YulAssignment",
-                  "src": "20260:53:8",
+                  "src": "20538:53:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "value5",
                         "nodeType": "YulIdentifier",
-                        "src": "20285:6:8"
+                        "src": "20563:6:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "20297:9:8"
+                            "src": "20575:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "20308:3:8",
+                            "src": "20586:3:8",
                             "type": "",
                             "value": "192"
                           }
@@ -15639,73 +17100,73 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "20293:3:8"
+                          "src": "20571:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20293:19:8"
+                        "src": "20571:19:8"
                       }
                     ],
                     "functionName": {
                       "name": "abi_encode_bytes",
                       "nodeType": "YulIdentifier",
-                      "src": "20268:16:8"
+                      "src": "20546:16:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "20268:45:8"
+                    "src": "20546:45:8"
                   },
                   "variableNames": [
                     {
                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "20260:4:8"
+                      "src": "20538:4:8"
                     }
                   ]
                 }
               ]
             },
-            "name": "abi_encode_tuple_t_enum$_TokenType_$2176_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed",
+            "name": "abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "19856:9:8",
+                "src": "20134:9:8",
                 "type": ""
               },
               {
                 "name": "value5",
                 "nodeType": "YulTypedName",
-                "src": "19867:6:8",
+                "src": "20145:6:8",
                 "type": ""
               },
               {
                 "name": "value4",
                 "nodeType": "YulTypedName",
-                "src": "19875:6:8",
+                "src": "20153:6:8",
                 "type": ""
               },
               {
                 "name": "value3",
                 "nodeType": "YulTypedName",
-                "src": "19883:6:8",
+                "src": "20161:6:8",
                 "type": ""
               },
               {
                 "name": "value2",
                 "nodeType": "YulTypedName",
-                "src": "19891:6:8",
+                "src": "20169:6:8",
                 "type": ""
               },
               {
                 "name": "value1",
                 "nodeType": "YulTypedName",
-                "src": "19899:6:8",
+                "src": "20177:6:8",
                 "type": ""
               },
               {
                 "name": "value0",
                 "nodeType": "YulTypedName",
-                "src": "19907:6:8",
+                "src": "20185:6:8",
                 "type": ""
               }
             ],
@@ -15713,16 +17174,16 @@
               {
                 "name": "tail",
                 "nodeType": "YulTypedName",
-                "src": "19918:4:8",
+                "src": "20196:4:8",
                 "type": ""
               }
             ],
-            "src": "19654:665:8"
+            "src": "19932:665:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "20650:408:8",
+              "src": "20928:408:8",
               "statements": [
                 {
                   "expression": {
@@ -15730,28 +17191,28 @@
                       {
                         "name": "value0",
                         "nodeType": "YulIdentifier",
-                        "src": "20686:6:8"
+                        "src": "20964:6:8"
                       },
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "20694:9:8"
+                        "src": "20972:9:8"
                       }
                     ],
                     "functionName": {
                       "name": "abi_encode_enum_TokenType",
                       "nodeType": "YulIdentifier",
-                      "src": "20660:25:8"
+                      "src": "20938:25:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "20660:44:8"
+                    "src": "20938:44:8"
                   },
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-                  "src": "20660:44:8"
+                  "src": "20938:44:8"
                 },
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                   "nodeType": "YulVariableDeclaration",
-                  "src": "20713:29:8",
+                  "src": "20991:29:8",
                   "value": {
                     "arguments": [
                       {
@@ -15759,14 +17220,14 @@
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "20731:3:8",
+                            "src": "21009:3:8",
                             "type": "",
                             "value": "160"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "20736:1:8",
+                            "src": "21014:1:8",
                             "type": "",
                             "value": "1"
                           }
@@ -15774,15 +17235,15 @@
                         "functionName": {
                           "name": "shl",
                           "nodeType": "YulIdentifier",
-                          "src": "20727:3:8"
+                          "src": "21005:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20727:11:8"
+                        "src": "21005:11:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "20740:1:8",
+                        "src": "21018:1:8",
                         "type": "",
                         "value": "1"
                       }
@@ -15790,16 +17251,16 @@
                     "functionName": {
                       "name": "sub",
                       "nodeType": "YulIdentifier",
-                      "src": "20723:3:8"
+                      "src": "21001:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "20723:19:8"
+                    "src": "21001:19:8"
                   },
                   "variables": [
                     {
                       "name": "_1",
                       "nodeType": "YulTypedName",
-                      "src": "20717:2:8",
+                      "src": "20995:2:8",
                       "type": ""
                     }
                   ]
@@ -15812,12 +17273,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "20762:9:8"
+                            "src": "21040:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "20773:2:8",
+                            "src": "21051:2:8",
                             "type": "",
                             "value": "32"
                           }
@@ -15825,43 +17286,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "20758:3:8"
+                          "src": "21036:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20758:18:8"
+                        "src": "21036:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value1",
                             "nodeType": "YulIdentifier",
-                            "src": "20782:6:8"
+                            "src": "21060:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "20790:2:8"
+                            "src": "21068:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "20778:3:8"
+                          "src": "21056:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20778:15:8"
+                        "src": "21056:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "20751:6:8"
+                      "src": "21029:6:8"
                     },
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-                    "src": "20751:43:8"
+                    "src": "21029:43:8"
                   },
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-                  "src": "20751:43:8"
+                  "src": "21029:43:8"
                 },
                 {
                   "expression": {
@@ -15871,12 +17332,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "20814:9:8"
+                            "src": "21092:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "20825:2:8",
+                            "src": "21103:2:8",
                             "type": "",
                             "value": "64"
                           }
@@ -15884,27 +17345,27 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "20810:3:8"
+                          "src": "21088:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20810:18:8"
+                        "src": "21088:18:8"
                       },
                       {
                         "name": "value2",
                         "nodeType": "YulIdentifier",
-                        "src": "20830:6:8"
+                        "src": "21108:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "20803:6:8"
+                      "src": "21081:6:8"
                     },
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+                    "src": "21081:34:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "20803:34:8"
+                  "src": "21081:34:8"
                 },
                 {
                   "expression": {
@@ -15914,12 +17375,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "20857:9:8"
+                            "src": "21135:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "20868:2:8",
+                            "src": "21146:2:8",
                             "type": "",
                             "value": "96"
                           }
@@ -15927,43 +17388,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "20853:3:8"
+                          "src": "21131:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20853:18:8"
+                        "src": "21131:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value3",
                             "nodeType": "YulIdentifier",
-                            "src": "20877:6:8"
+                            "src": "21155:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "20885:2:8"
+                            "src": "21163:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "20873:3:8"
+                          "src": "21151:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20873:15:8"
+                        "src": "21151:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "20846:6:8"
+                      "src": "21124:6:8"
                     },
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+                    "src": "21124:43:8"
                   },
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+                  "src": "21124:43:8"
                 },
                 {
                   "expression": {
@@ -15973,12 +17434,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "20909:9:8"
+                            "src": "21187:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "20920:3:8",
+                            "src": "21198:3:8",
                             "type": "",
                             "value": "128"
                           }
@@ -15986,27 +17447,27 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "20905:3:8"
+                          "src": "21183:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20905:19:8"
+                        "src": "21183:19:8"
                       },
                       {
                         "name": "value4",
                         "nodeType": "YulIdentifier",
-                        "src": "20926:6:8"
+                        "src": "21204:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "20898:6:8"
+                      "src": "21176:6:8"
                     },
                     "nodeType": "YulFunctionCall",
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+                    "src": "21176:35:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "20898:35:8"
+                  "src": "21176:35:8"
                 },
                 {
                   "expression": {
@@ -16016,12 +17477,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "20953:9:8"
+                            "src": "21231:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "20964:3:8",
+                            "src": "21242:3:8",
                             "type": "",
                             "value": "160"
                           }
@@ -16029,15 +17490,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "20949:3:8"
+                          "src": "21227:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20949:19:8"
+                        "src": "21227:19:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "20970:3:8",
+                        "src": "21248:3:8",
                         "type": "",
                         "value": "192"
                       }
@@ -16045,13 +17506,13 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "20942:6:8"
+                      "src": "21220:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "20942:32:8"
+                    "src": "21220:32:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "20942:32:8"
+                  "src": "21220:32:8"
                 },
                 {
                   "expression": {
@@ -16061,12 +17522,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "20994:9:8"
+                            "src": "21272:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "21005:3:8",
+                            "src": "21283:3:8",
                             "type": "",
                             "value": "192"
                           }
@@ -16074,42 +17535,42 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "20990:3:8"
+                          "src": "21268:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "20990:19:8"
+                        "src": "21268:19:8"
                       },
                       {
                         "name": "tail",
                         "nodeType": "YulIdentifier",
-                        "src": "21011:4:8"
+                        "src": "21289:4:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "20983:6:8"
+                      "src": "21261:6:8"
                     },
                     "nodeType": "YulFunctionCall",
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+                    "src": "21261:33:8"
                   },
                   "nodeType": "YulExpressionStatement",
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+                  "src": "21261:33:8"
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                 {
                   "nodeType": "YulAssignment",
-                  "src": "21025:27:8",
+                  "src": "21303:27:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "21037:9:8"
+                        "src": "21315:9:8"
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                         "nodeType": "YulLiteral",
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@@ -16117,58 +17578,58 @@
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                       "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
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+            "name": "abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256_t_address_t_uint256_t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed",
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                 "name": "headStart",
                 "nodeType": "YulTypedName",
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               },
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                 "name": "value4",
                 "nodeType": "YulTypedName",
-                "src": "20598:6:8",
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                 "name": "value3",
                 "nodeType": "YulTypedName",
-                "src": "20606:6:8",
+                "src": "20884:6:8",
                 "type": ""
               },
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                 "name": "value2",
                 "nodeType": "YulTypedName",
-                "src": "20614:6:8",
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                 "name": "value1",
                 "nodeType": "YulTypedName",
-                "src": "20622:6:8",
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                 "nodeType": "YulTypedName",
-                "src": "20630:6:8",
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@@ -16176,16 +17637,16 @@
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                 "nodeType": "YulTypedName",
-                "src": "20641:4:8",
+                "src": "20919:4:8",
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@@ -16193,24 +17654,24 @@
                       {
                         "name": "value0",
                         "nodeType": "YulIdentifier",
-                        "src": "21416:6:8"
+                        "src": "21694:6:8"
                       },
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                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "21424:9:8"
+                        "src": "21702:9:8"
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                       "name": "abi_encode_enum_TokenType",
                       "nodeType": "YulIdentifier",
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@@ -16220,12 +17681,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "21454:9:8"
+                            "src": "21732:9:8"
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                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "21465:2:8",
+                            "src": "21743:2:8",
                             "type": "",
                             "value": "32"
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@@ -16233,31 +17694,31 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "21450:3:8"
+                          "src": "21728:3:8"
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                         "nodeType": "YulFunctionCall",
-                        "src": "21450:18:8"
+                        "src": "21728:18:8"
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                         "name": "value1",
                         "nodeType": "YulIdentifier",
-                        "src": "21470:6:8"
+                        "src": "21748:6:8"
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                       "name": "mstore",
                       "nodeType": "YulIdentifier",
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@@ -16265,14 +17726,14 @@
                           {
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                             "nodeType": "YulLiteral",
-                            "src": "21504:3:8",
+                            "src": "21782:3:8",
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                             "value": "160"
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                             "nodeType": "YulLiteral",
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                             "value": "1"
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@@ -16280,15 +17741,15 @@
                         "functionName": {
                           "name": "shl",
                           "nodeType": "YulIdentifier",
-                          "src": "21500:3:8"
+                          "src": "21778:3:8"
                         },
                         "nodeType": "YulFunctionCall",
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+                        "src": "21778:11:8"
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                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "21513:1:8",
+                        "src": "21791:1:8",
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                         "value": "1"
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@@ -16296,16 +17757,16 @@
                     "functionName": {
                       "name": "sub",
                       "nodeType": "YulIdentifier",
-                      "src": "21496:3:8"
+                      "src": "21774:3:8"
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                       "nodeType": "YulTypedName",
-                      "src": "21490:2:8",
+                      "src": "21768:2:8",
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@@ -16318,12 +17779,12 @@
                           {
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                             "nodeType": "YulIdentifier",
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+                            "src": "21813:9:8"
                           },
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                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "21546:2:8",
+                            "src": "21824:2:8",
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                             "value": "64"
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@@ -16331,43 +17792,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "21531:3:8"
+                          "src": "21809:3:8"
                         },
                         "nodeType": "YulFunctionCall",
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                             "nodeType": "YulIdentifier",
-                            "src": "21555:6:8"
+                            "src": "21833:6:8"
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                             "nodeType": "YulIdentifier",
-                            "src": "21563:2:8"
+                            "src": "21841:2:8"
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                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "21551:3:8"
+                          "src": "21829:3:8"
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@@ -16377,12 +17838,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "21587:9:8"
+                            "src": "21865:9:8"
                           },
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                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "21598:2:8",
+                            "src": "21876:2:8",
                             "type": "",
                             "value": "96"
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@@ -16390,43 +17851,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "21583:3:8"
+                          "src": "21861:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "21583:18:8"
+                        "src": "21861:18:8"
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                             "nodeType": "YulIdentifier",
-                            "src": "21607:6:8"
+                            "src": "21885:6:8"
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                             "nodeType": "YulIdentifier",
-                            "src": "21615:2:8"
+                            "src": "21893:2:8"
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                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "21603:3:8"
+                          "src": "21881:3:8"
                         },
                         "nodeType": "YulFunctionCall",
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@@ -16436,12 +17897,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "21639:9:8"
+                            "src": "21917:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "21650:3:8",
+                            "src": "21928:3:8",
                             "type": "",
                             "value": "128"
                           }
@@ -16449,43 +17910,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "21635:3:8"
+                          "src": "21913:3:8"
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                         "nodeType": "YulFunctionCall",
-                        "src": "21635:19:8"
+                        "src": "21913:19:8"
                       },
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                         "arguments": [
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                             "name": "value4",
                             "nodeType": "YulIdentifier",
-                            "src": "21660:6:8"
+                            "src": "21938:6:8"
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                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "21668:2:8"
+                            "src": "21946:2:8"
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                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "21656:3:8"
+                          "src": "21934:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "21656:15:8"
+                        "src": "21934:15:8"
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                       "name": "mstore",
                       "nodeType": "YulIdentifier",
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@@ -16495,12 +17956,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "21692:9:8"
+                            "src": "21970:9:8"
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                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "21703:3:8",
+                            "src": "21981:3:8",
                             "type": "",
                             "value": "160"
                           }
@@ -16508,27 +17969,27 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "21688:3:8"
+                          "src": "21966:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "21688:19:8"
+                        "src": "21966:19:8"
                       },
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                         "name": "value5",
                         "nodeType": "YulIdentifier",
-                        "src": "21709:6:8"
+                        "src": "21987:6:8"
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                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "21681:6:8"
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@@ -16538,12 +17999,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "21736:9:8"
+                            "src": "22014:9:8"
                           },
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                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "21747:3:8",
+                            "src": "22025:3:8",
                             "type": "",
                             "value": "192"
                           }
@@ -16551,15 +18012,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "21732:3:8"
+                          "src": "22010:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "21732:19:8"
+                        "src": "22010:19:8"
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                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "21753:3:8",
+                        "src": "22031:3:8",
                         "type": "",
                         "value": "224"
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@@ -16567,40 +18028,40 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "21725:6:8"
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                   "value": {
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                         "name": "value6",
                         "nodeType": "YulIdentifier",
-                        "src": "21800:6:8"
+                        "src": "22078:6:8"
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                         "name": "value7",
                         "nodeType": "YulIdentifier",
-                        "src": "21808:6:8"
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                         "arguments": [
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "21820:9:8"
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                             "nodeType": "YulLiteral",
-                            "src": "21831:3:8",
+                            "src": "22109:3:8",
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                             "value": "224"
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@@ -16608,85 +18069,85 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "21816:3:8"
+                          "src": "22094:3:8"
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                         "nodeType": "YulFunctionCall",
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                       "nodeType": "YulIdentifier",
-                      "src": "21774:25:8"
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+            "name": "abi_encode_tuple_t_enum$_TokenType_$2607_t_rational_1_by_1_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed",
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                 "name": "headStart",
                 "nodeType": "YulTypedName",
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                 "name": "value7",
                 "nodeType": "YulTypedName",
-                "src": "21304:6:8",
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-                "src": "21312:6:8",
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-                "src": "21328:6:8",
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-                "src": "21360:6:8",
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@@ -16694,16 +18155,16 @@
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@@ -16711,24 +18172,24 @@
                       {
                         "name": "value0",
                         "nodeType": "YulIdentifier",
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@@ -16738,12 +18199,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
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                             "nodeType": "YulLiteral",
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                             "value": "32"
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@@ -16751,31 +18212,31 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "22226:3:8"
+                          "src": "22504:3:8"
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                         "nodeType": "YulFunctionCall",
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+                        "src": "22504:18:8"
                       },
                       {
                         "name": "value1",
                         "nodeType": "YulIdentifier",
-                        "src": "22246:6:8"
+                        "src": "22524:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "22219:6:8"
+                      "src": "22497:6:8"
                     },
                     "nodeType": "YulFunctionCall",
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+                    "src": "22497:34:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "22219:34:8"
+                  "src": "22497:34:8"
                 },
                 {
                   "nodeType": "YulVariableDeclaration",
-                  "src": "22262:29:8",
+                  "src": "22540:29:8",
                   "value": {
                     "arguments": [
                       {
@@ -16783,14 +18244,14 @@
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "22280:3:8",
+                            "src": "22558:3:8",
                             "type": "",
                             "value": "160"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "22285:1:8",
+                            "src": "22563:1:8",
                             "type": "",
                             "value": "1"
                           }
@@ -16798,15 +18259,15 @@
                         "functionName": {
                           "name": "shl",
                           "nodeType": "YulIdentifier",
-                          "src": "22276:3:8"
+                          "src": "22554:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "22276:11:8"
+                        "src": "22554:11:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "22289:1:8",
+                        "src": "22567:1:8",
                         "type": "",
                         "value": "1"
                       }
@@ -16814,16 +18275,16 @@
                     "functionName": {
                       "name": "sub",
                       "nodeType": "YulIdentifier",
-                      "src": "22272:3:8"
+                      "src": "22550:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "22272:19:8"
+                    "src": "22550:19:8"
                   },
                   "variables": [
                     {
                       "name": "_1",
                       "nodeType": "YulTypedName",
-                      "src": "22266:2:8",
+                      "src": "22544:2:8",
                       "type": ""
                     }
                   ]
@@ -16836,12 +18297,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "22311:9:8"
+                            "src": "22589:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "22322:2:8",
+                            "src": "22600:2:8",
                             "type": "",
                             "value": "64"
                           }
@@ -16849,43 +18310,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "22307:3:8"
+                          "src": "22585:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "22307:18:8"
+                        "src": "22585:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value2",
                             "nodeType": "YulIdentifier",
-                            "src": "22331:6:8"
+                            "src": "22609:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "22339:2:8"
+                            "src": "22617:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "22327:3:8"
+                          "src": "22605:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "22327:15:8"
+                        "src": "22605:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "22300:6:8"
+                      "src": "22578:6:8"
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+                    "src": "22578:43:8"
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+                  "src": "22578:43:8"
                 },
                 {
                   "expression": {
@@ -16895,12 +18356,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "22363:9:8"
+                            "src": "22641:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "22374:2:8",
+                            "src": "22652:2:8",
                             "type": "",
                             "value": "96"
                           }
@@ -16908,43 +18369,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "22359:3:8"
+                          "src": "22637:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "22359:18:8"
+                        "src": "22637:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value3",
                             "nodeType": "YulIdentifier",
-                            "src": "22383:6:8"
+                            "src": "22661:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "22391:2:8"
+                            "src": "22669:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "22379:3:8"
+                          "src": "22657:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "22379:15:8"
+                        "src": "22657:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "22352:6:8"
+                      "src": "22630:6:8"
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                     "nodeType": "YulFunctionCall",
-                    "src": "22352:43:8"
+                    "src": "22630:43:8"
                   },
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+                  "src": "22630:43:8"
                 },
                 {
                   "expression": {
@@ -16954,12 +18415,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "22415:9:8"
+                            "src": "22693:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "22426:3:8",
+                            "src": "22704:3:8",
                             "type": "",
                             "value": "128"
                           }
@@ -16967,43 +18428,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "22411:3:8"
+                          "src": "22689:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "22411:19:8"
+                        "src": "22689:19:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value4",
                             "nodeType": "YulIdentifier",
-                            "src": "22436:6:8"
+                            "src": "22714:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "22444:2:8"
+                            "src": "22722:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "22432:3:8"
+                          "src": "22710:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "22432:15:8"
+                        "src": "22710:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "22404:6:8"
+                      "src": "22682:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "22404:44:8"
+                    "src": "22682:44:8"
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-                  "src": "22404:44:8"
+                  "src": "22682:44:8"
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@@ -17013,12 +18474,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "22468:9:8"
+                            "src": "22746:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "22479:3:8",
+                            "src": "22757:3:8",
                             "type": "",
                             "value": "160"
                           }
@@ -17026,27 +18487,27 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "22464:3:8"
+                          "src": "22742:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "22464:19:8"
+                        "src": "22742:19:8"
                       },
                       {
                         "name": "value5",
                         "nodeType": "YulIdentifier",
-                        "src": "22485:6:8"
+                        "src": "22763:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "22457:6:8"
+                      "src": "22735:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "22457:35:8"
+                    "src": "22735:35:8"
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+                  "src": "22735:35:8"
                 },
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                   "expression": {
@@ -17056,12 +18517,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "22512:9:8"
+                            "src": "22790:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "22523:3:8",
+                            "src": "22801:3:8",
                             "type": "",
                             "value": "192"
                           }
@@ -17069,15 +18530,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "22508:3:8"
+                          "src": "22786:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "22508:19:8"
+                        "src": "22786:19:8"
                       },
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                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "22529:3:8",
+                        "src": "22807:3:8",
                         "type": "",
                         "value": "224"
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@@ -17085,40 +18546,40 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "22501:6:8"
+                      "src": "22779:6:8"
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+                  "src": "22779:32:8"
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                   "nodeType": "YulAssignment",
-                  "src": "22542:70:8",
+                  "src": "22820:70:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "value6",
                         "nodeType": "YulIdentifier",
-                        "src": "22576:6:8"
+                        "src": "22854:6:8"
                       },
                       {
                         "name": "value7",
                         "nodeType": "YulIdentifier",
-                        "src": "22584:6:8"
+                        "src": "22862:6:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "22596:9:8"
+                            "src": "22874:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "22607:3:8",
+                            "src": "22885:3:8",
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                             "value": "224"
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@@ -17126,85 +18587,85 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "22592:3:8"
+                          "src": "22870:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "22592:19:8"
+                        "src": "22870:19:8"
                       }
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                     "functionName": {
                       "name": "abi_encode_bytes_calldata",
                       "nodeType": "YulIdentifier",
-                      "src": "22550:25:8"
+                      "src": "22828:25:8"
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                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "22542:4:8"
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+            "name": "abi_encode_tuple_t_enum$_TokenType_$2607_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed",
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             "parameters": [
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                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "22069:9:8",
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                 "type": ""
               },
               {
                 "name": "value7",
                 "nodeType": "YulTypedName",
-                "src": "22080:6:8",
+                "src": "22358:6:8",
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               },
               {
                 "name": "value6",
                 "nodeType": "YulTypedName",
-                "src": "22088:6:8",
+                "src": "22366:6:8",
                 "type": ""
               },
               {
                 "name": "value5",
                 "nodeType": "YulTypedName",
-                "src": "22096:6:8",
+                "src": "22374:6:8",
                 "type": ""
               },
               {
                 "name": "value4",
                 "nodeType": "YulTypedName",
-                "src": "22104:6:8",
+                "src": "22382:6:8",
                 "type": ""
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               {
                 "name": "value3",
                 "nodeType": "YulTypedName",
-                "src": "22112:6:8",
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                 "name": "value2",
                 "nodeType": "YulTypedName",
-                "src": "22120:6:8",
+                "src": "22398:6:8",
                 "type": ""
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               {
                 "name": "value1",
                 "nodeType": "YulTypedName",
-                "src": "22128:6:8",
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                 "name": "value0",
                 "nodeType": "YulTypedName",
-                "src": "22136:6:8",
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@@ -17212,16 +18673,16 @@
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                 "name": "tail",
                 "nodeType": "YulTypedName",
-                "src": "22147:4:8",
+                "src": "22425:4:8",
                 "type": ""
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             "body": {
               "nodeType": "YulBlock",
-              "src": "22797:166:8",
+              "src": "23075:166:8",
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                   "expression": {
@@ -17229,12 +18690,12 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "22814:9:8"
+                        "src": "23092:9:8"
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                         "nodeType": "YulLiteral",
-                        "src": "22825:2:8",
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@@ -17242,13 +18703,13 @@
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@@ -17258,12 +18719,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
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                           },
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                             "kind": "number",
                             "nodeType": "YulLiteral",
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                             "value": "32"
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@@ -17271,15 +18732,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "22844:3:8"
+                          "src": "23122:3:8"
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                         "nodeType": "YulFunctionCall",
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                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "22864:2:8",
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                         "value": "16"
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@@ -17287,13 +18748,13 @@
                     "functionName": {
                       "name": "mstore",
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@@ -17303,12 +18764,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
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+                            "src": "23165:9:8"
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                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "22898:2:8",
+                            "src": "23176:2:8",
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                             "value": "64"
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@@ -17316,15 +18777,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
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+                          "src": "23161:3:8"
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+                        "src": "23161:18:8"
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                         "kind": "string",
                         "nodeType": "YulLiteral",
-                        "src": "22903:18:8",
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                         "value": "Too many commits"
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@@ -17332,28 +18793,28 @@
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                       "name": "mstore",
                       "nodeType": "YulIdentifier",
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                         "nodeType": "YulIdentifier",
-                        "src": "22943:9:8"
+                        "src": "23221:9:8"
                       },
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                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "22954:2:8",
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@@ -17361,16 +18822,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
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                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "22931:4:8"
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@@ -17382,7 +18843,7 @@
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                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "22774:9:8",
+                "src": "23052:9:8",
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@@ -17390,16 +18851,16 @@
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                 "name": "tail",
                 "nodeType": "YulTypedName",
-                "src": "22788:4:8",
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@@ -17407,12 +18868,12 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "23159:9:8"
+                        "src": "23437:9:8"
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                         "kind": "number",
                         "nodeType": "YulLiteral",
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                         "value": "32"
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@@ -17420,13 +18881,13 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "23152:6:8"
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@@ -17436,12 +18897,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "23193:9:8"
+                            "src": "23471:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "23204:2:8",
+                            "src": "23482:2:8",
                             "type": "",
                             "value": "32"
                           }
@@ -17449,15 +18910,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "23189:3:8"
+                          "src": "23467:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "23189:18:8"
+                        "src": "23467:18:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "23209:2:8",
+                        "src": "23487:2:8",
                         "type": "",
                         "value": "13"
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@@ -17465,13 +18926,13 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "23182:6:8"
+                      "src": "23460:6:8"
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-                    "src": "23182:30:8"
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+                  "src": "23460:30:8"
                 },
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                   "expression": {
@@ -17481,12 +18942,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "23232:9:8"
+                            "src": "23510:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "23243:2:8",
+                            "src": "23521:2:8",
                             "type": "",
                             "value": "64"
                           }
@@ -17494,15 +18955,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "23228:3:8"
+                          "src": "23506:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "23228:18:8"
+                        "src": "23506:18:8"
                       },
                       {
                         "kind": "string",
                         "nodeType": "YulLiteral",
-                        "src": "23248:15:8",
+                        "src": "23526:15:8",
                         "type": "",
                         "value": "Nonce too low"
                       }
@@ -17510,28 +18971,28 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "23221:6:8"
+                      "src": "23499:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "23221:43:8"
+                    "src": "23499:43:8"
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+                  "src": "23499:43:8"
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+                  "src": "23551:26:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "23285:9:8"
+                        "src": "23563:9:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "23296:2:8",
+                        "src": "23574:2:8",
                         "type": "",
                         "value": "96"
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@@ -17539,16 +19000,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "23281:3:8"
+                      "src": "23559:3:8"
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                   "variableNames": [
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                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "23273:4:8"
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@@ -17560,7 +19021,7 @@
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                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "23119:9:8",
+                "src": "23397:9:8",
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@@ -17568,16 +19029,16 @@
               {
                 "name": "tail",
                 "nodeType": "YulTypedName",
-                "src": "23133:4:8",
+                "src": "23411:4:8",
                 "type": ""
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-            "src": "22968:337:8"
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-              "src": "23484:180:8",
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               "statements": [
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                   "expression": {
@@ -17585,12 +19046,12 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "23501:9:8"
+                        "src": "23779:9:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "23512:2:8",
+                        "src": "23790:2:8",
                         "type": "",
                         "value": "32"
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@@ -17598,13 +19059,13 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "23494:6:8"
+                      "src": "23772:6:8"
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@@ -17614,12 +19075,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "23535:9:8"
+                            "src": "23813:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "23546:2:8",
+                            "src": "23824:2:8",
                             "type": "",
                             "value": "32"
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@@ -17627,15 +19088,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "23531:3:8"
+                          "src": "23809:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "23531:18:8"
+                        "src": "23809:18:8"
                       },
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                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "23551:2:8",
+                        "src": "23829:2:8",
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                         "value": "30"
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@@ -17643,13 +19104,13 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "23524:6:8"
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@@ -17659,12 +19120,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "23574:9:8"
+                            "src": "23852:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "23585:2:8",
+                            "src": "23863:2:8",
                             "type": "",
                             "value": "64"
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@@ -17672,15 +19133,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "23570:3:8"
+                          "src": "23848:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "23570:18:8"
+                        "src": "23848:18:8"
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                       {
                         "kind": "string",
                         "nodeType": "YulLiteral",
-                        "src": "23590:32:8",
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                         "type": "",
                         "value": "Last resort address is not set"
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@@ -17688,28 +19149,28 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "23563:6:8"
+                      "src": "23841:6:8"
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                   "value": {
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                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "23644:9:8"
+                        "src": "23922:9:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "23655:2:8",
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                         "type": "",
                         "value": "96"
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@@ -17717,16 +19178,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "23640:3:8"
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                       "nodeType": "YulIdentifier",
-                      "src": "23632:4:8"
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@@ -17738,7 +19199,7 @@
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                 "nodeType": "YulTypedName",
-                "src": "23461:9:8",
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@@ -17746,16 +19207,16 @@
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                 "nodeType": "YulTypedName",
-                "src": "23475:4:8",
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-              "src": "23843:165:8",
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@@ -17763,12 +19224,12 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "23860:9:8"
+                        "src": "24138:9:8"
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                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "23871:2:8",
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                         "value": "32"
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@@ -17776,13 +19237,13 @@
                     "functionName": {
                       "name": "mstore",
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@@ -17792,12 +19253,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "23894:9:8"
+                            "src": "24172:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "23905:2:8",
+                            "src": "24183:2:8",
                             "type": "",
                             "value": "32"
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@@ -17805,15 +19266,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "23890:3:8"
+                          "src": "24168:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "23890:18:8"
+                        "src": "24168:18:8"
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                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "23910:2:8",
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@@ -17821,13 +19282,13 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
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@@ -17837,12 +19298,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "23933:9:8"
+                            "src": "24211:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "23944:2:8",
+                            "src": "24222:2:8",
                             "type": "",
                             "value": "64"
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@@ -17850,15 +19311,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "23929:3:8"
+                          "src": "24207:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "23929:18:8"
+                        "src": "24207:18:8"
                       },
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                         "kind": "string",
                         "nodeType": "YulLiteral",
-                        "src": "23949:17:8",
+                        "src": "24227:17:8",
                         "type": "",
                         "value": "Reveal too late"
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@@ -17866,28 +19327,28 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
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                   "value": {
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                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "23988:9:8"
+                        "src": "24266:9:8"
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                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "23999:2:8",
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                         "value": "96"
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@@ -17895,16 +19356,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "23984:3:8"
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-                      "src": "23976:4:8"
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@@ -17916,7 +19377,7 @@
               {
                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "23820:9:8",
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@@ -17924,16 +19385,16 @@
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-                "src": "23834:4:8",
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@@ -17941,12 +19402,12 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "24204:9:8"
+                        "src": "24482:9:8"
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                         "nodeType": "YulLiteral",
-                        "src": "24215:2:8",
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@@ -17954,13 +19415,13 @@
                     "functionName": {
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@@ -17970,12 +19431,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
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+                            "src": "24516:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "24249:2:8",
+                            "src": "24527:2:8",
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                             "value": "32"
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@@ -17983,15 +19444,15 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "24234:3:8"
+                          "src": "24512:3:8"
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                         "nodeType": "YulLiteral",
-                        "src": "24254:2:8",
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@@ -17999,13 +19460,13 @@
                     "functionName": {
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@@ -18015,12 +19476,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "24277:9:8"
+                            "src": "24555:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "24288:2:8",
+                            "src": "24566:2:8",
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                             "value": "64"
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@@ -18028,15 +19489,15 @@
                         "functionName": {
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                           "nodeType": "YulIdentifier",
-                          "src": "24273:3:8"
+                          "src": "24551:3:8"
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                         "kind": "string",
                         "nodeType": "YulLiteral",
-                        "src": "24293:22:8",
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                         "value": "input bytes too long"
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@@ -18044,28 +19505,28 @@
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                       "name": "mstore",
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                         "name": "headStart",
                         "nodeType": "YulIdentifier",
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@@ -18073,16 +19534,16 @@
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@@ -18094,7 +19555,7 @@
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                 "nodeType": "YulTypedName",
-                "src": "24164:9:8",
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@@ -18102,16 +19563,16 @@
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-                "src": "24178:4:8",
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@@ -18504,12 +20321,12 @@
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@@ -18517,29 +20334,29 @@
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@@ -18549,12 +20366,12 @@
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                             "nodeType": "YulIdentifier",
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                             "nodeType": "YulLiteral",
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@@ -18562,44 +20379,44 @@
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                           "name": "add",
                           "nodeType": "YulIdentifier",
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-                        "value": "No commit found"
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                         "nodeType": "YulIdentifier",
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                             "nodeType": "YulLiteral",
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@@ -21057,31 +22741,31 @@
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                 "nodeType": "YulTypedName",
-                "src": "29823:4:8",
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                         "name": "headStart",
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@@ -21089,16 +22773,16 @@
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@@ -21108,24 +22792,24 @@
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                         "name": "headStart",
                         "nodeType": "YulIdentifier",
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+                        "src": "30853:9:8"
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                         "nodeType": "YulIdentifier",
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+                        "src": "30864:6:8"
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@@ -21135,12 +22819,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
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+                            "src": "30891:9:8"
                           },
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                             "kind": "number",
                             "nodeType": "YulLiteral",
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+                            "src": "30902:2:8",
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@@ -21148,17 +22832,17 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
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+                          "src": "30887:3:8"
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@@ -21167,14 +22851,14 @@
                                   {
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                                     "nodeType": "YulLiteral",
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                                     "value": "160"
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                                     "nodeType": "YulLiteral",
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@@ -21182,15 +22866,15 @@
                                 "functionName": {
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                                   "nodeType": "YulIdentifier",
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+                                  "src": "30923:3:8"
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@@ -21198,31 +22882,31 @@
                             "functionName": {
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                               "nodeType": "YulIdentifier",
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+                              "src": "30919:3:8"
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                           "nodeType": "YulIdentifier",
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@@ -21232,19 +22916,19 @@
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-                "src": "30091:6:8",
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@@ -21252,31 +22936,31 @@
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                         "name": "headStart",
                         "nodeType": "YulIdentifier",
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@@ -21284,16 +22968,16 @@
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@@ -21303,24 +22987,24 @@
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@@ -21330,12 +23014,12 @@
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                             "nodeType": "YulIdentifier",
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+                            "src": "31170:9:8"
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                             "nodeType": "YulLiteral",
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@@ -21343,27 +23027,27 @@
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+                          "src": "31166:3:8"
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@@ -21373,19 +23057,19 @@
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-                "src": "30370:6:8",
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-                "src": "30378:6:8",
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@@ -21393,31 +23077,31 @@
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-                "src": "30389:4:8",
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                         "nodeType": "YulIdentifier",
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@@ -21425,16 +23109,16 @@
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@@ -21444,24 +23128,24 @@
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                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "30739:9:8"
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@@ -21471,12 +23155,12 @@
                           {
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                             "nodeType": "YulIdentifier",
-                            "src": "30777:9:8"
+                            "src": "31459:9:8"
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                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "30788:2:8",
+                            "src": "31470:2:8",
                             "type": "",
                             "value": "32"
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@@ -21484,27 +23168,27 @@
                         "functionName": {
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                           "nodeType": "YulIdentifier",
-                          "src": "30773:3:8"
+                          "src": "31455:3:8"
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+                        "src": "31455:18:8"
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                         "name": "value1",
                         "nodeType": "YulIdentifier",
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                       "name": "mstore",
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@@ -21514,12 +23198,12 @@
                           {
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                             "nodeType": "YulIdentifier",
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+                            "src": "31502:9:8"
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                             "nodeType": "YulLiteral",
-                            "src": "30831:2:8",
+                            "src": "31513:2:8",
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                             "value": "64"
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@@ -21527,17 +23211,17 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "30816:3:8"
+                          "src": "31498:3:8"
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                             "nodeType": "YulIdentifier",
-                            "src": "30840:6:8"
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@@ -21546,14 +23230,14 @@
                                   {
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                                     "nodeType": "YulLiteral",
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                                     "value": "160"
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                                     "nodeType": "YulLiteral",
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@@ -21561,15 +23245,15 @@
                                 "functionName": {
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                                   "nodeType": "YulIdentifier",
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+                                  "src": "31534:3:8"
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@@ -21577,31 +23261,31 @@
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                               "nodeType": "YulIdentifier",
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                           "nodeType": "YulIdentifier",
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@@ -21669,16 +23353,16 @@
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@@ -21688,24 +23372,24 @@
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@@ -21715,12 +23399,12 @@
                           {
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                             "nodeType": "YulIdentifier",
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                             "nodeType": "YulLiteral",
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@@ -21728,27 +23412,27 @@
                         "functionName": {
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-                          "src": "31160:3:8"
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                         },
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-                        "src": "31160:18:8"
+                        "src": "31842:18:8"
                       },
                       {
                         "name": "value1",
                         "nodeType": "YulIdentifier",
-                        "src": "31180:6:8"
+                        "src": "31862:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "31153:6:8"
+                      "src": "31835:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "31153:34:8"
+                    "src": "31835:34:8"
                   },
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-                  "src": "31153:34:8"
+                  "src": "31835:34:8"
                 },
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                   "expression": {
@@ -21758,12 +23442,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "31207:9:8"
+                            "src": "31889:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "31218:2:8",
+                            "src": "31900:2:8",
                             "type": "",
                             "value": "64"
                           }
@@ -21771,27 +23455,27 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "31203:3:8"
+                          "src": "31885:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "31203:18:8"
+                        "src": "31885:18:8"
                       },
                       {
                         "name": "value2",
                         "nodeType": "YulIdentifier",
-                        "src": "31223:6:8"
+                        "src": "31905:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "31196:6:8"
+                      "src": "31878:6:8"
                     },
                     "nodeType": "YulFunctionCall",
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+                    "src": "31878:34:8"
                   },
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-                  "src": "31196:34:8"
+                  "src": "31878:34:8"
                 },
                 {
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@@ -21801,12 +23485,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "31250:9:8"
+                            "src": "31932:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "31261:2:8",
+                            "src": "31943:2:8",
                             "type": "",
                             "value": "96"
                           }
@@ -21814,17 +23498,17 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "31246:3:8"
+                          "src": "31928:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "31246:18:8"
+                        "src": "31928:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value3",
                             "nodeType": "YulIdentifier",
-                            "src": "31270:6:8"
+                            "src": "31952:6:8"
                           },
                           {
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@@ -21833,14 +23517,14 @@
                                   {
                                     "kind": "number",
                                     "nodeType": "YulLiteral",
-                                    "src": "31286:3:8",
+                                    "src": "31968:3:8",
                                     "type": "",
                                     "value": "160"
                                   },
                                   {
                                     "kind": "number",
                                     "nodeType": "YulLiteral",
-                                    "src": "31291:1:8",
+                                    "src": "31973:1:8",
                                     "type": "",
                                     "value": "1"
                                   }
@@ -21848,15 +23532,15 @@
                                 "functionName": {
                                   "name": "shl",
                                   "nodeType": "YulIdentifier",
-                                  "src": "31282:3:8"
+                                  "src": "31964:3:8"
                                 },
                                 "nodeType": "YulFunctionCall",
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+                                "src": "31964:11:8"
                               },
                               {
                                 "kind": "number",
                                 "nodeType": "YulLiteral",
-                                "src": "31295:1:8",
+                                "src": "31977:1:8",
                                 "type": "",
                                 "value": "1"
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@@ -21864,31 +23548,31 @@
                             "functionName": {
                               "name": "sub",
                               "nodeType": "YulIdentifier",
-                              "src": "31278:3:8"
+                              "src": "31960:3:8"
                             },
                             "nodeType": "YulFunctionCall",
-                            "src": "31278:19:8"
+                            "src": "31960:19:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "31266:3:8"
+                          "src": "31948:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "31266:32:8"
+                        "src": "31948:32:8"
                       }
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                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "31239:6:8"
+                      "src": "31921:6:8"
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+                    "src": "31921:60:8"
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-                  "src": "31239:60:8"
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@@ -21898,31 +23582,31 @@
               {
                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "31018:9:8",
+                "src": "31700:9:8",
                 "type": ""
               },
               {
                 "name": "value3",
                 "nodeType": "YulTypedName",
-                "src": "31029:6:8",
+                "src": "31711:6:8",
                 "type": ""
               },
               {
                 "name": "value2",
                 "nodeType": "YulTypedName",
-                "src": "31037:6:8",
+                "src": "31719:6:8",
                 "type": ""
               },
               {
                 "name": "value1",
                 "nodeType": "YulTypedName",
-                "src": "31045:6:8",
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                 "name": "value0",
                 "nodeType": "YulTypedName",
-                "src": "31053:6:8",
+                "src": "31735:6:8",
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@@ -21930,31 +23614,31 @@
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                 "nodeType": "YulTypedName",
-                "src": "31064:4:8",
+                "src": "31746:4:8",
                 "type": ""
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-            "src": "30880:425:8"
+            "src": "31562:425:8"
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           {
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-              "src": "31435:166:8",
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               "statements": [
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-                  "src": "31445:26:8",
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                   "value": {
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                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "31457:9:8"
+                        "src": "32139:9:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "31468:2:8",
+                        "src": "32150:2:8",
                         "type": "",
                         "value": "64"
                       }
@@ -21962,26 +23646,26 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "31453:3:8"
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                   "variableNames": [
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                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "31445:4:8"
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                 {
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-                  "src": "31480:20:8",
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                     "nodeType": "YulLiteral",
-                    "src": "31490:10:8",
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@@ -21989,7 +23673,7 @@
                     {
                       "name": "_1",
                       "nodeType": "YulTypedName",
-                      "src": "31484:2:8",
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                       "type": ""
                     }
                   ]
@@ -22000,40 +23684,40 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "31516:9:8"
+                        "src": "32198:9:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value0",
                             "nodeType": "YulIdentifier",
-                            "src": "31531:6:8"
+                            "src": "32213:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "31539:2:8"
+                            "src": "32221:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "31527:3:8"
+                          "src": "32209:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "31527:15:8"
+                        "src": "32209:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "31509:6:8"
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-                  "src": "31509:34:8"
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@@ -22043,12 +23727,12 @@
                           {
                             "name": "headStart",
                             "nodeType": "YulIdentifier",
-                            "src": "31563:9:8"
+                            "src": "32245:9:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "31574:2:8",
+                            "src": "32256:2:8",
                             "type": "",
                             "value": "32"
                           }
@@ -22056,43 +23740,43 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "31559:3:8"
+                          "src": "32241:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "31559:18:8"
+                        "src": "32241:18:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value1",
                             "nodeType": "YulIdentifier",
-                            "src": "31583:6:8"
+                            "src": "32265:6:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "31591:2:8"
+                            "src": "32273:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "31579:3:8"
+                          "src": "32261:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "31579:15:8"
+                        "src": "32261:15:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "31552:6:8"
+                      "src": "32234:6:8"
                     },
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@@ -22102,19 +23786,19 @@
               {
                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "31396:9:8",
+                "src": "32078:9:8",
                 "type": ""
               },
               {
                 "name": "value1",
                 "nodeType": "YulTypedName",
-                "src": "31407:6:8",
+                "src": "32089:6:8",
                 "type": ""
               },
               {
                 "name": "value0",
                 "nodeType": "YulTypedName",
-                "src": "31415:6:8",
+                "src": "32097:6:8",
                 "type": ""
               }
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@@ -22122,31 +23806,31 @@
               {
                 "name": "tail",
                 "nodeType": "YulTypedName",
-                "src": "31426:4:8",
+                "src": "32108:4:8",
                 "type": ""
               }
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-            "src": "31310:291:8"
+            "src": "31992:291:8"
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           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "31703:87:8",
+              "src": "32385:87:8",
               "statements": [
                 {
                   "nodeType": "YulAssignment",
-                  "src": "31713:26:8",
+                  "src": "32395:26:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "31725:9:8"
+                        "src": "32407:9:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "31736:2:8",
+                        "src": "32418:2:8",
                         "type": "",
                         "value": "32"
                       }
@@ -22154,16 +23838,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "31721:3:8"
+                      "src": "32403:3:8"
                     },
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-                    "src": "31721:18:8"
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                   "variableNames": [
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                       "name": "tail",
                       "nodeType": "YulIdentifier",
-                      "src": "31713:4:8"
+                      "src": "32395:4:8"
                     }
                   ]
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@@ -22173,19 +23857,19 @@
                       {
                         "name": "headStart",
                         "nodeType": "YulIdentifier",
-                        "src": "31755:9:8"
+                        "src": "32437:9:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "value0",
                             "nodeType": "YulIdentifier",
-                            "src": "31770:6:8"
+                            "src": "32452:6:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "31778:4:8",
+                            "src": "32460:4:8",
                             "type": "",
                             "value": "0xff"
                           }
@@ -22193,22 +23877,22 @@
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "31766:3:8"
+                          "src": "32448:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "31766:17:8"
+                        "src": "32448:17:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "31748:6:8"
+                      "src": "32430:6:8"
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-                  "src": "31748:36:8"
+                  "src": "32430:36:8"
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@@ -22218,13 +23902,13 @@
               {
                 "name": "headStart",
                 "nodeType": "YulTypedName",
-                "src": "31672:9:8",
+                "src": "32354:9:8",
                 "type": ""
               },
               {
                 "name": "value0",
                 "nodeType": "YulTypedName",
-                "src": "31683:6:8",
+                "src": "32365:6:8",
                 "type": ""
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@@ -22232,21 +23916,21 @@
               {
                 "name": "tail",
                 "nodeType": "YulTypedName",
-                "src": "31694:4:8",
+                "src": "32376:4:8",
                 "type": ""
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-            "src": "31606:184:8"
+            "src": "32288:184:8"
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           {
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-              "src": "31925:233:8",
+              "src": "32607:233:8",
               "statements": [
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                   "body": {
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-                    "src": "31963:32:8",
+                    "src": "32645:32:8",
                     "statements": [
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                         "expression": {
@@ -22254,24 +23938,24 @@
                             {
                               "name": "offsetOut",
                               "nodeType": "YulIdentifier",
-                              "src": "31972:9:8"
+                              "src": "32654:9:8"
                             },
                             {
                               "name": "offsetOut",
                               "nodeType": "YulIdentifier",
-                              "src": "31983:9:8"
+                              "src": "32665:9:8"
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                           "functionName": {
                             "name": "revert",
                             "nodeType": "YulIdentifier",
-                            "src": "31965:6:8"
+                            "src": "32647:6:8"
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                           "nodeType": "YulFunctionCall",
-                          "src": "31965:28:8"
+                          "src": "32647:28:8"
                         },
                         "nodeType": "YulExpressionStatement",
-                        "src": "31965:28:8"
+                        "src": "32647:28:8"
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@@ -22280,29 +23964,29 @@
                       {
                         "name": "startIndex",
                         "nodeType": "YulIdentifier",
-                        "src": "31941:10:8"
+                        "src": "32623:10:8"
                       },
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                         "name": "endIndex",
                         "nodeType": "YulIdentifier",
-                        "src": "31953:8:8"
+                        "src": "32635:8:8"
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                     ],
                     "functionName": {
                       "name": "gt",
                       "nodeType": "YulIdentifier",
-                      "src": "31938:2:8"
+                      "src": "32620:2:8"
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+                    "src": "32620:24:8"
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+                  "src": "32617:2:8"
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-                    "src": "32028:32:8",
+                    "src": "32710:32:8",
                     "statements": [
                       {
                         "expression": {
@@ -22310,24 +23994,24 @@
                             {
                               "name": "offsetOut",
                               "nodeType": "YulIdentifier",
-                              "src": "32037:9:8"
+                              "src": "32719:9:8"
                             },
                             {
                               "name": "offsetOut",
                               "nodeType": "YulIdentifier",
-                              "src": "32048:9:8"
+                              "src": "32730:9:8"
                             }
                           ],
                           "functionName": {
                             "name": "revert",
                             "nodeType": "YulIdentifier",
-                            "src": "32030:6:8"
+                            "src": "32712:6:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "32030:28:8"
+                          "src": "32712:28:8"
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-                        "src": "32030:28:8"
+                        "src": "32712:28:8"
                       }
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@@ -22336,86 +24020,86 @@
                       {
                         "name": "endIndex",
                         "nodeType": "YulIdentifier",
-                        "src": "32010:8:8"
+                        "src": "32692:8:8"
                       },
                       {
                         "name": "length",
                         "nodeType": "YulIdentifier",
-                        "src": "32020:6:8"
+                        "src": "32702:6:8"
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                     ],
                     "functionName": {
                       "name": "gt",
                       "nodeType": "YulIdentifier",
-                      "src": "32007:2:8"
+                      "src": "32689:2:8"
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+                    "src": "32689:20:8"
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+                  "src": "32686:2:8"
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+                  "src": "32751:36:8",
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                       {
                         "name": "offset",
                         "nodeType": "YulIdentifier",
-                        "src": "32086:6:8"
+                        "src": "32768:6:8"
                       },
                       {
                         "name": "startIndex",
                         "nodeType": "YulIdentifier",
-                        "src": "32094:10:8"
+                        "src": "32776:10:8"
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                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "32082:3:8"
+                      "src": "32764:3:8"
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                       "nodeType": "YulIdentifier",
-                      "src": "32069:9:8"
+                      "src": "32751:9:8"
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                   "nodeType": "YulAssignment",
-                  "src": "32114:38:8",
+                  "src": "32796:38:8",
                   "value": {
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                       {
                         "name": "endIndex",
                         "nodeType": "YulIdentifier",
-                        "src": "32131:8:8"
+                        "src": "32813:8:8"
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                       {
                         "name": "startIndex",
                         "nodeType": "YulIdentifier",
-                        "src": "32141:10:8"
+                        "src": "32823:10:8"
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                       "name": "sub",
                       "nodeType": "YulIdentifier",
-                      "src": "32127:3:8"
+                      "src": "32809:3:8"
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                   "variableNames": [
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                       "name": "lengthOut",
                       "nodeType": "YulIdentifier",
-                      "src": "32114:9:8"
+                      "src": "32796:9:8"
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@@ -22427,25 +24111,25 @@
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                 "nodeType": "YulTypedName",
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                 "name": "length",
                 "nodeType": "YulTypedName",
-                "src": "31867:6:8",
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                 "nodeType": "YulTypedName",
-                "src": "31875:10:8",
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                 "nodeType": "YulTypedName",
-                "src": "31887:8:8",
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@@ -22453,27 +24137,27 @@
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                 "nodeType": "YulTypedName",
-                "src": "31900:9:8",
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                 "nodeType": "YulTypedName",
-                "src": "31911:9:8",
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@@ -22481,13 +24165,13 @@
                           "functionName": {
                             "name": "panic_error_0x11",
                             "nodeType": "YulIdentifier",
-                            "src": "32240:16:8"
+                            "src": "32922:16:8"
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@@ -22496,65 +24180,65 @@
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                         "nodeType": "YulIdentifier",
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+                        "src": "32909:1:8"
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                             "nodeType": "YulIdentifier",
-                            "src": "32234:1:8"
+                            "src": "32916:1:8"
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                           "nodeType": "YulIdentifier",
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                         "nodeType": "YulIdentifier",
-                        "src": "32280:1:8"
+                        "src": "32962:1:8"
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                         "nodeType": "YulIdentifier",
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+                        "src": "32965:1:8"
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                       "nodeType": "YulIdentifier",
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@@ -22566,13 +24250,13 @@
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-                "src": "32197:1:8",
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@@ -22580,24 +24264,24 @@
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-                "src": "32203:3:8",
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@@ -22605,73 +24289,73 @@
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                         "nodeType": "YulIdentifier",
-                        "src": "32397:1:8"
+                        "src": "33079:1:8"
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                         "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
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                       "nodeType": "YulTypedName",
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                         "nodeType": "YulIdentifier",
-                        "src": "32427:1:8"
+                        "src": "33109:1:8"
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                         "nodeType": "YulIdentifier",
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@@ -22687,13 +24371,13 @@
                           "functionName": {
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                             "nodeType": "YulIdentifier",
-                            "src": "32469:16:8"
+                            "src": "33151:16:8"
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@@ -22702,70 +24386,70 @@
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                         "nodeType": "YulIdentifier",
-                        "src": "32448:3:8"
+                        "src": "33130:3:8"
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                         "arguments": [
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                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "32457:2:8"
+                            "src": "33139:2:8"
                           },
                           {
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                             "nodeType": "YulIdentifier",
-                            "src": "32461:3:8"
+                            "src": "33143:3:8"
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                           "nodeType": "YulIdentifier",
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+                          "src": "33135:3:8"
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                       "nodeType": "YulIdentifier",
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                         "name": "x_1",
                         "nodeType": "YulIdentifier",
-                        "src": "32509:3:8"
+                        "src": "33191:3:8"
                       },
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                         "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
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@@ -22777,13 +24461,13 @@
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                 "nodeType": "YulTypedName",
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                 "nodeType": "YulTypedName",
-                "src": "32329:1:8",
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@@ -22791,21 +24475,21 @@
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                 "nodeType": "YulTypedName",
-                "src": "32335:3:8",
+                "src": "33017:3:8",
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@@ -22813,13 +24497,13 @@
                           "functionName": {
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                             "nodeType": "YulIdentifier",
-                            "src": "32600:16:8"
+                            "src": "33282:16:8"
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@@ -22828,49 +24512,49 @@
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                         "nodeType": "YulIdentifier",
-                        "src": "32595:1:8"
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                       "nodeType": "YulIdentifier",
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                         "name": "x",
                         "nodeType": "YulIdentifier",
-                        "src": "32638:1:8"
+                        "src": "33320:1:8"
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                         "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
-                      "src": "32629:1:8"
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@@ -22882,13 +24566,13 @@
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                 "nodeType": "YulTypedName",
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-                "src": "32563:1:8",
+                "src": "33245:1:8",
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@@ -22896,24 +24580,24 @@
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                 "nodeType": "YulTypedName",
-                "src": "32569:1:8",
+                "src": "33251:1:8",
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@@ -22921,40 +24605,40 @@
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                         "nodeType": "YulIdentifier",
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+                        "src": "33435:1:8"
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                         "nodeType": "YulIdentifier",
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@@ -22962,7 +24646,7 @@
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@@ -22970,13 +24654,13 @@
                           "functionName": {
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                             "nodeType": "YulIdentifier",
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+                            "src": "33467:16:8"
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@@ -22985,23 +24669,23 @@
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                         "nodeType": "YulIdentifier",
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@@ -23009,41 +24693,41 @@
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                             "nodeType": "YulIdentifier",
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+                            "src": "33509:1:8"
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                             "nodeType": "YulIdentifier",
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+                            "src": "33512:2:8"
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                           "nodeType": "YulIdentifier",
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@@ -23055,13 +24739,13 @@
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                 "nodeType": "YulTypedName",
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@@ -23069,21 +24753,21 @@
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@@ -23091,13 +24775,13 @@
                           "functionName": {
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                             "nodeType": "YulIdentifier",
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+                            "src": "33645:16:8"
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@@ -23110,32 +24794,32 @@
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                                 "nodeType": "YulIdentifier",
-                                "src": "32933:1:8"
+                                "src": "33615:1:8"
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                             "functionName": {
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                               "nodeType": "YulIdentifier",
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                           "nodeType": "YulIdentifier",
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@@ -23144,7 +24828,7 @@
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@@ -23152,75 +24836,75 @@
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                                   "nodeType": "YulIdentifier",
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+                                  "src": "33630:3:8"
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+                                "src": "33638:1:8"
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                               "nodeType": "YulIdentifier",
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                           "nodeType": "YulIdentifier",
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                         "nodeType": "YulIdentifier",
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+                        "src": "33689:1:8"
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                         "nodeType": "YulIdentifier",
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+                        "src": "33692:1:8"
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@@ -23232,13 +24916,13 @@
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@@ -23246,24 +24930,24 @@
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@@ -23271,73 +24955,73 @@
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                         "nodeType": "YulIdentifier",
-                        "src": "33128:1:8"
+                        "src": "33810:1:8"
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                         "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
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                       "nodeType": "YulTypedName",
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                         "nodeType": "YulIdentifier",
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+                        "src": "33840:1:8"
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                         "nodeType": "YulIdentifier",
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@@ -23345,7 +25029,7 @@
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@@ -23353,13 +25037,13 @@
                           "functionName": {
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                             "nodeType": "YulIdentifier",
-                            "src": "33226:16:8"
+                            "src": "33908:16:8"
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+                          "src": "33908:18:8"
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@@ -23372,104 +25056,104 @@
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                                 "nodeType": "YulIdentifier",
-                                "src": "33194:3:8"
+                                "src": "33876:3:8"
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                               "nodeType": "YulIdentifier",
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+                              "src": "33869:6:8"
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                           "nodeType": "YulIdentifier",
-                          "src": "33180:6:8"
+                          "src": "33862:6:8"
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+                        "src": "33862:19:8"
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                         "arguments": [
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                             "name": "y_1",
                             "nodeType": "YulIdentifier",
-                            "src": "33204:3:8"
+                            "src": "33886:3:8"
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                                 "nodeType": "YulIdentifier",
-                                "src": "33213:2:8"
+                                "src": "33895:2:8"
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                                 "nodeType": "YulIdentifier",
-                                "src": "33217:3:8"
+                                "src": "33899:3:8"
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                             "functionName": {
                               "name": "div",
                               "nodeType": "YulIdentifier",
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+                              "src": "33891:3:8"
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                         "functionName": {
                           "name": "gt",
                           "nodeType": "YulIdentifier",
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+                          "src": "33883:2:8"
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                       "nodeType": "YulIdentifier",
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                         "nodeType": "YulIdentifier",
-                        "src": "33270:3:8"
+                        "src": "33952:3:8"
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                         "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
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-                      "src": "33255:7:8"
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@@ -23481,13 +25165,13 @@
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                 "nodeType": "YulTypedName",
-                "src": "33053:1:8",
+                "src": "33735:1:8",
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                 "nodeType": "YulTypedName",
-                "src": "33056:1:8",
+                "src": "33738:1:8",
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@@ -23495,21 +25179,21 @@
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                 "nodeType": "YulTypedName",
-                "src": "33062:7:8",
+                "src": "33744:7:8",
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-                    "src": "33361:22:8",
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@@ -23517,13 +25201,13 @@
                           "functionName": {
                             "name": "panic_error_0x11",
                             "nodeType": "YulIdentifier",
-                            "src": "33363:16:8"
+                            "src": "34045:16:8"
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                           "nodeType": "YulFunctionCall",
-                          "src": "33363:18:8"
+                          "src": "34045:18:8"
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+                        "src": "34045:18:8"
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@@ -23532,54 +25216,54 @@
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                         "nodeType": "YulIdentifier",
-                        "src": "33355:1:8"
+                        "src": "34037:1:8"
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                         "name": "y",
                         "nodeType": "YulIdentifier",
-                        "src": "33358:1:8"
+                        "src": "34040:1:8"
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                       "nodeType": "YulIdentifier",
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                         "name": "x",
                         "nodeType": "YulIdentifier",
-                        "src": "33404:1:8"
+                        "src": "34086:1:8"
                       },
                       {
                         "name": "y",
                         "nodeType": "YulIdentifier",
-                        "src": "33407:1:8"
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                       "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
-                      "src": "33392:4:8"
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@@ -23591,13 +25275,13 @@
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                 "nodeType": "YulTypedName",
-                "src": "33321:1:8",
+                "src": "34003:1:8",
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                 "name": "y",
                 "nodeType": "YulTypedName",
-                "src": "33324:1:8",
+                "src": "34006:1:8",
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@@ -23605,24 +25289,24 @@
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                 "nodeType": "YulTypedName",
-                "src": "33330:4:8",
+                "src": "34012:4:8",
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@@ -23630,73 +25314,73 @@
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                       "nodeType": "YulTypedName",
-                      "src": "33482:2:8",
+                      "src": "34164:2:8",
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-                  "src": "33507:21:8",
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                         "name": "x",
                         "nodeType": "YulIdentifier",
-                        "src": "33522:1:8"
+                        "src": "34204:1:8"
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                         "nodeType": "YulIdentifier",
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                       "name": "and",
                       "nodeType": "YulIdentifier",
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                       "nodeType": "YulTypedName",
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                         "nodeType": "YulIdentifier",
-                        "src": "33552:1:8"
+                        "src": "34234:1:8"
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                         "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
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                       "nodeType": "YulTypedName",
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@@ -23704,7 +25388,7 @@
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@@ -23712,13 +25396,13 @@
                           "functionName": {
                             "name": "panic_error_0x11",
                             "nodeType": "YulIdentifier",
-                            "src": "33585:16:8"
+                            "src": "34267:16:8"
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@@ -23727,54 +25411,54 @@
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                         "name": "x_1",
                         "nodeType": "YulIdentifier",
-                        "src": "33573:3:8"
+                        "src": "34255:3:8"
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                         "name": "y_1",
                         "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
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                         "name": "x_1",
                         "nodeType": "YulIdentifier",
-                        "src": "33626:3:8"
+                        "src": "34308:3:8"
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                         "name": "y_1",
                         "nodeType": "YulIdentifier",
-                        "src": "33631:3:8"
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                       "nodeType": "YulIdentifier",
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                       "nodeType": "YulIdentifier",
-                      "src": "33614:4:8"
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@@ -23786,13 +25470,13 @@
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                 "nodeType": "YulTypedName",
-                "src": "33450:1:8",
+                "src": "34132:1:8",
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                 "nodeType": "YulTypedName",
-                "src": "33453:1:8",
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@@ -23800,31 +25484,31 @@
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                 "nodeType": "YulTypedName",
-                "src": "33459:4:8",
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                         "nodeType": "YulIdentifier",
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+                        "src": "34400:1:8"
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                         "nodeType": "YulLiteral",
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@@ -23832,34 +25516,34 @@
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-                      "src": "33714:3:8"
+                      "src": "34396:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "33714:12:8"
+                    "src": "34396:12:8"
                   },
                   "variables": [
                     {
                       "name": "x_1",
                       "nodeType": "YulTypedName",
-                      "src": "33707:3:8",
+                      "src": "34389:3:8",
                       "type": ""
                     }
                   ]
                 },
                 {
                   "nodeType": "YulVariableDeclaration",
-                  "src": "33735:23:8",
+                  "src": "34417:23:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "y",
                         "nodeType": "YulIdentifier",
-                        "src": "33750:1:8"
+                        "src": "34432:1:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "33753:4:8",
+                        "src": "34435:4:8",
                         "type": "",
                         "value": "0xff"
                       }
@@ -23867,16 +25551,16 @@
                     "functionName": {
                       "name": "and",
                       "nodeType": "YulIdentifier",
-                      "src": "33746:3:8"
+                      "src": "34428:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "33746:12:8"
+                    "src": "34428:12:8"
                   },
                   "variables": [
                     {
                       "name": "y_1",
                       "nodeType": "YulTypedName",
-                      "src": "33739:3:8",
+                      "src": "34421:3:8",
                       "type": ""
                     }
                   ]
@@ -23884,7 +25568,7 @@
                 {
                   "body": {
                     "nodeType": "YulBlock",
-                    "src": "33783:22:8",
+                    "src": "34465:22:8",
                     "statements": [
                       {
                         "expression": {
@@ -23892,13 +25576,13 @@
                           "functionName": {
                             "name": "panic_error_0x11",
                             "nodeType": "YulIdentifier",
-                            "src": "33785:16:8"
+                            "src": "34467:16:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "33785:18:8"
+                          "src": "34467:18:8"
                         },
                         "nodeType": "YulExpressionStatement",
-                        "src": "33785:18:8"
+                        "src": "34467:18:8"
                       }
                     ]
                   },
@@ -23907,54 +25591,54 @@
                       {
                         "name": "x_1",
                         "nodeType": "YulIdentifier",
-                        "src": "33773:3:8"
+                        "src": "34455:3:8"
                       },
                       {
                         "name": "y_1",
                         "nodeType": "YulIdentifier",
-                        "src": "33778:3:8"
+                        "src": "34460:3:8"
                       }
                     ],
                     "functionName": {
                       "name": "lt",
                       "nodeType": "YulIdentifier",
-                      "src": "33770:2:8"
+                      "src": "34452:2:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "33770:12:8"
+                    "src": "34452:12:8"
                   },
                   "nodeType": "YulIf",
-                  "src": "33767:2:8"
+                  "src": "34449:2:8"
                 },
                 {
                   "nodeType": "YulAssignment",
-                  "src": "33814:21:8",
+                  "src": "34496:21:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "x_1",
                         "nodeType": "YulIdentifier",
-                        "src": "33826:3:8"
+                        "src": "34508:3:8"
                       },
                       {
                         "name": "y_1",
                         "nodeType": "YulIdentifier",
-                        "src": "33831:3:8"
+                        "src": "34513:3:8"
                       }
                     ],
                     "functionName": {
                       "name": "sub",
                       "nodeType": "YulIdentifier",
-                      "src": "33822:3:8"
+                      "src": "34504:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "33822:13:8"
+                    "src": "34504:13:8"
                   },
                   "variableNames": [
                     {
                       "name": "diff",
                       "nodeType": "YulIdentifier",
-                      "src": "33814:4:8"
+                      "src": "34496:4:8"
                     }
                   ]
                 }
@@ -23966,13 +25650,13 @@
               {
                 "name": "x",
                 "nodeType": "YulTypedName",
-                "src": "33675:1:8",
+                "src": "34357:1:8",
                 "type": ""
               },
               {
                 "name": "y",
                 "nodeType": "YulTypedName",
-                "src": "33678:1:8",
+                "src": "34360:1:8",
                 "type": ""
               }
             ],
@@ -23980,24 +25664,24 @@
               {
                 "name": "diff",
                 "nodeType": "YulTypedName",
-                "src": "33684:4:8",
+                "src": "34366:4:8",
                 "type": ""
               }
             ],
-            "src": "33646:195:8"
+            "src": "34328:195:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "33899:205:8",
+              "src": "34581:205:8",
               "statements": [
                 {
                   "nodeType": "YulVariableDeclaration",
-                  "src": "33909:10:8",
+                  "src": "34591:10:8",
                   "value": {
                     "kind": "number",
                     "nodeType": "YulLiteral",
-                    "src": "33918:1:8",
+                    "src": "34600:1:8",
                     "type": "",
                     "value": "0"
                   },
@@ -24005,7 +25689,7 @@
                     {
                       "name": "i",
                       "nodeType": "YulTypedName",
-                      "src": "33913:1:8",
+                      "src": "34595:1:8",
                       "type": ""
                     }
                   ]
@@ -24013,7 +25697,7 @@
                 {
                   "body": {
                     "nodeType": "YulBlock",
-                    "src": "33978:63:8",
+                    "src": "34660:63:8",
                     "statements": [
                       {
                         "expression": {
@@ -24023,21 +25707,21 @@
                                 {
                                   "name": "dst",
                                   "nodeType": "YulIdentifier",
-                                  "src": "34003:3:8"
+                                  "src": "34685:3:8"
                                 },
                                 {
                                   "name": "i",
                                   "nodeType": "YulIdentifier",
-                                  "src": "34008:1:8"
+                                  "src": "34690:1:8"
                                 }
                               ],
                               "functionName": {
                                 "name": "add",
                                 "nodeType": "YulIdentifier",
-                                "src": "33999:3:8"
+                                "src": "34681:3:8"
                               },
                               "nodeType": "YulFunctionCall",
-                              "src": "33999:11:8"
+                              "src": "34681:11:8"
                             },
                             {
                               "arguments": [
@@ -24046,42 +25730,42 @@
                                     {
                                       "name": "src",
                                       "nodeType": "YulIdentifier",
-                                      "src": "34022:3:8"
+                                      "src": "34704:3:8"
                                     },
                                     {
                                       "name": "i",
                                       "nodeType": "YulIdentifier",
-                                      "src": "34027:1:8"
+                                      "src": "34709:1:8"
                                     }
                                   ],
                                   "functionName": {
                                     "name": "add",
                                     "nodeType": "YulIdentifier",
-                                    "src": "34018:3:8"
+                                    "src": "34700:3:8"
                                   },
                                   "nodeType": "YulFunctionCall",
-                                  "src": "34018:11:8"
+                                  "src": "34700:11:8"
                                 }
                               ],
                               "functionName": {
                                 "name": "mload",
                                 "nodeType": "YulIdentifier",
-                                "src": "34012:5:8"
+                                "src": "34694:5:8"
                               },
                               "nodeType": "YulFunctionCall",
-                              "src": "34012:18:8"
+                              "src": "34694:18:8"
                             }
                           ],
                           "functionName": {
                             "name": "mstore",
                             "nodeType": "YulIdentifier",
-                            "src": "33992:6:8"
+                            "src": "34674:6:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "33992:39:8"
+                          "src": "34674:39:8"
                         },
                         "nodeType": "YulExpressionStatement",
-                        "src": "33992:39:8"
+                        "src": "34674:39:8"
                       }
                     ]
                   },
@@ -24090,41 +25774,41 @@
                       {
                         "name": "i",
                         "nodeType": "YulIdentifier",
-                        "src": "33939:1:8"
+                        "src": "34621:1:8"
                       },
                       {
                         "name": "length",
                         "nodeType": "YulIdentifier",
-                        "src": "33942:6:8"
+                        "src": "34624:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "lt",
                       "nodeType": "YulIdentifier",
-                      "src": "33936:2:8"
+                      "src": "34618:2:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "33936:13:8"
+                    "src": "34618:13:8"
                   },
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                   "post": {
                     "nodeType": "YulBlock",
-                    "src": "33950:19:8",
+                    "src": "34632:19:8",
                     "statements": [
                       {
                         "nodeType": "YulAssignment",
-                        "src": "33952:15:8",
+                        "src": "34634:15:8",
                         "value": {
                           "arguments": [
                             {
                               "name": "i",
                               "nodeType": "YulIdentifier",
-                              "src": "33961:1:8"
+                              "src": "34643:1:8"
                             },
                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
-                              "src": "33964:2:8",
+                              "src": "34646:2:8",
                               "type": "",
                               "value": "32"
                             }
@@ -24132,16 +25816,16 @@
                           "functionName": {
                             "name": "add",
                             "nodeType": "YulIdentifier",
-                            "src": "33957:3:8"
+                            "src": "34639:3:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "33957:10:8"
+                          "src": "34639:10:8"
                         },
                         "variableNames": [
                           {
                             "name": "i",
                             "nodeType": "YulIdentifier",
-                            "src": "33952:1:8"
+                            "src": "34634:1:8"
                           }
                         ]
                       }
@@ -24149,15 +25833,15 @@
                   },
                   "pre": {
                     "nodeType": "YulBlock",
-                    "src": "33932:3:8",
+                    "src": "34614:3:8",
                     "statements": []
                   },
-                  "src": "33928:113:8"
+                  "src": "34610:113:8"
                 },
                 {
                   "body": {
                     "nodeType": "YulBlock",
-                    "src": "34067:31:8",
+                    "src": "34749:31:8",
                     "statements": [
                       {
                         "expression": {
@@ -24167,26 +25851,26 @@
                                 {
                                   "name": "dst",
                                   "nodeType": "YulIdentifier",
-                                  "src": "34080:3:8"
+                                  "src": "34762:3:8"
                                 },
                                 {
                                   "name": "length",
                                   "nodeType": "YulIdentifier",
-                                  "src": "34085:6:8"
+                                  "src": "34767:6:8"
                                 }
                               ],
                               "functionName": {
                                 "name": "add",
                                 "nodeType": "YulIdentifier",
-                                "src": "34076:3:8"
+                                "src": "34758:3:8"
                               },
                               "nodeType": "YulFunctionCall",
-                              "src": "34076:16:8"
+                              "src": "34758:16:8"
                             },
                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
-                              "src": "34094:1:8",
+                              "src": "34776:1:8",
                               "type": "",
                               "value": "0"
                             }
@@ -24194,13 +25878,13 @@
                           "functionName": {
                             "name": "mstore",
                             "nodeType": "YulIdentifier",
-                            "src": "34069:6:8"
+                            "src": "34751:6:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "34069:27:8"
+                          "src": "34751:27:8"
                         },
                         "nodeType": "YulExpressionStatement",
-                        "src": "34069:27:8"
+                        "src": "34751:27:8"
                       }
                     ]
                   },
@@ -24209,24 +25893,24 @@
                       {
                         "name": "i",
                         "nodeType": "YulIdentifier",
-                        "src": "34056:1:8"
+                        "src": "34738:1:8"
                       },
                       {
                         "name": "length",
                         "nodeType": "YulIdentifier",
-                        "src": "34059:6:8"
+                        "src": "34741:6:8"
                       }
                     ],
                     "functionName": {
                       "name": "gt",
                       "nodeType": "YulIdentifier",
-                      "src": "34053:2:8"
+                      "src": "34735:2:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "34053:13:8"
+                    "src": "34735:13:8"
                   },
                   "nodeType": "YulIf",
-                  "src": "34050:2:8"
+                  "src": "34732:2:8"
                 }
               ]
             },
@@ -24236,38 +25920,38 @@
               {
                 "name": "src",
                 "nodeType": "YulTypedName",
-                "src": "33877:3:8",
+                "src": "34559:3:8",
                 "type": ""
               },
               {
                 "name": "dst",
                 "nodeType": "YulTypedName",
-                "src": "33882:3:8",
+                "src": "34564:3:8",
                 "type": ""
               },
               {
                 "name": "length",
                 "nodeType": "YulTypedName",
-                "src": "33887:6:8",
+                "src": "34569:6:8",
                 "type": ""
               }
             ],
-            "src": "33846:258:8"
+            "src": "34528:258:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "34156:299:8",
+              "src": "34838:299:8",
               "statements": [
                 {
                   "nodeType": "YulVariableDeclaration",
-                  "src": "34166:58:8",
+                  "src": "34848:58:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "memPtr",
                         "nodeType": "YulIdentifier",
-                        "src": "34188:6:8"
+                        "src": "34870:6:8"
                       },
                       {
                         "arguments": [
@@ -24276,12 +25960,12 @@
                               {
                                 "name": "size",
                                 "nodeType": "YulIdentifier",
-                                "src": "34204:4:8"
+                                "src": "34886:4:8"
                               },
                               {
                                 "kind": "number",
                                 "nodeType": "YulLiteral",
-                                "src": "34210:2:8",
+                                "src": "34892:2:8",
                                 "type": "",
                                 "value": "31"
                               }
@@ -24289,17 +25973,17 @@
                             "functionName": {
                               "name": "add",
                               "nodeType": "YulIdentifier",
-                              "src": "34200:3:8"
+                              "src": "34882:3:8"
                             },
                             "nodeType": "YulFunctionCall",
-                            "src": "34200:13:8"
+                            "src": "34882:13:8"
                           },
                           {
                             "arguments": [
                               {
                                 "kind": "number",
                                 "nodeType": "YulLiteral",
-                                "src": "34219:2:8",
+                                "src": "34901:2:8",
                                 "type": "",
                                 "value": "31"
                               }
@@ -24307,34 +25991,34 @@
                             "functionName": {
                               "name": "not",
                               "nodeType": "YulIdentifier",
-                              "src": "34215:3:8"
+                              "src": "34897:3:8"
                             },
                             "nodeType": "YulFunctionCall",
-                            "src": "34215:7:8"
+                            "src": "34897:7:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "34196:3:8"
+                          "src": "34878:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "34196:27:8"
+                        "src": "34878:27:8"
                       }
                     ],
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "34184:3:8"
+                      "src": "34866:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "34184:40:8"
+                    "src": "34866:40:8"
                   },
                   "variables": [
                     {
                       "name": "newFreePtr",
                       "nodeType": "YulTypedName",
-                      "src": "34170:10:8",
+                      "src": "34852:10:8",
                       "type": ""
                     }
                   ]
@@ -24342,7 +26026,7 @@
                 {
                   "body": {
                     "nodeType": "YulBlock",
-                    "src": "34307:111:8",
+                    "src": "34989:111:8",
                     "statements": [
                       {
                         "expression": {
@@ -24350,7 +26034,7 @@
                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
-                              "src": "34328:1:8",
+                              "src": "35010:1:8",
                               "type": "",
                               "value": "0"
                             },
@@ -24359,14 +26043,14 @@
                                 {
                                   "kind": "number",
                                   "nodeType": "YulLiteral",
-                                  "src": "34335:3:8",
+                                  "src": "35017:3:8",
                                   "type": "",
                                   "value": "224"
                                 },
                                 {
                                   "kind": "number",
                                   "nodeType": "YulLiteral",
-                                  "src": "34340:10:8",
+                                  "src": "35022:10:8",
                                   "type": "",
                                   "value": "0x4e487b71"
                                 }
@@ -24374,22 +26058,22 @@
                               "functionName": {
                                 "name": "shl",
                                 "nodeType": "YulIdentifier",
-                                "src": "34331:3:8"
+                                "src": "35013:3:8"
                               },
                               "nodeType": "YulFunctionCall",
-                              "src": "34331:20:8"
+                              "src": "35013:20:8"
                             }
                           ],
                           "functionName": {
                             "name": "mstore",
                             "nodeType": "YulIdentifier",
-                            "src": "34321:6:8"
+                            "src": "35003:6:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "34321:31:8"
+                          "src": "35003:31:8"
                         },
                         "nodeType": "YulExpressionStatement",
-                        "src": "34321:31:8"
+                        "src": "35003:31:8"
                       },
                       {
                         "expression": {
@@ -24397,14 +26081,14 @@
                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
-                              "src": "34372:1:8",
+                              "src": "35054:1:8",
                               "type": "",
                               "value": "4"
                             },
                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
-                              "src": "34375:4:8",
+                              "src": "35057:4:8",
                               "type": "",
                               "value": "0x41"
                             }
@@ -24412,13 +26096,13 @@
                           "functionName": {
                             "name": "mstore",
                             "nodeType": "YulIdentifier",
-                            "src": "34365:6:8"
+                            "src": "35047:6:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "34365:15:8"
+                          "src": "35047:15:8"
                         },
                         "nodeType": "YulExpressionStatement",
-                        "src": "34365:15:8"
+                        "src": "35047:15:8"
                       },
                       {
                         "expression": {
@@ -24426,14 +26110,14 @@
                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
-                              "src": "34400:1:8",
+                              "src": "35082:1:8",
                               "type": "",
                               "value": "0"
                             },
                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
-                              "src": "34403:4:8",
+                              "src": "35085:4:8",
                               "type": "",
                               "value": "0x24"
                             }
@@ -24441,13 +26125,13 @@
                           "functionName": {
                             "name": "revert",
                             "nodeType": "YulIdentifier",
-                            "src": "34393:6:8"
+                            "src": "35075:6:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "34393:15:8"
+                          "src": "35075:15:8"
                         },
                         "nodeType": "YulExpressionStatement",
-                        "src": "34393:15:8"
+                        "src": "35075:15:8"
                       }
                     ]
                   },
@@ -24458,12 +26142,12 @@
                           {
                             "name": "newFreePtr",
                             "nodeType": "YulIdentifier",
-                            "src": "34242:10:8"
+                            "src": "34924:10:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "34254:18:8",
+                            "src": "34936:18:8",
                             "type": "",
                             "value": "0xffffffffffffffff"
                           }
@@ -24471,43 +26155,43 @@
                         "functionName": {
                           "name": "gt",
                           "nodeType": "YulIdentifier",
-                          "src": "34239:2:8"
+                          "src": "34921:2:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "34239:34:8"
+                        "src": "34921:34:8"
                       },
                       {
                         "arguments": [
                           {
                             "name": "newFreePtr",
                             "nodeType": "YulIdentifier",
-                            "src": "34278:10:8"
+                            "src": "34960:10:8"
                           },
                           {
                             "name": "memPtr",
                             "nodeType": "YulIdentifier",
-                            "src": "34290:6:8"
+                            "src": "34972:6:8"
                           }
                         ],
                         "functionName": {
                           "name": "lt",
                           "nodeType": "YulIdentifier",
-                          "src": "34275:2:8"
+                          "src": "34957:2:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "34275:22:8"
+                        "src": "34957:22:8"
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                     "functionName": {
                       "name": "or",
                       "nodeType": "YulIdentifier",
-                      "src": "34236:2:8"
+                      "src": "34918:2:8"
                     },
                     "nodeType": "YulFunctionCall",
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+                    "src": "34918:62:8"
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                   "expression": {
@@ -24515,26 +26199,26 @@
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "34434:2:8",
+                        "src": "35116:2:8",
                         "type": "",
                         "value": "64"
                       },
                       {
                         "name": "newFreePtr",
                         "nodeType": "YulIdentifier",
-                        "src": "34438:10:8"
+                        "src": "35120:10:8"
                       }
                     ],
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "34427:6:8"
+                      "src": "35109:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "34427:22:8"
+                    "src": "35109:22:8"
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-                  "src": "34427:22:8"
+                  "src": "35109:22:8"
                 }
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@@ -24544,30 +26228,30 @@
               {
                 "name": "memPtr",
                 "nodeType": "YulTypedName",
-                "src": "34138:6:8",
+                "src": "34820:6:8",
                 "type": ""
               },
               {
                 "name": "size",
                 "nodeType": "YulTypedName",
-                "src": "34146:4:8",
+                "src": "34828:4:8",
                 "type": ""
               }
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-            "src": "34109:346:8"
+            "src": "34791:346:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "34506:155:8",
+              "src": "35188:155:8",
               "statements": [
                 {
                   "nodeType": "YulVariableDeclaration",
-                  "src": "34516:20:8",
+                  "src": "35198:20:8",
                   "value": {
                     "kind": "number",
                     "nodeType": "YulLiteral",
-                    "src": "34526:10:8",
+                    "src": "35208:10:8",
                     "type": "",
                     "value": "0xffffffff"
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@@ -24575,40 +26259,40 @@
                     {
                       "name": "_1",
                       "nodeType": "YulTypedName",
-                      "src": "34520:2:8",
+                      "src": "35202:2:8",
                       "type": ""
                     }
                   ]
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                 {
                   "nodeType": "YulVariableDeclaration",
-                  "src": "34545:29:8",
+                  "src": "35227:29:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "value",
                         "nodeType": "YulIdentifier",
-                        "src": "34564:5:8"
+                        "src": "35246:5:8"
                       },
                       {
                         "name": "_1",
                         "nodeType": "YulIdentifier",
-                        "src": "34571:2:8"
+                        "src": "35253:2:8"
                       }
                     ],
                     "functionName": {
                       "name": "and",
                       "nodeType": "YulIdentifier",
-                      "src": "34560:3:8"
+                      "src": "35242:3:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "34560:14:8"
+                    "src": "35242:14:8"
                   },
                   "variables": [
                     {
                       "name": "value_1",
                       "nodeType": "YulTypedName",
-                      "src": "34549:7:8",
+                      "src": "35231:7:8",
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                     }
                   ]
@@ -24616,7 +26300,7 @@
                 {
                   "body": {
                     "nodeType": "YulBlock",
-                    "src": "34602:22:8",
+                    "src": "35284:22:8",
                     "statements": [
                       {
                         "expression": {
@@ -24624,13 +26308,13 @@
                           "functionName": {
                             "name": "panic_error_0x11",
                             "nodeType": "YulIdentifier",
-                            "src": "34604:16:8"
+                            "src": "35286:16:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "34604:18:8"
+                          "src": "35286:18:8"
                         },
                         "nodeType": "YulExpressionStatement",
-                        "src": "34604:18:8"
+                        "src": "35286:18:8"
                       }
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                   },
@@ -24639,39 +26323,39 @@
                       {
                         "name": "value_1",
                         "nodeType": "YulIdentifier",
-                        "src": "34589:7:8"
+                        "src": "35271:7:8"
                       },
                       {
                         "name": "_1",
                         "nodeType": "YulIdentifier",
-                        "src": "34598:2:8"
+                        "src": "35280:2:8"
                       }
                     ],
                     "functionName": {
                       "name": "eq",
                       "nodeType": "YulIdentifier",
-                      "src": "34586:2:8"
+                      "src": "35268:2:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "34586:15:8"
+                    "src": "35268:15:8"
                   },
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-                  "src": "34583:2:8"
+                  "src": "35265:2:8"
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                 {
                   "nodeType": "YulAssignment",
-                  "src": "34633:22:8",
+                  "src": "35315:22:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "value_1",
                         "nodeType": "YulIdentifier",
-                        "src": "34644:7:8"
+                        "src": "35326:7:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "34653:1:8",
+                        "src": "35335:1:8",
                         "type": "",
                         "value": "1"
                       }
@@ -24679,16 +26363,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "34640:3:8"
+                      "src": "35322:3:8"
                     },
                     "nodeType": "YulFunctionCall",
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+                    "src": "35322:15:8"
                   },
                   "variableNames": [
                     {
                       "name": "ret",
                       "nodeType": "YulIdentifier",
-                      "src": "34633:3:8"
+                      "src": "35315:3:8"
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@@ -24700,7 +26384,7 @@
               {
                 "name": "value",
                 "nodeType": "YulTypedName",
-                "src": "34488:5:8",
+                "src": "35170:5:8",
                 "type": ""
               }
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@@ -24708,31 +26392,31 @@
               {
                 "name": "ret",
                 "nodeType": "YulTypedName",
-                "src": "34498:3:8",
+                "src": "35180:3:8",
                 "type": ""
               }
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-            "src": "34460:201:8"
+            "src": "35142:201:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "34711:130:8",
+              "src": "35393:130:8",
               "statements": [
                 {
                   "nodeType": "YulVariableDeclaration",
-                  "src": "34721:31:8",
+                  "src": "35403:31:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "value",
                         "nodeType": "YulIdentifier",
-                        "src": "34740:5:8"
+                        "src": "35422:5:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "34747:4:8",
+                        "src": "35429:4:8",
                         "type": "",
                         "value": "0xff"
                       }
@@ -24740,16 +26424,16 @@
                     "functionName": {
                       "name": "and",
                       "nodeType": "YulIdentifier",
-                      "src": "34736:3:8"
+                      "src": "35418:3:8"
                     },
                     "nodeType": "YulFunctionCall",
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+                    "src": "35418:16:8"
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                   "variables": [
                     {
                       "name": "value_1",
                       "nodeType": "YulTypedName",
-                      "src": "34725:7:8",
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@@ -24757,7 +26441,7 @@
                 {
                   "body": {
                     "nodeType": "YulBlock",
-                    "src": "34782:22:8",
+                    "src": "35464:22:8",
                     "statements": [
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                         "expression": {
@@ -24765,13 +26449,13 @@
                           "functionName": {
                             "name": "panic_error_0x11",
                             "nodeType": "YulIdentifier",
-                            "src": "34784:16:8"
+                            "src": "35466:16:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "34784:18:8"
+                          "src": "35466:18:8"
                         },
                         "nodeType": "YulExpressionStatement",
-                        "src": "34784:18:8"
+                        "src": "35466:18:8"
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@@ -24780,12 +26464,12 @@
                       {
                         "name": "value_1",
                         "nodeType": "YulIdentifier",
-                        "src": "34767:7:8"
+                        "src": "35449:7:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "34776:4:8",
+                        "src": "35458:4:8",
                         "type": "",
                         "value": "0xff"
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@@ -24793,28 +26477,28 @@
                     "functionName": {
                       "name": "eq",
                       "nodeType": "YulIdentifier",
-                      "src": "34764:2:8"
+                      "src": "35446:2:8"
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                   "nodeType": "YulAssignment",
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                   "value": {
                     "arguments": [
                       {
                         "name": "value_1",
                         "nodeType": "YulIdentifier",
-                        "src": "34824:7:8"
+                        "src": "35506:7:8"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "34833:1:8",
+                        "src": "35515:1:8",
                         "type": "",
                         "value": "1"
                       }
@@ -24822,16 +26506,16 @@
                     "functionName": {
                       "name": "add",
                       "nodeType": "YulIdentifier",
-                      "src": "34820:3:8"
+                      "src": "35502:3:8"
                     },
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                   "variableNames": [
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                       "name": "ret",
                       "nodeType": "YulIdentifier",
-                      "src": "34813:3:8"
+                      "src": "35495:3:8"
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@@ -24843,7 +26527,7 @@
               {
                 "name": "value",
                 "nodeType": "YulTypedName",
-                "src": "34693:5:8",
+                "src": "35375:5:8",
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@@ -24851,24 +26535,24 @@
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                 "name": "ret",
                 "nodeType": "YulTypedName",
-                "src": "34703:3:8",
+                "src": "35385:3:8",
                 "type": ""
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+            "src": "35348:175:8"
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           {
             "body": {
               "nodeType": "YulBlock",
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+              "src": "35565:146:8",
               "statements": [
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+                  "src": "35575:20:8",
                   "value": {
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                     "nodeType": "YulLiteral",
-                    "src": "34903:10:8",
+                    "src": "35585:10:8",
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                     "value": "0xffffffff"
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@@ -24876,40 +26560,40 @@
                     {
                       "name": "_1",
                       "nodeType": "YulTypedName",
-                      "src": "34897:2:8",
+                      "src": "35579:2:8",
                       "type": ""
                     }
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                 {
                   "nodeType": "YulVariableDeclaration",
-                  "src": "34922:21:8",
+                  "src": "35604:21:8",
                   "value": {
                     "arguments": [
                       {
                         "name": "y",
                         "nodeType": "YulIdentifier",
-                        "src": "34937:1:8"
+                        "src": "35619:1:8"
                       },
                       {
                         "name": "_1",
                         "nodeType": "YulIdentifier",
-                        "src": "34940:2:8"
+                        "src": "35622:2:8"
                       }
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                     "functionName": {
                       "name": "and",
                       "nodeType": "YulIdentifier",
-                      "src": "34933:3:8"
+                      "src": "35615:3:8"
                     },
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                   "variables": [
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                       "nodeType": "YulTypedName",
-                      "src": "34926:3:8",
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@@ -24917,7 +26601,7 @@
                 {
                   "body": {
                     "nodeType": "YulBlock",
-                    "src": "34967:22:8",
+                    "src": "35649:22:8",
                     "statements": [
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                         "expression": {
@@ -24925,13 +26609,13 @@
                           "functionName": {
                             "name": "panic_error_0x12",
                             "nodeType": "YulIdentifier",
-                            "src": "34969:16:8"
+                            "src": "35651:16:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "34969:18:8"
+                          "src": "35651:18:8"
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-                        "src": "34969:18:8"
+                        "src": "35651:18:8"
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@@ -24940,23 +26624,23 @@
                       {
                         "name": "y_1",
                         "nodeType": "YulIdentifier",
-                        "src": "34962:3:8"
+                        "src": "35644:3:8"
                       }
                     ],
                     "functionName": {
                       "name": "iszero",
                       "nodeType": "YulIdentifier",
-                      "src": "34955:6:8"
+                      "src": "35637:6:8"
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+                  "src": "35680:25:8",
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                       {
@@ -24964,41 +26648,41 @@
                           {
                             "name": "x",
                             "nodeType": "YulIdentifier",
-                            "src": "35011:1:8"
+                            "src": "35693:1:8"
                           },
                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "35014:2:8"
+                            "src": "35696:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "and",
                           "nodeType": "YulIdentifier",
-                          "src": "35007:3:8"
+                          "src": "35689:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "35007:10:8"
+                        "src": "35689:10:8"
                       },
                       {
                         "name": "y_1",
                         "nodeType": "YulIdentifier",
-                        "src": "35019:3:8"
+                        "src": "35701:3:8"
                       }
                     ],
                     "functionName": {
                       "name": "mod",
                       "nodeType": "YulIdentifier",
-                      "src": "35003:3:8"
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                   "variableNames": [
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                       "name": "r",
                       "nodeType": "YulIdentifier",
-                      "src": "34998:1:8"
+                      "src": "35680:1:8"
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@@ -25010,13 +26694,13 @@
               {
                 "name": "x",
                 "nodeType": "YulTypedName",
-                "src": "34868:1:8",
+                "src": "35550:1:8",
                 "type": ""
               },
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                 "name": "y",
                 "nodeType": "YulTypedName",
-                "src": "34871:1:8",
+                "src": "35553:1:8",
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@@ -25024,16 +26708,16 @@
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                 "name": "r",
                 "nodeType": "YulTypedName",
-                "src": "34877:1:8",
+                "src": "35559:1:8",
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           {
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-              "src": "35066:95:8",
+              "src": "35748:95:8",
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                   "expression": {
@@ -25041,7 +26725,7 @@
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "35083:1:8",
+                        "src": "35765:1:8",
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                       },
@@ -25050,14 +26734,14 @@
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "35090:3:8",
+                            "src": "35772:3:8",
                             "type": "",
                             "value": "224"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "35095:10:8",
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                             "type": "",
                             "value": "0x4e487b71"
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@@ -25065,22 +26749,22 @@
                         "functionName": {
                           "name": "shl",
                           "nodeType": "YulIdentifier",
-                          "src": "35086:3:8"
+                          "src": "35768:3:8"
                         },
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+                        "src": "35768:20:8"
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                       "name": "mstore",
                       "nodeType": "YulIdentifier",
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@@ -25088,14 +26772,14 @@
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "35123:1:8",
+                        "src": "35805:1:8",
                         "type": "",
                         "value": "4"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "35126:4:8",
+                        "src": "35808:4:8",
                         "type": "",
                         "value": "0x11"
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@@ -25103,13 +26787,13 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "35116:6:8"
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@@ -25117,14 +26801,14 @@
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "35147:1:8",
+                        "src": "35829:1:8",
                         "type": "",
                         "value": "0"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "35150:4:8",
+                        "src": "35832:4:8",
                         "type": "",
                         "value": "0x24"
                       }
@@ -25132,24 +26816,24 @@
                     "functionName": {
                       "name": "revert",
                       "nodeType": "YulIdentifier",
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             "nodeType": "YulFunctionDefinition",
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               "nodeType": "YulBlock",
-              "src": "35198:95:8",
+              "src": "35880:95:8",
               "statements": [
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                   "expression": {
@@ -25157,7 +26841,7 @@
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "35215:1:8",
+                        "src": "35897:1:8",
                         "type": "",
                         "value": "0"
                       },
@@ -25166,14 +26850,14 @@
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "35222:3:8",
+                            "src": "35904:3:8",
                             "type": "",
                             "value": "224"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "35227:10:8",
+                            "src": "35909:10:8",
                             "type": "",
                             "value": "0x4e487b71"
                           }
@@ -25181,22 +26865,22 @@
                         "functionName": {
                           "name": "shl",
                           "nodeType": "YulIdentifier",
-                          "src": "35218:3:8"
+                          "src": "35900:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "35218:20:8"
+                        "src": "35900:20:8"
                       }
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                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
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@@ -25204,14 +26888,14 @@
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "35255:1:8",
+                        "src": "35937:1:8",
                         "type": "",
                         "value": "4"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "35258:4:8",
+                        "src": "35940:4:8",
                         "type": "",
                         "value": "0x12"
                       }
@@ -25219,13 +26903,13 @@
                     "functionName": {
                       "name": "mstore",
                       "nodeType": "YulIdentifier",
-                      "src": "35248:6:8"
+                      "src": "35930:6:8"
                     },
                     "nodeType": "YulFunctionCall",
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+                    "src": "35930:15:8"
                   },
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+                  "src": "35930:15:8"
                 },
                 {
                   "expression": {
@@ -25233,14 +26917,14 @@
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "35279:1:8",
+                        "src": "35961:1:8",
                         "type": "",
                         "value": "0"
                       },
                       {
                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "35282:4:8",
+                        "src": "35964:4:8",
                         "type": "",
                         "value": "0x24"
                       }
@@ -25248,29 +26932,29 @@
                     "functionName": {
                       "name": "revert",
                       "nodeType": "YulIdentifier",
-                      "src": "35272:6:8"
+                      "src": "35954:6:8"
                     },
                     "nodeType": "YulFunctionCall",
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+                    "src": "35954:15:8"
                   },
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+                  "src": "35954:15:8"
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             "nodeType": "YulFunctionDefinition",
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+            "src": "35848:127:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
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+              "src": "36023:142:8",
               "statements": [
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                   "body": {
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-                    "src": "35386:91:8",
+                    "src": "36068:91:8",
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                       {
                         "expression": {
@@ -25278,17 +26962,17 @@
                             {
                               "name": "sig",
                               "nodeType": "YulIdentifier",
-                              "src": "35415:3:8"
+                              "src": "36097:3:8"
                             },
                             {
                               "name": "sig",
                               "nodeType": "YulIdentifier",
-                              "src": "35420:3:8"
+                              "src": "36102:3:8"
                             },
                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
-                              "src": "35425:1:8",
+                              "src": "36107:1:8",
                               "type": "",
                               "value": "4"
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@@ -25296,23 +26980,23 @@
                           "functionName": {
                             "name": "returndatacopy",
                             "nodeType": "YulIdentifier",
-                            "src": "35400:14:8"
+                            "src": "36082:14:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "35400:27:8"
+                          "src": "36082:27:8"
                         },
                         "nodeType": "YulExpressionStatement",
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+                        "src": "36082:27:8"
                       },
                       {
                         "nodeType": "YulAssignment",
-                        "src": "35440:27:8",
+                        "src": "36122:27:8",
                         "value": {
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                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
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                               "type": "",
                               "value": "224"
                             },
@@ -25321,31 +27005,31 @@
                                 {
                                   "name": "sig",
                                   "nodeType": "YulIdentifier",
-                                  "src": "35462:3:8"
+                                  "src": "36144:3:8"
                                 }
                               ],
                               "functionName": {
                                 "name": "mload",
                                 "nodeType": "YulIdentifier",
-                                "src": "35456:5:8"
+                                "src": "36138:5:8"
                               },
                               "nodeType": "YulFunctionCall",
-                              "src": "35456:10:8"
+                              "src": "36138:10:8"
                             }
                           ],
                           "functionName": {
                             "name": "shr",
                             "nodeType": "YulIdentifier",
-                            "src": "35447:3:8"
+                            "src": "36129:3:8"
                           },
                           "nodeType": "YulFunctionCall",
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+                          "src": "36129:20:8"
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                         "variableNames": [
                           {
                             "name": "sig",
                             "nodeType": "YulIdentifier",
-                            "src": "35440:3:8"
+                            "src": "36122:3:8"
                           }
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@@ -25358,15 +27042,15 @@
                         "functionName": {
                           "name": "returndatasize",
                           "nodeType": "YulIdentifier",
-                          "src": "35357:14:8"
+                          "src": "36039:14:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "35357:16:8"
+                        "src": "36039:16:8"
                       },
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                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "35375:1:8",
+                        "src": "36057:1:8",
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                         "value": "3"
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@@ -25374,13 +27058,13 @@
                     "functionName": {
                       "name": "gt",
                       "nodeType": "YulIdentifier",
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+                      "src": "36036:2:8"
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@@ -25390,25 +27074,25 @@
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                 "nodeType": "YulTypedName",
-                "src": "35333:3:8",
+                "src": "36015:3:8",
                 "type": ""
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+                    "src": "36257:9:8",
                     "statements": [
                       {
                         "nodeType": "YulLeave",
-                        "src": "35577:5:8"
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@@ -25419,15 +27103,15 @@
                         "functionName": {
                           "name": "returndatasize",
                           "nodeType": "YulIdentifier",
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+                          "src": "36233:14:8"
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+                        "src": "36233:16:8"
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                         "kind": "number",
                         "nodeType": "YulLiteral",
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@@ -25435,23 +27119,23 @@
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                       "name": "lt",
                       "nodeType": "YulIdentifier",
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                         "kind": "number",
                         "nodeType": "YulLiteral",
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@@ -25459,29 +27143,29 @@
                     "functionName": {
                       "name": "mload",
                       "nodeType": "YulIdentifier",
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                       "name": "data",
                       "nodeType": "YulTypedName",
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                     }
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                   "nodeType": "YulVariableDeclaration",
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                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "35637:1:8",
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                         "value": "3"
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@@ -25489,16 +27173,16 @@
                     "functionName": {
                       "name": "not",
                       "nodeType": "YulIdentifier",
-                      "src": "35633:3:8"
+                      "src": "36315:3:8"
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                       "name": "_1",
                       "nodeType": "YulTypedName",
-                      "src": "35627:2:8",
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                     }
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@@ -25509,12 +27193,12 @@
                       {
                         "name": "data",
                         "nodeType": "YulIdentifier",
-                        "src": "35663:4:8"
+                        "src": "36345:4:8"
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                         "kind": "number",
                         "nodeType": "YulLiteral",
-                        "src": "35669:1:8",
+                        "src": "36351:1:8",
                         "type": "",
                         "value": "4"
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@@ -25525,94 +27209,94 @@
                             "functionName": {
                               "name": "returndatasize",
                               "nodeType": "YulIdentifier",
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+                              "src": "36358:14:8"
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                             "nodeType": "YulFunctionCall",
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+                            "src": "36358:16:8"
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                           {
                             "name": "_1",
                             "nodeType": "YulIdentifier",
-                            "src": "35694:2:8"
+                            "src": "36376:2:8"
                           }
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                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "35672:3:8"
+                          "src": "36354:3:8"
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                         "nodeType": "YulFunctionCall",
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+                        "src": "36354:25:8"
                       }
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                       "name": "returndatacopy",
                       "nodeType": "YulIdentifier",
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                         "name": "data",
                         "nodeType": "YulIdentifier",
-                        "src": "35727:4:8"
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                       "name": "mload",
                       "nodeType": "YulIdentifier",
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                       "name": "offset",
                       "nodeType": "YulTypedName",
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-                  "src": "35741:26:8",
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                       "name": "returndatasize",
                       "nodeType": "YulIdentifier",
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                       "nodeType": "YulTypedName",
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@@ -25620,7 +27304,7 @@
                     {
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                       "nodeType": "YulTypedName",
-                      "src": "35780:2:8",
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@@ -25628,11 +27312,11 @@
                 {
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+                    "src": "36544:9:8",
                     "statements": [
                       {
                         "nodeType": "YulLeave",
-                        "src": "35864:5:8"
+                        "src": "36546:5:8"
                       }
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@@ -25643,21 +27327,21 @@
                           {
                             "name": "offset",
                             "nodeType": "YulIdentifier",
-                            "src": "35822:6:8"
+                            "src": "36504:6:8"
                           },
                           {
                             "name": "_3",
                             "nodeType": "YulIdentifier",
-                            "src": "35830:2:8"
+                            "src": "36512:2:8"
                           }
                         ],
                         "functionName": {
                           "name": "gt",
                           "nodeType": "YulIdentifier",
-                          "src": "35819:2:8"
+                          "src": "36501:2:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "35819:14:8"
+                        "src": "36501:14:8"
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@@ -25666,12 +27350,12 @@
                               {
                                 "name": "offset",
                                 "nodeType": "YulIdentifier",
-                                "src": "35842:6:8"
+                                "src": "36524:6:8"
                               },
                               {
                                 "kind": "number",
                                 "nodeType": "YulLiteral",
-                                "src": "35850:4:8",
+                                "src": "36532:4:8",
                                 "type": "",
                                 "value": "0x24"
                               }
@@ -25679,94 +27363,94 @@
                             "functionName": {
                               "name": "add",
                               "nodeType": "YulIdentifier",
-                              "src": "35838:3:8"
+                              "src": "36520:3:8"
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                             "nodeType": "YulFunctionCall",
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+                            "src": "36520:17:8"
                           },
                           {
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                             "nodeType": "YulIdentifier",
-                            "src": "35857:2:8"
+                            "src": "36539:2:8"
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                         "functionName": {
                           "name": "gt",
                           "nodeType": "YulIdentifier",
-                          "src": "35835:2:8"
+                          "src": "36517:2:8"
                         },
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                       "nodeType": "YulIdentifier",
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                         "name": "data",
                         "nodeType": "YulIdentifier",
-                        "src": "35895:4:8"
+                        "src": "36577:4:8"
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                         "nodeType": "YulIdentifier",
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                       "name": "add",
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                       "nodeType": "YulTypedName",
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                         "name": "msg",
                         "nodeType": "YulIdentifier",
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                       "name": "mload",
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                       "nodeType": "YulTypedName",
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@@ -25774,11 +27458,11 @@
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-                        "src": "35970:5:8"
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@@ -25787,33 +27471,33 @@
                       {
                         "name": "length",
                         "nodeType": "YulIdentifier",
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+                        "src": "36638:6:8"
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                         "nodeType": "YulIdentifier",
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-                        "src": "36061:5:8"
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@@ -25826,26 +27510,26 @@
                               {
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                                 "nodeType": "YulIdentifier",
-                                "src": "36000:3:8"
+                                "src": "36682:3:8"
                               },
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                                 "name": "length",
                                 "nodeType": "YulIdentifier",
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+                                "src": "36687:6:8"
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                             "functionName": {
                               "name": "add",
                               "nodeType": "YulIdentifier",
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+                              "src": "36678:3:8"
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                             "nodeType": "YulFunctionCall",
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                             "kind": "number",
                             "nodeType": "YulLiteral",
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@@ -25853,10 +27537,10 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
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+                          "src": "36674:3:8"
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@@ -25865,52 +27549,52 @@
                               {
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                                 "nodeType": "YulIdentifier",
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+                                "src": "36711:4:8"
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                                 "functionName": {
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                                   "nodeType": "YulIdentifier",
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+                                  "src": "36717:14:8"
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                               "name": "add",
                               "nodeType": "YulIdentifier",
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                             "nodeType": "YulIdentifier",
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+                            "src": "36736:2:8"
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                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "36021:3:8"
+                          "src": "36703:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "36021:36:8"
+                        "src": "36703:36:8"
                       }
                     ],
                     "functionName": {
                       "name": "gt",
                       "nodeType": "YulIdentifier",
-                      "src": "35989:2:8"
+                      "src": "36671:2:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "35989:69:8"
+                    "src": "36671:69:8"
                   },
                   "nodeType": "YulIf",
-                  "src": "35986:2:8"
+                  "src": "36668:2:8"
                 },
                 {
                   "expression": {
@@ -25918,7 +27602,7 @@
                       {
                         "name": "data",
                         "nodeType": "YulIdentifier",
-                        "src": "36097:4:8"
+                        "src": "36779:4:8"
                       },
                       {
                         "arguments": [
@@ -25927,26 +27611,26 @@
                               {
                                 "name": "offset",
                                 "nodeType": "YulIdentifier",
-                                "src": "36111:6:8"
+                                "src": "36793:6:8"
                               },
                               {
                                 "name": "length",
                                 "nodeType": "YulIdentifier",
-                                "src": "36119:6:8"
+                                "src": "36801:6:8"
                               }
                             ],
                             "functionName": {
                               "name": "add",
                               "nodeType": "YulIdentifier",
-                              "src": "36107:3:8"
+                              "src": "36789:3:8"
                             },
                             "nodeType": "YulFunctionCall",
-                            "src": "36107:19:8"
+                            "src": "36789:19:8"
                           },
                           {
                             "kind": "number",
                             "nodeType": "YulLiteral",
-                            "src": "36128:4:8",
+                            "src": "36810:4:8",
                             "type": "",
                             "value": "0x20"
                           }
@@ -25954,36 +27638,36 @@
                         "functionName": {
                           "name": "add",
                           "nodeType": "YulIdentifier",
-                          "src": "36103:3:8"
+                          "src": "36785:3:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "36103:30:8"
+                        "src": "36785:30:8"
                       }
                     ],
                     "functionName": {
                       "name": "finalize_allocation",
                       "nodeType": "YulIdentifier",
-                      "src": "36077:19:8"
+                      "src": "36759:19:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "36077:57:8"
+                    "src": "36759:57:8"
                   },
                   "nodeType": "YulExpressionStatement",
-                  "src": "36077:57:8"
+                  "src": "36759:57:8"
                 },
                 {
                   "nodeType": "YulAssignment",
-                  "src": "36143:10:8",
+                  "src": "36825:10:8",
                   "value": {
                     "name": "msg",
                     "nodeType": "YulIdentifier",
-                    "src": "36150:3:8"
+                    "src": "36832:3:8"
                   },
                   "variableNames": [
                     {
                       "name": "ret",
                       "nodeType": "YulIdentifier",
-                      "src": "36143:3:8"
+                      "src": "36825:3:8"
                     }
                   ]
                 }
@@ -25995,21 +27679,21 @@
               {
                 "name": "ret",
                 "nodeType": "YulTypedName",
-                "src": "35527:3:8",
+                "src": "36209:3:8",
                 "type": ""
               }
             ],
-            "src": "35488:671:8"
+            "src": "36170:671:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "36209:86:8",
+              "src": "36891:86:8",
               "statements": [
                 {
                   "body": {
                     "nodeType": "YulBlock",
-                    "src": "36273:16:8",
+                    "src": "36955:16:8",
                     "statements": [
                       {
                         "expression": {
@@ -26017,14 +27701,14 @@
                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
-                              "src": "36282:1:8",
+                              "src": "36964:1:8",
                               "type": "",
                               "value": "0"
                             },
                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
-                              "src": "36285:1:8",
+                              "src": "36967:1:8",
                               "type": "",
                               "value": "0"
                             }
@@ -26032,13 +27716,13 @@
                           "functionName": {
                             "name": "revert",
                             "nodeType": "YulIdentifier",
-                            "src": "36275:6:8"
+                            "src": "36957:6:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "36275:12:8"
+                          "src": "36957:12:8"
                         },
                         "nodeType": "YulExpressionStatement",
-                        "src": "36275:12:8"
+                        "src": "36957:12:8"
                       }
                     ]
                   },
@@ -26049,14 +27733,14 @@
                           {
                             "name": "value",
                             "nodeType": "YulIdentifier",
-                            "src": "36232:5:8"
+                            "src": "36914:5:8"
                           },
                           {
                             "arguments": [
                               {
                                 "name": "value",
                                 "nodeType": "YulIdentifier",
-                                "src": "36243:5:8"
+                                "src": "36925:5:8"
                               },
                               {
                                 "arguments": [
@@ -26065,14 +27749,14 @@
                                       {
                                         "kind": "number",
                                         "nodeType": "YulLiteral",
-                                        "src": "36258:3:8",
+                                        "src": "36940:3:8",
                                         "type": "",
                                         "value": "160"
                                       },
                                       {
                                         "kind": "number",
                                         "nodeType": "YulLiteral",
-                                        "src": "36263:1:8",
+                                        "src": "36945:1:8",
                                         "type": "",
                                         "value": "1"
                                       }
@@ -26080,15 +27764,15 @@
                                     "functionName": {
                                       "name": "shl",
                                       "nodeType": "YulIdentifier",
-                                      "src": "36254:3:8"
+                                      "src": "36936:3:8"
                                     },
                                     "nodeType": "YulFunctionCall",
-                                    "src": "36254:11:8"
+                                    "src": "36936:11:8"
                                   },
                                   {
                                     "kind": "number",
                                     "nodeType": "YulLiteral",
-                                    "src": "36267:1:8",
+                                    "src": "36949:1:8",
                                     "type": "",
                                     "value": "1"
                                   }
@@ -26096,40 +27780,40 @@
                                 "functionName": {
                                   "name": "sub",
                                   "nodeType": "YulIdentifier",
-                                  "src": "36250:3:8"
+                                  "src": "36932:3:8"
                                 },
                                 "nodeType": "YulFunctionCall",
-                                "src": "36250:19:8"
+                                "src": "36932:19:8"
                               }
                             ],
                             "functionName": {
                               "name": "and",
                               "nodeType": "YulIdentifier",
-                              "src": "36239:3:8"
+                              "src": "36921:3:8"
                             },
                             "nodeType": "YulFunctionCall",
-                            "src": "36239:31:8"
+                            "src": "36921:31:8"
                           }
                         ],
                         "functionName": {
                           "name": "eq",
                           "nodeType": "YulIdentifier",
-                          "src": "36229:2:8"
+                          "src": "36911:2:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "36229:42:8"
+                        "src": "36911:42:8"
                       }
                     ],
                     "functionName": {
                       "name": "iszero",
                       "nodeType": "YulIdentifier",
-                      "src": "36222:6:8"
+                      "src": "36904:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "36222:50:8"
+                    "src": "36904:50:8"
                   },
                   "nodeType": "YulIf",
-                  "src": "36219:2:8"
+                  "src": "36901:2:8"
                 }
               ]
             },
@@ -26139,21 +27823,21 @@
               {
                 "name": "value",
                 "nodeType": "YulTypedName",
-                "src": "36198:5:8",
+                "src": "36880:5:8",
                 "type": ""
               }
             ],
-            "src": "36164:131:8"
+            "src": "36846:131:8"
           },
           {
             "body": {
               "nodeType": "YulBlock",
-              "src": "36344:87:8",
+              "src": "37026:87:8",
               "statements": [
                 {
                   "body": {
                     "nodeType": "YulBlock",
-                    "src": "36409:16:8",
+                    "src": "37091:16:8",
                     "statements": [
                       {
                         "expression": {
@@ -26161,14 +27845,14 @@
                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
-                              "src": "36418:1:8",
+                              "src": "37100:1:8",
                               "type": "",
                               "value": "0"
                             },
                             {
                               "kind": "number",
                               "nodeType": "YulLiteral",
-                              "src": "36421:1:8",
+                              "src": "37103:1:8",
                               "type": "",
                               "value": "0"
                             }
@@ -26176,13 +27860,13 @@
                           "functionName": {
                             "name": "revert",
                             "nodeType": "YulIdentifier",
-                            "src": "36411:6:8"
+                            "src": "37093:6:8"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "36411:12:8"
+                          "src": "37093:12:8"
                         },
                         "nodeType": "YulExpressionStatement",
-                        "src": "36411:12:8"
+                        "src": "37093:12:8"
                       }
                     ]
                   },
@@ -26193,28 +27877,28 @@
                           {
                             "name": "value",
                             "nodeType": "YulIdentifier",
-                            "src": "36367:5:8"
+                            "src": "37049:5:8"
                           },
                           {
                             "arguments": [
                               {
                                 "name": "value",
                                 "nodeType": "YulIdentifier",
-                                "src": "36378:5:8"
+                                "src": "37060:5:8"
                               },
                               {
                                 "arguments": [
                                   {
                                     "kind": "number",
                                     "nodeType": "YulLiteral",
-                                    "src": "36389:3:8",
+                                    "src": "37071:3:8",
                                     "type": "",
                                     "value": "224"
                                   },
                                   {
                                     "kind": "number",
                                     "nodeType": "YulLiteral",
-                                    "src": "36394:10:8",
+                                    "src": "37076:10:8",
                                     "type": "",
                                     "value": "0xffffffff"
                                   }
@@ -26222,40 +27906,40 @@
                                 "functionName": {
                                   "name": "shl",
                                   "nodeType": "YulIdentifier",
-                                  "src": "36385:3:8"
+                                  "src": "37067:3:8"
                                 },
                                 "nodeType": "YulFunctionCall",
-                                "src": "36385:20:8"
+                                "src": "37067:20:8"
                               }
                             ],
                             "functionName": {
                               "name": "and",
                               "nodeType": "YulIdentifier",
-                              "src": "36374:3:8"
+                              "src": "37056:3:8"
                             },
                             "nodeType": "YulFunctionCall",
-                            "src": "36374:32:8"
+                            "src": "37056:32:8"
                           }
                         ],
                         "functionName": {
                           "name": "eq",
                           "nodeType": "YulIdentifier",
-                          "src": "36364:2:8"
+                          "src": "37046:2:8"
                         },
                         "nodeType": "YulFunctionCall",
-                        "src": "36364:43:8"
+                        "src": "37046:43:8"
                       }
                     ],
                     "functionName": {
                       "name": "iszero",
                       "nodeType": "YulIdentifier",
-                      "src": "36357:6:8"
+                      "src": "37039:6:8"
                     },
                     "nodeType": "YulFunctionCall",
-                    "src": "36357:51:8"
+                    "src": "37039:51:8"
                   },
                   "nodeType": "YulIf",
-                  "src": "36354:2:8"
+                  "src": "37036:2:8"
                 }
               ]
             },
@@ -26265,58 +27949,58 @@
               {
                 "name": "value",
                 "nodeType": "YulTypedName",
-                "src": "36333:5:8",
+                "src": "37015:5:8",
                 "type": ""
               }
             ],
-            "src": "36300:131:8"
+            "src": "36982:131:8"
           }
         ]
       },
-      "contents": "{\n    { }\n    function abi_decode_address(offset) -> value\n    {\n        value := calldataload(offset)\n        validator_revert_address(value)\n    }\n    function abi_decode_array_bytes32_dyn_calldata(offset, end) -> arrayPos, length\n    {\n        if iszero(slt(add(offset, 0x1f), end)) { revert(arrayPos, arrayPos) }\n        length := calldataload(offset)\n        if gt(length, 0xffffffffffffffff) { revert(arrayPos, arrayPos) }\n        arrayPos := add(offset, 0x20)\n        if gt(add(add(offset, shl(5, length)), 0x20), end) { revert(0, 0) }\n    }\n    function abi_decode_bytes_calldata(offset, end) -> arrayPos, length\n    {\n        if iszero(slt(add(offset, 0x1f), end)) { revert(arrayPos, arrayPos) }\n        length := calldataload(offset)\n        if gt(length, 0xffffffffffffffff) { revert(arrayPos, arrayPos) }\n        arrayPos := add(offset, 0x20)\n        if gt(add(add(offset, length), 0x20), end) { revert(0, 0) }\n    }\n    function abi_decode_enum_OperationType(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(lt(value, 7)) { revert(0, 0) }\n    }\n    function abi_decode_enum_TokenType(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(lt(value, 4)) { revert(0, 0) }\n    }\n    function abi_decode_uint32(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(eq(value, and(value, 0xffffffff))) { revert(0, 0) }\n    }\n    function abi_decode_tuple_t_addresst_addresst_array$_t_uint256_$dyn_calldata_ptrt_array$_t_uint256_$dyn_calldata_ptrt_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5, value6, value7\n    {\n        if slt(sub(dataEnd, headStart), 160) { revert(value4, value4) }\n        let value := calldataload(headStart)\n        validator_revert_address(value)\n        value0 := value\n        let value_1 := calldataload(add(headStart, 32))\n        validator_revert_address(value_1)\n        value1 := value_1\n        let offset := calldataload(add(headStart, 64))\n        let _1 := 0xffffffffffffffff\n        if gt(offset, _1) { revert(value4, value4) }\n        let value2_1, value3_1 := abi_decode_array_bytes32_dyn_calldata(add(headStart, offset), dataEnd)\n        value2 := value2_1\n        value3 := value3_1\n        let offset_1 := calldataload(add(headStart, 96))\n        if gt(offset_1, _1) { revert(value4, value4) }\n        let value4_1, value5_1 := abi_decode_array_bytes32_dyn_calldata(add(headStart, offset_1), dataEnd)\n        value4 := value4_1\n        value5 := value5_1\n        let offset_2 := calldataload(add(headStart, 128))\n        if gt(offset_2, _1) { revert(value6, value6) }\n        let value6_1, value7_1 := abi_decode_bytes_calldata(add(headStart, offset_2), dataEnd)\n        value6 := value6_1\n        value7 := value7_1\n    }\n    function abi_decode_tuple_t_addresst_addresst_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4\n    {\n        if slt(sub(dataEnd, headStart), 128) { revert(value4, value4) }\n        let value := calldataload(headStart)\n        validator_revert_address(value)\n        value0 := value\n        let value_1 := calldataload(add(headStart, 32))\n        validator_revert_address(value_1)\n        value1 := value_1\n        value2 := calldataload(add(headStart, 64))\n        let offset := calldataload(add(headStart, 96))\n        if gt(offset, 0xffffffffffffffff) { revert(value4, value4) }\n        let value3_1, value4_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n        value3 := value3_1\n        value4 := value4_1\n    }\n    function abi_decode_tuple_t_addresst_addresst_uint256t_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5\n    {\n        if slt(sub(dataEnd, headStart), 160) { revert(value4, value4) }\n        let value := calldataload(headStart)\n        validator_revert_address(value)\n        value0 := value\n        let value_1 := calldataload(add(headStart, 32))\n        validator_revert_address(value_1)\n        value1 := value_1\n        value2 := calldataload(add(headStart, 64))\n        value3 := calldataload(add(headStart, 96))\n        let offset := calldataload(add(headStart, 128))\n        if gt(offset, 0xffffffffffffffff) { revert(value4, value4) }\n        let value4_1, value5_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n        value4 := value4_1\n        value5 := value5_1\n    }\n    function abi_decode_tuple_t_array$_t_bytes32_$dyn_calldata_ptrt_uint32t_bytes32t_enum$_OperationType_$103t_enum$_TokenType_$2176t_addresst_uint256t_address_payablet_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5, value6, value7, value8, value9, value10, value11\n    {\n        if slt(sub(dataEnd, headStart), 320) { revert(value8, value8) }\n        if gt(calldataload(headStart), 0xffffffffffffffff) { revert(value8, value8) }\n        let value0_1, value1_1 := abi_decode_array_bytes32_dyn_calldata(add(headStart, calldataload(headStart)), dataEnd)\n        value0 := value0_1\n        value1 := value1_1\n        value2 := abi_decode_uint32(add(headStart, 32))\n        value3 := calldataload(add(headStart, 64))\n        value4 := abi_decode_enum_OperationType(add(headStart, 96))\n        value5 := abi_decode_enum_TokenType(add(headStart, 128))\n        value6 := abi_decode_address(add(headStart, 160))\n        value7 := calldataload(add(headStart, 192))\n        value8 := abi_decode_address(add(headStart, 224))\n        value9 := calldataload(add(headStart, 256))\n        if gt(calldataload(add(headStart, 288)), 0xffffffffffffffff) { revert(value11, value11) }\n        let value10_1, value11_1 := abi_decode_bytes_calldata(add(headStart, calldataload(add(headStart, 288))), dataEnd)\n        value10 := value10_1\n        value11 := value11_1\n    }\n    function abi_decode_tuple_t_bool_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := mload(headStart)\n        if iszero(eq(value, iszero(iszero(value)))) { revert(value0, value0) }\n        value0 := value\n    }\n    function abi_decode_tuple_t_bytes32(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        value0 := calldataload(headStart)\n    }\n    function abi_decode_tuple_t_bytes32_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        value0 := mload(headStart)\n    }\n    function abi_decode_tuple_t_bytes32t_bytes32t_bytes32(headStart, dataEnd) -> value0, value1, value2\n    {\n        if slt(sub(dataEnd, headStart), 96) { revert(value2, value2) }\n        value0 := calldataload(headStart)\n        value1 := calldataload(add(headStart, 32))\n        value2 := calldataload(add(headStart, 64))\n    }\n    function abi_decode_tuple_t_bytes4(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := calldataload(headStart)\n        validator_revert_bytes4(value)\n        value0 := value\n    }\n    function abi_decode_tuple_t_bytes4_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := mload(headStart)\n        validator_revert_bytes4(value)\n        value0 := value\n    }\n    function abi_encode_array_bool_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, iszero(iszero(mload(srcPtr))))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_array_bytes32_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, mload(srcPtr))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_array_uint32_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, and(mload(srcPtr), 0xffffffff))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_bytes_calldata(start, length, pos) -> end\n    {\n        mstore(pos, length)\n        calldatacopy(add(pos, 0x20), start, length)\n        mstore(add(add(pos, length), 0x20), end)\n        end := add(add(pos, and(add(length, 31), not(31))), 0x20)\n    }\n    function abi_encode_bytes(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        copy_memory_to_memory(add(value, 0x20), add(pos, 0x20), length)\n        end := add(add(pos, and(add(length, 31), not(31))), 0x20)\n    }\n    function abi_encode_enum_TokenType(value, pos)\n    {\n        if iszero(lt(value, 4))\n        {\n            mstore(0, shl(224, 0x4e487b71))\n            mstore(4, 0x21)\n            revert(0, 0x24)\n        }\n        mstore(pos, value)\n    }\n    function abi_encode_tuple_packed_t_bytes32__to_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value0) -> end\n    {\n        mstore(pos, value0)\n        end := add(pos, 32)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32__to_t_bytes32_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        end := add(pos, 64)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32_t_bytes32__to_t_bytes32_t_bytes32_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value2, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        mstore(add(pos, 64), value2)\n        end := add(pos, 96)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes_calldata_ptr__to_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos, value7, value6, value5, value4, value3, value2, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        mstore(add(pos, 64), value2)\n        mstore(add(pos, 96), value3)\n        mstore(add(pos, 128), value4)\n        mstore(add(pos, 160), value5)\n        calldatacopy(add(pos, 192), value6, value7)\n        let _1 := add(add(pos, value7), 192)\n        mstore(_1, end)\n        end := _1\n    }\n    function abi_encode_tuple_packed_t_bytes_memory_ptr__to_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos, value0) -> end\n    {\n        let length := mload(value0)\n        copy_memory_to_memory(add(value0, 0x20), pos, length)\n        end := add(pos, length)\n    }\n    function abi_encode_tuple_packed_t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470__to_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos) -> end\n    { end := pos }\n    function abi_encode_tuple_t_address__to_t_address__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_address_payable__to_t_address__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_bytes_memory_ptr__to_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), 128)\n        tail := abi_encode_bytes(value3, add(headStart, 128))\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_uint256_t_bytes_calldata_ptr__to_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), value3)\n        mstore(add(headStart, 128), 160)\n        tail := abi_encode_bytes_calldata(value4, value5, add(headStart, 160))\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__to_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), value3)\n        mstore(add(headStart, 128), 160)\n        tail := abi_encode_bytes(value4, add(headStart, 160))\n    }\n    function abi_encode_tuple_t_address_t_uint256__to_t_address_t_uint256__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, and(value0, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 32), value1)\n    }\n    function abi_encode_tuple_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__to_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        mstore(headStart, 160)\n        let tail_1 := abi_encode_array_bytes32_dyn(value0, add(headStart, 160))\n        mstore(add(headStart, 32), sub(tail_1, headStart))\n        let tail_2 := abi_encode_array_bytes32_dyn(value1, tail_1)\n        mstore(add(headStart, 64), sub(tail_2, headStart))\n        let tail_3 := abi_encode_array_bytes32_dyn(value2, tail_2)\n        mstore(add(headStart, 96), sub(tail_3, headStart))\n        let tail_4 := abi_encode_array_uint32_dyn(value3, tail_3)\n        mstore(add(headStart, 128), sub(tail_4, headStart))\n        tail := abi_encode_array_bool_dyn(value4, tail_4)\n    }\n    function abi_encode_tuple_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__to_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        mstore(headStart, 128)\n        let tail_1 := abi_encode_array_bytes32_dyn(value0, add(headStart, 128))\n        mstore(add(headStart, 32), sub(tail_1, headStart))\n        let tail_2 := abi_encode_array_bytes32_dyn(value1, tail_1)\n        mstore(add(headStart, 64), sub(tail_2, headStart))\n        let tail_3 := abi_encode_array_uint32_dyn(value2, tail_2)\n        mstore(add(headStart, 96), sub(tail_3, headStart))\n        tail := abi_encode_array_bool_dyn(value3, tail_3)\n    }\n    function abi_encode_tuple_t_array$_t_enum$_TokenType_$2176_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__to_t_array$_t_uint8_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        let tail_1 := add(headStart, 96)\n        mstore(headStart, 96)\n        let pos := tail_1\n        let length := mload(value0)\n        mstore(tail_1, length)\n        pos := add(headStart, 128)\n        let _1 := 0x20\n        let srcPtr := add(value0, _1)\n        let i := tail\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            abi_encode_enum_TokenType(mload(srcPtr), pos)\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        mstore(add(headStart, _1), sub(pos, headStart))\n        let pos_1 := pos\n        let length_1 := mload(value1)\n        mstore(pos, length_1)\n        pos_1 := add(pos, _1)\n        let srcPtr_1 := add(value1, _1)\n        let i_1 := tail\n        for { } lt(i_1, length_1) { i_1 := add(i_1, 1) }\n        {\n            mstore(pos_1, and(mload(srcPtr_1), sub(shl(160, 1), 1)))\n            pos_1 := add(pos_1, _1)\n            srcPtr_1 := add(srcPtr_1, _1)\n        }\n        mstore(add(headStart, 64), sub(pos_1, headStart))\n        tail := abi_encode_array_bytes32_dyn(value2, pos_1)\n    }\n    function abi_encode_tuple_t_bool__to_t_bool__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, iszero(iszero(value0)))\n    }\n    function abi_encode_tuple_t_bytes32_t_bytes32_t_uint32_t_bool__to_t_bytes32_t_bytes32_t_uint32_t_bool__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 128)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n        mstore(add(headStart, 64), and(value2, 0xffffffff))\n        mstore(add(headStart, 96), iszero(iszero(value3)))\n    }\n    function abi_encode_tuple_t_bytes32_t_uint8_t_uint8_t_uint32_t_uint32_t_uint8_t_address_t_uint256__to_t_bytes32_t_uint8_t_uint8_t_uint32_t_uint32_t_uint8_t_address_t_uint256__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 256)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), and(value1, 0xff))\n        mstore(add(headStart, 64), and(value2, 0xff))\n        let _1 := 0xffffffff\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), and(value5, 0xff))\n        mstore(add(headStart, 192), and(value6, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 224), value7)\n    }\n    function abi_encode_tuple_t_bytes4__to_t_bytes4__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, shl(224, 0xffffffff)))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2176_t_address_t_uint256__to_t_uint8_t_address_t_uint256__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 96)\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 64), value2)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2176_t_address_t_uint256_t_address_t_uint256__to_t_uint8_t_address_t_uint256_t_address_t_uint256__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 160)\n        abi_encode_enum_TokenType(value0, headStart)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), value4)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2176_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed(headStart, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), value4)\n        mstore(add(headStart, 160), 192)\n        tail := abi_encode_bytes(value5, add(headStart, 192))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2176_t_address_t_uint256_t_address_t_uint256_t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), value4)\n        mstore(add(headStart, 160), 192)\n        mstore(add(headStart, 192), tail)\n        tail := add(headStart, 224)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2176_t_rational_1_by_1_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), value1)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 64), and(value2, _1))\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), value5)\n        mstore(add(headStart, 192), 224)\n        tail := abi_encode_bytes_calldata(value6, value7, add(headStart, 224))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2176_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), value1)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 64), and(value2, _1))\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), value5)\n        mstore(add(headStart, 192), 224)\n        tail := abi_encode_bytes_calldata(value6, value7, add(headStart, 224))\n    }\n    function abi_encode_tuple_t_stringliteral_0c1004916946b89dffc8743f953d4885accbd82403cd8bd9e53f384fa95731af__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 16)\n        mstore(add(headStart, 64), \"Too many commits\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_0d3a5f34c29e81aa7bbfe59ba3e3db3006ac807af6a54ad3cac7463abb5d83b0__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 13)\n        mstore(add(headStart, 64), \"Nonce too low\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_1c2d20c6fc3078eff495891b6caa29a7be172ac7018d2f6172fb68ba87240f3d__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 30)\n        mstore(add(headStart, 64), \"Last resort address is not set\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_286e638d23bc87ce733fb0202708f485eb6091553feef3d943a83966c37e7639__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"Reveal too late\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_2c594e135171cc6dc0d96175148636924623810d2d534a029b78044ab417d7d0__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 20)\n        mstore(add(headStart, 64), \"input bytes too long\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_2d6af051cc9bdd806c60b20e274721a89fb9a7025afbe00dde07d3201c4068b2__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 24)\n        mstore(add(headStart, 64), \"Commit already completed\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_3430d3063c70bc84041a3bb75a9010a8e7685d878f7521f09ab01e30ea2f9f24__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 23)\n        mstore(add(headStart, 64), \"Parameter hash mismatch\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_38f47be26bf822ff597a5cbffa2774ecae1ceaa169f734b7db0a07fb62c9547a__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"No commit found\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_50d19c134c4136d96b547b25b22aa8e1363529709733541230ebfa41cb82b262__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 19)\n        mstore(add(headStart, 64), \"Too early to retire\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_52d0f8312a7e3bda426de31c2e4c71a1ad4900f389f87f89d2a2eb06a0683b80__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 26)\n        mstore(add(headStart, 64), \"Index - timestamp mismatch\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_5515ff285a2022327bc0ffdc690388a3a1d15360640a68caecd56fe24371f01a__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 18)\n        mstore(add(headStart, 64), \"Proof is incorrect\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_791866c3f9c9c03c601447bf48dd4e0bd3f849759626f2144adccf6e77c6e64d__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 24)\n        mstore(add(headStart, 64), \"Invalid commit timestamp\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_7fb6a81bbdba15000418055bc5e058938e4fd0b50065d70de11ee03ca8f293e3__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 36)\n        mstore(add(headStart, 64), \"data must have length multiple t\")\n        mstore(add(headStart, 96), \"o 96\")\n        tail := add(headStart, 128)\n    }\n    function abi_encode_tuple_t_stringliteral_83d08d6dcf099c52fbe149a08cb4ffd65f3fec6dbf87dba7bc08b7a534982441__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 29)\n        mstore(add(headStart, 64), \"Not enough neighbors provided\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_887bc482e9abfdf76109db32e10c15ef35a028513416621efc881c8a92574313__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"Recovery failed\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_8a9c0db4284cd81d8eaef3d877f21bcccab643ae503f9d63f7eb3ad5aacbe749__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 19)\n        mstore(add(headStart, 64), \"Invalid commit hash\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_b20dc6ef8ce4f94dd03e7dbd2b41776293fb93e4528d85e98acf1bfed3136f73__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 10)\n        mstore(add(headStart, 64), \"Deprecated\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_bc3ff827c71f29679c970d77c58ec807a06259e86e9cd823a8554b04d0d6f030__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 34)\n        mstore(add(headStart, 64), \"Last resort address is already s\")\n        mstore(add(headStart, 96), \"et\")\n        tail := add(headStart, 128)\n    }\n    function abi_encode_tuple_t_stringliteral_c3972966c6b890cd04bd250ec8fd05d1950759334a3d8fa4e9bb3d0693e9952d__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"No valid commit\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_dd8f27f99c8575d947c48310b46d36796c8df82285fc83fecd33510610055413__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 19)\n        mstore(add(headStart, 64), \"Invalid commitIndex\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_uint256_t_address__to_t_uint256_t_address__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint256_t_address_payable__to_t_uint256_t_address__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint256_t_uint256__to_t_uint256_t_uint256__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n    }\n    function abi_encode_tuple_t_uint256_t_uint256_t_address_payable__to_t_uint256_t_uint256_t_address__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 96)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n        mstore(add(headStart, 64), and(value2, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint256_t_uint256_t_uint256_t_address_payable__to_t_uint256_t_uint256_t_uint256_t_address__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 128)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint32_t_uint32__to_t_uint32_t_uint32__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        let _1 := 0xffffffff\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n    }\n    function abi_encode_tuple_t_uint8__to_t_uint8__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, 0xff))\n    }\n    function calldata_array_index_range_access_t_bytes_calldata_ptr(offset, length, startIndex, endIndex) -> offsetOut, lengthOut\n    {\n        if gt(startIndex, endIndex) { revert(offsetOut, offsetOut) }\n        if gt(endIndex, length) { revert(offsetOut, offsetOut) }\n        offsetOut := add(offset, startIndex)\n        lengthOut := sub(endIndex, startIndex)\n    }\n    function checked_add_t_uint256(x, y) -> sum\n    {\n        if gt(x, not(y)) { panic_error_0x11() }\n        sum := add(x, y)\n    }\n    function checked_add_t_uint32(x, y) -> sum\n    {\n        let _1 := 0xffffffff\n        let x_1 := and(x, _1)\n        let y_1 := and(y, _1)\n        if gt(x_1, sub(_1, y_1)) { panic_error_0x11() }\n        sum := add(x_1, y_1)\n    }\n    function checked_div_t_uint256(x, y) -> r\n    {\n        if iszero(y) { panic_error_0x12() }\n        r := div(x, y)\n    }\n    function checked_div_t_uint32(x, y) -> r\n    {\n        let _1 := 0xffffffff\n        let y_1 := and(y, _1)\n        if iszero(y_1) { panic_error_0x12() }\n        r := div(and(x, _1), y_1)\n    }\n    function checked_mul_t_uint256(x, y) -> product\n    {\n        if and(iszero(iszero(x)), gt(y, div(not(0), x))) { panic_error_0x11() }\n        product := mul(x, y)\n    }\n    function checked_mul_t_uint32(x, y) -> product\n    {\n        let _1 := 0xffffffff\n        let x_1 := and(x, _1)\n        let y_1 := and(y, _1)\n        if and(iszero(iszero(x_1)), gt(y_1, div(_1, x_1))) { panic_error_0x11() }\n        product := mul(x_1, y_1)\n    }\n    function checked_sub_t_uint256(x, y) -> diff\n    {\n        if lt(x, y) { panic_error_0x11() }\n        diff := sub(x, y)\n    }\n    function checked_sub_t_uint32(x, y) -> diff\n    {\n        let _1 := 0xffffffff\n        let x_1 := and(x, _1)\n        let y_1 := and(y, _1)\n        if lt(x_1, y_1) { panic_error_0x11() }\n        diff := sub(x_1, y_1)\n    }\n    function checked_sub_t_uint8(x, y) -> diff\n    {\n        let x_1 := and(x, 0xff)\n        let y_1 := and(y, 0xff)\n        if lt(x_1, y_1) { panic_error_0x11() }\n        diff := sub(x_1, y_1)\n    }\n    function copy_memory_to_memory(src, dst, length)\n    {\n        let i := 0\n        for { } lt(i, length) { i := add(i, 32) }\n        {\n            mstore(add(dst, i), mload(add(src, i)))\n        }\n        if gt(i, length) { mstore(add(dst, length), 0) }\n    }\n    function finalize_allocation(memPtr, size)\n    {\n        let newFreePtr := add(memPtr, and(add(size, 31), not(31)))\n        if or(gt(newFreePtr, 0xffffffffffffffff), lt(newFreePtr, memPtr))\n        {\n            mstore(0, shl(224, 0x4e487b71))\n            mstore(4, 0x41)\n            revert(0, 0x24)\n        }\n        mstore(64, newFreePtr)\n    }\n    function increment_t_uint32(value) -> ret\n    {\n        let _1 := 0xffffffff\n        let value_1 := and(value, _1)\n        if eq(value_1, _1) { panic_error_0x11() }\n        ret := add(value_1, 1)\n    }\n    function increment_t_uint8(value) -> ret\n    {\n        let value_1 := and(value, 0xff)\n        if eq(value_1, 0xff) { panic_error_0x11() }\n        ret := add(value_1, 1)\n    }\n    function mod_t_uint32(x, y) -> r\n    {\n        let _1 := 0xffffffff\n        let y_1 := and(y, _1)\n        if iszero(y_1) { panic_error_0x12() }\n        r := mod(and(x, _1), y_1)\n    }\n    function panic_error_0x11()\n    {\n        mstore(0, shl(224, 0x4e487b71))\n        mstore(4, 0x11)\n        revert(0, 0x24)\n    }\n    function panic_error_0x12()\n    {\n        mstore(0, shl(224, 0x4e487b71))\n        mstore(4, 0x12)\n        revert(0, 0x24)\n    }\n    function return_data_selector() -> sig\n    {\n        if gt(returndatasize(), 3)\n        {\n            returndatacopy(sig, sig, 4)\n            sig := shr(224, mload(sig))\n        }\n    }\n    function try_decode_error_message() -> ret\n    {\n        if lt(returndatasize(), 0x44) { leave }\n        let data := mload(64)\n        let _1 := not(3)\n        returndatacopy(data, 4, add(returndatasize(), _1))\n        let offset := mload(data)\n        let _2 := returndatasize()\n        let _3 := 0xffffffffffffffff\n        if or(gt(offset, _3), gt(add(offset, 0x24), _2)) { leave }\n        let msg := add(data, offset)\n        let length := mload(msg)\n        if gt(length, _3) { leave }\n        if gt(add(add(msg, length), 0x20), add(add(data, returndatasize()), _1)) { leave }\n        finalize_allocation(data, add(add(offset, length), 0x20))\n        ret := msg\n    }\n    function validator_revert_address(value)\n    {\n        if iszero(eq(value, and(value, sub(shl(160, 1), 1)))) { revert(0, 0) }\n    }\n    function validator_revert_bytes4(value)\n    {\n        if iszero(eq(value, and(value, shl(224, 0xffffffff)))) { revert(0, 0) }\n    }\n}",
+      "contents": "{\n    { }\n    function abi_decode_address(offset) -> value\n    {\n        value := calldataload(offset)\n        validator_revert_address(value)\n    }\n    function abi_decode_array_bytes32_dyn_calldata(offset, end) -> arrayPos, length\n    {\n        if iszero(slt(add(offset, 0x1f), end)) { revert(arrayPos, arrayPos) }\n        length := calldataload(offset)\n        if gt(length, 0xffffffffffffffff) { revert(arrayPos, arrayPos) }\n        arrayPos := add(offset, 0x20)\n        if gt(add(add(offset, shl(5, length)), 0x20), end) { revert(0, 0) }\n    }\n    function abi_decode_bytes_calldata(offset, end) -> arrayPos, length\n    {\n        if iszero(slt(add(offset, 0x1f), end)) { revert(arrayPos, arrayPos) }\n        length := calldataload(offset)\n        if gt(length, 0xffffffffffffffff) { revert(arrayPos, arrayPos) }\n        arrayPos := add(offset, 0x20)\n        if gt(add(add(offset, length), 0x20), end) { revert(0, 0) }\n    }\n    function abi_decode_enum_OperationType(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(lt(value, 8)) { revert(0, 0) }\n    }\n    function abi_decode_enum_TokenType(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(lt(value, 4)) { revert(0, 0) }\n    }\n    function abi_decode_uint32(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(eq(value, and(value, 0xffffffff))) { revert(0, 0) }\n    }\n    function abi_decode_tuple_t_addresst_addresst_array$_t_uint256_$dyn_calldata_ptrt_array$_t_uint256_$dyn_calldata_ptrt_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5, value6, value7\n    {\n        if slt(sub(dataEnd, headStart), 160) { revert(value4, value4) }\n        let value := calldataload(headStart)\n        validator_revert_address(value)\n        value0 := value\n        let value_1 := calldataload(add(headStart, 32))\n        validator_revert_address(value_1)\n        value1 := value_1\n        let offset := calldataload(add(headStart, 64))\n        let _1 := 0xffffffffffffffff\n        if gt(offset, _1) { revert(value4, value4) }\n        let value2_1, value3_1 := abi_decode_array_bytes32_dyn_calldata(add(headStart, offset), dataEnd)\n        value2 := value2_1\n        value3 := value3_1\n        let offset_1 := calldataload(add(headStart, 96))\n        if gt(offset_1, _1) { revert(value4, value4) }\n        let value4_1, value5_1 := abi_decode_array_bytes32_dyn_calldata(add(headStart, offset_1), dataEnd)\n        value4 := value4_1\n        value5 := value5_1\n        let offset_2 := calldataload(add(headStart, 128))\n        if gt(offset_2, _1) { revert(value6, value6) }\n        let value6_1, value7_1 := abi_decode_bytes_calldata(add(headStart, offset_2), dataEnd)\n        value6 := value6_1\n        value7 := value7_1\n    }\n    function abi_decode_tuple_t_addresst_addresst_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4\n    {\n        if slt(sub(dataEnd, headStart), 128) { revert(value4, value4) }\n        let value := calldataload(headStart)\n        validator_revert_address(value)\n        value0 := value\n        let value_1 := calldataload(add(headStart, 32))\n        validator_revert_address(value_1)\n        value1 := value_1\n        value2 := calldataload(add(headStart, 64))\n        let offset := calldataload(add(headStart, 96))\n        if gt(offset, 0xffffffffffffffff) { revert(value4, value4) }\n        let value3_1, value4_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n        value3 := value3_1\n        value4 := value4_1\n    }\n    function abi_decode_tuple_t_addresst_addresst_uint256t_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5\n    {\n        if slt(sub(dataEnd, headStart), 160) { revert(value4, value4) }\n        let value := calldataload(headStart)\n        validator_revert_address(value)\n        value0 := value\n        let value_1 := calldataload(add(headStart, 32))\n        validator_revert_address(value_1)\n        value1 := value_1\n        value2 := calldataload(add(headStart, 64))\n        value3 := calldataload(add(headStart, 96))\n        let offset := calldataload(add(headStart, 128))\n        if gt(offset, 0xffffffffffffffff) { revert(value4, value4) }\n        let value4_1, value5_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n        value4 := value4_1\n        value5 := value5_1\n    }\n    function abi_decode_tuple_t_array$_t_bytes32_$dyn_calldata_ptrt_uint32t_bytes32t_enum$_OperationType_$493t_enum$_TokenType_$2607t_addresst_uint256t_address_payablet_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5, value6, value7, value8, value9, value10, value11\n    {\n        if slt(sub(dataEnd, headStart), 320) { revert(value8, value8) }\n        if gt(calldataload(headStart), 0xffffffffffffffff) { revert(value8, value8) }\n        let value0_1, value1_1 := abi_decode_array_bytes32_dyn_calldata(add(headStart, calldataload(headStart)), dataEnd)\n        value0 := value0_1\n        value1 := value1_1\n        value2 := abi_decode_uint32(add(headStart, 32))\n        value3 := calldataload(add(headStart, 64))\n        value4 := abi_decode_enum_OperationType(add(headStart, 96))\n        value5 := abi_decode_enum_TokenType(add(headStart, 128))\n        value6 := abi_decode_address(add(headStart, 160))\n        value7 := calldataload(add(headStart, 192))\n        value8 := abi_decode_address(add(headStart, 224))\n        value9 := calldataload(add(headStart, 256))\n        if gt(calldataload(add(headStart, 288)), 0xffffffffffffffff) { revert(value11, value11) }\n        let value10_1, value11_1 := abi_decode_bytes_calldata(add(headStart, calldataload(add(headStart, 288))), dataEnd)\n        value10 := value10_1\n        value11 := value11_1\n    }\n    function abi_decode_tuple_t_bool_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := mload(headStart)\n        if iszero(eq(value, iszero(iszero(value)))) { revert(value0, value0) }\n        value0 := value\n    }\n    function abi_decode_tuple_t_bytes32(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        value0 := calldataload(headStart)\n    }\n    function abi_decode_tuple_t_bytes32_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        value0 := mload(headStart)\n    }\n    function abi_decode_tuple_t_bytes32t_bytes32t_bytes32(headStart, dataEnd) -> value0, value1, value2\n    {\n        if slt(sub(dataEnd, headStart), 96) { revert(value2, value2) }\n        value0 := calldataload(headStart)\n        value1 := calldataload(add(headStart, 32))\n        value2 := calldataload(add(headStart, 64))\n    }\n    function abi_decode_tuple_t_bytes4(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := calldataload(headStart)\n        validator_revert_bytes4(value)\n        value0 := value\n    }\n    function abi_decode_tuple_t_bytes4_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := mload(headStart)\n        validator_revert_bytes4(value)\n        value0 := value\n    }\n    function abi_encode_array_bool_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, iszero(iszero(mload(srcPtr))))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_array_bytes32_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, mload(srcPtr))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_array_uint32_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, and(mload(srcPtr), 0xffffffff))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_bytes_calldata(start, length, pos) -> end\n    {\n        mstore(pos, length)\n        calldatacopy(add(pos, 0x20), start, length)\n        mstore(add(add(pos, length), 0x20), end)\n        end := add(add(pos, and(add(length, 31), not(31))), 0x20)\n    }\n    function abi_encode_bytes(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        copy_memory_to_memory(add(value, 0x20), add(pos, 0x20), length)\n        end := add(add(pos, and(add(length, 31), not(31))), 0x20)\n    }\n    function abi_encode_enum_TokenType(value, pos)\n    {\n        if iszero(lt(value, 4))\n        {\n            mstore(0, shl(224, 0x4e487b71))\n            mstore(4, 0x21)\n            revert(0, 0x24)\n        }\n        mstore(pos, value)\n    }\n    function abi_encode_tuple_packed_t_bytes32__to_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value0) -> end\n    {\n        mstore(pos, value0)\n        end := add(pos, 32)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32__to_t_bytes32_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        end := add(pos, 64)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32_t_bytes32__to_t_bytes32_t_bytes32_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value2, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        mstore(add(pos, 64), value2)\n        end := add(pos, 96)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes_calldata_ptr__to_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos, value7, value6, value5, value4, value3, value2, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        mstore(add(pos, 64), value2)\n        mstore(add(pos, 96), value3)\n        mstore(add(pos, 128), value4)\n        mstore(add(pos, 160), value5)\n        calldatacopy(add(pos, 192), value6, value7)\n        let _1 := add(add(pos, value7), 192)\n        mstore(_1, end)\n        end := _1\n    }\n    function abi_encode_tuple_packed_t_bytes_calldata_ptr__to_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos, value1, value0) -> end\n    {\n        calldatacopy(pos, value0, value1)\n        let _1 := add(pos, value1)\n        mstore(_1, end)\n        end := _1\n    }\n    function abi_encode_tuple_packed_t_bytes_memory_ptr__to_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos, value0) -> end\n    {\n        let length := mload(value0)\n        copy_memory_to_memory(add(value0, 0x20), pos, length)\n        end := add(pos, length)\n    }\n    function abi_encode_tuple_packed_t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470__to_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos) -> end\n    { end := pos }\n    function abi_encode_tuple_t_address__to_t_address__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_address_payable__to_t_address__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_bytes_memory_ptr__to_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), 128)\n        tail := abi_encode_bytes(value3, add(headStart, 128))\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_uint256_t_bytes_calldata_ptr__to_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), value3)\n        mstore(add(headStart, 128), 160)\n        tail := abi_encode_bytes_calldata(value4, value5, add(headStart, 160))\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__to_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), value3)\n        mstore(add(headStart, 128), 160)\n        tail := abi_encode_bytes(value4, add(headStart, 160))\n    }\n    function abi_encode_tuple_t_address_t_uint256__to_t_address_t_uint256__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, and(value0, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 32), value1)\n    }\n    function abi_encode_tuple_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__to_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        mstore(headStart, 160)\n        let tail_1 := abi_encode_array_bytes32_dyn(value0, add(headStart, 160))\n        mstore(add(headStart, 32), sub(tail_1, headStart))\n        let tail_2 := abi_encode_array_bytes32_dyn(value1, tail_1)\n        mstore(add(headStart, 64), sub(tail_2, headStart))\n        let tail_3 := abi_encode_array_bytes32_dyn(value2, tail_2)\n        mstore(add(headStart, 96), sub(tail_3, headStart))\n        let tail_4 := abi_encode_array_uint32_dyn(value3, tail_3)\n        mstore(add(headStart, 128), sub(tail_4, headStart))\n        tail := abi_encode_array_bool_dyn(value4, tail_4)\n    }\n    function abi_encode_tuple_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__to_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        mstore(headStart, 128)\n        let tail_1 := abi_encode_array_bytes32_dyn(value0, add(headStart, 128))\n        mstore(add(headStart, 32), sub(tail_1, headStart))\n        let tail_2 := abi_encode_array_bytes32_dyn(value1, tail_1)\n        mstore(add(headStart, 64), sub(tail_2, headStart))\n        let tail_3 := abi_encode_array_uint32_dyn(value2, tail_2)\n        mstore(add(headStart, 96), sub(tail_3, headStart))\n        tail := abi_encode_array_bool_dyn(value3, tail_3)\n    }\n    function abi_encode_tuple_t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__to_t_array$_t_uint8_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        let tail_1 := add(headStart, 96)\n        mstore(headStart, 96)\n        let pos := tail_1\n        let length := mload(value0)\n        mstore(tail_1, length)\n        pos := add(headStart, 128)\n        let _1 := 0x20\n        let srcPtr := add(value0, _1)\n        let i := tail\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            abi_encode_enum_TokenType(mload(srcPtr), pos)\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        mstore(add(headStart, _1), sub(pos, headStart))\n        let pos_1 := pos\n        let length_1 := mload(value1)\n        mstore(pos, length_1)\n        pos_1 := add(pos, _1)\n        let srcPtr_1 := add(value1, _1)\n        let i_1 := tail\n        for { } lt(i_1, length_1) { i_1 := add(i_1, 1) }\n        {\n            mstore(pos_1, and(mload(srcPtr_1), sub(shl(160, 1), 1)))\n            pos_1 := add(pos_1, _1)\n            srcPtr_1 := add(srcPtr_1, _1)\n        }\n        mstore(add(headStart, 64), sub(pos_1, headStart))\n        tail := abi_encode_array_bytes32_dyn(value2, pos_1)\n    }\n    function abi_encode_tuple_t_bool__to_t_bool__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, iszero(iszero(value0)))\n    }\n    function abi_encode_tuple_t_bytes32_t_bytes32_t_uint32_t_bool__to_t_bytes32_t_bytes32_t_uint32_t_bool__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 128)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n        mstore(add(headStart, 64), and(value2, 0xffffffff))\n        mstore(add(headStart, 96), iszero(iszero(value3)))\n    }\n    function abi_encode_tuple_t_bytes32_t_uint8_t_uint8_t_uint32_t_uint32_t_uint8_t_address_t_uint256__to_t_bytes32_t_uint8_t_uint8_t_uint32_t_uint32_t_uint8_t_address_t_uint256__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 256)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), and(value1, 0xff))\n        mstore(add(headStart, 64), and(value2, 0xff))\n        let _1 := 0xffffffff\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), and(value5, 0xff))\n        mstore(add(headStart, 192), and(value6, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 224), value7)\n    }\n    function abi_encode_tuple_t_bytes4__to_t_bytes4__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, shl(224, 0xffffffff)))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256__to_t_uint8_t_address_t_uint256__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 96)\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 64), value2)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256_t_address_t_uint256__to_t_uint8_t_address_t_uint256_t_address_t_uint256__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 160)\n        abi_encode_enum_TokenType(value0, headStart)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), value4)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed(headStart, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), value4)\n        mstore(add(headStart, 160), 192)\n        tail := abi_encode_bytes(value5, add(headStart, 192))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256_t_address_t_uint256_t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), value4)\n        mstore(add(headStart, 160), 192)\n        mstore(add(headStart, 192), tail)\n        tail := add(headStart, 224)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_rational_1_by_1_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), value1)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 64), and(value2, _1))\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), value5)\n        mstore(add(headStart, 192), 224)\n        tail := abi_encode_bytes_calldata(value6, value7, add(headStart, 224))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), value1)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 64), and(value2, _1))\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), value5)\n        mstore(add(headStart, 192), 224)\n        tail := abi_encode_bytes_calldata(value6, value7, add(headStart, 224))\n    }\n    function abi_encode_tuple_t_stringliteral_0c1004916946b89dffc8743f953d4885accbd82403cd8bd9e53f384fa95731af__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 16)\n        mstore(add(headStart, 64), \"Too many commits\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_0d3a5f34c29e81aa7bbfe59ba3e3db3006ac807af6a54ad3cac7463abb5d83b0__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 13)\n        mstore(add(headStart, 64), \"Nonce too low\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_1c2d20c6fc3078eff495891b6caa29a7be172ac7018d2f6172fb68ba87240f3d__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 30)\n        mstore(add(headStart, 64), \"Last resort address is not set\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_286e638d23bc87ce733fb0202708f485eb6091553feef3d943a83966c37e7639__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"Reveal too late\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_2c594e135171cc6dc0d96175148636924623810d2d534a029b78044ab417d7d0__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 20)\n        mstore(add(headStart, 64), \"input bytes too long\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_2d6af051cc9bdd806c60b20e274721a89fb9a7025afbe00dde07d3201c4068b2__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 24)\n        mstore(add(headStart, 64), \"Commit already completed\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_3430d3063c70bc84041a3bb75a9010a8e7685d878f7521f09ab01e30ea2f9f24__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 23)\n        mstore(add(headStart, 64), \"Parameter hash mismatch\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_38f47be26bf822ff597a5cbffa2774ecae1ceaa169f734b7db0a07fb62c9547a__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"No commit found\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_50d19c134c4136d96b547b25b22aa8e1363529709733541230ebfa41cb82b262__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 19)\n        mstore(add(headStart, 64), \"Too early to retire\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_52d0f8312a7e3bda426de31c2e4c71a1ad4900f389f87f89d2a2eb06a0683b80__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 26)\n        mstore(add(headStart, 64), \"Index - timestamp mismatch\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_5515ff285a2022327bc0ffdc690388a3a1d15360640a68caecd56fe24371f01a__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 18)\n        mstore(add(headStart, 64), \"Proof is incorrect\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_791866c3f9c9c03c601447bf48dd4e0bd3f849759626f2144adccf6e77c6e64d__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 24)\n        mstore(add(headStart, 64), \"Invalid commit timestamp\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_7fb6a81bbdba15000418055bc5e058938e4fd0b50065d70de11ee03ca8f293e3__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 36)\n        mstore(add(headStart, 64), \"data must have length multiple t\")\n        mstore(add(headStart, 96), \"o 96\")\n        tail := add(headStart, 128)\n    }\n    function abi_encode_tuple_t_stringliteral_83d08d6dcf099c52fbe149a08cb4ffd65f3fec6dbf87dba7bc08b7a534982441__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 29)\n        mstore(add(headStart, 64), \"Not enough neighbors provided\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_887bc482e9abfdf76109db32e10c15ef35a028513416621efc881c8a92574313__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"Recovery failed\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_8a9c0db4284cd81d8eaef3d877f21bcccab643ae503f9d63f7eb3ad5aacbe749__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 19)\n        mstore(add(headStart, 64), \"Invalid commit hash\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_b20dc6ef8ce4f94dd03e7dbd2b41776293fb93e4528d85e98acf1bfed3136f73__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 10)\n        mstore(add(headStart, 64), \"Deprecated\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_bc3ff827c71f29679c970d77c58ec807a06259e86e9cd823a8554b04d0d6f030__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 34)\n        mstore(add(headStart, 64), \"Last resort address is already s\")\n        mstore(add(headStart, 96), \"et\")\n        tail := add(headStart, 128)\n    }\n    function abi_encode_tuple_t_stringliteral_c3972966c6b890cd04bd250ec8fd05d1950759334a3d8fa4e9bb3d0693e9952d__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"No valid commit\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_dd8f27f99c8575d947c48310b46d36796c8df82285fc83fecd33510610055413__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 19)\n        mstore(add(headStart, 64), \"Invalid commitIndex\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_fab9828a623b3dec5ff9fd3a2c3a6f583ee6577f264fc8a5c168e0454ba5a4ba__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 35)\n        mstore(add(headStart, 64), \"Last operation reserved for reco\")\n        mstore(add(headStart, 96), \"ver\")\n        tail := add(headStart, 128)\n    }\n    function abi_encode_tuple_t_uint256_t_address__to_t_uint256_t_address__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint256_t_address_payable__to_t_uint256_t_address__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint256_t_uint256__to_t_uint256_t_uint256__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n    }\n    function abi_encode_tuple_t_uint256_t_uint256_t_address_payable__to_t_uint256_t_uint256_t_address__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 96)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n        mstore(add(headStart, 64), and(value2, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint256_t_uint256_t_uint256_t_address_payable__to_t_uint256_t_uint256_t_uint256_t_address__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 128)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint32_t_uint32__to_t_uint32_t_uint32__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        let _1 := 0xffffffff\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n    }\n    function abi_encode_tuple_t_uint8__to_t_uint8__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, 0xff))\n    }\n    function calldata_array_index_range_access_t_bytes_calldata_ptr(offset, length, startIndex, endIndex) -> offsetOut, lengthOut\n    {\n        if gt(startIndex, endIndex) { revert(offsetOut, offsetOut) }\n        if gt(endIndex, length) { revert(offsetOut, offsetOut) }\n        offsetOut := add(offset, startIndex)\n        lengthOut := sub(endIndex, startIndex)\n    }\n    function checked_add_t_uint256(x, y) -> sum\n    {\n        if gt(x, not(y)) { panic_error_0x11() }\n        sum := add(x, y)\n    }\n    function checked_add_t_uint32(x, y) -> sum\n    {\n        let _1 := 0xffffffff\n        let x_1 := and(x, _1)\n        let y_1 := and(y, _1)\n        if gt(x_1, sub(_1, y_1)) { panic_error_0x11() }\n        sum := add(x_1, y_1)\n    }\n    function checked_div_t_uint256(x, y) -> r\n    {\n        if iszero(y) { panic_error_0x12() }\n        r := div(x, y)\n    }\n    function checked_div_t_uint32(x, y) -> r\n    {\n        let _1 := 0xffffffff\n        let y_1 := and(y, _1)\n        if iszero(y_1) { panic_error_0x12() }\n        r := div(and(x, _1), y_1)\n    }\n    function checked_mul_t_uint256(x, y) -> product\n    {\n        if and(iszero(iszero(x)), gt(y, div(not(0), x))) { panic_error_0x11() }\n        product := mul(x, y)\n    }\n    function checked_mul_t_uint32(x, y) -> product\n    {\n        let _1 := 0xffffffff\n        let x_1 := and(x, _1)\n        let y_1 := and(y, _1)\n        if and(iszero(iszero(x_1)), gt(y_1, div(_1, x_1))) { panic_error_0x11() }\n        product := mul(x_1, y_1)\n    }\n    function checked_sub_t_uint256(x, y) -> diff\n    {\n        if lt(x, y) { panic_error_0x11() }\n        diff := sub(x, y)\n    }\n    function checked_sub_t_uint32(x, y) -> diff\n    {\n        let _1 := 0xffffffff\n        let x_1 := and(x, _1)\n        let y_1 := and(y, _1)\n        if lt(x_1, y_1) { panic_error_0x11() }\n        diff := sub(x_1, y_1)\n    }\n    function checked_sub_t_uint8(x, y) -> diff\n    {\n        let x_1 := and(x, 0xff)\n        let y_1 := and(y, 0xff)\n        if lt(x_1, y_1) { panic_error_0x11() }\n        diff := sub(x_1, y_1)\n    }\n    function copy_memory_to_memory(src, dst, length)\n    {\n        let i := 0\n        for { } lt(i, length) { i := add(i, 32) }\n        {\n            mstore(add(dst, i), mload(add(src, i)))\n        }\n        if gt(i, length) { mstore(add(dst, length), 0) }\n    }\n    function finalize_allocation(memPtr, size)\n    {\n        let newFreePtr := add(memPtr, and(add(size, 31), not(31)))\n        if or(gt(newFreePtr, 0xffffffffffffffff), lt(newFreePtr, memPtr))\n        {\n            mstore(0, shl(224, 0x4e487b71))\n            mstore(4, 0x41)\n            revert(0, 0x24)\n        }\n        mstore(64, newFreePtr)\n    }\n    function increment_t_uint32(value) -> ret\n    {\n        let _1 := 0xffffffff\n        let value_1 := and(value, _1)\n        if eq(value_1, _1) { panic_error_0x11() }\n        ret := add(value_1, 1)\n    }\n    function increment_t_uint8(value) -> ret\n    {\n        let value_1 := and(value, 0xff)\n        if eq(value_1, 0xff) { panic_error_0x11() }\n        ret := add(value_1, 1)\n    }\n    function mod_t_uint32(x, y) -> r\n    {\n        let _1 := 0xffffffff\n        let y_1 := and(y, _1)\n        if iszero(y_1) { panic_error_0x12() }\n        r := mod(and(x, _1), y_1)\n    }\n    function panic_error_0x11()\n    {\n        mstore(0, shl(224, 0x4e487b71))\n        mstore(4, 0x11)\n        revert(0, 0x24)\n    }\n    function panic_error_0x12()\n    {\n        mstore(0, shl(224, 0x4e487b71))\n        mstore(4, 0x12)\n        revert(0, 0x24)\n    }\n    function return_data_selector() -> sig\n    {\n        if gt(returndatasize(), 3)\n        {\n            returndatacopy(sig, sig, 4)\n            sig := shr(224, mload(sig))\n        }\n    }\n    function try_decode_error_message() -> ret\n    {\n        if lt(returndatasize(), 0x44) { leave }\n        let data := mload(64)\n        let _1 := not(3)\n        returndatacopy(data, 4, add(returndatasize(), _1))\n        let offset := mload(data)\n        let _2 := returndatasize()\n        let _3 := 0xffffffffffffffff\n        if or(gt(offset, _3), gt(add(offset, 0x24), _2)) { leave }\n        let msg := add(data, offset)\n        let length := mload(msg)\n        if gt(length, _3) { leave }\n        if gt(add(add(msg, length), 0x20), add(add(data, returndatasize()), _1)) { leave }\n        finalize_allocation(data, add(add(offset, length), 0x20))\n        ret := msg\n    }\n    function validator_revert_address(value)\n    {\n        if iszero(eq(value, and(value, sub(shl(160, 1), 1)))) { revert(0, 0) }\n    }\n    function validator_revert_bytes4(value)\n    {\n        if iszero(eq(value, and(value, shl(224, 0xffffffff)))) { revert(0, 0) }\n    }\n}",
       "id": 8,
       "language": "Yul",
       "name": "#utility.yul"
     }
   ],
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-  "source": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.4;\n\nimport \"./TokenTracker.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\ncontract ONEWallet is TokenTracker {\n    event InsufficientFund(uint256 amount, uint256 balance, address dest);\n    event ExceedDailyLimit(uint256 amount, uint256 limit, uint256 current, address dest);\n    event UnknownTransferError(address dest);\n    event LastResortAddressNotSet();\n    event PaymentReceived(uint256 amount, address from);\n    event PaymentSent(uint256 amount, address dest);\n    event AutoRecoveryTriggered(address from);\n    event RecoveryFailure();\n\n    /// In future versions, it is planned that we may allow the user to extend the wallet's life through a function call. When that is implemented, the following variables may no longer be immutable, with the exception of root which shall serve as an identifier of the wallet\n    bytes32 immutable root; // Note: @ivan brought up a good point in reducing this to 16-bytes so hash of two consecutive nodes can be done in a single word (to save gas and reduce blockchain clutter). Let's not worry about that for now and re-evalaute this later.\n    uint8 immutable height; // including the root. e.g. for a tree with 4 leaves, the height is 3.\n    uint8 immutable interval; // otp interval in seconds, default is 30\n    uint32 immutable t0; // starting time block (effectiveTime (in ms) / interval)\n    uint32 immutable lifespan;  // in number of block (e.g. 1 block per [interval] seconds)\n    uint8 immutable maxOperationsPerInterval; // number of transactions permitted per OTP interval. Each transaction shall have a unique nonce. The nonce is auto-incremented within each interval\n\n    /// global mutable variables\n    address payable lastResortAddress; // where money will be sent during a recovery process (or when the wallet is beyond its lifespan)\n    uint256 dailyLimit; // uint128 is sufficient, but uint256 is more efficient since EVM works with 32-byte words.\n    uint256 spentToday; // note: instead of tracking the money spent for the last 24h, we are simply tracking money spent per 24h block based on UTC time. It is good enough for now, but we may want to change this later.\n    uint32 lastTransferDay;\n\n    /// nonce tracking\n    mapping(uint32 => uint8) nonces; // keys: otp index (=timestamp in seconds / interval - t0); values: the expected nonce for that otp interval. An reveal with a nonce less than the expected value will be rejected\n    uint32[] nonceTracker; // list of nonces keys that have a non-zero value. keys cannot possibly result a successful reveal (indices beyond REVEAL_MAX_DELAY old) are auto-deleted during a clean up procedure that is called every time the nonces are incremented for some key. For each deleted key, the corresponding key in nonces will also be deleted. So the size of nonceTracker and nonces are both bounded.\n\n    // constants\n    uint32 constant REVEAL_MAX_DELAY = 60;\n    uint32 constant SECONDS_PER_DAY = 86400;\n    uint256 constant AUTO_RECOVERY_TRIGGER_AMOUNT = 1 ether;\n    uint32 constant MAX_COMMIT_SIZE = 120;\n\n    uint32 constant majorVersion = 0x7; // a change would require client to migrate\n    uint32 constant minorVersion = 0x1; // a change would not require the client to migrate\n\n    enum OperationType {\n        TRACK, UNTRACK, TRANSFER_TOKEN, OVERRIDE_TRACK, TRANSFER, SET_RECOVERY_ADDRESS, RECOVER\n    }\n    /// commit management\n    struct Commit {\n        bytes32 hash;\n        bytes32 paramsHash;\n        bytes32 verificationHash;\n        uint32 timestamp;\n        bool completed;\n    }\n\n    bytes32[] commits; // self-clean on commit (auto delete commits that are beyond REVEAL_MAX_DELAY), so it's bounded by the number of commits an attacker can spam within REVEAL_MAX_DELAY time in the worst case, which is not too bad.\n    mapping(bytes32 => Commit[]) commitLocker;\n\n\n    constructor(bytes32 root_, uint8 height_, uint8 interval_, uint32 t0_, uint32 lifespan_, uint8 maxOperationsPerInterval_,\n        address payable lastResortAddress_, uint256 dailyLimit_)\n    {\n        root = root_;\n        height = height_;\n        interval = interval_;\n        t0 = t0_;\n        lifespan = lifespan_;\n        lastResortAddress = lastResortAddress_;\n        dailyLimit = dailyLimit_;\n        maxOperationsPerInterval = maxOperationsPerInterval_;\n    }\n\n    receive() external payable {\n        emit PaymentReceived(msg.value, msg.sender);\n        if (msg.value != AUTO_RECOVERY_TRIGGER_AMOUNT) {\n            return;\n        }\n        if (msg.sender != lastResortAddress) {\n            return;\n        }\n        if (lastResortAddress == address(0)) {\n            return;\n        }\n        if (msg.sender == address(this)) {\n            return;\n        }\n        emit AutoRecoveryTriggered(msg.sender);\n        require(_drain());\n    }\n\n\n    function retire() external returns (bool)\n    {\n        require(uint32(block.timestamp / interval) - t0 > lifespan, \"Too early to retire\");\n        require(lastResortAddress != address(0), \"Last resort address is not set\");\n        require(_drain(), \"Recovery failed\");\n        return true;\n    }\n\n    function getInfo() external view returns (bytes32, uint8, uint8, uint32, uint32, uint8, address, uint256)\n    {\n        return (root, height, interval, t0, lifespan, maxOperationsPerInterval, lastResortAddress, dailyLimit);\n    }\n\n    function getVersion() external pure returns (uint32, uint32)\n    {\n        return (majorVersion, minorVersion);\n    }\n\n    function getCurrentSpending() external view returns (uint256, uint256)\n    {\n        return (spentToday, lastTransferDay);\n    }\n\n    function getNonce() external view returns (uint8)\n    {\n        uint32 index = uint32(block.timestamp) / interval - t0;\n        return nonces[index];\n    }\n\n    function getCommits() external pure returns (bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory){\n        revert(\"Deprecated\");\n    }\n\n    function getAllCommits() external view returns (bytes32[] memory, bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory)\n    {\n        uint32 numCommits = 0;\n        for (uint32 i = 0; i < commits.length; i++) {\n            Commit[] storage cc = commitLocker[commits[i]];\n            numCommits += uint32(cc.length);\n        }\n        bytes32[] memory hashes = new bytes32[](numCommits);\n        bytes32[] memory paramHashes = new bytes32[](numCommits);\n        bytes32[] memory verificationHashes = new bytes32[](numCommits);\n        uint32[] memory timestamps = new uint32[](numCommits);\n        bool[] memory completed = new bool[](numCommits);\n        uint32 index = 0;\n        for (uint32 i = 0; i < commits.length; i++) {\n            Commit[] storage cc = commitLocker[commits[i]];\n            for (uint32 j = 0; j < cc.length; j++) {\n                Commit storage c = cc[j];\n                hashes[index] = c.hash;\n                paramHashes[index] = c.paramsHash;\n                verificationHashes[index] = c.verificationHash;\n                timestamps[index] = c.timestamp;\n                completed[index] = c.completed;\n                index++;\n            }\n        }\n        return (hashes, paramHashes, verificationHashes, timestamps, completed);\n    }\n\n    function findCommit(bytes32 /*hash*/) external pure returns (bytes32, bytes32, uint32, bool){\n        revert(\"Deprecated\");\n    }\n\n    function lookupCommit(bytes32 hash) external view returns (bytes32[] memory, bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory){\n        Commit[] storage cc = commitLocker[hash];\n        bytes32[] memory hashes = new bytes32[](cc.length);\n        bytes32[] memory paramHashes = new bytes32[](cc.length);\n        bytes32[] memory verificationHashes = new bytes32[](cc.length);\n        uint32[] memory timestamps = new uint32[](cc.length);\n        bool[] memory completed = new bool[](cc.length);\n        for (uint32 i = 0; i < cc.length; i++) {\n            Commit storage c = cc[i];\n            hashes[i] = c.hash;\n            paramHashes[i] = c.paramsHash;\n            verificationHashes[i] = c.verificationHash;\n            timestamps[i] = c.timestamp;\n            completed[i] = c.completed;\n        }\n        return (hashes, paramHashes, verificationHashes, timestamps, completed);\n    }\n\n    function commit(bytes32 hash, bytes32 paramsHash, bytes32 verificationHash) external {\n        _cleanupCommits();\n        Commit memory nc = Commit(hash, paramsHash, verificationHash, uint32(block.timestamp), false);\n        require(commits.length < MAX_COMMIT_SIZE, \"Too many commits\");\n        commits.push(hash);\n        commitLocker[hash].push(nc);\n    }\n\n    /// This function sends all remaining funds of the wallet to `lastResortAddress`. The caller should verify that `lastResortAddress` is not null.\n    /// TODO: also transfer all tracked ERC20, 721, 1155 tokens to `lastResortAddress`\n    function _drain() internal returns (bool) {\n        // this may be triggered after revealing the proof, and we must prevent revert in all cases\n        (bool success,) = lastResortAddress.call{value : address(this).balance}(\"\");\n        return success;\n    }\n\n    function _transfer(address payable dest, uint256 amount) internal returns (bool) {\n        uint32 day = uint32(block.timestamp / SECONDS_PER_DAY);\n        if (day > lastTransferDay) {\n            spentToday = 0;\n            lastTransferDay = day;\n        }\n        if (spentToday + amount > dailyLimit) {\n            emit ExceedDailyLimit(amount, dailyLimit, spentToday, dest);\n            return false;\n        }\n        if (address(this).balance < amount) {\n            emit InsufficientFund(amount, address(this).balance, dest);\n            return false;\n        }\n        (bool success,) = dest.call{value : amount}(\"\");\n        // we do not want to revert the whole transaction if this operation fails, since EOTP is already revealed\n        if (!success) {\n            emit UnknownTransferError(dest);\n            return false;\n        }\n        spentToday += amount;\n        emit PaymentSent(amount, dest);\n        return true;\n    }\n\n    function _recover() internal returns (bool){\n        if (lastResortAddress == address(0)) {\n            emit LastResortAddressNotSet();\n            return false;\n        }\n        if (!_drain()) {\n            emit RecoveryFailure();\n            return false;\n        }\n        return true;\n    }\n\n    function _setRecoveryAddress(address payable lastResortAddress_) internal {\n        require(lastResortAddress == address(0), \"Last resort address is already set\");\n        lastResortAddress = lastResortAddress_;\n    }\n\n    function _transferToken(TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount, bytes memory data) internal {\n        if (tokenType == TokenType.ERC20) {\n            try IERC20(contractAddress).transfer(dest, amount) returns (bool success){\n                if (success) {\n                    _trackToken(tokenType, contractAddress, tokenId);\n                    emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n                    return;\n                }\n                emit TokenTransferFailed(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        } else if (tokenType == TokenType.ERC721) {\n            try IERC721(contractAddress).safeTransferFrom(address(this), dest, tokenId, data){\n                emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        } else if (tokenType == TokenType.ERC1155) {\n            try IERC1155(contractAddress).safeTransferFrom(address(this), dest, tokenId, amount, data) {\n                emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        }\n    }\n\n    /// Provides commitHash, paramsHash, and verificationHash given the parameters\n    function _getRevealHash(bytes32 neighbor, uint32 indexWithNonce, bytes32 eotp,\n        OperationType operationType, TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount, bytes calldata data) pure internal returns (bytes32, bytes32) {\n        bytes32 hash = keccak256(bytes.concat(neighbor, bytes32(bytes4(indexWithNonce)), eotp));\n        bytes32 paramsHash = bytes32(0);\n        if (operationType == OperationType.TRANSFER) {\n            paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest))), bytes32(amount)));\n        } else if (operationType == OperationType.RECOVER) {\n            paramsHash = bytes32(0);\n        } else if (operationType == OperationType.SET_RECOVERY_ADDRESS) {\n            paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest)))));\n        } else {\n            bytes memory packed = bytes.concat(\n                bytes32(uint256(operationType)),\n                bytes32(uint256(tokenType)),\n                bytes32(bytes20(contractAddress)),\n                bytes32(tokenId),\n                bytes32(bytes20(dest)),\n                bytes32(amount),\n                data\n            );\n            paramsHash = keccak256(bytes.concat(packed));\n        }\n        return (hash, paramsHash);\n    }\n\n\n    function reveal(bytes32[] calldata neighbors, uint32 indexWithNonce, bytes32 eotp,\n        OperationType operationType, TokenType tokenType, address contractAddress, uint256 tokenId, address payable dest, uint256 amount, bytes calldata data)\n    external {\n        _isCorrectProof(neighbors, indexWithNonce, eotp);\n        (bytes32 commitHash, bytes32 paramsHash) = _getRevealHash(neighbors[0], indexWithNonce, eotp,\n            operationType, tokenType, contractAddress, tokenId, dest, amount, data);\n        uint32 commitIndex = _verifyReveal(commitHash, indexWithNonce, paramsHash, eotp);\n        _completeReveal(commitHash, commitIndex);\n        // No revert should occur below this point\n        if (operationType == OperationType.TRACK) {\n            if (data.length > 0) {\n                _multiTrack(data);\n            } else {\n                _trackToken(tokenType, contractAddress, tokenId);\n            }\n        } else if (operationType == OperationType.UNTRACK) {\n            if (data.length > 0) {\n                _untrackToken(tokenType, contractAddress, tokenId);\n            } else {\n                _multiUntrack(data);\n            }\n        } else if (operationType == OperationType.TRANSFER_TOKEN) {\n            _transferToken(tokenType, contractAddress, tokenId, dest, amount, data);\n        } else if (operationType == OperationType.OVERRIDE_TRACK) {\n            _overrideTrackWithBytes(data);\n        } else if (operationType == OperationType.TRANSFER) {\n            _transfer(dest, amount);\n        } else if (operationType == OperationType.RECOVER) {\n            _recover();\n        } else if (operationType == OperationType.SET_RECOVERY_ADDRESS) {\n            _setRecoveryAddress(dest);\n        }\n    }\n\n    /// This is just a wrapper around a modifier previously called `isCorrectProof`, to avoid \"Stack too deep\" error. Duh.\n    function _isCorrectProof(bytes32[] calldata neighbors, uint32 position, bytes32 eotp) view internal {\n        require(neighbors.length == height - 1, \"Not enough neighbors provided\");\n        bytes32 h = sha256(bytes.concat(eotp));\n        for (uint8 i = 0; i < height - 1; i++) {\n            if ((position & 0x01) == 0x01) {\n                h = sha256(bytes.concat(neighbors[i], h));\n            } else {\n                h = sha256(bytes.concat(h, neighbors[i]));\n            }\n            position >>= 1;\n        }\n        require(root == h, \"Proof is incorrect\");\n        return;\n    }\n\n    /// Remove old commits from storage, where the commit's timestamp is older than block.timestamp - REVEAL_MAX_DELAY. The purpose is to remove dangling data from blockchain, and prevent commits grow unbounded. This is executed at commit time. The committer pays for the gas of this cleanup. Therefore, any attacker who intend to spam commits would be disincentivized. The attacker would not succeed in preventing any normal operation by the user.\n    function _cleanupCommits() internal {\n        uint32 timelyIndex = 0;\n        uint32 bt = uint32(block.timestamp);\n        // go through past commits chronologically, starting from the oldest, and find the first commit that is not older than block.timestamp - REVEAL_MAX_DELAY.\n        for (; timelyIndex < commits.length; timelyIndex++) {\n            bytes32 hash = commits[timelyIndex];\n            Commit[] storage cc = commitLocker[hash];\n            // We may skip because the commit is already cleaned up and is considered \"untimely\".\n            if (cc.length == 0) {\n                continue;\n            }\n            // We take the first entry in `cc` as the timestamp for all commits under commit hash `hash`, because the first entry represents the oldest commit and only commit if an attacker is not attacking this wallet. If an attacker is front-running commits, the first entry may be from the attacker, but its timestamp should be identical to the user's commit (or close enough to the user's commit, if network is a bit congested)\n            Commit storage c = cc[0];\n        unchecked {\n            if (c.timestamp >= bt - REVEAL_MAX_DELAY) {\n                break;\n            }\n        }\n        }\n        // Now `timelyIndex` holds the index of the first commit that is timely. All commits at an index less than `timelyIndex` must be deleted;\n        if (timelyIndex == 0) {\n            // no commit is older than block.timestamp - REVEAL_MAX_DELAY. Nothing needs to be cleaned up\n            return;\n        }\n        // Delete Commit instances for commits that are are older than block.timestamp - REVEAL_MAX_DELAY\n        for (uint32 i = 0; i < timelyIndex; i++) {\n            bytes32 hash = commits[i];\n            Commit[] storage cc = commitLocker[hash];\n            for (uint32 j = 0; j < cc.length; j++) {\n                delete cc[j];\n            }\n            delete commitLocker[hash];\n        }\n        // Shift all commit hashes up by `timelyIndex` positions, and discard `commitIndex` number of hashes at the end of the array\n        // This process erases old commits\n        uint32 len = uint32(commits.length);\n        for (uint32 i = timelyIndex; i < len; i++) {\n        unchecked{\n            commits[i - timelyIndex] = commits[i];\n        }\n        }\n        for (uint32 i = 0; i < timelyIndex; i++) {\n            commits.pop();\n        }\n        // TODO (@polymorpher): upgrade the above code after solidity implements proper support for struct-array memory-storage copy operation.\n    }\n\n    function _isRevealTimely(uint32 commitTime) view internal returns (bool)\n    {\n        return uint32(block.timestamp) - commitTime < REVEAL_MAX_DELAY;\n    }\n\n    /// This function verifies that the first valid entry with respect to the given `eotp` in `commitLocker[hash]` matches the provided `paramsHash` and `verificationHash`. An entry is valid with respect to `eotp` iff `h3(entry.paramsHash . eotp)` equals `entry.verificationHash`\n    function _verifyReveal(bytes32 hash, uint32 indexWithNonce, bytes32 paramsHash, bytes32 eotp) view internal returns (uint32)\n    {\n        uint32 index = indexWithNonce / maxOperationsPerInterval;\n        uint8 nonce = uint8(indexWithNonce % maxOperationsPerInterval);\n        Commit[] storage cc = commitLocker[hash];\n        require(cc.length > 0, \"No commit found\");\n        for (uint32 i = 0; i < cc.length; i++) {\n            Commit storage c = cc[i];\n            bytes32 expectedVerificationHash = keccak256(bytes.concat(c.paramsHash, eotp));\n            if (c.verificationHash != expectedVerificationHash) {\n                // Invalid entry. Ignore\n                continue;\n            }\n            require(c.paramsHash == paramsHash, \"Parameter hash mismatch\");\n            uint32 counter = c.timestamp / interval - t0;\n            require(counter == index, \"Index - timestamp mismatch\");\n            uint8 expectedNonce = nonces[counter];\n            require(nonce >= expectedNonce, \"Nonce too low\");\n            require(!c.completed, \"Commit already completed\");\n            // This normally should not happen, but when the network is congested (regardless of whether due to an attacker's malicious acts or not), the legitimate reveal may become untimely. This may happen before the old commit is cleaned up by another fresh commit. We enforce this restriction so that the attacker would not have a lot of time to reverse-engineer a single EOTP or leaf using an old commit.\n            require(_isRevealTimely(c.timestamp), \"Reveal too late\");\n            return i;\n        }\n        revert(\"No valid commit\");\n    }\n\n    function _completeReveal(bytes32 commitHash, uint32 commitIndex) internal {\n        Commit[] storage cc = commitLocker[commitHash];\n        require(cc.length > 0, \"Invalid commit hash\");\n        require(cc.length > commitIndex, \"Invalid commitIndex\");\n        Commit storage c = cc[commitIndex];\n        require(c.timestamp > 0, \"Invalid commit timestamp\");\n        // should not happen\n        uint32 index = uint32(c.timestamp) / interval - t0;\n        _incrementNonce(index);\n        _cleanupNonces();\n        c.completed = true;\n    }\n\n    /// This function removes all tracked nonce values correspond to interval blocks that are older than block.timestamp - REVEAL_MAX_DELAY. In doing so, extraneous data in the blockchain is removed, and both nonces and nonceTracker are bounded in size.\n    function _cleanupNonces() internal {\n        uint32 tMin = uint32(block.timestamp) - REVEAL_MAX_DELAY;\n        uint32 indexMinUnadjusted = tMin / interval;\n        uint32 indexMin = 0;\n        if (indexMinUnadjusted > t0) {\n            indexMin = indexMinUnadjusted - t0;\n        }\n        uint32[] memory nonZeroNonces = new uint32[](nonceTracker.length);\n        uint32 numValidIndices = 0;\n        for (uint8 i = 0; i < nonceTracker.length; i++) {\n            uint32 index = nonceTracker[i];\n            if (index < indexMin) {\n                delete nonces[index];\n            } else {\n                nonZeroNonces[numValidIndices] = index;\n            unchecked {\n                numValidIndices++;\n            }\n            }\n        }\n        // TODO (@polymorpher): This can be later made more efficient by inline assembly. https://ethereum.stackexchange.com/questions/51891/how-to-pop-from-decrease-the-length-of-a-memory-array-in-solidity\n        uint32[] memory reducedArray = new uint32[](numValidIndices);\n        for (uint8 i = 0; i < numValidIndices; i++) {\n            reducedArray[i] = nonZeroNonces[i];\n        }\n        nonceTracker = reducedArray;\n    }\n\n    function _incrementNonce(uint32 index) internal {\n        uint8 v = nonces[index];\n        if (v == 0) {\n            nonceTracker.push(index);\n        }\n    unchecked{\n        nonces[index] = v + 1;\n    }\n    }\n}\n",
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+  "source": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.4;\n\nimport \"./TokenTracker.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\ncontract ONEWallet is TokenTracker {\n    event InsufficientFund(uint256 amount, uint256 balance, address dest);\n    event ExceedDailyLimit(uint256 amount, uint256 limit, uint256 current, address dest);\n    event UnknownTransferError(address dest);\n    event LastResortAddressNotSet();\n    event PaymentReceived(uint256 amount, address from);\n    event PaymentSent(uint256 amount, address dest);\n    event AutoRecoveryTriggered(address from);\n    event RecoveryFailure();\n\n    /// In future versions, it is planned that we may allow the user to extend the wallet's life through a function call. When that is implemented, the following variables may no longer be immutable, with the exception of root which shall serve as an identifier of the wallet\n    bytes32 immutable root; // Note: @ivan brought up a good point in reducing this to 16-bytes so hash of two consecutive nodes can be done in a single word (to save gas and reduce blockchain clutter). Let's not worry about that for now and re-evalaute this later.\n    uint8 immutable height; // including the root. e.g. for a tree with 4 leaves, the height is 3.\n    uint8 immutable interval; // otp interval in seconds, default is 30\n    uint32 immutable t0; // starting time block (effectiveTime (in ms) / interval)\n    uint32 immutable lifespan;  // in number of block (e.g. 1 block per [interval] seconds)\n    uint8 immutable maxOperationsPerInterval; // number of transactions permitted per OTP interval. Each transaction shall have a unique nonce. The nonce is auto-incremented within each interval\n    uint32 immutable _numLeaves; // 2 ** (height - 1)\n\n    /// global mutable variables\n    address payable lastResortAddress; // where money will be sent during a recovery process (or when the wallet is beyond its lifespan)\n    uint256 dailyLimit; // uint128 is sufficient, but uint256 is more efficient since EVM works with 32-byte words.\n    uint256 spentToday; // note: instead of tracking the money spent for the last 24h, we are simply tracking money spent per 24h block based on UTC time. It is good enough for now, but we may want to change this later.\n    uint32 lastTransferDay;\n\n    /// nonce tracking\n    mapping(uint32 => uint8) nonces; // keys: otp index (=timestamp in seconds / interval - t0); values: the expected nonce for that otp interval. An reveal with a nonce less than the expected value will be rejected\n    uint32[] nonceTracker; // list of nonces keys that have a non-zero value. keys cannot possibly result a successful reveal (indices beyond REVEAL_MAX_DELAY old) are auto-deleted during a clean up procedure that is called every time the nonces are incremented for some key. For each deleted key, the corresponding key in nonces will also be deleted. So the size of nonceTracker and nonces are both bounded.\n\n    // constants\n    uint32 constant REVEAL_MAX_DELAY = 60;\n    uint32 constant SECONDS_PER_DAY = 86400;\n    uint256 constant AUTO_RECOVERY_TRIGGER_AMOUNT = 1 ether;\n    uint32 constant MAX_COMMIT_SIZE = 120;\n\n    uint32 constant majorVersion = 0x7; // a change would require client to migrate\n    uint32 constant minorVersion = 0x3; // a change would not require the client to migrate\n\n    enum OperationType {\n        TRACK, UNTRACK, TRANSFER_TOKEN, OVERRIDE_TRACK, TRANSFER, SET_RECOVERY_ADDRESS, RECOVER,\n        REPLACE // reserved, not implemented yet. This is for replacing the root and set up new parameters (t0, lifespan)\n    }\n    /// commit management\n    struct Commit {\n        bytes32 hash;\n        bytes32 paramsHash;\n        bytes32 verificationHash;\n        uint32 timestamp;\n        bool completed;\n    }\n\n    bytes32[] commits; // self-clean on commit (auto delete commits that are beyond REVEAL_MAX_DELAY), so it's bounded by the number of commits an attacker can spam within REVEAL_MAX_DELAY time in the worst case, which is not too bad.\n    mapping(bytes32 => Commit[]) commitLocker;\n\n\n    constructor(bytes32 root_, uint8 height_, uint8 interval_, uint32 t0_, uint32 lifespan_, uint8 maxOperationsPerInterval_,\n        address payable lastResortAddress_, uint256 dailyLimit_)\n    {\n        root = root_;\n        height = height_;\n        interval = interval_;\n        t0 = t0_;\n        lifespan = lifespan_;\n        lastResortAddress = lastResortAddress_;\n        dailyLimit = dailyLimit_;\n        maxOperationsPerInterval = maxOperationsPerInterval_;\n        _numLeaves = uint32(2 ** (height_ - 1));\n    }\n\n    receive() external payable {\n        emit PaymentReceived(msg.value, msg.sender);\n        if (msg.value != AUTO_RECOVERY_TRIGGER_AMOUNT) {\n            return;\n        }\n        if (msg.sender != lastResortAddress) {\n            return;\n        }\n        if (lastResortAddress == address(0)) {\n            return;\n        }\n        if (msg.sender == address(this)) {\n            return;\n        }\n        emit AutoRecoveryTriggered(msg.sender);\n        require(_drain());\n    }\n\n\n    function retire() external returns (bool)\n    {\n        require(uint32(block.timestamp / interval) - t0 > lifespan, \"Too early to retire\");\n        require(lastResortAddress != address(0), \"Last resort address is not set\");\n        require(_drain(), \"Recovery failed\");\n        return true;\n    }\n\n    function getInfo() external view returns (bytes32, uint8, uint8, uint32, uint32, uint8, address, uint256)\n    {\n        return (root, height, interval, t0, lifespan, maxOperationsPerInterval, lastResortAddress, dailyLimit);\n    }\n\n    function getVersion() external pure returns (uint32, uint32)\n    {\n        return (majorVersion, minorVersion);\n    }\n\n    function getCurrentSpending() external view returns (uint256, uint256)\n    {\n        return (spentToday, lastTransferDay);\n    }\n\n    function getNonce() external view returns (uint8)\n    {\n        uint32 index = uint32(block.timestamp) / interval - t0;\n        return nonces[index];\n    }\n\n    function getCommits() external pure returns (bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory){\n        revert(\"Deprecated\");\n    }\n\n    function getAllCommits() external view returns (bytes32[] memory, bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory)\n    {\n        uint32 numCommits = 0;\n        for (uint32 i = 0; i < commits.length; i++) {\n            Commit[] storage cc = commitLocker[commits[i]];\n            numCommits += uint32(cc.length);\n        }\n        bytes32[] memory hashes = new bytes32[](numCommits);\n        bytes32[] memory paramHashes = new bytes32[](numCommits);\n        bytes32[] memory verificationHashes = new bytes32[](numCommits);\n        uint32[] memory timestamps = new uint32[](numCommits);\n        bool[] memory completed = new bool[](numCommits);\n        uint32 index = 0;\n        for (uint32 i = 0; i < commits.length; i++) {\n            Commit[] storage cc = commitLocker[commits[i]];\n            for (uint32 j = 0; j < cc.length; j++) {\n                Commit storage c = cc[j];\n                hashes[index] = c.hash;\n                paramHashes[index] = c.paramsHash;\n                verificationHashes[index] = c.verificationHash;\n                timestamps[index] = c.timestamp;\n                completed[index] = c.completed;\n                index++;\n            }\n        }\n        return (hashes, paramHashes, verificationHashes, timestamps, completed);\n    }\n\n    function findCommit(bytes32 /*hash*/) external pure returns (bytes32, bytes32, uint32, bool){\n        revert(\"Deprecated\");\n    }\n\n    function lookupCommit(bytes32 hash) external view returns (bytes32[] memory, bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory){\n        Commit[] storage cc = commitLocker[hash];\n        bytes32[] memory hashes = new bytes32[](cc.length);\n        bytes32[] memory paramHashes = new bytes32[](cc.length);\n        bytes32[] memory verificationHashes = new bytes32[](cc.length);\n        uint32[] memory timestamps = new uint32[](cc.length);\n        bool[] memory completed = new bool[](cc.length);\n        for (uint32 i = 0; i < cc.length; i++) {\n            Commit storage c = cc[i];\n            hashes[i] = c.hash;\n            paramHashes[i] = c.paramsHash;\n            verificationHashes[i] = c.verificationHash;\n            timestamps[i] = c.timestamp;\n            completed[i] = c.completed;\n        }\n        return (hashes, paramHashes, verificationHashes, timestamps, completed);\n    }\n\n    function commit(bytes32 hash, bytes32 paramsHash, bytes32 verificationHash) external {\n        _cleanupCommits();\n        Commit memory nc = Commit(hash, paramsHash, verificationHash, uint32(block.timestamp), false);\n        require(commits.length < MAX_COMMIT_SIZE, \"Too many commits\");\n        commits.push(hash);\n        commitLocker[hash].push(nc);\n    }\n\n    /// This function sends all remaining funds of the wallet to `lastResortAddress`. The caller should verify that `lastResortAddress` is not null.\n    /// TODO: also transfer all tracked ERC20, 721, 1155 tokens to `lastResortAddress`\n    function _drain() internal returns (bool) {\n        // this may be triggered after revealing the proof, and we must prevent revert in all cases\n        (bool success,) = lastResortAddress.call{value : address(this).balance}(\"\");\n        return success;\n    }\n\n    function _transfer(address payable dest, uint256 amount) internal returns (bool) {\n        uint32 day = uint32(block.timestamp / SECONDS_PER_DAY);\n        if (day > lastTransferDay) {\n            spentToday = 0;\n            lastTransferDay = day;\n        }\n        if (spentToday + amount > dailyLimit) {\n            emit ExceedDailyLimit(amount, dailyLimit, spentToday, dest);\n            return false;\n        }\n        if (address(this).balance < amount) {\n            emit InsufficientFund(amount, address(this).balance, dest);\n            return false;\n        }\n        spentToday += amount;\n        (bool success,) = dest.call{value : amount}(\"\");\n        // we do not want to revert the whole transaction if this operation fails, since EOTP is already revealed\n        if (!success) {\n            spentToday -= amount;\n            emit UnknownTransferError(dest);\n            return false;\n        }\n\n        emit PaymentSent(amount, dest);\n        return true;\n    }\n\n    function _recover() internal returns (bool){\n        if (lastResortAddress == address(0)) {\n            emit LastResortAddressNotSet();\n            return false;\n        }\n        if (!_drain()) {\n            emit RecoveryFailure();\n            return false;\n        }\n        return true;\n    }\n\n    function _setRecoveryAddress(address payable lastResortAddress_) internal {\n        require(lastResortAddress == address(0), \"Last resort address is already set\");\n        lastResortAddress = lastResortAddress_;\n    }\n\n    function _transferToken(TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount, bytes memory data) internal {\n        if (tokenType == TokenType.ERC20) {\n            try IERC20(contractAddress).transfer(dest, amount) returns (bool success){\n                if (success) {\n                    _trackToken(tokenType, contractAddress, tokenId);\n                    emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n                    return;\n                }\n                emit TokenTransferFailed(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        } else if (tokenType == TokenType.ERC721) {\n            try IERC721(contractAddress).safeTransferFrom(address(this), dest, tokenId, data){\n                emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        } else if (tokenType == TokenType.ERC1155) {\n            try IERC1155(contractAddress).safeTransferFrom(address(this), dest, tokenId, amount, data) {\n                emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        }\n    }\n\n    /// Provides commitHash, paramsHash, and verificationHash given the parameters\n    function _getRevealHash(bytes32 neighbor, uint32 indexWithNonce, bytes32 eotp,\n        OperationType operationType, TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount, bytes calldata data) pure internal returns (bytes32, bytes32) {\n        bytes32 hash = keccak256(bytes.concat(neighbor, bytes32(bytes4(indexWithNonce)), eotp));\n        bytes32 paramsHash = bytes32(0);\n        if (operationType == OperationType.TRANSFER) {\n            paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest))), bytes32(amount)));\n        } else if (operationType == OperationType.RECOVER) {\n            paramsHash = keccak256(data);\n        } else if (operationType == OperationType.SET_RECOVERY_ADDRESS) {\n            paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest)))));\n        } else {\n            bytes memory packed = bytes.concat(\n                bytes32(uint256(operationType)),\n                bytes32(uint256(tokenType)),\n                bytes32(bytes20(contractAddress)),\n                bytes32(tokenId),\n                bytes32(bytes20(dest)),\n                bytes32(amount),\n                data\n            );\n            paramsHash = keccak256(bytes.concat(packed));\n        }\n        return (hash, paramsHash);\n    }\n\n\n    function reveal(bytes32[] calldata neighbors, uint32 indexWithNonce, bytes32 eotp,\n        OperationType operationType, TokenType tokenType, address contractAddress, uint256 tokenId, address payable dest, uint256 amount, bytes calldata data)\n    external {\n        _isCorrectProof(neighbors, indexWithNonce, eotp);\n        if (indexWithNonce == _numLeaves - 1) {\n            require(operationType == OperationType.RECOVER, \"Last operation reserved for recover\");\n        }\n        (bytes32 commitHash, bytes32 paramsHash) = _getRevealHash(neighbors[0], indexWithNonce, eotp,\n            operationType, tokenType, contractAddress, tokenId, dest, amount, data);\n        uint32 commitIndex = _verifyReveal(commitHash, indexWithNonce, paramsHash, eotp);\n        _completeReveal(commitHash, commitIndex);\n        // No revert should occur below this point\n        if (operationType == OperationType.TRACK) {\n            if (data.length > 0) {\n                _multiTrack(data);\n            } else {\n                _trackToken(tokenType, contractAddress, tokenId);\n            }\n        } else if (operationType == OperationType.UNTRACK) {\n            if (data.length > 0) {\n                _untrackToken(tokenType, contractAddress, tokenId);\n            } else {\n                _multiUntrack(data);\n            }\n        } else if (operationType == OperationType.TRANSFER_TOKEN) {\n            _transferToken(tokenType, contractAddress, tokenId, dest, amount, data);\n        } else if (operationType == OperationType.OVERRIDE_TRACK) {\n            _overrideTrackWithBytes(data);\n        } else if (operationType == OperationType.TRANSFER) {\n            _transfer(dest, amount);\n        } else if (operationType == OperationType.RECOVER) {\n            _recover();\n        } else if (operationType == OperationType.SET_RECOVERY_ADDRESS) {\n            _setRecoveryAddress(dest);\n        }\n    }\n\n    /// This is just a wrapper around a modifier previously called `isCorrectProof`, to avoid \"Stack too deep\" error. Duh.\n    function _isCorrectProof(bytes32[] calldata neighbors, uint32 position, bytes32 eotp) view internal {\n        require(neighbors.length == height - 1, \"Not enough neighbors provided\");\n        bytes32 h = sha256(bytes.concat(eotp));\n        if (position == _numLeaves - 1) {\n            // special case: recover only\n            h = eotp;\n        }\n        for (uint8 i = 0; i < height - 1; i++) {\n            if ((position & 0x01) == 0x01) {\n                h = sha256(bytes.concat(neighbors[i], h));\n            } else {\n                h = sha256(bytes.concat(h, neighbors[i]));\n            }\n            position >>= 1;\n        }\n        require(root == h, \"Proof is incorrect\");\n        return;\n    }\n\n    /// Remove old commits from storage, where the commit's timestamp is older than block.timestamp - REVEAL_MAX_DELAY. The purpose is to remove dangling data from blockchain, and prevent commits grow unbounded. This is executed at commit time. The committer pays for the gas of this cleanup. Therefore, any attacker who intend to spam commits would be disincentivized. The attacker would not succeed in preventing any normal operation by the user.\n    function _cleanupCommits() internal {\n        uint32 timelyIndex = 0;\n        uint32 bt = uint32(block.timestamp);\n        // go through past commits chronologically, starting from the oldest, and find the first commit that is not older than block.timestamp - REVEAL_MAX_DELAY.\n        for (; timelyIndex < commits.length; timelyIndex++) {\n            bytes32 hash = commits[timelyIndex];\n            Commit[] storage cc = commitLocker[hash];\n            // We may skip because the commit is already cleaned up and is considered \"untimely\".\n            if (cc.length == 0) {\n                continue;\n            }\n            // We take the first entry in `cc` as the timestamp for all commits under commit hash `hash`, because the first entry represents the oldest commit and only commit if an attacker is not attacking this wallet. If an attacker is front-running commits, the first entry may be from the attacker, but its timestamp should be identical to the user's commit (or close enough to the user's commit, if network is a bit congested)\n            Commit storage c = cc[0];\n        unchecked {\n            if (c.timestamp >= bt - REVEAL_MAX_DELAY) {\n                break;\n            }\n        }\n        }\n        // Now `timelyIndex` holds the index of the first commit that is timely. All commits at an index less than `timelyIndex` must be deleted;\n        if (timelyIndex == 0) {\n            // no commit is older than block.timestamp - REVEAL_MAX_DELAY. Nothing needs to be cleaned up\n            return;\n        }\n        // Delete Commit instances for commits that are are older than block.timestamp - REVEAL_MAX_DELAY\n        for (uint32 i = 0; i < timelyIndex; i++) {\n            bytes32 hash = commits[i];\n            Commit[] storage cc = commitLocker[hash];\n            for (uint32 j = 0; j < cc.length; j++) {\n                delete cc[j];\n            }\n            delete commitLocker[hash];\n        }\n        // Shift all commit hashes up by `timelyIndex` positions, and discard `commitIndex` number of hashes at the end of the array\n        // This process erases old commits\n        uint32 len = uint32(commits.length);\n        for (uint32 i = timelyIndex; i < len; i++) {\n        unchecked{\n            commits[i - timelyIndex] = commits[i];\n        }\n        }\n        for (uint32 i = 0; i < timelyIndex; i++) {\n            commits.pop();\n        }\n        // TODO (@polymorpher): upgrade the above code after solidity implements proper support for struct-array memory-storage copy operation.\n    }\n\n    function _isRevealTimely(uint32 commitTime) view internal returns (bool)\n    {\n        return uint32(block.timestamp) - commitTime < REVEAL_MAX_DELAY;\n    }\n\n    /// This function verifies that the first valid entry with respect to the given `eotp` in `commitLocker[hash]` matches the provided `paramsHash` and `verificationHash`. An entry is valid with respect to `eotp` iff `h3(entry.paramsHash . eotp)` equals `entry.verificationHash`\n    function _verifyReveal(bytes32 hash, uint32 indexWithNonce, bytes32 paramsHash, bytes32 eotp) view internal returns (uint32)\n    {\n        uint32 index = indexWithNonce / maxOperationsPerInterval;\n        uint8 nonce = uint8(indexWithNonce % maxOperationsPerInterval);\n        Commit[] storage cc = commitLocker[hash];\n        require(cc.length > 0, \"No commit found\");\n        for (uint32 i = 0; i < cc.length; i++) {\n            Commit storage c = cc[i];\n            bytes32 expectedVerificationHash = keccak256(bytes.concat(c.paramsHash, eotp));\n            if (c.verificationHash != expectedVerificationHash) {\n                // Invalid entry. Ignore\n                continue;\n            }\n            require(c.paramsHash == paramsHash, \"Parameter hash mismatch\");\n            uint32 counter = c.timestamp / interval - t0;\n            require(counter == index, \"Index - timestamp mismatch\");\n            uint8 expectedNonce = nonces[counter];\n            require(nonce >= expectedNonce, \"Nonce too low\");\n            require(!c.completed, \"Commit already completed\");\n            // This normally should not happen, but when the network is congested (regardless of whether due to an attacker's malicious acts or not), the legitimate reveal may become untimely. This may happen before the old commit is cleaned up by another fresh commit. We enforce this restriction so that the attacker would not have a lot of time to reverse-engineer a single EOTP or leaf using an old commit.\n            require(_isRevealTimely(c.timestamp), \"Reveal too late\");\n            return i;\n        }\n        revert(\"No valid commit\");\n    }\n\n    function _completeReveal(bytes32 commitHash, uint32 commitIndex) internal {\n        Commit[] storage cc = commitLocker[commitHash];\n        require(cc.length > 0, \"Invalid commit hash\");\n        require(cc.length > commitIndex, \"Invalid commitIndex\");\n        Commit storage c = cc[commitIndex];\n        require(c.timestamp > 0, \"Invalid commit timestamp\");\n        // should not happen\n        uint32 index = uint32(c.timestamp) / interval - t0;\n        _incrementNonce(index);\n        _cleanupNonces();\n        c.completed = true;\n    }\n\n    /// This function removes all tracked nonce values correspond to interval blocks that are older than block.timestamp - REVEAL_MAX_DELAY. In doing so, extraneous data in the blockchain is removed, and both nonces and nonceTracker are bounded in size.\n    function _cleanupNonces() internal {\n        uint32 tMin = uint32(block.timestamp) - REVEAL_MAX_DELAY;\n        uint32 indexMinUnadjusted = tMin / interval;\n        uint32 indexMin = 0;\n        if (indexMinUnadjusted > t0) {\n            indexMin = indexMinUnadjusted - t0;\n        }\n        uint32[] memory nonZeroNonces = new uint32[](nonceTracker.length);\n        uint32 numValidIndices = 0;\n        for (uint8 i = 0; i < nonceTracker.length; i++) {\n            uint32 index = nonceTracker[i];\n            if (index < indexMin) {\n                delete nonces[index];\n            } else {\n                nonZeroNonces[numValidIndices] = index;\n            unchecked {\n                numValidIndices++;\n            }\n            }\n        }\n        // TODO (@polymorpher): This can be later made more efficient by inline assembly. https://ethereum.stackexchange.com/questions/51891/how-to-pop-from-decrease-the-length-of-a-memory-array-in-solidity\n        uint32[] memory reducedArray = new uint32[](numValidIndices);\n        for (uint8 i = 0; i < numValidIndices; i++) {\n            reducedArray[i] = nonZeroNonces[i];\n        }\n        nonceTracker = reducedArray;\n    }\n\n    function _incrementNonce(uint32 index) internal {\n        uint8 v = nonces[index];\n        if (v == 0) {\n            nonceTracker.push(index);\n        }\n    unchecked{\n        nonces[index] = v + 1;\n    }\n    }\n}\n",
   "sourcePath": "/Users/polymorpher/git/one-wallet/code/contracts/ONEWallet.sol",
   "ast": {
-    "absolutePath": "/Users/polymorpher/git/one-wallet/code/contracts/ONEWallet.sol",
+    "absolutePath": "project:/contracts/ONEWallet.sol",
     "exportedSymbols": {
       "IERC1155": [
-        3551
+        121
       ],
       "IERC1155Receiver": [
-        3592
+        162
       ],
       "IERC165": [
-        3816
+        386
       ],
       "IERC20": [
-        3670
+        240
       ],
       "IERC721": [
-        3786
+        356
       ],
       "IERC721Receiver": [
-        3804
+        374
       ],
       "ONEWallet": [
-        2161
+        2592
       ],
       "TokenTracker": [
-        3429
+        3860
       ]
     },
-    "id": 2162,
+    "id": 2593,
     "license": "Apache-2.0",
     "nodeType": "SourceUnit",
     "nodes": [
       {
-        "id": 1,
+        "id": 388,
         "literals": [
           "solidity",
           "^",
@@ -26324,29 +28008,29 @@
           ".4"
         ],
         "nodeType": "PragmaDirective",
-        "src": "39:23:0"
+        "src": "39:23:6"
       },
       {
-        "absolutePath": "/Users/polymorpher/git/one-wallet/code/contracts/TokenTracker.sol",
+        "absolutePath": "project:/contracts/TokenTracker.sol",
         "file": "./TokenTracker.sol",
-        "id": 2,
+        "id": 389,
         "nameLocation": "-1:-1:-1",
         "nodeType": "ImportDirective",
-        "scope": 2162,
-        "sourceUnit": 3430,
-        "src": "64:28:0",
+        "scope": 2593,
+        "sourceUnit": 3861,
+        "src": "64:28:6",
         "symbolAliases": [],
         "unitAlias": ""
       },
       {
         "absolutePath": "@openzeppelin/contracts/token/ERC20/IERC20.sol",
         "file": "@openzeppelin/contracts/token/ERC20/IERC20.sol",
-        "id": 3,
+        "id": 390,
         "nameLocation": "-1:-1:-1",
         "nodeType": "ImportDirective",
-        "scope": 2162,
-        "sourceUnit": 3671,
-        "src": "93:56:0",
+        "scope": 2593,
+        "sourceUnit": 241,
+        "src": "93:56:6",
         "symbolAliases": [],
         "unitAlias": ""
       },
@@ -26355,52 +28039,52 @@
         "baseContracts": [
           {
             "baseName": {
-              "id": 4,
+              "id": 391,
               "name": "TokenTracker",
               "nodeType": "IdentifierPath",
-              "referencedDeclaration": 3429,
-              "src": "173:12:0"
+              "referencedDeclaration": 3860,
+              "src": "173:12:6"
             },
-            "id": 5,
+            "id": 392,
             "nodeType": "InheritanceSpecifier",
-            "src": "173:12:0"
+            "src": "173:12:6"
           }
         ],
         "contractDependencies": [],
         "contractKind": "contract",
         "fullyImplemented": true,
-        "id": 2161,
+        "id": 2592,
         "linearizedBaseContracts": [
-          2161,
-          3429,
-          3592,
-          3816,
-          3804
+          2592,
+          3860,
+          162,
+          386,
+          374
         ],
         "name": "ONEWallet",
-        "nameLocation": "160:9:0",
+        "nameLocation": "160:9:6",
         "nodeType": "ContractDefinition",
         "nodes": [
           {
             "anonymous": false,
-            "id": 13,
+            "id": 400,
             "name": "InsufficientFund",
-            "nameLocation": "198:16:0",
+            "nameLocation": "198:16:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 12,
+              "id": 399,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 7,
+                  "id": 394,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "223:6:0",
+                  "nameLocation": "223:6:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 13,
-                  "src": "215:14:0",
+                  "scope": 400,
+                  "src": "215:14:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26408,10 +28092,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 6,
+                    "id": 393,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "215:7:0",
+                    "src": "215:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -26421,14 +28105,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 9,
+                  "id": 396,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "balance",
-                  "nameLocation": "239:7:0",
+                  "nameLocation": "239:7:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 13,
-                  "src": "231:15:0",
+                  "scope": 400,
+                  "src": "231:15:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26436,10 +28120,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 8,
+                    "id": 395,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "231:7:0",
+                    "src": "231:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -26449,14 +28133,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 11,
+                  "id": 398,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "256:4:0",
+                  "nameLocation": "256:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 13,
-                  "src": "248:12:0",
+                  "scope": 400,
+                  "src": "248:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26464,10 +28148,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 10,
+                    "id": 397,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "248:7:0",
+                    "src": "248:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -26477,30 +28161,30 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "214:47:0"
+              "src": "214:47:6"
             },
-            "src": "192:70:0"
+            "src": "192:70:6"
           },
           {
             "anonymous": false,
-            "id": 23,
+            "id": 410,
             "name": "ExceedDailyLimit",
-            "nameLocation": "273:16:0",
+            "nameLocation": "273:16:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 22,
+              "id": 409,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 15,
+                  "id": 402,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "298:6:0",
+                  "nameLocation": "298:6:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 23,
-                  "src": "290:14:0",
+                  "scope": 410,
+                  "src": "290:14:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26508,10 +28192,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 14,
+                    "id": 401,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "290:7:0",
+                    "src": "290:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -26521,14 +28205,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 17,
+                  "id": 404,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "limit",
-                  "nameLocation": "314:5:0",
+                  "nameLocation": "314:5:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 23,
-                  "src": "306:13:0",
+                  "scope": 410,
+                  "src": "306:13:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26536,10 +28220,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 16,
+                    "id": 403,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "306:7:0",
+                    "src": "306:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -26549,14 +28233,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 19,
+                  "id": 406,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "current",
-                  "nameLocation": "329:7:0",
+                  "nameLocation": "329:7:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 23,
-                  "src": "321:15:0",
+                  "scope": 410,
+                  "src": "321:15:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26564,10 +28248,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 18,
+                    "id": 405,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "321:7:0",
+                    "src": "321:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -26577,14 +28261,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 21,
+                  "id": 408,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "346:4:0",
+                  "nameLocation": "346:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 23,
-                  "src": "338:12:0",
+                  "scope": 410,
+                  "src": "338:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26592,10 +28276,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 20,
+                    "id": 407,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "338:7:0",
+                    "src": "338:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -26605,30 +28289,30 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "289:62:0"
+              "src": "289:62:6"
             },
-            "src": "267:85:0"
+            "src": "267:85:6"
           },
           {
             "anonymous": false,
-            "id": 27,
+            "id": 414,
             "name": "UnknownTransferError",
-            "nameLocation": "363:20:0",
+            "nameLocation": "363:20:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 26,
+              "id": 413,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 25,
+                  "id": 412,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "392:4:0",
+                  "nameLocation": "392:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 27,
-                  "src": "384:12:0",
+                  "scope": 414,
+                  "src": "384:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26636,10 +28320,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 24,
+                    "id": 411,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "384:7:0",
+                    "src": "384:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -26649,44 +28333,44 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "383:14:0"
+              "src": "383:14:6"
             },
-            "src": "357:41:0"
+            "src": "357:41:6"
           },
           {
             "anonymous": false,
-            "id": 29,
+            "id": 416,
             "name": "LastResortAddressNotSet",
-            "nameLocation": "409:23:0",
+            "nameLocation": "409:23:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 28,
+              "id": 415,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "432:2:0"
+              "src": "432:2:6"
             },
-            "src": "403:32:0"
+            "src": "403:32:6"
           },
           {
             "anonymous": false,
-            "id": 35,
+            "id": 422,
             "name": "PaymentReceived",
-            "nameLocation": "446:15:0",
+            "nameLocation": "446:15:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 34,
+              "id": 421,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 31,
+                  "id": 418,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "470:6:0",
+                  "nameLocation": "470:6:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 35,
-                  "src": "462:14:0",
+                  "scope": 422,
+                  "src": "462:14:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26694,10 +28378,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 30,
+                    "id": 417,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "462:7:0",
+                    "src": "462:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -26707,14 +28391,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 33,
+                  "id": 420,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "from",
-                  "nameLocation": "486:4:0",
+                  "nameLocation": "486:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 35,
-                  "src": "478:12:0",
+                  "scope": 422,
+                  "src": "478:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26722,10 +28406,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 32,
+                    "id": 419,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "478:7:0",
+                    "src": "478:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -26735,30 +28419,30 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "461:30:0"
+              "src": "461:30:6"
             },
-            "src": "440:52:0"
+            "src": "440:52:6"
           },
           {
             "anonymous": false,
-            "id": 41,
+            "id": 428,
             "name": "PaymentSent",
-            "nameLocation": "503:11:0",
+            "nameLocation": "503:11:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 40,
+              "id": 427,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 37,
+                  "id": 424,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "523:6:0",
+                  "nameLocation": "523:6:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 41,
-                  "src": "515:14:0",
+                  "scope": 428,
+                  "src": "515:14:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26766,10 +28450,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 36,
+                    "id": 423,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "515:7:0",
+                    "src": "515:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -26779,14 +28463,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 39,
+                  "id": 426,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "539:4:0",
+                  "nameLocation": "539:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 41,
-                  "src": "531:12:0",
+                  "scope": 428,
+                  "src": "531:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26794,10 +28478,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 38,
+                    "id": 425,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "531:7:0",
+                    "src": "531:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -26807,30 +28491,30 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "514:30:0"
+              "src": "514:30:6"
             },
-            "src": "497:48:0"
+            "src": "497:48:6"
           },
           {
             "anonymous": false,
-            "id": 45,
+            "id": 432,
             "name": "AutoRecoveryTriggered",
-            "nameLocation": "556:21:0",
+            "nameLocation": "556:21:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 44,
+              "id": 431,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 43,
+                  "id": 430,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "from",
-                  "nameLocation": "586:4:0",
+                  "nameLocation": "586:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 45,
-                  "src": "578:12:0",
+                  "scope": 432,
+                  "src": "578:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26838,10 +28522,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 42,
+                    "id": 429,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "578:7:0",
+                    "src": "578:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -26851,39 +28535,39 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "577:14:0"
+              "src": "577:14:6"
             },
-            "src": "550:42:0"
+            "src": "550:42:6"
           },
           {
             "anonymous": false,
-            "id": 47,
+            "id": 434,
             "name": "RecoveryFailure",
-            "nameLocation": "603:15:0",
+            "nameLocation": "603:15:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 46,
+              "id": 433,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "618:2:0"
+              "src": "618:2:6"
             },
-            "src": "597:24:0"
+            "src": "597:24:6"
           },
           {
             "constant": false,
             "documentation": {
-              "id": 48,
+              "id": 435,
               "nodeType": "StructuredDocumentation",
-              "src": "627:271:0",
+              "src": "627:271:6",
               "text": "In future versions, it is planned that we may allow the user to extend the wallet's life through a function call. When that is implemented, the following variables may no longer be immutable, with the exception of root which shall serve as an identifier of the wallet"
             },
-            "id": 50,
+            "id": 437,
             "mutability": "immutable",
             "name": "root",
-            "nameLocation": "921:4:0",
+            "nameLocation": "921:4:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "903:22:0",
+            "scope": 2592,
+            "src": "903:22:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -26891,10 +28575,10 @@
               "typeString": "bytes32"
             },
             "typeName": {
-              "id": 49,
+              "id": 436,
               "name": "bytes32",
               "nodeType": "ElementaryTypeName",
-              "src": "903:7:0",
+              "src": "903:7:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_bytes32",
                 "typeString": "bytes32"
@@ -26904,13 +28588,13 @@
           },
           {
             "constant": false,
-            "id": 52,
+            "id": 439,
             "mutability": "immutable",
             "name": "height",
-            "nameLocation": "1185:6:0",
+            "nameLocation": "1185:6:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1169:22:0",
+            "scope": 2592,
+            "src": "1169:22:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -26918,10 +28602,10 @@
               "typeString": "uint8"
             },
             "typeName": {
-              "id": 51,
+              "id": 438,
               "name": "uint8",
               "nodeType": "ElementaryTypeName",
-              "src": "1169:5:0",
+              "src": "1169:5:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_uint8",
                 "typeString": "uint8"
@@ -26931,13 +28615,13 @@
           },
           {
             "constant": false,
-            "id": 54,
+            "id": 441,
             "mutability": "immutable",
             "name": "interval",
-            "nameLocation": "1284:8:0",
+            "nameLocation": "1284:8:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1268:24:0",
+            "scope": 2592,
+            "src": "1268:24:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -26945,10 +28629,10 @@
               "typeString": "uint8"
             },
             "typeName": {
-              "id": 53,
+              "id": 440,
               "name": "uint8",
               "nodeType": "ElementaryTypeName",
-              "src": "1268:5:0",
+              "src": "1268:5:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_uint8",
                 "typeString": "uint8"
@@ -26958,13 +28642,13 @@
           },
           {
             "constant": false,
-            "id": 56,
+            "id": 443,
             "mutability": "immutable",
             "name": "t0",
-            "nameLocation": "1357:2:0",
+            "nameLocation": "1357:2:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1340:19:0",
+            "scope": 2592,
+            "src": "1340:19:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -26972,10 +28656,10 @@
               "typeString": "uint32"
             },
             "typeName": {
-              "id": 55,
+              "id": 442,
               "name": "uint32",
               "nodeType": "ElementaryTypeName",
-              "src": "1340:6:0",
+              "src": "1340:6:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_uint32",
                 "typeString": "uint32"
@@ -26985,13 +28669,13 @@
           },
           {
             "constant": false,
-            "id": 58,
+            "id": 445,
             "mutability": "immutable",
             "name": "lifespan",
-            "nameLocation": "1440:8:0",
+            "nameLocation": "1440:8:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1423:25:0",
+            "scope": 2592,
+            "src": "1423:25:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -26999,10 +28683,10 @@
               "typeString": "uint32"
             },
             "typeName": {
-              "id": 57,
+              "id": 444,
               "name": "uint32",
               "nodeType": "ElementaryTypeName",
-              "src": "1423:6:0",
+              "src": "1423:6:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_uint32",
                 "typeString": "uint32"
@@ -27012,13 +28696,13 @@
           },
           {
             "constant": false,
-            "id": 60,
+            "id": 447,
             "mutability": "immutable",
             "name": "maxOperationsPerInterval",
-            "nameLocation": "1531:24:0",
+            "nameLocation": "1531:24:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1515:40:0",
+            "scope": 2592,
+            "src": "1515:40:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -27026,10 +28710,10 @@
               "typeString": "uint8"
             },
             "typeName": {
-              "id": 59,
+              "id": 446,
               "name": "uint8",
               "nodeType": "ElementaryTypeName",
-              "src": "1515:5:0",
+              "src": "1515:5:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_uint8",
                 "typeString": "uint8"
@@ -27037,21 +28721,48 @@
             },
             "visibility": "internal"
           },
+          {
+            "constant": false,
+            "id": 449,
+            "mutability": "immutable",
+            "name": "_numLeaves",
+            "nameLocation": "1727:10:6",
+            "nodeType": "VariableDeclaration",
+            "scope": 2592,
+            "src": "1710:27:6",
+            "stateVariable": true,
+            "storageLocation": "default",
+            "typeDescriptions": {
+              "typeIdentifier": "t_uint32",
+              "typeString": "uint32"
+            },
+            "typeName": {
+              "id": 448,
+              "name": "uint32",
+              "nodeType": "ElementaryTypeName",
+              "src": "1710:6:6",
+              "typeDescriptions": {
+                "typeIdentifier": "t_uint32",
+                "typeString": "uint32"
+              }
+            },
+            "visibility": "internal"
+          },
           {
             "constant": false,
             "documentation": {
-              "id": 61,
+              "id": 450,
               "nodeType": "StructuredDocumentation",
-              "src": "1711:28:0",
+              "src": "1765:28:6",
               "text": "global mutable variables"
             },
-            "id": 63,
+            "id": 452,
             "mutability": "mutable",
             "name": "lastResortAddress",
-            "nameLocation": "1760:17:0",
+            "nameLocation": "1814:17:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1744:33:0",
+            "scope": 2592,
+            "src": "1798:33:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -27059,10 +28770,10 @@
               "typeString": "address payable"
             },
             "typeName": {
-              "id": 62,
+              "id": 451,
               "name": "address",
               "nodeType": "ElementaryTypeName",
-              "src": "1744:15:0",
+              "src": "1798:15:6",
               "stateMutability": "payable",
               "typeDescriptions": {
                 "typeIdentifier": "t_address_payable",
@@ -27073,13 +28784,13 @@
           },
           {
             "constant": false,
-            "id": 65,
+            "id": 454,
             "mutability": "mutable",
             "name": "dailyLimit",
-            "nameLocation": "1889:10:0",
+            "nameLocation": "1943:10:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1881:18:0",
+            "scope": 2592,
+            "src": "1935:18:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -27087,10 +28798,10 @@
               "typeString": "uint256"
             },
             "typeName": {
-              "id": 64,
+              "id": 453,
               "name": "uint256",
               "nodeType": "ElementaryTypeName",
-              "src": "1881:7:0",
+              "src": "1935:7:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_uint256",
                 "typeString": "uint256"
@@ -27100,13 +28811,13 @@
           },
           {
             "constant": false,
-            "id": 67,
+            "id": 456,
             "mutability": "mutable",
             "name": "spentToday",
-            "nameLocation": "2005:10:0",
+            "nameLocation": "2059:10:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1997:18:0",
+            "scope": 2592,
+            "src": "2051:18:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -27114,10 +28825,10 @@
               "typeString": "uint256"
             },
             "typeName": {
-              "id": 66,
+              "id": 455,
               "name": "uint256",
               "nodeType": "ElementaryTypeName",
-              "src": "1997:7:0",
+              "src": "2051:7:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_uint256",
                 "typeString": "uint256"
@@ -27127,13 +28838,13 @@
           },
           {
             "constant": false,
-            "id": 69,
+            "id": 458,
             "mutability": "mutable",
             "name": "lastTransferDay",
-            "nameLocation": "2224:15:0",
+            "nameLocation": "2278:15:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "2217:22:0",
+            "scope": 2592,
+            "src": "2271:22:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -27141,10 +28852,10 @@
               "typeString": "uint32"
             },
             "typeName": {
-              "id": 68,
+              "id": 457,
               "name": "uint32",
               "nodeType": "ElementaryTypeName",
-              "src": "2217:6:0",
+              "src": "2271:6:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_uint32",
                 "typeString": "uint32"
@@ -27155,18 +28866,18 @@
           {
             "constant": false,
             "documentation": {
-              "id": 70,
+              "id": 459,
               "nodeType": "StructuredDocumentation",
-              "src": "2246:18:0",
+              "src": "2300:18:6",
               "text": "nonce tracking"
             },
-            "id": 74,
+            "id": 463,
             "mutability": "mutable",
             "name": "nonces",
-            "nameLocation": "2294:6:0",
+            "nameLocation": "2348:6:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "2269:31:0",
+            "scope": 2592,
+            "src": "2323:31:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -27174,28 +28885,28 @@
               "typeString": "mapping(uint32 => uint8)"
             },
             "typeName": {
-              "id": 73,
+              "id": 462,
               "keyType": {
-                "id": 71,
+                "id": 460,
                 "name": "uint32",
                 "nodeType": "ElementaryTypeName",
-                "src": "2277:6:0",
+                "src": "2331:6:6",
                 "typeDescriptions": {
                   "typeIdentifier": "t_uint32",
                   "typeString": "uint32"
                 }
               },
               "nodeType": "Mapping",
-              "src": "2269:24:0",
+              "src": "2323:24:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_mapping$_t_uint32_$_t_uint8_$",
                 "typeString": "mapping(uint32 => uint8)"
               },
               "valueType": {
-                "id": 72,
+                "id": 461,
                 "name": "uint8",
                 "nodeType": "ElementaryTypeName",
-                "src": "2287:5:0",
+                "src": "2341:5:6",
                 "typeDescriptions": {
                   "typeIdentifier": "t_uint8",
                   "typeString": "uint8"
@@ -27206,13 +28917,13 @@
           },
           {
             "constant": false,
-            "id": 77,
+            "id": 466,
             "mutability": "mutable",
             "name": "nonceTracker",
-            "nameLocation": "2494:12:0",
+            "nameLocation": "2548:12:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "2485:21:0",
+            "scope": 2592,
+            "src": "2539:21:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -27221,18 +28932,18 @@
             },
             "typeName": {
               "baseType": {
-                "id": 75,
+                "id": 464,
                 "name": "uint32",
                 "nodeType": "ElementaryTypeName",
-                "src": "2485:6:0",
+                "src": "2539:6:6",
                 "typeDescriptions": {
                   "typeIdentifier": "t_uint32",
                   "typeString": "uint32"
                 }
               },
-              "id": 76,
+              "id": 465,
               "nodeType": "ArrayTypeName",
-              "src": "2485:8:0",
+              "src": "2539:8:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_array$_t_uint32_$dyn_storage_ptr",
                 "typeString": "uint32[]"
@@ -27242,13 +28953,13 @@
           },
           {
             "constant": true,
-            "id": 80,
+            "id": 469,
             "mutability": "constant",
             "name": "REVEAL_MAX_DELAY",
-            "nameLocation": "2928:16:0",
+            "nameLocation": "2982:16:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "2912:37:0",
+            "scope": 2592,
+            "src": "2966:37:6",
             "stateVariable": true,
             "storageLocation": "default",
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                         "typeString": "uint8"
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@@ -27917,41 +29635,41 @@
                     "nodeType": "Assignment",
                     "operator": "=",
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                         "typeString": "uint8"
                       }
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@@ -27960,41 +29678,41 @@
                     "nodeType": "Assignment",
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                         "typeString": "uint32"
                       }
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@@ -28003,41 +29721,41 @@
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                         "typeString": "uint32"
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                         "typeIdentifier": "t_address_payable",
                         "typeString": "address payable"
@@ -28046,41 +29764,41 @@
                     "nodeType": "Assignment",
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                       "name": "lastResortAddress_",
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-                      "src": "4227:18:0",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_address_payable",
                         "typeString": "address payable"
                       }
                     },
-                    "src": "4207:38:0",
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                     "typeDescriptions": {
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                       "typeString": "address payable"
                     }
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                         "typeString": "uint256"
@@ -28089,41 +29807,41 @@
                     "nodeType": "Assignment",
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                       "name": "dailyLimit_",
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-                      "src": "4268:11:0",
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                         "typeString": "uint256"
                       }
                     },
-                    "src": "4255:24:0",
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                       "typeString": "uint256"
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@@ -28132,30 +29850,201 @@
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                         "typeString": "uint8"
                       }
                     },
-                    "src": "4289:52:0",
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                       "typeString": "uint8"
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+                },
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+                      "name": "_numLeaves",
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+                      "src": "4528:10:6",
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+                        "typeString": "uint32"
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+                        {
+                          "commonType": {
+                            "typeIdentifier": "t_uint256",
+                            "typeString": "uint256"
+                          },
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+                          "leftExpression": {
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+                            "isPure": true,
+                            "kind": "number",
+                            "lValueRequested": false,
+                            "nodeType": "Literal",
+                            "src": "4548:1:6",
+                            "typeDescriptions": {
+                              "typeIdentifier": "t_rational_2_by_1",
+                              "typeString": "int_const 2"
+                            },
+                            "value": "2"
+                          },
+                          "nodeType": "BinaryOperation",
+                          "operator": "**",
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+                                  "nodeType": "Literal",
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+                                  "typeDescriptions": {
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+                                    "typeString": "int_const 1"
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+                                  "value": "1"
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+                            "typeString": "uint256"
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+                            "typeString": "uint256"
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+                        "nodeType": "ElementaryTypeNameExpression",
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+                        "typeDescriptions": {
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+                          "typeString": "type(uint32)"
+                        },
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+                          "name": "uint32",
+                          "nodeType": "ElementaryTypeName",
+                          "src": "4541:6:6",
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+                      "kind": "typeConversion",
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+                      "typeDescriptions": {
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+                        "typeString": "uint32"
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@@ -28163,18 +30052,18 @@
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                   "mutability": "mutable",
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@@ -28182,10 +30071,10 @@
                     "typeString": "bytes32"
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                       "typeString": "bytes32"
@@ -28195,13 +30084,13 @@
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                   "mutability": "mutable",
                   "name": "height_",
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@@ -28209,10 +30098,10 @@
                     "typeString": "uint8"
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                       "typeString": "uint8"
@@ -28222,13 +30111,13 @@
                 },
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@@ -28236,10 +30125,10 @@
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@@ -28249,13 +30138,13 @@
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                   "mutability": "mutable",
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@@ -28263,10 +30152,10 @@
                     "typeString": "uint32"
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@@ -28276,13 +30165,13 @@
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@@ -28290,10 +30179,10 @@
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@@ -28303,13 +30192,13 @@
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@@ -28317,10 +30206,10 @@
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@@ -28330,13 +30219,13 @@
                 },
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@@ -28344,10 +30233,10 @@
                     "typeString": "address payable"
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@@ -28358,13 +30247,13 @@
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@@ -28372,10 +30261,10 @@
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@@ -28384,50 +30273,50 @@
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               "nodeType": "ParameterList",
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-              "src": "4071:0:0"
+              "src": "4248:0:6"
             },
-            "scope": 2161,
-            "src": "3880:468:0",
+            "scope": 2592,
+            "src": "4057:517:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "public"
           },
           {
             "body": {
-              "id": 228,
+              "id": 630,
               "nodeType": "Block",
-              "src": "4381:449:0",
+              "src": "4607:449:6",
               "statements": [
                 {
                   "eventCall": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 179,
+                          "id": 581,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "4412:3:0",
+                          "src": "4638:3:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_magic_message",
                             "typeString": "msg"
                           }
                         },
-                        "id": 180,
+                        "id": 582,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "value",
                         "nodeType": "MemberAccess",
-                        "src": "4412:9:0",
+                        "src": "4638:9:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -28435,25 +30324,25 @@
                       },
                       {
                         "expression": {
-                          "id": 181,
+                          "id": 583,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "4423:3:0",
+                          "src": "4649:3:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_magic_message",
                             "typeString": "msg"
                           }
                         },
-                        "id": 182,
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                         "isConstant": false,
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                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "sender",
                         "nodeType": "MemberAccess",
-                        "src": "4423:10:0",
+                        "src": "4649:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
@@ -28471,18 +30360,18 @@
                           "typeString": "address"
                         }
                       ],
-                      "id": 178,
+                      "id": 580,
                       "name": "PaymentReceived",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 35,
-                      "src": "4396:15:0",
+                      "referencedDeclaration": 422,
+                      "src": "4622:15:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_event_nonpayable$_t_uint256_$_t_address_$returns$__$",
                         "typeString": "function (uint256,address)"
                       }
                     },
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+                    "id": 585,
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@@ -28490,16 +30379,16 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "4396:38:0",
+                    "src": "4622:38:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 184,
+                  "id": 586,
                   "nodeType": "EmitStatement",
-                  "src": "4391:43:0"
+                  "src": "4617:43:6"
                 },
                 {
                   "condition": {
@@ -28507,32 +30396,32 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 188,
+                    "id": 590,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
                       "expression": {
-                        "id": 185,
+                        "id": 587,
                         "name": "msg",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 4294967281,
-                        "src": "4448:3:0",
+                        "src": "4674:3:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_magic_message",
                           "typeString": "msg"
                         }
                       },
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                       "isLValue": false,
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                       "lValueRequested": false,
                       "memberName": "value",
                       "nodeType": "MemberAccess",
-                      "src": "4448:9:0",
+                      "src": "4674:9:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
@@ -28541,36 +30430,36 @@
                     "nodeType": "BinaryOperation",
                     "operator": "!=",
                     "rightExpression": {
-                      "id": 187,
+                      "id": 589,
                       "name": "AUTO_RECOVERY_TRIGGER_AMOUNT",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 86,
-                      "src": "4461:28:0",
+                      "referencedDeclaration": 475,
+                      "src": "4687:28:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "4448:41:0",
+                    "src": "4674:41:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
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+                  "id": 593,
                   "nodeType": "IfStatement",
-                  "src": "4444:78:0",
+                  "src": "4670:78:6",
                   "trueBody": {
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                     "nodeType": "Block",
-                    "src": "4491:31:0",
+                    "src": "4717:31:6",
                     "statements": [
                       {
-                        "functionReturnParameters": 177,
-                        "id": 189,
+                        "functionReturnParameters": 579,
+                        "id": 591,
                         "nodeType": "Return",
-                        "src": "4505:7:0"
+                        "src": "4731:7:6"
                       }
                     ]
                   }
@@ -28581,32 +30470,32 @@
                       "typeIdentifier": "t_address",
                       "typeString": "address"
                     },
-                    "id": 195,
+                    "id": 597,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
                       "expression": {
-                        "id": 192,
+                        "id": 594,
                         "name": "msg",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 4294967281,
-                        "src": "4535:3:0",
+                        "src": "4761:3:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_magic_message",
                           "typeString": "msg"
                         }
                       },
-                      "id": 193,
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                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "sender",
                       "nodeType": "MemberAccess",
-                      "src": "4535:10:0",
+                      "src": "4761:10:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address",
                         "typeString": "address"
@@ -28615,36 +30504,36 @@
                     "nodeType": "BinaryOperation",
                     "operator": "!=",
                     "rightExpression": {
-                      "id": 194,
+                      "id": 596,
                       "name": "lastResortAddress",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 63,
-                      "src": "4549:17:0",
+                      "referencedDeclaration": 452,
+                      "src": "4775:17:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address_payable",
                         "typeString": "address payable"
                       }
                     },
-                    "src": "4535:31:0",
+                    "src": "4761:31:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
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                   "trueBody": {
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                     "statements": [
                       {
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-                        "id": 196,
+                        "functionReturnParameters": 579,
+                        "id": 598,
                         "nodeType": "Return",
-                        "src": "4582:7:0"
+                        "src": "4808:7:6"
                       }
                     ]
                   }
@@ -28655,18 +30544,18 @@
                       "typeIdentifier": "t_address",
                       "typeString": "address"
                     },
-                    "id": 204,
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                     "leftExpression": {
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                       "name": "lastResortAddress",
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-                      "referencedDeclaration": 63,
-                      "src": "4612:17:0",
+                      "referencedDeclaration": 452,
+                      "src": "4838:17:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address_payable",
                         "typeString": "address payable"
@@ -28678,14 +30567,14 @@
                       "arguments": [
                         {
                           "hexValue": "30",
-                          "id": 202,
+                          "id": 604,
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                           "isPure": true,
                           "kind": "number",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "4641:1:0",
+                          "src": "4867:1:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_rational_0_by_1",
                             "typeString": "int_const 0"
@@ -28700,26 +30589,26 @@
                             "typeString": "int_const 0"
                           }
                         ],
-                        "id": 201,
+                        "id": 603,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "nodeType": "ElementaryTypeNameExpression",
-                        "src": "4633:7:0",
+                        "src": "4859:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_type$_t_address_$",
                           "typeString": "type(address)"
                         },
                         "typeName": {
-                          "id": 200,
+                          "id": 602,
                           "name": "address",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4633:7:0",
+                          "src": "4859:7:6",
                           "typeDescriptions": {}
                         }
                       },
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@@ -28727,32 +30616,32 @@
                       "lValueRequested": false,
                       "names": [],
                       "nodeType": "FunctionCall",
-                      "src": "4633:10:0",
+                      "src": "4859:10:6",
                       "tryCall": false,
                       "typeDescriptions": {
                         "typeIdentifier": "t_address",
                         "typeString": "address"
                       }
                     },
-                    "src": "4612:31:0",
+                    "src": "4838:31:6",
                     "typeDescriptions": {
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                       {
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+                        "functionReturnParameters": 579,
+                        "id": 607,
                         "nodeType": "Return",
-                        "src": "4659:7:0"
+                        "src": "4885:7:6"
                       }
                     ]
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@@ -28763,32 +30652,32 @@
                       "typeIdentifier": "t_address",
                       "typeString": "address"
                     },
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                     "leftExpression": {
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-                        "id": 208,
+                        "id": 610,
                         "name": "msg",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 4294967281,
-                        "src": "4689:3:0",
+                        "src": "4915:3:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_magic_message",
                           "typeString": "msg"
                         }
                       },
-                      "id": 209,
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                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "sender",
                       "nodeType": "MemberAccess",
-                      "src": "4689:10:0",
+                      "src": "4915:10:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address",
                         "typeString": "address"
@@ -28799,14 +30688,14 @@
                     "rightExpression": {
                       "arguments": [
                         {
-                          "id": 212,
+                          "id": 614,
                           "name": "this",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967268,
-                          "src": "4711:4:0",
+                          "src": "4937:4:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                            "typeIdentifier": "t_contract$_ONEWallet_$2592",
                             "typeString": "contract ONEWallet"
                           }
                         }
@@ -28814,30 +30703,30 @@
                       "expression": {
                         "argumentTypes": [
                           {
-                            "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                            "typeIdentifier": "t_contract$_ONEWallet_$2592",
                             "typeString": "contract ONEWallet"
                           }
                         ],
-                        "id": 211,
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                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "nodeType": "ElementaryTypeNameExpression",
-                        "src": "4703:7:0",
+                        "src": "4929:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_type$_t_address_$",
                           "typeString": "type(address)"
                         },
                         "typeName": {
-                          "id": 210,
+                          "id": 612,
                           "name": "address",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4703:7:0",
+                          "src": "4929:7:6",
                           "typeDescriptions": {}
                         }
                       },
-                      "id": 213,
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@@ -28845,32 +30734,32 @@
                       "lValueRequested": false,
                       "names": [],
                       "nodeType": "FunctionCall",
-                      "src": "4703:13:0",
+                      "src": "4929:13:6",
                       "tryCall": false,
                       "typeDescriptions": {
                         "typeIdentifier": "t_address",
                         "typeString": "address"
                       }
                     },
-                    "src": "4689:27:0",
+                    "src": "4915:27:6",
                     "typeDescriptions": {
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                       "typeString": "bool"
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                     "nodeType": "Block",
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                     "statements": [
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-                        "functionReturnParameters": 177,
-                        "id": 215,
+                        "functionReturnParameters": 579,
+                        "id": 617,
                         "nodeType": "Return",
-                        "src": "4732:7:0"
+                        "src": "4958:7:6"
                       }
                     ]
                   }
@@ -28880,25 +30769,25 @@
                     "arguments": [
                       {
                         "expression": {
-                          "id": 219,
+                          "id": 621,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "4785:3:0",
+                          "src": "5011:3:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_magic_message",
                             "typeString": "msg"
                           }
                         },
-                        "id": 220,
+                        "id": 622,
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                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "sender",
                         "nodeType": "MemberAccess",
-                        "src": "4785:10:0",
+                        "src": "5011:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
@@ -28912,18 +30801,18 @@
                           "typeString": "address"
                         }
                       ],
-                      "id": 218,
+                      "id": 620,
                       "name": "AutoRecoveryTriggered",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 45,
-                      "src": "4763:21:0",
+                      "referencedDeclaration": 432,
+                      "src": "4989:21:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_event_nonpayable$_t_address_$returns$__$",
                         "typeString": "function (address)"
                       }
                     },
-                    "id": 221,
+                    "id": 623,
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@@ -28931,16 +30820,16 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "4763:33:0",
+                    "src": "4989:33:6",
                     "tryCall": false,
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                       "typeString": "tuple()"
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                 },
                 {
                   "expression": {
@@ -28949,18 +30838,18 @@
                         "arguments": [],
                         "expression": {
                           "argumentTypes": [],
-                          "id": 224,
+                          "id": 626,
                           "name": "_drain",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 808,
-                          "src": "4814:6:0",
+                          "referencedDeclaration": 1210,
+                          "src": "5040:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_internal_nonpayable$__$returns$_t_bool_$",
                             "typeString": "function () returns (bool)"
                           }
                         },
-                        "id": 225,
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@@ -28968,7 +30857,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "4814:8:0",
+                        "src": "5040:8:6",
                         "tryCall": false,
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
@@ -28983,7 +30872,7 @@
                           "typeString": "bool"
                         }
                       ],
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@@ -28991,13 +30880,13 @@
                         4294967278
                       ],
                       "referencedDeclaration": 4294967278,
-                      "src": "4806:7:0",
+                      "src": "5032:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$",
                         "typeString": "function (bool) pure"
                       }
                     },
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+                    "id": 628,
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@@ -29005,20 +30894,20 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "4806:17:0",
+                    "src": "5032:17:6",
                     "tryCall": false,
                     "typeDescriptions": {
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                       "typeString": "tuple()"
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                   },
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+                  "src": "5032:17:6"
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               ]
             },
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+            "id": 631,
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@@ -29026,28 +30915,28 @@
             "nameLocation": "-1:-1:-1",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 176,
+              "id": 578,
               "nodeType": "ParameterList",
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-              "src": "4361:2:0"
+              "src": "4587:2:6"
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-              "src": "4381:0:0"
+              "src": "4607:0:6"
             },
-            "scope": 2161,
-            "src": "4354:476:0",
+            "scope": 2592,
+            "src": "4580:476:6",
             "stateMutability": "payable",
             "virtual": false,
             "visibility": "external"
           },
           {
             "body": {
-              "id": 267,
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               "nodeType": "Block",
-              "src": "4883:250:0",
+              "src": "5109:250:6",
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                 {
                   "expression": {
@@ -29057,7 +30946,7 @@
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
                         },
-                        "id": 245,
+                        "id": 647,
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@@ -29067,7 +30956,7 @@
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           },
-                          "id": 243,
+                          "id": 645,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -29079,32 +30968,32 @@
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
                                 },
-                                "id": 240,
+                                "id": 642,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "leftExpression": {
                                   "expression": {
-                                    "id": 237,
+                                    "id": 639,
                                     "name": "block",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 4294967292,
-                                    "src": "4908:5:0",
+                                    "src": "5134:5:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_magic_block",
                                       "typeString": "block"
                                     }
                                   },
-                                  "id": 238,
+                                  "id": 640,
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@@ -30614,18 +32503,18 @@
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@@ -30742,34 +32631,34 @@
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@@ -30789,17 +32678,17 @@
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@@ -30910,7 +32799,7 @@
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@@ -30921,29 +32810,29 @@
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@@ -30955,25 +32844,25 @@
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@@ -30987,26 +32876,26 @@
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@@ -31111,10 +33000,10 @@
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@@ -31123,17 +33012,17 @@
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@@ -31141,11 +33030,11 @@
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@@ -31171,27 +33060,27 @@
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@@ -31200,18 +33089,18 @@
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@@ -31243,38 +33132,38 @@
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@@ -31290,22 +33179,22 @@
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@@ -31314,18 +33203,18 @@
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@@ -31334,16 +33223,16 @@
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@@ -31357,38 +33246,38 @@
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@@ -31428,18 +33317,18 @@
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@@ -31448,16 +33337,16 @@
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@@ -31471,38 +33360,38 @@
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@@ -31518,22 +33407,22 @@
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@@ -31542,18 +33431,18 @@
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@@ -31562,16 +33451,16 @@
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@@ -31585,38 +33474,38 @@
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@@ -31632,22 +33521,22 @@
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@@ -31656,18 +33545,18 @@
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@@ -31676,16 +33565,16 @@
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@@ -31699,38 +33588,38 @@
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@@ -31738,7 +33627,7 @@
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@@ -31746,22 +33635,22 @@
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@@ -31769,10 +33658,10 @@
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@@ -31781,17 +33670,17 @@
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@@ -31799,99 +33688,99 @@
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                             "storageLocation": "storage",
                             "typeDescriptions": {
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+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
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@@ -31902,7 +33791,7 @@
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@@ -31913,83 +33802,83 @@
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+                            "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
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+                                    "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                     "typeString": "struct ONEWallet.Commit"
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@@ -32000,43 +33889,43 @@
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@@ -32047,7 +33936,7 @@
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@@ -32057,69 +33946,69 @@
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+                                      "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
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@@ -32130,7 +34019,7 @@
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@@ -32140,69 +34029,69 @@
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+                                      "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                       "typeString": "struct ONEWallet.Commit storage pointer"
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@@ -32213,7 +34102,7 @@
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@@ -32223,69 +34112,69 @@
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+                                      "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                       "typeString": "struct ONEWallet.Commit storage pointer"
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                                     "typeString": "bytes32"
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@@ -32296,7 +34185,7 @@
                                   "isPure": false,
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@@ -32306,69 +34195,69 @@
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+                                      "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                       "typeString": "struct ONEWallet.Commit storage pointer"
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                                       "typeString": "bool[] memory"
                                     }
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-                                    "src": "7073:5:0",
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+                                    "src": "7299:5:6",
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                                       "typeString": "uint32"
@@ -32379,7 +34268,7 @@
                                   "isPure": false,
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                                   "nodeType": "IndexAccess",
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+                                  "src": "7289:16:6",
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                                     "typeString": "bool"
@@ -32389,44 +34278,44 @@
                                 "operator": "=",
                                 "rightHandSide": {
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+                                    "id": 950,
                                     "name": "c",
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                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 512,
-                                    "src": "7082:1:0",
+                                    "referencedDeclaration": 914,
+                                    "src": "7308:1:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                                      "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                       "typeString": "struct ONEWallet.Commit storage pointer"
                                     }
                                   },
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-                                  "src": "7082:11:0",
+                                  "referencedDeclaration": 503,
+                                  "src": "7308:11:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bool",
                                     "typeString": "bool"
                                   }
                                 },
-                                "src": "7063:30:0",
+                                "src": "7289:30:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bool",
                                   "typeString": "bool"
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+                              "src": "7289:30:6"
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@@ -32434,14 +34323,14 @@
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                                 "operator": "++",
                                 "prefix": false,
-                                "src": "7111:7:0",
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+                                  "src": "7337:5:6",
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                                     "typeString": "uint32"
@@ -32452,9 +34341,9 @@
                                   "typeString": "uint32"
                                 }
                               },
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+                              "id": 956,
                               "nodeType": "ExpressionStatement",
-                              "src": "7111:7:0"
+                              "src": "7337:7:6"
                             }
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                         },
@@ -32463,18 +34352,18 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
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                           "lValueRequested": false,
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                             "name": "j",
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                             "overloadedDeclarations": [],
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                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -32484,51 +34373,51 @@
                           "operator": "<",
                           "rightExpression": {
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+                              "id": 906,
                               "name": "cc",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 492,
-                              "src": "6783:2:0",
+                              "referencedDeclaration": 894,
+                              "src": "7009:2:6",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                                "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                               }
                             },
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                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "6783:9:0",
+                            "src": "7009:9:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "6779:13:0",
+                          "src": "7005:13:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
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@@ -32536,10 +34425,10 @@
                                 "typeString": "uint32"
                               },
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+                                "id": 901,
                                 "name": "uint32",
                                 "nodeType": "ElementaryTypeName",
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+                                "src": "6991:6:6",
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                                   "typeString": "uint32"
@@ -32548,17 +34437,17 @@
                               "visibility": "internal"
                             }
                           ],
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                           "initialValue": {
                             "hexValue": "30",
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                             "nodeType": "Literal",
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                               "typeString": "int_const 0"
@@ -32566,11 +34455,11 @@
                             "value": "0"
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+                          "src": "6991:12:6"
                         },
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@@ -32578,14 +34467,14 @@
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                             "operator": "++",
                             "prefix": false,
-                            "src": "6794:3:0",
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@@ -32596,12 +34485,12 @@
                               "typeString": "uint32"
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@@ -32610,18 +34499,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
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@@ -32631,51 +34520,51 @@
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                     "rightExpression": {
                       "expression": {
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+                        "id": 884,
                         "name": "commits",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
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-                        "src": "6665:7:0",
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                           "typeString": "bytes32[] storage ref"
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                       },
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                       "memberName": "length",
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                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
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                         "mutability": "mutable",
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                         "nodeType": "VariableDeclaration",
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+                        "scope": 960,
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@@ -32683,10 +34572,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
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+                          "id": 879,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "6647:6:0",
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                             "typeString": "uint32"
@@ -32695,17 +34584,17 @@
                         "visibility": "internal"
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@@ -32713,11 +34602,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
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@@ -32725,14 +34614,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
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@@ -32743,124 +34632,124 @@
                         "typeString": "uint32"
                       }
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                           "typeString": "bytes32[] memory"
                         }
                       },
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                         "name": "paramHashes",
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                         "overloadedDeclarations": [],
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@@ -32869,18 +34758,18 @@
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@@ -32890,13 +34779,13 @@
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@@ -32905,18 +34794,18 @@
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@@ -32926,13 +34815,13 @@
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@@ -32941,18 +34830,18 @@
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                         "typeString": "bytes32"
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@@ -32962,13 +34851,13 @@
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@@ -32977,18 +34866,18 @@
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@@ -33390,18 +35279,18 @@
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@@ -33447,38 +35336,38 @@
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@@ -33494,22 +35383,22 @@
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@@ -33518,18 +35407,18 @@
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@@ -33538,30 +35427,30 @@
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@@ -33575,38 +35464,38 @@
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@@ -33614,7 +35503,7 @@
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@@ -33622,22 +35511,22 @@
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@@ -33646,18 +35535,18 @@
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                             "typeString": "bytes32"
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@@ -33666,30 +35555,30 @@
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+                            "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
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@@ -33703,38 +35592,38 @@
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@@ -33742,7 +35631,7 @@
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@@ -33750,22 +35639,22 @@
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@@ -33774,18 +35663,18 @@
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@@ -33794,30 +35683,30 @@
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+                            "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
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@@ -33831,38 +35720,38 @@
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@@ -33870,7 +35759,7 @@
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@@ -33902,18 +35791,18 @@
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@@ -33922,30 +35811,30 @@
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@@ -33959,38 +35848,38 @@
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@@ -33998,7 +35887,7 @@
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@@ -34006,76 +35895,76 @@
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@@ -34086,43 +35975,43 @@
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@@ -34133,7 +36022,7 @@
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@@ -34143,69 +36032,69 @@
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@@ -34216,7 +36105,7 @@
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@@ -34226,69 +36115,69 @@
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                               "typeString": "bytes32"
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                             "typeString": "bytes32"
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@@ -34299,7 +36188,7 @@
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                             "nodeType": "IndexAccess",
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                               "typeString": "bytes32"
@@ -34309,69 +36198,69 @@
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+                                "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage pointer"
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-                            "src": "8081:18:0",
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                               "typeString": "bytes32"
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                             "typeString": "bytes32"
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                                 "typeString": "uint32[] memory"
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@@ -34382,7 +36271,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
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+                            "src": "8339:13:6",
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                               "typeString": "uint32"
@@ -34392,69 +36281,69 @@
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                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                                "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage pointer"
                               }
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                             "memberName": "timestamp",
                             "nodeType": "MemberAccess",
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                               "typeString": "uint32"
                             }
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+                          "src": "8339:27:6",
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                             "typeString": "uint32"
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                                 "typeString": "bool[] memory"
                               }
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@@ -34465,7 +36354,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
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+                            "src": "8380:12:6",
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@@ -34475,40 +36364,40 @@
                           "operator": "=",
                           "rightHandSide": {
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+                              "src": "8395:1:6",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                                "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage pointer"
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                               "typeIdentifier": "t_bool",
                               "typeString": "bool"
                             }
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-                          "src": "8154:26:0",
+                          "src": "8380:26:6",
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                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
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@@ -34517,18 +36406,18 @@
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                       "typeString": "uint256"
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@@ -34538,51 +36427,51 @@
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+                        "id": 1081,
                         "name": "cc",
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                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 609,
-                        "src": "7914:2:0",
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+                        "src": "8140:2:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                          "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                           "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
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                       "nodeType": "MemberAccess",
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                         "typeString": "uint256"
                       }
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                         "mutability": "mutable",
                         "name": "i",
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+                        "nameLocation": "8129:1:6",
                         "nodeType": "VariableDeclaration",
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-                        "src": "7896:8:0",
+                        "scope": 1130,
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@@ -34590,10 +36479,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 674,
+                          "id": 1076,
                           "name": "uint32",
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@@ -34602,17 +36491,17 @@
                         "visibility": "internal"
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                       "nodeType": "Literal",
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@@ -34620,11 +36509,11 @@
                       "value": "0"
                     },
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@@ -34632,14 +36521,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
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@@ -34650,118 +36539,118 @@
                         "typeString": "uint32"
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                           "typeString": "bytes32[] memory"
                         }
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                         "name": "paramHashes",
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                         "overloadedDeclarations": [],
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-                        "src": "8216:11:0",
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@@ -34769,10 +36658,10 @@
                     "typeString": "bytes32"
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@@ -34781,21 +36670,21 @@
                   "visibility": "internal"
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@@ -34804,18 +36693,18 @@
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@@ -34825,13 +36714,13 @@
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@@ -34840,18 +36729,18 @@
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@@ -34861,13 +36750,13 @@
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@@ -34876,18 +36765,18 @@
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+                      "id": 997,
                       "name": "bytes32",
                       "nodeType": "ElementaryTypeName",
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                         "typeIdentifier": "t_bytes32",
                         "typeString": "bytes32"
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+                    "id": 998,
                     "nodeType": "ArrayTypeName",
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                       "typeIdentifier": "t_array$_t_bytes32_$dyn_storage_ptr",
                       "typeString": "bytes32[]"
@@ -34897,13 +36786,13 @@
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                   "nameLocation": "-1:-1:-1",
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                   "storageLocation": "memory",
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@@ -34912,18 +36801,18 @@
                   },
                   "typeName": {
                     "baseType": {
-                      "id": 598,
+                      "id": 1000,
                       "name": "uint32",
                       "nodeType": "ElementaryTypeName",
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                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
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-                    "id": 599,
+                    "id": 1001,
                     "nodeType": "ArrayTypeName",
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+                    "src": "7710:8:6",
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                       "typeIdentifier": "t_array$_t_uint32_$dyn_storage_ptr",
                       "typeString": "uint32[]"
@@ -34933,13 +36822,13 @@
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                   "constant": false,
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                   "nameLocation": "-1:-1:-1",
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-                  "src": "7501:13:0",
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@@ -34948,18 +36837,18 @@
                   },
                   "typeName": {
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-                      "id": 601,
+                      "id": 1003,
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                       "nodeType": "ElementaryTypeName",
-                      "src": "7501:4:0",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
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+                    "id": 1004,
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                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_bool_$dyn_storage_ptr",
                       "typeString": "bool[]"
@@ -34968,37 +36857,37 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "7429:86:0"
+              "src": "7655:86:6"
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-            "scope": 2161,
-            "src": "7371:907:0",
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@@ -35006,91 +36895,91 @@
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                       "storageLocation": "memory",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_struct$_Commit_$114_memory_ptr",
+                        "typeIdentifier": "t_struct$_Commit_$504_memory_ptr",
                         "typeString": "struct ONEWallet.Commit"
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+                        "src": "8632:6:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                          "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                           "typeString": "struct ONEWallet.Commit"
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                         "overloadedDeclarations": [],
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                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
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                         "name": "paramsHash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
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-                        "src": "8438:10:0",
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                           "typeString": "bytes32"
                         }
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                         "name": "verificationHash",
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                         "overloadedDeclarations": [],
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-                        "src": "8450:16:0",
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+                        "src": "8676:16:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -35100,25 +36989,25 @@
                         "arguments": [
                           {
                             "expression": {
-                              "id": 758,
+                              "id": 1160,
                               "name": "block",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 4294967292,
-                              "src": "8475:5:0",
+                              "src": "8701:5:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_magic_block",
                                 "typeString": "block"
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                             "memberName": "timestamp",
                             "nodeType": "MemberAccess",
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+                            "src": "8701:15:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -35132,26 +37021,26 @@
                               "typeString": "uint256"
                             }
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                           "nodeType": "ElementaryTypeNameExpression",
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                           "typeDescriptions": {
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                             "typeString": "type(uint32)"
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+                            "id": 1158,
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@@ -35159,7 +37048,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
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@@ -35168,14 +37057,14 @@
                       },
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                         "hexValue": "66616c7365",
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                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "8493:5:0",
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                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -35206,18 +37095,18 @@
                           "typeString": "bool"
                         }
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                       "name": "Commit",
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-                      "src": "8425:6:0",
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                       "typeDescriptions": {
-                        "typeIdentifier": "t_type$_t_struct$_Commit_$114_storage_ptr_$",
+                        "typeIdentifier": "t_type$_t_struct$_Commit_$504_storage_ptr_$",
                         "typeString": "type(struct ONEWallet.Commit storage pointer)"
                       }
                     },
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@@ -35225,15 +37114,15 @@
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-                      "typeIdentifier": "t_struct$_Commit_$114_memory_ptr",
+                      "typeIdentifier": "t_struct$_Commit_$504_memory_ptr",
                       "typeString": "struct ONEWallet.Commit memory"
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                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "8406:93:0"
+                  "src": "8632:93:6"
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@@ -35243,32 +37132,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
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                         "leftExpression": {
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+                            "id": 1167,
                             "name": "commits",
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-                            "src": "8517:7:0",
+                            "referencedDeclaration": 507,
+                            "src": "8743:7:6",
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                               "typeIdentifier": "t_array$_t_bytes32_$dyn_storage",
                               "typeString": "bytes32[] storage ref"
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                           "memberName": "length",
                           "nodeType": "MemberAccess",
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                             "typeString": "uint256"
@@ -35277,18 +37166,18 @@
                         "nodeType": "BinaryOperation",
                         "operator": "<",
                         "rightExpression": {
-                          "id": 767,
+                          "id": 1169,
                           "name": "MAX_COMMIT_SIZE",
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                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
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@@ -35296,14 +37185,14 @@
                       },
                       {
                         "hexValue": "546f6f206d616e7920636f6d6d697473",
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                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
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                           "typeIdentifier": "t_stringliteral_0c1004916946b89dffc8743f953d4885accbd82403cd8bd9e53f384fa95731af",
                           "typeString": "literal_string \"Too many commits\""
@@ -35322,7 +37211,7 @@
                           "typeString": "literal_string \"Too many commits\""
                         }
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@@ -35330,13 +37219,13 @@
                         4294967278
                       ],
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                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (bool,string memory) pure"
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@@ -35344,27 +37233,27 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "8509:61:0",
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                       "typeString": "tuple()"
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                       {
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+                        "id": 1177,
                         "name": "hash",
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                         "overloadedDeclarations": [],
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-                        "src": "8593:4:0",
+                        "referencedDeclaration": 1141,
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                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -35379,31 +37268,31 @@
                         }
                       ],
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-                        "id": 772,
+                        "id": 1174,
                         "name": "commits",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 117,
-                        "src": "8580:7:0",
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                           "typeIdentifier": "t_array$_t_bytes32_$dyn_storage",
                           "typeString": "bytes32[] storage ref"
                         }
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                       "lValueRequested": false,
                       "memberName": "push",
                       "nodeType": "MemberAccess",
-                      "src": "8580:12:0",
+                      "src": "8806:12:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_bytes32_$dyn_storage_ptr_$_t_bytes32_$returns$__$bound_to$_t_array$_t_bytes32_$dyn_storage_ptr_$",
                         "typeString": "function (bytes32[] storage pointer,bytes32)"
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@@ -35411,29 +37300,29 @@
                     "lValueRequested": false,
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-                    "src": "8580:18:0",
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-                        "src": "8632:2:0",
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                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Commit_$114_memory_ptr",
+                          "typeIdentifier": "t_struct$_Commit_$504_memory_ptr",
                           "typeString": "struct ONEWallet.Commit memory"
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@@ -35441,31 +37330,31 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_struct$_Commit_$114_memory_ptr",
+                          "typeIdentifier": "t_struct$_Commit_$504_memory_ptr",
                           "typeString": "struct ONEWallet.Commit memory"
                         }
                       ],
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-                          "id": 778,
+                          "id": 1180,
                           "name": "commitLocker",
                           "nodeType": "Identifier",
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+                          "referencedDeclaration": 513,
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                           "typeDescriptions": {
-                            "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$114_storage_$dyn_storage_$",
+                            "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                             "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
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                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
@@ -35476,26 +37365,26 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "8608:18:0",
+                        "src": "8834:18:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage",
+                          "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                           "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
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                       "nodeType": "MemberAccess",
-                      "src": "8608:23:0",
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                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr_$_t_struct$_Commit_$114_storage_$returns$__$bound_to$_t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr_$",
+                        "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr_$_t_struct$_Commit_$504_storage_$returns$__$bound_to$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr_$",
                         "typeString": "function (struct ONEWallet.Commit storage ref[] storage pointer,struct ONEWallet.Commit storage ref)"
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@@ -35503,40 +37392,40 @@
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+            "id": 1188,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "commit",
-            "nameLocation": "8293:6:0",
+            "nameLocation": "8519:6:6",
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-              "id": 744,
+              "id": 1146,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 739,
+                  "id": 1141,
                   "mutability": "mutable",
                   "name": "hash",
-                  "nameLocation": "8308:4:0",
+                  "nameLocation": "8534:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 786,
-                  "src": "8300:12:0",
+                  "scope": 1188,
+                  "src": "8526:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -35544,10 +37433,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 738,
+                    "id": 1140,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "8300:7:0",
+                    "src": "8526:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -35557,13 +37446,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 741,
+                  "id": 1143,
                   "mutability": "mutable",
                   "name": "paramsHash",
-                  "nameLocation": "8322:10:0",
+                  "nameLocation": "8548:10:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 786,
-                  "src": "8314:18:0",
+                  "scope": 1188,
+                  "src": "8540:18:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -35571,10 +37460,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 740,
+                    "id": 1142,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "8314:7:0",
+                    "src": "8540:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -35584,13 +37473,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 743,
+                  "id": 1145,
                   "mutability": "mutable",
                   "name": "verificationHash",
-                  "nameLocation": "8342:16:0",
+                  "nameLocation": "8568:16:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 786,
-                  "src": "8334:24:0",
+                  "scope": 1188,
+                  "src": "8560:24:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -35598,10 +37487,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 742,
+                    "id": 1144,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "8334:7:0",
+                    "src": "8560:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -35610,41 +37499,41 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "8299:60:0"
+              "src": "8525:60:6"
             },
             "returnParameters": {
-              "id": 745,
+              "id": 1147,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "8369:0:0"
+              "src": "8595:0:6"
             },
-            "scope": 2161,
-            "src": "8284:358:0",
+            "scope": 2592,
+            "src": "8510:358:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "external"
           },
           {
             "body": {
-              "id": 807,
+              "id": 1209,
               "nodeType": "Block",
-              "src": "8926:216:0",
+              "src": "9152:216:6",
               "statements": [
                 {
                   "assignments": [
-                    793,
+                    1195,
                     null
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 793,
+                      "id": 1195,
                       "mutability": "mutable",
                       "name": "success",
-                      "nameLocation": "9042:7:0",
+                      "nameLocation": "9268:7:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 807,
-                      "src": "9037:12:0",
+                      "scope": 1209,
+                      "src": "9263:12:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -35652,10 +37541,10 @@
                         "typeString": "bool"
                       },
                       "typeName": {
-                        "id": 792,
+                        "id": 1194,
                         "name": "bool",
                         "nodeType": "ElementaryTypeName",
-                        "src": "9037:4:0",
+                        "src": "9263:4:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -35665,19 +37554,19 @@
                     },
                     null
                   ],
-                  "id": 804,
+                  "id": 1206,
                   "initialValue": {
                     "arguments": [
                       {
                         "hexValue": "",
-                        "id": 802,
+                        "id": 1204,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "9108:2:0",
+                        "src": "9334:2:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
                           "typeString": "literal_string \"\""
@@ -35700,31 +37589,31 @@
                           }
                         ],
                         "expression": {
-                          "id": 794,
+                          "id": 1196,
                           "name": "lastResortAddress",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 63,
-                          "src": "9054:17:0",
+                          "referencedDeclaration": 452,
+                          "src": "9280:17:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address_payable",
                             "typeString": "address payable"
                           }
                         },
-                        "id": 795,
+                        "id": 1197,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "call",
                         "nodeType": "MemberAccess",
-                        "src": "9054:22:0",
+                        "src": "9280:22:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$",
                           "typeString": "function (bytes memory) payable returns (bool,bytes memory)"
                         }
                       },
-                      "id": 801,
+                      "id": 1203,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -35738,14 +37627,14 @@
                           "expression": {
                             "arguments": [
                               {
-                                "id": 798,
+                                "id": 1200,
                                 "name": "this",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
                                 "referencedDeclaration": 4294967268,
-                                "src": "9093:4:0",
+                                "src": "9319:4:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                  "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                   "typeString": "contract ONEWallet"
                                 }
                               }
@@ -35753,30 +37642,30 @@
                             "expression": {
                               "argumentTypes": [
                                 {
-                                  "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                  "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                   "typeString": "contract ONEWallet"
                                 }
                               ],
-                              "id": 797,
+                              "id": 1199,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "9085:7:0",
+                              "src": "9311:7:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_address_$",
                                 "typeString": "type(address)"
                               },
                               "typeName": {
-                                "id": 796,
+                                "id": 1198,
                                 "name": "address",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "9085:7:0",
+                                "src": "9311:7:6",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 799,
+                            "id": 1201,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -35784,34 +37673,34 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "9085:13:0",
+                            "src": "9311:13:6",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_address",
                               "typeString": "address"
                             }
                           },
-                          "id": 800,
+                          "id": 1202,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "balance",
                           "nodeType": "MemberAccess",
-                          "src": "9085:21:0",
+                          "src": "9311:21:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         }
                       ],
-                      "src": "9054:53:0",
+                      "src": "9280:53:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$value",
                         "typeString": "function (bytes memory) payable returns (bool,bytes memory)"
                       }
                     },
-                    "id": 803,
+                    "id": 1205,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -35819,7 +37708,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "9054:57:0",
+                    "src": "9280:57:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$_t_bool_$_t_bytes_memory_ptr_$",
@@ -35827,60 +37716,60 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "9036:75:0"
+                  "src": "9262:75:6"
                 },
                 {
                   "expression": {
-                    "id": 805,
+                    "id": 1207,
                     "name": "success",
                     "nodeType": "Identifier",
                     "overloadedDeclarations": [],
-                    "referencedDeclaration": 793,
-                    "src": "9128:7:0",
+                    "referencedDeclaration": 1195,
+                    "src": "9354:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "functionReturnParameters": 791,
-                  "id": 806,
+                  "functionReturnParameters": 1193,
+                  "id": 1208,
                   "nodeType": "Return",
-                  "src": "9121:14:0"
+                  "src": "9347:14:6"
                 }
               ]
             },
             "documentation": {
-              "id": 787,
+              "id": 1189,
               "nodeType": "StructuredDocumentation",
-              "src": "8648:231:0",
+              "src": "8874:231:6",
               "text": "This function sends all remaining funds of the wallet to `lastResortAddress`. The caller should verify that `lastResortAddress` is not null.\n TODO: also transfer all tracked ERC20, 721, 1155 tokens to `lastResortAddress`"
             },
-            "id": 808,
+            "id": 1210,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_drain",
-            "nameLocation": "8893:6:0",
+            "nameLocation": "9119:6:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 788,
+              "id": 1190,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "8899:2:0"
+              "src": "9125:2:6"
             },
             "returnParameters": {
-              "id": 791,
+              "id": 1193,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 790,
+                  "id": 1192,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 808,
-                  "src": "8920:4:0",
+                  "scope": 1210,
+                  "src": "9146:4:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -35888,10 +37777,10 @@
                     "typeString": "bool"
                   },
                   "typeName": {
-                    "id": 789,
+                    "id": 1191,
                     "name": "bool",
                     "nodeType": "ElementaryTypeName",
-                    "src": "8920:4:0",
+                    "src": "9146:4:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -35900,34 +37789,34 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "8919:6:0"
+              "src": "9145:6:6"
             },
-            "scope": 2161,
-            "src": "8884:258:0",
+            "scope": 2592,
+            "src": "9110:258:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 907,
+              "id": 1313,
               "nodeType": "Block",
-              "src": "9229:859:0",
+              "src": "9455:894:6",
               "statements": [
                 {
                   "assignments": [
-                    818
+                    1220
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 818,
+                      "id": 1220,
                       "mutability": "mutable",
                       "name": "day",
-                      "nameLocation": "9246:3:0",
+                      "nameLocation": "9472:3:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 907,
-                      "src": "9239:10:0",
+                      "scope": 1313,
+                      "src": "9465:10:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -35935,10 +37824,10 @@
                         "typeString": "uint32"
                       },
                       "typeName": {
-                        "id": 817,
+                        "id": 1219,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "9239:6:0",
+                        "src": "9465:6:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -35947,7 +37836,7 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 826,
+                  "id": 1228,
                   "initialValue": {
                     "arguments": [
                       {
@@ -35955,32 +37844,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 824,
+                        "id": 1226,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 821,
+                            "id": 1223,
                             "name": "block",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 4294967292,
-                            "src": "9259:5:0",
+                            "src": "9485:5:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_magic_block",
                               "typeString": "block"
                             }
                           },
-                          "id": 822,
+                          "id": 1224,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "timestamp",
                           "nodeType": "MemberAccess",
-                          "src": "9259:15:0",
+                          "src": "9485:15:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -35989,18 +37878,18 @@
                         "nodeType": "BinaryOperation",
                         "operator": "/",
                         "rightExpression": {
-                          "id": 823,
+                          "id": 1225,
                           "name": "SECONDS_PER_DAY",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 83,
-                          "src": "9277:15:0",
+                          "referencedDeclaration": 472,
+                          "src": "9503:15:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "src": "9259:33:0",
+                        "src": "9485:33:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -36014,26 +37903,26 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 820,
+                      "id": 1222,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "ElementaryTypeNameExpression",
-                      "src": "9252:6:0",
+                      "src": "9478:6:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_type$_t_uint32_$",
                         "typeString": "type(uint32)"
                       },
                       "typeName": {
-                        "id": 819,
+                        "id": 1221,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "9252:6:0",
+                        "src": "9478:6:6",
                         "typeDescriptions": {}
                       }
                     },
-                    "id": 825,
+                    "id": 1227,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -36041,7 +37930,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "9252:41:0",
+                    "src": "9478:41:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
@@ -36049,7 +37938,7 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "9239:54:0"
+                  "src": "9465:54:6"
                 },
                 {
                   "condition": {
@@ -36057,18 +37946,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
-                    "id": 829,
+                    "id": 1231,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 827,
+                      "id": 1229,
                       "name": "day",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 818,
-                      "src": "9307:3:0",
+                      "referencedDeclaration": 1220,
+                      "src": "9533:3:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -36077,45 +37966,45 @@
                     "nodeType": "BinaryOperation",
                     "operator": ">",
                     "rightExpression": {
-                      "id": 828,
+                      "id": 1230,
                       "name": "lastTransferDay",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 69,
-                      "src": "9313:15:0",
+                      "referencedDeclaration": 458,
+                      "src": "9539:15:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "9307:21:0",
+                    "src": "9533:21:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 839,
+                  "id": 1241,
                   "nodeType": "IfStatement",
-                  "src": "9303:101:0",
+                  "src": "9529:101:6",
                   "trueBody": {
-                    "id": 838,
+                    "id": 1240,
                     "nodeType": "Block",
-                    "src": "9330:74:0",
+                    "src": "9556:74:6",
                     "statements": [
                       {
                         "expression": {
-                          "id": 832,
+                          "id": 1234,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
-                            "id": 830,
+                            "id": 1232,
                             "name": "spentToday",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 67,
-                            "src": "9344:10:0",
+                            "referencedDeclaration": 456,
+                            "src": "9570:10:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -36125,44 +38014,44 @@
                           "operator": "=",
                           "rightHandSide": {
                             "hexValue": "30",
-                            "id": 831,
+                            "id": 1233,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "9357:1:0",
+                            "src": "9583:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_0_by_1",
                               "typeString": "int_const 0"
                             },
                             "value": "0"
                           },
-                          "src": "9344:14:0",
+                          "src": "9570:14:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
-                        "id": 833,
+                        "id": 1235,
                         "nodeType": "ExpressionStatement",
-                        "src": "9344:14:0"
+                        "src": "9570:14:6"
                       },
                       {
                         "expression": {
-                          "id": 836,
+                          "id": 1238,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
-                            "id": 834,
+                            "id": 1236,
                             "name": "lastTransferDay",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 69,
-                            "src": "9372:15:0",
+                            "referencedDeclaration": 458,
+                            "src": "9598:15:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -36171,26 +38060,26 @@
                           "nodeType": "Assignment",
                           "operator": "=",
                           "rightHandSide": {
-                            "id": 835,
+                            "id": 1237,
                             "name": "day",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 818,
-                            "src": "9390:3:0",
+                            "referencedDeclaration": 1220,
+                            "src": "9616:3:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
                             }
                           },
-                          "src": "9372:21:0",
+                          "src": "9598:21:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "id": 837,
+                        "id": 1239,
                         "nodeType": "ExpressionStatement",
-                        "src": "9372:21:0"
+                        "src": "9598:21:6"
                       }
                     ]
                   }
@@ -36201,7 +38090,7 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 844,
+                    "id": 1246,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -36211,18 +38100,18 @@
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       },
-                      "id": 842,
+                      "id": 1244,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "leftExpression": {
-                        "id": 840,
+                        "id": 1242,
                         "name": "spentToday",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 67,
-                        "src": "9417:10:0",
+                        "referencedDeclaration": 456,
+                        "src": "9643:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -36231,18 +38120,18 @@
                       "nodeType": "BinaryOperation",
                       "operator": "+",
                       "rightExpression": {
-                        "id": 841,
+                        "id": 1243,
                         "name": "amount",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 812,
-                        "src": "9430:6:0",
+                        "referencedDeclaration": 1214,
+                        "src": "9656:6:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         }
                       },
-                      "src": "9417:19:0",
+                      "src": "9643:19:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
@@ -36251,77 +38140,77 @@
                     "nodeType": "BinaryOperation",
                     "operator": ">",
                     "rightExpression": {
-                      "id": 843,
+                      "id": 1245,
                       "name": "dailyLimit",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 65,
-                      "src": "9439:10:0",
+                      "referencedDeclaration": 454,
+                      "src": "9665:10:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "9417:32:0",
+                    "src": "9643:32:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 855,
+                  "id": 1257,
                   "nodeType": "IfStatement",
-                  "src": "9413:148:0",
+                  "src": "9639:148:6",
                   "trueBody": {
-                    "id": 854,
+                    "id": 1256,
                     "nodeType": "Block",
-                    "src": "9451:110:0",
+                    "src": "9677:110:6",
                     "statements": [
                       {
                         "eventCall": {
                           "arguments": [
                             {
-                              "id": 846,
+                              "id": 1248,
                               "name": "amount",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 812,
-                              "src": "9487:6:0",
+                              "referencedDeclaration": 1214,
+                              "src": "9713:6:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
                             {
-                              "id": 847,
+                              "id": 1249,
                               "name": "dailyLimit",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 65,
-                              "src": "9495:10:0",
+                              "referencedDeclaration": 454,
+                              "src": "9721:10:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
                             {
-                              "id": 848,
+                              "id": 1250,
                               "name": "spentToday",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 67,
-                              "src": "9507:10:0",
+                              "referencedDeclaration": 456,
+                              "src": "9733:10:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
                             {
-                              "id": 849,
+                              "id": 1251,
                               "name": "dest",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 810,
-                              "src": "9519:4:0",
+                              "referencedDeclaration": 1212,
+                              "src": "9745:4:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address_payable",
                                 "typeString": "address payable"
@@ -36347,18 +38236,18 @@
                                 "typeString": "address payable"
                               }
                             ],
-                            "id": 845,
+                            "id": 1247,
                             "name": "ExceedDailyLimit",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 23,
-                            "src": "9470:16:0",
+                            "referencedDeclaration": 410,
+                            "src": "9696:16:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_event_nonpayable$_t_uint256_$_t_uint256_$_t_uint256_$_t_address_$returns$__$",
                               "typeString": "function (uint256,uint256,uint256,address)"
                             }
                           },
-                          "id": 850,
+                          "id": 1252,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -36366,38 +38255,38 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "9470:54:0",
+                          "src": "9696:54:6",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 851,
+                        "id": 1253,
                         "nodeType": "EmitStatement",
-                        "src": "9465:59:0"
+                        "src": "9691:59:6"
                       },
                       {
                         "expression": {
                           "hexValue": "66616c7365",
-                          "id": 852,
+                          "id": 1254,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "bool",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "9545:5:0",
+                          "src": "9771:5:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           },
                           "value": "false"
                         },
-                        "functionReturnParameters": 816,
-                        "id": 853,
+                        "functionReturnParameters": 1218,
+                        "id": 1255,
                         "nodeType": "Return",
-                        "src": "9538:12:0"
+                        "src": "9764:12:6"
                       }
                     ]
                   }
@@ -36408,7 +38297,7 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 862,
+                    "id": 1264,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -36417,14 +38306,14 @@
                       "expression": {
                         "arguments": [
                           {
-                            "id": 858,
+                            "id": 1260,
                             "name": "this",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 4294967268,
-                            "src": "9582:4:0",
+                            "src": "9808:4:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                              "typeIdentifier": "t_contract$_ONEWallet_$2592",
                               "typeString": "contract ONEWallet"
                             }
                           }
@@ -36432,30 +38321,30 @@
                         "expression": {
                           "argumentTypes": [
                             {
-                              "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                              "typeIdentifier": "t_contract$_ONEWallet_$2592",
                               "typeString": "contract ONEWallet"
                             }
                           ],
-                          "id": 857,
+                          "id": 1259,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "lValueRequested": false,
                           "nodeType": "ElementaryTypeNameExpression",
-                          "src": "9574:7:0",
+                          "src": "9800:7:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_type$_t_address_$",
                             "typeString": "type(address)"
                           },
                           "typeName": {
-                            "id": 856,
+                            "id": 1258,
                             "name": "address",
                             "nodeType": "ElementaryTypeName",
-                            "src": "9574:7:0",
+                            "src": "9800:7:6",
                             "typeDescriptions": {}
                           }
                         },
-                        "id": 859,
+                        "id": 1261,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -36463,21 +38352,21 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "9574:13:0",
+                        "src": "9800:13:6",
                         "tryCall": false,
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
-                      "id": 860,
+                      "id": 1262,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "balance",
                       "nodeType": "MemberAccess",
-                      "src": "9574:21:0",
+                      "src": "9800:21:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
@@ -36486,41 +38375,41 @@
                     "nodeType": "BinaryOperation",
                     "operator": "<",
                     "rightExpression": {
-                      "id": 861,
+                      "id": 1263,
                       "name": "amount",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 812,
-                      "src": "9598:6:0",
+                      "referencedDeclaration": 1214,
+                      "src": "9824:6:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "9574:30:0",
+                    "src": "9800:30:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 876,
+                  "id": 1278,
                   "nodeType": "IfStatement",
-                  "src": "9570:145:0",
+                  "src": "9796:145:6",
                   "trueBody": {
-                    "id": 875,
+                    "id": 1277,
                     "nodeType": "Block",
-                    "src": "9606:109:0",
+                    "src": "9832:109:6",
                     "statements": [
                       {
                         "eventCall": {
                           "arguments": [
                             {
-                              "id": 864,
+                              "id": 1266,
                               "name": "amount",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 812,
-                              "src": "9642:6:0",
+                              "referencedDeclaration": 1214,
+                              "src": "9868:6:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -36530,14 +38419,14 @@
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 867,
+                                    "id": 1269,
                                     "name": "this",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 4294967268,
-                                    "src": "9658:4:0",
+                                    "src": "9884:4:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                       "typeString": "contract ONEWallet"
                                     }
                                   }
@@ -36545,30 +38434,30 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                       "typeString": "contract ONEWallet"
                                     }
                                   ],
-                                  "id": 866,
+                                  "id": 1268,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "9650:7:0",
+                                  "src": "9876:7:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_address_$",
                                     "typeString": "type(address)"
                                   },
                                   "typeName": {
-                                    "id": 865,
+                                    "id": 1267,
                                     "name": "address",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "9650:7:0",
+                                    "src": "9876:7:6",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 868,
+                                "id": 1270,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -36576,33 +38465,33 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "9650:13:0",
+                                "src": "9876:13:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_address",
                                   "typeString": "address"
                                 }
                               },
-                              "id": 869,
+                              "id": 1271,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
                               "lValueRequested": false,
                               "memberName": "balance",
                               "nodeType": "MemberAccess",
-                              "src": "9650:21:0",
+                              "src": "9876:21:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
                             {
-                              "id": 870,
+                              "id": 1272,
                               "name": "dest",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 810,
-                              "src": "9673:4:0",
+                              "referencedDeclaration": 1212,
+                              "src": "9899:4:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address_payable",
                                 "typeString": "address payable"
@@ -36624,18 +38513,18 @@
                                 "typeString": "address payable"
                               }
                             ],
-                            "id": 863,
+                            "id": 1265,
                             "name": "InsufficientFund",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 13,
-                            "src": "9625:16:0",
+                            "referencedDeclaration": 400,
+                            "src": "9851:16:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_event_nonpayable$_t_uint256_$_t_uint256_$_t_address_$returns$__$",
                               "typeString": "function (uint256,uint256,address)"
                             }
                           },
-                          "id": 871,
+                          "id": 1273,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -36643,57 +38532,100 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "9625:53:0",
+                          "src": "9851:53:6",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 872,
+                        "id": 1274,
                         "nodeType": "EmitStatement",
-                        "src": "9620:58:0"
+                        "src": "9846:58:6"
                       },
                       {
                         "expression": {
                           "hexValue": "66616c7365",
-                          "id": 873,
+                          "id": 1275,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "bool",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "9699:5:0",
+                          "src": "9925:5:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           },
                           "value": "false"
                         },
-                        "functionReturnParameters": 816,
-                        "id": 874,
+                        "functionReturnParameters": 1218,
+                        "id": 1276,
                         "nodeType": "Return",
-                        "src": "9692:12:0"
+                        "src": "9918:12:6"
                       }
                     ]
                   }
                 },
+                {
+                  "expression": {
+                    "id": 1281,
+                    "isConstant": false,
+                    "isLValue": false,
+                    "isPure": false,
+                    "lValueRequested": false,
+                    "leftHandSide": {
+                      "id": 1279,
+                      "name": "spentToday",
+                      "nodeType": "Identifier",
+                      "overloadedDeclarations": [],
+                      "referencedDeclaration": 456,
+                      "src": "9950:10:6",
+                      "typeDescriptions": {
+                        "typeIdentifier": "t_uint256",
+                        "typeString": "uint256"
+                      }
+                    },
+                    "nodeType": "Assignment",
+                    "operator": "+=",
+                    "rightHandSide": {
+                      "id": 1280,
+                      "name": "amount",
+                      "nodeType": "Identifier",
+                      "overloadedDeclarations": [],
+                      "referencedDeclaration": 1214,
+                      "src": "9964:6:6",
+                      "typeDescriptions": {
+                        "typeIdentifier": "t_uint256",
+                        "typeString": "uint256"
+                      }
+                    },
+                    "src": "9950:20:6",
+                    "typeDescriptions": {
+                      "typeIdentifier": "t_uint256",
+                      "typeString": "uint256"
+                    }
+                  },
+                  "id": 1282,
+                  "nodeType": "ExpressionStatement",
+                  "src": "9950:20:6"
+                },
                 {
                   "assignments": [
-                    878,
+                    1284,
                     null
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 878,
+                      "id": 1284,
                       "mutability": "mutable",
                       "name": "success",
-                      "nameLocation": "9730:7:0",
+                      "nameLocation": "9986:7:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 907,
-                      "src": "9725:12:0",
+                      "scope": 1313,
+                      "src": "9981:12:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -36701,10 +38633,10 @@
                         "typeString": "bool"
                       },
                       "typeName": {
-                        "id": 877,
+                        "id": 1283,
                         "name": "bool",
                         "nodeType": "ElementaryTypeName",
-                        "src": "9725:4:0",
+                        "src": "9981:4:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -36714,19 +38646,19 @@
                     },
                     null
                   ],
-                  "id": 885,
+                  "id": 1291,
                   "initialValue": {
                     "arguments": [
                       {
                         "hexValue": "",
-                        "id": 883,
+                        "id": 1289,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "9768:2:0",
+                        "src": "10024:2:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
                           "typeString": "literal_string \"\""
@@ -36749,31 +38681,31 @@
                           }
                         ],
                         "expression": {
-                          "id": 879,
+                          "id": 1285,
                           "name": "dest",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 810,
-                          "src": "9742:4:0",
+                          "referencedDeclaration": 1212,
+                          "src": "9998:4:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address_payable",
                             "typeString": "address payable"
                           }
                         },
-                        "id": 880,
+                        "id": 1286,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "call",
                         "nodeType": "MemberAccess",
-                        "src": "9742:9:0",
+                        "src": "9998:9:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$",
                           "typeString": "function (bytes memory) payable returns (bool,bytes memory)"
                         }
                       },
-                      "id": 882,
+                      "id": 1288,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -36784,25 +38716,25 @@
                       "nodeType": "FunctionCallOptions",
                       "options": [
                         {
-                          "id": 881,
+                          "id": 1287,
                           "name": "amount",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 812,
-                          "src": "9760:6:0",
+                          "referencedDeclaration": 1214,
+                          "src": "10016:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         }
                       ],
-                      "src": "9742:25:0",
+                      "src": "9998:25:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$value",
                         "typeString": "function (bytes memory) payable returns (bool,bytes memory)"
                       }
                     },
-                    "id": 884,
+                    "id": 1290,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -36810,7 +38742,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "9742:29:0",
+                    "src": "9998:29:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$_t_bool_$_t_bytes_memory_ptr_$",
@@ -36818,11 +38750,11 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "9724:47:0"
+                  "src": "9980:47:6"
                 },
                 {
                   "condition": {
-                    "id": 887,
+                    "id": 1293,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -36830,14 +38762,14 @@
                     "nodeType": "UnaryOperation",
                     "operator": "!",
                     "prefix": true,
-                    "src": "9899:8:0",
+                    "src": "10155:8:6",
                     "subExpression": {
-                      "id": 886,
+                      "id": 1292,
                       "name": "success",
                       "nodeType": "Identifier",
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@@ -36848,24 +38780,67 @@
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+                            "name": "spentToday",
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+                            "referencedDeclaration": 456,
+                            "src": "10179:10:6",
+                            "typeDescriptions": {
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+                              "typeString": "uint256"
+                            }
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+                          "operator": "-=",
+                          "rightHandSide": {
+                            "id": 1295,
+                            "name": "amount",
+                            "nodeType": "Identifier",
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+                            "referencedDeclaration": 1214,
+                            "src": "10193:6:6",
+                            "typeDescriptions": {
+                              "typeIdentifier": "t_uint256",
+                              "typeString": "uint256"
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+                          "typeDescriptions": {
+                            "typeIdentifier": "t_uint256",
+                            "typeString": "uint256"
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                                 "typeString": "address payable"
@@ -36879,18 +38854,18 @@
                                 "typeString": "address payable"
                               }
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                               "typeString": "function (address)"
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@@ -36898,107 +38873,64 @@
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@@ -37016,18 +38948,18 @@
                           "typeString": "address payable"
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@@ -37035,61 +38967,61 @@
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@@ -37097,10 +39029,10 @@
                     "typeString": "address payable"
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@@ -37111,13 +39043,13 @@
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@@ -37125,10 +39057,10 @@
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@@ -37137,21 +39069,21 @@
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@@ -37159,10 +39091,10 @@
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@@ -37171,19 +39103,19 @@
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@@ -37191,18 +39123,18 @@
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@@ -37214,14 +39146,14 @@
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@@ -37236,26 +39168,26 @@
                             "typeString": "int_const 0"
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                         "nodeType": "ElementaryTypeNameExpression",
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                           "typeString": "type(address)"
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@@ -37263,44 +39195,44 @@
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                         "typeString": "address"
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@@ -37308,45 +39240,45 @@
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@@ -37354,23 +39286,23 @@
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@@ -37378,7 +39310,7 @@
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@@ -37390,31 +39322,31 @@
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@@ -37422,38 +39354,38 @@
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@@ -37461,53 +39393,53 @@
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             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_recover",
-            "nameLocation": "10103:8:0",
+            "nameLocation": "10364:8:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 909,
+              "id": 1315,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "10111:2:0"
+              "src": "10372:2:6"
             },
             "returnParameters": {
-              "id": 912,
+              "id": 1318,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
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+                  "id": 1317,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 939,
-                  "src": "10132:4:0",
+                  "scope": 1345,
+                  "src": "10393:4:6",
                   "stateVariable": false,
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@@ -37515,10 +39447,10 @@
                     "typeString": "bool"
                   },
                   "typeName": {
-                    "id": 910,
+                    "id": 1316,
                     "name": "bool",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10132:4:0",
+                    "src": "10393:4:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -37527,19 +39459,19 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "10131:6:0"
+              "src": "10392:6:6"
             },
-            "scope": 2161,
-            "src": "10094:295:0",
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+            "src": "10355:295:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 958,
+              "id": 1364,
               "nodeType": "Block",
-              "src": "10469:143:0",
+              "src": "10730:143:6",
               "statements": [
                 {
                   "expression": {
@@ -37549,18 +39481,18 @@
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         },
-                        "id": 950,
+                        "id": 1356,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
-                          "id": 945,
+                          "id": 1351,
                           "name": "lastResortAddress",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 63,
-                          "src": "10487:17:0",
+                          "referencedDeclaration": 452,
+                          "src": "10748:17:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address_payable",
                             "typeString": "address payable"
@@ -37572,14 +39504,14 @@
                           "arguments": [
                             {
                               "hexValue": "30",
-                              "id": 948,
+                              "id": 1354,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "kind": "number",
                               "lValueRequested": false,
                               "nodeType": "Literal",
-                              "src": "10516:1:0",
+                              "src": "10777:1:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_rational_0_by_1",
                                 "typeString": "int_const 0"
@@ -37594,26 +39526,26 @@
                                 "typeString": "int_const 0"
                               }
                             ],
-                            "id": 947,
+                            "id": 1353,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "10508:7:0",
+                            "src": "10769:7:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_address_$",
                               "typeString": "type(address)"
                             },
                             "typeName": {
-                              "id": 946,
+                              "id": 1352,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "10508:7:0",
+                              "src": "10769:7:6",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 949,
+                          "id": 1355,
                           "isConstant": false,
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@@ -37621,14 +39553,14 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "10508:10:0",
+                          "src": "10769:10:6",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
                             "typeString": "address"
                           }
                         },
-                        "src": "10487:31:0",
+                        "src": "10748:31:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -37636,14 +39568,14 @@
                       },
                       {
                         "hexValue": "4c617374207265736f7274206164647265737320697320616c726561647920736574",
-                        "id": 951,
+                        "id": 1357,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "10520:36:0",
+                        "src": "10781:36:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_bc3ff827c71f29679c970d77c58ec807a06259e86e9cd823a8554b04d0d6f030",
                           "typeString": "literal_string \"Last resort address is already set\""
@@ -37662,7 +39594,7 @@
                           "typeString": "literal_string \"Last resort address is already set\""
                         }
                       ],
-                      "id": 944,
+                      "id": 1350,
                       "name": "require",
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@@ -37670,13 +39602,13 @@
                         4294967278
                       ],
                       "referencedDeclaration": 4294967278,
-                      "src": "10479:7:0",
+                      "src": "10740:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (bool,string memory) pure"
                       }
                     },
-                    "id": 952,
+                    "id": 1358,
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@@ -37684,31 +39616,31 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "10479:78:0",
+                    "src": "10740:78:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
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+                  "id": 1359,
                   "nodeType": "ExpressionStatement",
-                  "src": "10479:78:0"
+                  "src": "10740:78:6"
                 },
                 {
                   "expression": {
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+                    "id": 1362,
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                     "lValueRequested": false,
                     "leftHandSide": {
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+                      "id": 1360,
                       "name": "lastResortAddress",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 63,
-                      "src": "10567:17:0",
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+                      "src": "10828:17:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address_payable",
                         "typeString": "address payable"
@@ -37717,49 +39649,49 @@
                     "nodeType": "Assignment",
                     "operator": "=",
                     "rightHandSide": {
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+                      "id": 1361,
                       "name": "lastResortAddress_",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
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-                      "src": "10587:18:0",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_address_payable",
                         "typeString": "address payable"
                       }
                     },
-                    "src": "10567:38:0",
+                    "src": "10828:38:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address_payable",
                       "typeString": "address payable"
                     }
                   },
-                  "id": 957,
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-                  "src": "10567:38:0"
+                  "src": "10828:38:6"
                 }
               ]
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             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_setRecoveryAddress",
-            "nameLocation": "10404:19:0",
+            "nameLocation": "10665:19:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
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+                  "id": 1347,
                   "mutability": "mutable",
                   "name": "lastResortAddress_",
-                  "nameLocation": "10440:18:0",
+                  "nameLocation": "10701:18:6",
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-                  "src": "10424:34:0",
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+                  "src": "10685:34:6",
                   "stateVariable": false,
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@@ -37767,10 +39699,10 @@
                     "typeString": "address payable"
                   },
                   "typeName": {
-                    "id": 940,
+                    "id": 1346,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10424:15:0",
+                    "src": "10685:15:6",
                     "stateMutability": "payable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address_payable",
@@ -37780,46 +39712,46 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "10423:36:0"
+              "src": "10684:36:6"
             },
             "returnParameters": {
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               "parameters": [],
-              "src": "10469:0:0"
+              "src": "10730:0:6"
             },
-            "scope": 2161,
-            "src": "10395:217:0",
+            "scope": 2592,
+            "src": "10656:217:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 1154,
+              "id": 1560,
               "nodeType": "Block",
-              "src": "10763:1828:0",
+              "src": "11024:1828:6",
               "statements": [
                 {
                   "condition": {
                     "commonType": {
-                      "typeIdentifier": "t_enum$_TokenType_$2176",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     },
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                     "lValueRequested": false,
                     "leftExpression": {
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                       "name": "tokenType",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 962,
-                      "src": "10777:9:0",
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+                      "src": "11038:9:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_TokenType_$2176",
+                        "typeIdentifier": "t_enum$_TokenType_$2607",
                         "typeString": "enum TokenTracker.TokenType"
                       }
                     },
@@ -37827,32 +39759,32 @@
                     "operator": "==",
                     "rightExpression": {
                       "expression": {
-                        "id": 976,
+                        "id": 1382,
                         "name": "TokenType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2176,
-                        "src": "10790:9:0",
+                        "referencedDeclaration": 2607,
+                        "src": "11051:9:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_type$_t_enum$_TokenType_$2176_$",
+                          "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                           "typeString": "type(enum TokenTracker.TokenType)"
                         }
                       },
-                      "id": 977,
+                      "id": 1383,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "memberName": "ERC20",
                       "nodeType": "MemberAccess",
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-                      "src": "10790:15:0",
+                      "referencedDeclaration": 2603,
+                      "src": "11051:15:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_TokenType_$2176",
+                        "typeIdentifier": "t_enum$_TokenType_$2607",
                         "typeString": "enum TokenTracker.TokenType"
                       }
                     },
-                    "src": "10777:28:0",
+                    "src": "11038:28:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -37861,23 +39793,23 @@
                   "falseBody": {
                     "condition": {
                       "commonType": {
-                        "typeIdentifier": "t_enum$_TokenType_$2176",
+                        "typeIdentifier": "t_enum$_TokenType_$2607",
                         "typeString": "enum TokenTracker.TokenType"
                       },
-                      "id": 1047,
+                      "id": 1453,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "leftExpression": {
-                        "id": 1044,
+                        "id": 1450,
                         "name": "tokenType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 962,
-                        "src": "11536:9:0",
+                        "referencedDeclaration": 1368,
+                        "src": "11797:9:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
@@ -37885,32 +39817,32 @@
                       "operator": "==",
                       "rightExpression": {
                         "expression": {
-                          "id": 1045,
+                          "id": 1451,
                           "name": "TokenType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2176,
-                          "src": "11549:9:0",
+                          "referencedDeclaration": 2607,
+                          "src": "11810:9:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2176_$",
+                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                             "typeString": "type(enum TokenTracker.TokenType)"
                           }
                         },
-                        "id": 1046,
+                        "id": 1452,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "memberName": "ERC721",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 2173,
-                        "src": "11549:16:0",
+                        "referencedDeclaration": 2604,
+                        "src": "11810:16:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
-                      "src": "11536:29:0",
+                      "src": "11797:29:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
@@ -37919,23 +39851,23 @@
                     "falseBody": {
                       "condition": {
                         "commonType": {
-                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
-                        "id": 1100,
+                        "id": 1506,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
-                          "id": 1097,
+                          "id": 1503,
                           "name": "tokenType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 962,
-                          "src": "12060:9:0",
+                          "referencedDeclaration": 1368,
+                          "src": "12321:9:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
@@ -37943,111 +39875,111 @@
                         "operator": "==",
                         "rightExpression": {
                           "expression": {
-                            "id": 1098,
+                            "id": 1504,
                             "name": "TokenType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2176,
-                            "src": "12073:9:0",
+                            "referencedDeclaration": 2607,
+                            "src": "12334:9:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2176_$",
+                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                               "typeString": "type(enum TokenTracker.TokenType)"
                             }
                           },
-                          "id": 1099,
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                           "isConstant": false,
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                           "lValueRequested": false,
                           "memberName": "ERC1155",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2174,
-                          "src": "12073:17:0",
+                          "referencedDeclaration": 2605,
+                          "src": "12334:17:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
-                        "src": "12060:30:0",
+                        "src": "12321:30:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
                         }
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+                      "id": 1557,
                       "nodeType": "IfStatement",
-                      "src": "12056:529:0",
+                      "src": "12317:529:6",
                       "trueBody": {
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+                        "id": 1556,
                         "nodeType": "Block",
-                        "src": "12092:493:0",
+                        "src": "12353:493:6",
                         "statements": [
                           {
                             "clauses": [
                               {
                                 "block": {
-                                  "id": 1122,
+                                  "id": 1528,
                                   "nodeType": "Block",
-                                  "src": "12197:111:0",
+                                  "src": "12458:111:6",
                                   "statements": [
                                     {
                                       "eventCall": {
                                         "arguments": [
                                           {
-                                            "id": 1115,
+                                            "id": 1521,
                                             "name": "tokenType",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 962,
-                                            "src": "12243:9:0",
+                                            "referencedDeclaration": 1368,
+                                            "src": "12504:9:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_enum$_TokenType_$2176",
+                                              "typeIdentifier": "t_enum$_TokenType_$2607",
                                               "typeString": "enum TokenTracker.TokenType"
                                             }
                                           },
                                           {
-                                            "id": 1116,
+                                            "id": 1522,
                                             "name": "contractAddress",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 964,
-                                            "src": "12254:15:0",
+                                            "referencedDeclaration": 1370,
+                                            "src": "12515:15:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
                                               "typeString": "address"
                                             }
                                           },
                                           {
-                                            "id": 1117,
+                                            "id": 1523,
                                             "name": "tokenId",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 966,
-                                            "src": "12271:7:0",
+                                            "referencedDeclaration": 1372,
+                                            "src": "12532:7:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint256",
                                               "typeString": "uint256"
                                             }
                                           },
                                           {
-                                            "id": 1118,
+                                            "id": 1524,
                                             "name": "dest",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 968,
-                                            "src": "12280:4:0",
+                                            "referencedDeclaration": 1374,
+                                            "src": "12541:4:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
                                               "typeString": "address"
                                             }
                                           },
                                           {
-                                            "id": 1119,
+                                            "id": 1525,
                                             "name": "amount",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 970,
-                                            "src": "12286:6:0",
+                                            "referencedDeclaration": 1376,
+                                            "src": "12547:6:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint256",
                                               "typeString": "uint256"
@@ -38057,7 +39989,7 @@
                                         "expression": {
                                           "argumentTypes": [
                                             {
-                                              "typeIdentifier": "t_enum$_TokenType_$2176",
+                                              "typeIdentifier": "t_enum$_TokenType_$2607",
                                               "typeString": "enum TokenTracker.TokenType"
                                             },
                                             {
@@ -38077,18 +40009,18 @@
                                               "typeString": "uint256"
                                             }
                                           ],
-                                          "id": 1114,
+                                          "id": 1520,
                                           "name": "TokenTransferSucceeded",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2261,
-                                          "src": "12220:22:0",
+                                          "referencedDeclaration": 2692,
+                                          "src": "12481:22:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                             "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                           }
                                         },
-                                        "id": 1120,
+                                        "id": 1526,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -38096,100 +40028,100 @@
                                         "lValueRequested": false,
                                         "names": [],
                                         "nodeType": "FunctionCall",
-                                        "src": "12220:73:0",
+                                        "src": "12481:73:6",
                                         "tryCall": false,
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_tuple$__$",
                                           "typeString": "tuple()"
                                         }
                                       },
-                                      "id": 1121,
+                                      "id": 1527,
                                       "nodeType": "EmitStatement",
-                                      "src": "12215:78:0"
+                                      "src": "12476:78:6"
                                     }
                                   ]
                                 },
                                 "errorName": "",
-                                "id": 1123,
+                                "id": 1529,
                                 "nodeType": "TryCatchClause",
-                                "src": "12197:111:0"
+                                "src": "12458:111:6"
                               },
                               {
                                 "block": {
-                                  "id": 1136,
+                                  "id": 1542,
                                   "nodeType": "Block",
-                                  "src": "12342:115:0",
+                                  "src": "12603:115:6",
                                   "statements": [
                                     {
                                       "eventCall": {
                                         "arguments": [
                                           {
-                                            "id": 1128,
+                                            "id": 1534,
                                             "name": "tokenType",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 962,
-                                            "src": "12384:9:0",
+                                            "referencedDeclaration": 1368,
+                                            "src": "12645:9:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_enum$_TokenType_$2176",
+                                              "typeIdentifier": "t_enum$_TokenType_$2607",
                                               "typeString": "enum TokenTracker.TokenType"
                                             }
                                           },
                                           {
-                                            "id": 1129,
+                                            "id": 1535,
                                             "name": "contractAddress",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 964,
-                                            "src": "12395:15:0",
+                                            "referencedDeclaration": 1370,
+                                            "src": "12656:15:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
                                               "typeString": "address"
                                             }
                                           },
                                           {
-                                            "id": 1130,
+                                            "id": 1536,
                                             "name": "tokenId",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 966,
-                                            "src": "12412:7:0",
+                                            "referencedDeclaration": 1372,
+                                            "src": "12673:7:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint256",
                                               "typeString": "uint256"
                                             }
                                           },
                                           {
-                                            "id": 1131,
+                                            "id": 1537,
                                             "name": "dest",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 968,
-                                            "src": "12421:4:0",
+                                            "referencedDeclaration": 1374,
+                                            "src": "12682:4:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
                                               "typeString": "address"
                                             }
                                           },
                                           {
-                                            "id": 1132,
+                                            "id": 1538,
                                             "name": "amount",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 970,
-                                            "src": "12427:6:0",
+                                            "referencedDeclaration": 1376,
+                                            "src": "12688:6:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint256",
                                               "typeString": "uint256"
                                             }
                                           },
                                           {
-                                            "id": 1133,
+                                            "id": 1539,
                                             "name": "reason",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 1125,
-                                            "src": "12435:6:0",
+                                            "referencedDeclaration": 1531,
+                                            "src": "12696:6:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_string_memory_ptr",
                                               "typeString": "string memory"
@@ -38199,7 +40131,7 @@
                                         "expression": {
                                           "argumentTypes": [
                                             {
-                                              "typeIdentifier": "t_enum$_TokenType_$2176",
+                                              "typeIdentifier": "t_enum$_TokenType_$2607",
                                               "typeString": "enum TokenTracker.TokenType"
                                             },
                                             {
@@ -38223,18 +40155,18 @@
                                               "typeString": "string memory"
                                             }
                                           ],
-                                          "id": 1127,
+                                          "id": 1533,
                                           "name": "TokenTransferError",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2248,
-                                          "src": "12365:18:0",
+                                          "referencedDeclaration": 2679,
+                                          "src": "12626:18:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                             "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                           }
                                         },
-                                        "id": 1134,
+                                        "id": 1540,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -38242,35 +40174,35 @@
                                         "lValueRequested": false,
                                         "names": [],
                                         "nodeType": "FunctionCall",
-                                        "src": "12365:77:0",
+                                        "src": "12626:77:6",
                                         "tryCall": false,
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_tuple$__$",
                                           "typeString": "tuple()"
                                         }
                                       },
-                                      "id": 1135,
+                                      "id": 1541,
                                       "nodeType": "EmitStatement",
-                                      "src": "12360:82:0"
+                                      "src": "12621:82:6"
                                     }
                                   ]
                                 },
                                 "errorName": "Error",
-                                "id": 1137,
+                                "id": 1543,
                                 "nodeType": "TryCatchClause",
                                 "parameters": {
-                                  "id": 1126,
+                                  "id": 1532,
                                   "nodeType": "ParameterList",
                                   "parameters": [
                                     {
                                       "constant": false,
-                                      "id": 1125,
+                                      "id": 1531,
                                       "mutability": "mutable",
                                       "name": "reason",
-                                      "nameLocation": "12335:6:0",
+                                      "nameLocation": "12596:6:6",
                                       "nodeType": "VariableDeclaration",
-                                      "scope": 1137,
-                                      "src": "12321:20:0",
+                                      "scope": 1543,
+                                      "src": "12582:20:6",
                                       "stateVariable": false,
                                       "storageLocation": "memory",
                                       "typeDescriptions": {
@@ -38278,10 +40210,10 @@
                                         "typeString": "string"
                                       },
                                       "typeName": {
-                                        "id": 1124,
+                                        "id": 1530,
                                         "name": "string",
                                         "nodeType": "ElementaryTypeName",
-                                        "src": "12321:6:0",
+                                        "src": "12582:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_string_storage_ptr",
                                           "typeString": "string"
@@ -38290,74 +40222,74 @@
                                       "visibility": "internal"
                                     }
                                   ],
-                                  "src": "12320:22:0"
+                                  "src": "12581:22:6"
                                 },
-                                "src": "12309:148:0"
+                                "src": "12570:148:6"
                               },
                               {
                                 "block": {
-                                  "id": 1147,
+                                  "id": 1553,
                                   "nodeType": "Block",
-                                  "src": "12464:111:0",
+                                  "src": "12725:111:6",
                                   "statements": [
                                     {
                                       "eventCall": {
                                         "arguments": [
                                           {
-                                            "id": 1139,
+                                            "id": 1545,
                                             "name": "tokenType",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 962,
-                                            "src": "12506:9:0",
+                                            "referencedDeclaration": 1368,
+                                            "src": "12767:9:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_enum$_TokenType_$2176",
+                                              "typeIdentifier": "t_enum$_TokenType_$2607",
                                               "typeString": "enum TokenTracker.TokenType"
                                             }
                                           },
                                           {
-                                            "id": 1140,
+                                            "id": 1546,
                                             "name": "contractAddress",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 964,
-                                            "src": "12517:15:0",
+                                            "referencedDeclaration": 1370,
+                                            "src": "12778:15:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
                                               "typeString": "address"
                                             }
                                           },
                                           {
-                                            "id": 1141,
+                                            "id": 1547,
                                             "name": "tokenId",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 966,
-                                            "src": "12534:7:0",
+                                            "referencedDeclaration": 1372,
+                                            "src": "12795:7:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint256",
                                               "typeString": "uint256"
                                             }
                                           },
                                           {
-                                            "id": 1142,
+                                            "id": 1548,
                                             "name": "dest",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 968,
-                                            "src": "12543:4:0",
+                                            "referencedDeclaration": 1374,
+                                            "src": "12804:4:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
                                               "typeString": "address"
                                             }
                                           },
                                           {
-                                            "id": 1143,
+                                            "id": 1549,
                                             "name": "amount",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 970,
-                                            "src": "12549:6:0",
+                                            "referencedDeclaration": 1376,
+                                            "src": "12810:6:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint256",
                                               "typeString": "uint256"
@@ -38365,14 +40297,14 @@
                                           },
                                           {
                                             "hexValue": "",
-                                            "id": 1144,
+                                            "id": 1550,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": true,
                                             "kind": "string",
                                             "lValueRequested": false,
                                             "nodeType": "Literal",
-                                            "src": "12557:2:0",
+                                            "src": "12818:2:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
                                               "typeString": "literal_string \"\""
@@ -38383,7 +40315,7 @@
                                         "expression": {
                                           "argumentTypes": [
                                             {
-                                              "typeIdentifier": "t_enum$_TokenType_$2176",
+                                              "typeIdentifier": "t_enum$_TokenType_$2607",
                                               "typeString": "enum TokenTracker.TokenType"
                                             },
                                             {
@@ -38407,18 +40339,18 @@
                                               "typeString": "literal_string \"\""
                                             }
                                           ],
-                                          "id": 1138,
+                                          "id": 1544,
                                           "name": "TokenTransferError",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2248,
-                                          "src": "12487:18:0",
+                                          "referencedDeclaration": 2679,
+                                          "src": "12748:18:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                             "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                           }
                                         },
-                                        "id": 1145,
+                                        "id": 1551,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -38426,23 +40358,23 @@
                                         "lValueRequested": false,
                                         "names": [],
                                         "nodeType": "FunctionCall",
-                                        "src": "12487:73:0",
+                                        "src": "12748:73:6",
                                         "tryCall": false,
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_tuple$__$",
                                           "typeString": "tuple()"
                                         }
                                       },
-                                      "id": 1146,
+                                      "id": 1552,
                                       "nodeType": "EmitStatement",
-                                      "src": "12482:78:0"
+                                      "src": "12743:78:6"
                                     }
                                   ]
                                 },
                                 "errorName": "",
-                                "id": 1148,
+                                "id": 1554,
                                 "nodeType": "TryCatchClause",
-                                "src": "12458:117:0"
+                                "src": "12719:117:6"
                               }
                             ],
                             "externalCall": {
@@ -38450,14 +40382,14 @@
                                 {
                                   "arguments": [
                                     {
-                                      "id": 1107,
+                                      "id": 1513,
                                       "name": "this",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 4294967268,
-                                      "src": "12161:4:0",
+                                      "src": "12422:4:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                        "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                         "typeString": "contract ONEWallet"
                                       }
                                     }
@@ -38465,30 +40397,30 @@
                                   "expression": {
                                     "argumentTypes": [
                                       {
-                                        "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                        "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                         "typeString": "contract ONEWallet"
                                       }
                                     ],
-                                    "id": 1106,
+                                    "id": 1512,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "12153:7:0",
+                                    "src": "12414:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_address_$",
                                       "typeString": "type(address)"
                                     },
                                     "typeName": {
-                                      "id": 1105,
+                                      "id": 1511,
                                       "name": "address",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "12153:7:0",
+                                      "src": "12414:7:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1108,
+                                  "id": 1514,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -38496,7 +40428,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "12153:13:0",
+                                  "src": "12414:13:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
@@ -38504,48 +40436,48 @@
                                   }
                                 },
                                 {
-                                  "id": 1109,
+                                  "id": 1515,
                                   "name": "dest",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 968,
-                                  "src": "12168:4:0",
+                                  "referencedDeclaration": 1374,
+                                  "src": "12429:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
                                   }
                                 },
                                 {
-                                  "id": 1110,
+                                  "id": 1516,
                                   "name": "tokenId",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 966,
-                                  "src": "12174:7:0",
+                                  "referencedDeclaration": 1372,
+                                  "src": "12435:7:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
                                 {
-                                  "id": 1111,
+                                  "id": 1517,
                                   "name": "amount",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 970,
-                                  "src": "12183:6:0",
+                                  "referencedDeclaration": 1376,
+                                  "src": "12444:6:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
                                 {
-                                  "id": 1112,
+                                  "id": 1518,
                                   "name": "data",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 972,
-                                  "src": "12191:4:0",
+                                  "referencedDeclaration": 1378,
+                                  "src": "12452:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes_memory_ptr",
                                     "typeString": "bytes memory"
@@ -38578,12 +40510,12 @@
                                 "expression": {
                                   "arguments": [
                                     {
-                                      "id": 1102,
+                                      "id": 1508,
                                       "name": "contractAddress",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 964,
-                                      "src": "12119:15:0",
+                                      "referencedDeclaration": 1370,
+                                      "src": "12380:15:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_address",
                                         "typeString": "address"
@@ -38597,18 +40529,18 @@
                                         "typeString": "address"
                                       }
                                     ],
-                                    "id": 1101,
+                                    "id": 1507,
                                     "name": "IERC1155",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3551,
-                                    "src": "12110:8:0",
+                                    "referencedDeclaration": 121,
+                                    "src": "12371:8:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_type$_t_contract$_IERC1155_$3551_$",
+                                      "typeIdentifier": "t_type$_t_contract$_IERC1155_$121_$",
                                       "typeString": "type(contract IERC1155)"
                                     }
                                   },
-                                  "id": 1103,
+                                  "id": 1509,
                                   "isConstant": false,
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                                   "isPure": false,
@@ -38616,28 +40548,28 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "12110:25:0",
+                                  "src": "12371:25:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_contract$_IERC1155_$3551",
+                                    "typeIdentifier": "t_contract$_IERC1155_$121",
                                     "typeString": "contract IERC1155"
                                   }
                                 },
-                                "id": 1104,
+                                "id": 1510,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "memberName": "safeTransferFrom",
                                 "nodeType": "MemberAccess",
-                                "referencedDeclaration": 3534,
-                                "src": "12110:42:0",
+                                "referencedDeclaration": 104,
+                                "src": "12371:42:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
                                   "typeString": "function (address,address,uint256,uint256,bytes memory) external"
                                 }
                               },
-                              "id": 1113,
+                              "id": 1519,
                               "isConstant": false,
                               "isLValue": false,
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@@ -38645,94 +40577,94 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "12110:86:0",
+                              "src": "12371:86:6",
                               "tryCall": true,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_tuple$__$",
                                 "typeString": "tuple()"
                               }
                             },
-                            "id": 1149,
+                            "id": 1555,
                             "nodeType": "TryStatement",
-                            "src": "12106:469:0"
+                            "src": "12367:469:6"
                           }
                         ]
                       }
                     },
-                    "id": 1152,
+                    "id": 1558,
                     "nodeType": "IfStatement",
-                    "src": "11532:1053:0",
+                    "src": "11793:1053:6",
                     "trueBody": {
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+                      "id": 1502,
                       "nodeType": "Block",
-                      "src": "11567:483:0",
+                      "src": "11828:483:6",
                       "statements": [
                         {
                           "clauses": [
                             {
                               "block": {
-                                "id": 1068,
+                                "id": 1474,
                                 "nodeType": "Block",
-                                "src": "11662:111:0",
+                                "src": "11923:111:6",
                                 "statements": [
                                   {
                                     "eventCall": {
                                       "arguments": [
                                         {
-                                          "id": 1061,
+                                          "id": 1467,
                                           "name": "tokenType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 962,
-                                          "src": "11708:9:0",
+                                          "referencedDeclaration": 1368,
+                                          "src": "11969:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         },
                                         {
-                                          "id": 1062,
+                                          "id": 1468,
                                           "name": "contractAddress",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 964,
-                                          "src": "11719:15:0",
+                                          "referencedDeclaration": 1370,
+                                          "src": "11980:15:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
                                           }
                                         },
                                         {
-                                          "id": 1063,
+                                          "id": 1469,
                                           "name": "tokenId",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 966,
-                                          "src": "11736:7:0",
+                                          "referencedDeclaration": 1372,
+                                          "src": "11997:7:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
                                           }
                                         },
                                         {
-                                          "id": 1064,
+                                          "id": 1470,
                                           "name": "dest",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 968,
-                                          "src": "11745:4:0",
+                                          "referencedDeclaration": 1374,
+                                          "src": "12006:4:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
                                           }
                                         },
                                         {
-                                          "id": 1065,
+                                          "id": 1471,
                                           "name": "amount",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 970,
-                                          "src": "11751:6:0",
+                                          "referencedDeclaration": 1376,
+                                          "src": "12012:6:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
@@ -38742,7 +40674,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           },
                                           {
@@ -38762,18 +40694,18 @@
                                             "typeString": "uint256"
                                           }
                                         ],
-                                        "id": 1060,
+                                        "id": 1466,
                                         "name": "TokenTransferSucceeded",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2261,
-                                        "src": "11685:22:0",
+                                        "referencedDeclaration": 2692,
+                                        "src": "11946:22:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                           "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                         }
                                       },
-                                      "id": 1066,
+                                      "id": 1472,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -38781,100 +40713,100 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "11685:73:0",
+                                      "src": "11946:73:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_tuple$__$",
                                         "typeString": "tuple()"
                                       }
                                     },
-                                    "id": 1067,
+                                    "id": 1473,
                                     "nodeType": "EmitStatement",
-                                    "src": "11680:78:0"
+                                    "src": "11941:78:6"
                                   }
                                 ]
                               },
                               "errorName": "",
-                              "id": 1069,
+                              "id": 1475,
                               "nodeType": "TryCatchClause",
-                              "src": "11662:111:0"
+                              "src": "11923:111:6"
                             },
                             {
                               "block": {
-                                "id": 1082,
+                                "id": 1488,
                                 "nodeType": "Block",
-                                "src": "11807:115:0",
+                                "src": "12068:115:6",
                                 "statements": [
                                   {
                                     "eventCall": {
                                       "arguments": [
                                         {
-                                          "id": 1074,
+                                          "id": 1480,
                                           "name": "tokenType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 962,
-                                          "src": "11849:9:0",
+                                          "referencedDeclaration": 1368,
+                                          "src": "12110:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         },
                                         {
-                                          "id": 1075,
+                                          "id": 1481,
                                           "name": "contractAddress",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 964,
-                                          "src": "11860:15:0",
+                                          "referencedDeclaration": 1370,
+                                          "src": "12121:15:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
                                           }
                                         },
                                         {
-                                          "id": 1076,
+                                          "id": 1482,
                                           "name": "tokenId",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 966,
-                                          "src": "11877:7:0",
+                                          "referencedDeclaration": 1372,
+                                          "src": "12138:7:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
                                           }
                                         },
                                         {
-                                          "id": 1077,
+                                          "id": 1483,
                                           "name": "dest",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 968,
-                                          "src": "11886:4:0",
+                                          "referencedDeclaration": 1374,
+                                          "src": "12147:4:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
                                           }
                                         },
                                         {
-                                          "id": 1078,
+                                          "id": 1484,
                                           "name": "amount",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 970,
-                                          "src": "11892:6:0",
+                                          "referencedDeclaration": 1376,
+                                          "src": "12153:6:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
                                           }
                                         },
                                         {
-                                          "id": 1079,
+                                          "id": 1485,
                                           "name": "reason",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 1071,
-                                          "src": "11900:6:0",
+                                          "referencedDeclaration": 1477,
+                                          "src": "12161:6:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_string_memory_ptr",
                                             "typeString": "string memory"
@@ -38884,7 +40816,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           },
                                           {
@@ -38908,18 +40840,18 @@
                                             "typeString": "string memory"
                                           }
                                         ],
-                                        "id": 1073,
+                                        "id": 1479,
                                         "name": "TokenTransferError",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2248,
-                                        "src": "11830:18:0",
+                                        "referencedDeclaration": 2679,
+                                        "src": "12091:18:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                           "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                         }
                                       },
-                                      "id": 1080,
+                                      "id": 1486,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -38927,35 +40859,35 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "11830:77:0",
+                                      "src": "12091:77:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_tuple$__$",
                                         "typeString": "tuple()"
                                       }
                                     },
-                                    "id": 1081,
+                                    "id": 1487,
                                     "nodeType": "EmitStatement",
-                                    "src": "11825:82:0"
+                                    "src": "12086:82:6"
                                   }
                                 ]
                               },
                               "errorName": "Error",
-                              "id": 1083,
+                              "id": 1489,
                               "nodeType": "TryCatchClause",
                               "parameters": {
-                                "id": 1072,
+                                "id": 1478,
                                 "nodeType": "ParameterList",
                                 "parameters": [
                                   {
                                     "constant": false,
-                                    "id": 1071,
+                                    "id": 1477,
                                     "mutability": "mutable",
                                     "name": "reason",
-                                    "nameLocation": "11800:6:0",
+                                    "nameLocation": "12061:6:6",
                                     "nodeType": "VariableDeclaration",
-                                    "scope": 1083,
-                                    "src": "11786:20:0",
+                                    "scope": 1489,
+                                    "src": "12047:20:6",
                                     "stateVariable": false,
                                     "storageLocation": "memory",
                                     "typeDescriptions": {
@@ -38963,10 +40895,10 @@
                                       "typeString": "string"
                                     },
                                     "typeName": {
-                                      "id": 1070,
+                                      "id": 1476,
                                       "name": "string",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "11786:6:0",
+                                      "src": "12047:6:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_string_storage_ptr",
                                         "typeString": "string"
@@ -38975,74 +40907,74 @@
                                     "visibility": "internal"
                                   }
                                 ],
-                                "src": "11785:22:0"
+                                "src": "12046:22:6"
                               },
-                              "src": "11774:148:0"
+                              "src": "12035:148:6"
                             },
                             {
                               "block": {
-                                "id": 1093,
+                                "id": 1499,
                                 "nodeType": "Block",
-                                "src": "11929:111:0",
+                                "src": "12190:111:6",
                                 "statements": [
                                   {
                                     "eventCall": {
                                       "arguments": [
                                         {
-                                          "id": 1085,
+                                          "id": 1491,
                                           "name": "tokenType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 962,
-                                          "src": "11971:9:0",
+                                          "referencedDeclaration": 1368,
+                                          "src": "12232:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         },
                                         {
-                                          "id": 1086,
+                                          "id": 1492,
                                           "name": "contractAddress",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 964,
-                                          "src": "11982:15:0",
+                                          "referencedDeclaration": 1370,
+                                          "src": "12243:15:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
                                           }
                                         },
                                         {
-                                          "id": 1087,
+                                          "id": 1493,
                                           "name": "tokenId",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 966,
-                                          "src": "11999:7:0",
+                                          "referencedDeclaration": 1372,
+                                          "src": "12260:7:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
                                           }
                                         },
                                         {
-                                          "id": 1088,
+                                          "id": 1494,
                                           "name": "dest",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 968,
-                                          "src": "12008:4:0",
+                                          "referencedDeclaration": 1374,
+                                          "src": "12269:4:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
                                           }
                                         },
                                         {
-                                          "id": 1089,
+                                          "id": 1495,
                                           "name": "amount",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 970,
-                                          "src": "12014:6:0",
+                                          "referencedDeclaration": 1376,
+                                          "src": "12275:6:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
@@ -39050,14 +40982,14 @@
                                         },
                                         {
                                           "hexValue": "",
-                                          "id": 1090,
+                                          "id": 1496,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "string",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "12022:2:0",
+                                          "src": "12283:2:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
                                             "typeString": "literal_string \"\""
@@ -39068,7 +41000,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           },
                                           {
@@ -39092,18 +41024,18 @@
                                             "typeString": "literal_string \"\""
                                           }
                                         ],
-                                        "id": 1084,
+                                        "id": 1490,
                                         "name": "TokenTransferError",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2248,
-                                        "src": "11952:18:0",
+                                        "referencedDeclaration": 2679,
+                                        "src": "12213:18:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                           "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                         }
                                       },
-                                      "id": 1091,
+                                      "id": 1497,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -39111,23 +41043,23 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "11952:73:0",
+                                      "src": "12213:73:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_tuple$__$",
                                         "typeString": "tuple()"
                                       }
                                     },
-                                    "id": 1092,
+                                    "id": 1498,
                                     "nodeType": "EmitStatement",
-                                    "src": "11947:78:0"
+                                    "src": "12208:78:6"
                                   }
                                 ]
                               },
                               "errorName": "",
-                              "id": 1094,
+                              "id": 1500,
                               "nodeType": "TryCatchClause",
-                              "src": "11923:117:0"
+                              "src": "12184:117:6"
                             }
                           ],
                           "externalCall": {
@@ -39135,14 +41067,14 @@
                               {
                                 "arguments": [
                                   {
-                                    "id": 1054,
+                                    "id": 1460,
                                     "name": "this",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 4294967268,
-                                    "src": "11635:4:0",
+                                    "src": "11896:4:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                       "typeString": "contract ONEWallet"
                                     }
                                   }
@@ -39150,30 +41082,30 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                       "typeString": "contract ONEWallet"
                                     }
                                   ],
-                                  "id": 1053,
+                                  "id": 1459,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "11627:7:0",
+                                  "src": "11888:7:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_address_$",
                                     "typeString": "type(address)"
                                   },
                                   "typeName": {
-                                    "id": 1052,
+                                    "id": 1458,
                                     "name": "address",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "11627:7:0",
+                                    "src": "11888:7:6",
                                     "typeDescriptions": {}
                                   }
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@@ -39181,7 +41113,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "11627:13:0",
+                                "src": "11888:13:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_address",
@@ -39189,36 +41121,36 @@
                                 }
                               },
                               {
-                                "id": 1056,
+                                "id": 1462,
                                 "name": "dest",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 968,
-                                "src": "11642:4:0",
+                                "referencedDeclaration": 1374,
+                                "src": "11903:4:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_address",
                                   "typeString": "address"
                                 }
                               },
                               {
-                                "id": 1057,
+                                "id": 1463,
                                 "name": "tokenId",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 966,
-                                "src": "11648:7:0",
+                                "referencedDeclaration": 1372,
+                                "src": "11909:7:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
                                 }
                               },
                               {
-                                "id": 1058,
+                                "id": 1464,
                                 "name": "data",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 972,
-                                "src": "11657:4:0",
+                                "referencedDeclaration": 1378,
+                                "src": "11918:4:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes_memory_ptr",
                                   "typeString": "bytes memory"
@@ -39247,12 +41179,12 @@
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 1049,
+                                    "id": 1455,
                                     "name": "contractAddress",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 964,
-                                    "src": "11593:15:0",
+                                    "referencedDeclaration": 1370,
+                                    "src": "11854:15:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_address",
                                       "typeString": "address"
@@ -39266,18 +41198,18 @@
                                       "typeString": "address"
                                     }
                                   ],
-                                  "id": 1048,
+                                  "id": 1454,
                                   "name": "IERC721",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 3786,
-                                  "src": "11585:7:0",
+                                  "referencedDeclaration": 356,
+                                  "src": "11846:7:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_type$_t_contract$_IERC721_$3786_$",
+                                    "typeIdentifier": "t_type$_t_contract$_IERC721_$356_$",
                                     "typeString": "type(contract IERC721)"
                                   }
                                 },
-                                "id": 1050,
+                                "id": 1456,
                                 "isConstant": false,
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@@ -39285,28 +41217,28 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "11585:24:0",
+                                "src": "11846:24:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_contract$_IERC721_$3786",
+                                  "typeIdentifier": "t_contract$_IERC721_$356",
                                   "typeString": "contract IERC721"
                                 }
                               },
-                              "id": 1051,
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                               "isConstant": false,
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                               "isPure": false,
                               "lValueRequested": false,
                               "memberName": "safeTransferFrom",
                               "nodeType": "MemberAccess",
-                              "referencedDeclaration": 3785,
-                              "src": "11585:41:0",
+                              "referencedDeclaration": 355,
+                              "src": "11846:41:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
                                 "typeString": "function (address,address,uint256,bytes memory) external"
                               }
                             },
-                            "id": 1059,
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@@ -39314,91 +41246,91 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "11585:77:0",
+                            "src": "11846:77:6",
                             "tryCall": true,
                             "typeDescriptions": {
                               "typeIdentifier": "t_tuple$__$",
                               "typeString": "tuple()"
                             }
                           },
-                          "id": 1095,
+                          "id": 1501,
                           "nodeType": "TryStatement",
-                          "src": "11581:459:0"
+                          "src": "11842:459:6"
                         }
                       ]
                     }
                   },
-                  "id": 1153,
+                  "id": 1559,
                   "nodeType": "IfStatement",
-                  "src": "10773:1812:0",
+                  "src": "11034:1812:6",
                   "trueBody": {
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+                    "src": "11068:719:6",
                     "statements": [
                       {
                         "clauses": [
                           {
                             "block": {
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+                              "id": 1421,
                               "nodeType": "Block",
-                              "src": "10894:355:0",
+                              "src": "11155:355:6",
                               "statements": [
                                 {
                                   "condition": {
-                                    "id": 989,
+                                    "id": 1395,
                                     "name": "success",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 987,
-                                    "src": "10916:7:0",
+                                    "referencedDeclaration": 1393,
+                                    "src": "11177:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bool",
                                       "typeString": "bool"
                                     }
                                   },
-                                  "id": 1006,
+                                  "id": 1412,
                                   "nodeType": "IfStatement",
-                                  "src": "10912:230:0",
+                                  "src": "11173:230:6",
                                   "trueBody": {
-                                    "id": 1005,
+                                    "id": 1411,
                                     "nodeType": "Block",
-                                    "src": "10925:217:0",
+                                    "src": "11186:217:6",
                                     "statements": [
                                       {
                                         "expression": {
                                           "arguments": [
                                             {
-                                              "id": 991,
+                                              "id": 1397,
                                               "name": "tokenType",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 962,
-                                              "src": "10959:9:0",
+                                              "referencedDeclaration": 1368,
+                                              "src": "11220:9:6",
                                               "typeDescriptions": {
-                                                "typeIdentifier": "t_enum$_TokenType_$2176",
+                                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               }
                                             },
                                             {
-                                              "id": 992,
+                                              "id": 1398,
                                               "name": "contractAddress",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 964,
-                                              "src": "10970:15:0",
+                                              "referencedDeclaration": 1370,
+                                              "src": "11231:15:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_address",
                                                 "typeString": "address"
                                               }
                                             },
                                             {
-                                              "id": 993,
+                                              "id": 1399,
                                               "name": "tokenId",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 966,
-                                              "src": "10987:7:0",
+                                              "referencedDeclaration": 1372,
+                                              "src": "11248:7:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_uint256",
                                                 "typeString": "uint256"
@@ -39408,7 +41340,7 @@
                                           "expression": {
                                             "argumentTypes": [
                                               {
-                                                "typeIdentifier": "t_enum$_TokenType_$2176",
+                                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               },
                                               {
@@ -39420,18 +41352,18 @@
                                                 "typeString": "uint256"
                                               }
                                             ],
-                                            "id": 990,
+                                            "id": 1396,
                                             "name": "_trackToken",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 2658,
-                                            "src": "10947:11:0",
+                                            "referencedDeclaration": 3089,
+                                            "src": "11208:11:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$returns$__$",
+                                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                                               "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                                             }
                                           },
-                                          "id": 994,
+                                          "id": 1400,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": false,
@@ -39439,75 +41371,75 @@
                                           "lValueRequested": false,
                                           "names": [],
                                           "nodeType": "FunctionCall",
-                                          "src": "10947:48:0",
+                                          "src": "11208:48:6",
                                           "tryCall": false,
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_tuple$__$",
                                             "typeString": "tuple()"
                                           }
                                         },
-                                        "id": 995,
+                                        "id": 1401,
                                         "nodeType": "ExpressionStatement",
-                                        "src": "10947:48:0"
+                                        "src": "11208:48:6"
                                       },
                                       {
                                         "eventCall": {
                                           "arguments": [
                                             {
-                                              "id": 997,
+                                              "id": 1403,
                                               "name": "tokenType",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 962,
-                                              "src": "11045:9:0",
+                                              "referencedDeclaration": 1368,
+                                              "src": "11306:9:6",
                                               "typeDescriptions": {
-                                                "typeIdentifier": "t_enum$_TokenType_$2176",
+                                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               }
                                             },
                                             {
-                                              "id": 998,
+                                              "id": 1404,
                                               "name": "contractAddress",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 964,
-                                              "src": "11056:15:0",
+                                              "referencedDeclaration": 1370,
+                                              "src": "11317:15:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_address",
                                                 "typeString": "address"
                                               }
                                             },
                                             {
-                                              "id": 999,
+                                              "id": 1405,
                                               "name": "tokenId",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 966,
-                                              "src": "11073:7:0",
+                                              "referencedDeclaration": 1372,
+                                              "src": "11334:7:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_uint256",
                                                 "typeString": "uint256"
                                               }
                                             },
                                             {
-                                              "id": 1000,
+                                              "id": 1406,
                                               "name": "dest",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 968,
-                                              "src": "11082:4:0",
+                                              "referencedDeclaration": 1374,
+                                              "src": "11343:4:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_address",
                                                 "typeString": "address"
                                               }
                                             },
                                             {
-                                              "id": 1001,
+                                              "id": 1407,
                                               "name": "amount",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 970,
-                                              "src": "11088:6:0",
+                                              "referencedDeclaration": 1376,
+                                              "src": "11349:6:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_uint256",
                                                 "typeString": "uint256"
@@ -39517,7 +41449,7 @@
                                           "expression": {
                                             "argumentTypes": [
                                               {
-                                                "typeIdentifier": "t_enum$_TokenType_$2176",
+                                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               },
                                               {
@@ -39537,18 +41469,18 @@
                                                 "typeString": "uint256"
                                               }
                                             ],
-                                            "id": 996,
+                                            "id": 1402,
                                             "name": "TokenTransferSucceeded",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 2261,
-                                            "src": "11022:22:0",
+                                            "referencedDeclaration": 2692,
+                                            "src": "11283:22:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                              "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                               "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                             }
                                           },
-                                          "id": 1002,
+                                          "id": 1408,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": false,
@@ -39556,22 +41488,22 @@
                                           "lValueRequested": false,
                                           "names": [],
                                           "nodeType": "FunctionCall",
-                                          "src": "11022:73:0",
+                                          "src": "11283:73:6",
                                           "tryCall": false,
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_tuple$__$",
                                             "typeString": "tuple()"
                                           }
                                         },
-                                        "id": 1003,
+                                        "id": 1409,
                                         "nodeType": "EmitStatement",
-                                        "src": "11017:78:0"
+                                        "src": "11278:78:6"
                                       },
                                       {
-                                        "functionReturnParameters": 974,
-                                        "id": 1004,
+                                        "functionReturnParameters": 1380,
+                                        "id": 1410,
                                         "nodeType": "Return",
-                                        "src": "11117:7:0"
+                                        "src": "11378:7:6"
                                       }
                                     ]
                                   }
@@ -39580,60 +41512,60 @@
                                   "eventCall": {
                                     "arguments": [
                                       {
-                                        "id": 1008,
+                                        "id": 1414,
                                         "name": "tokenType",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 962,
-                                        "src": "11184:9:0",
+                                        "referencedDeclaration": 1368,
+                                        "src": "11445:9:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                                          "typeIdentifier": "t_enum$_TokenType_$2607",
                                           "typeString": "enum TokenTracker.TokenType"
                                         }
                                       },
                                       {
-                                        "id": 1009,
+                                        "id": 1415,
                                         "name": "contractAddress",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 964,
-                                        "src": "11195:15:0",
+                                        "referencedDeclaration": 1370,
+                                        "src": "11456:15:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_address",
                                           "typeString": "address"
                                         }
                                       },
                                       {
-                                        "id": 1010,
+                                        "id": 1416,
                                         "name": "tokenId",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 966,
-                                        "src": "11212:7:0",
+                                        "referencedDeclaration": 1372,
+                                        "src": "11473:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
                                         }
                                       },
                                       {
-                                        "id": 1011,
+                                        "id": 1417,
                                         "name": "dest",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 968,
-                                        "src": "11221:4:0",
+                                        "referencedDeclaration": 1374,
+                                        "src": "11482:4:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_address",
                                           "typeString": "address"
                                         }
                                       },
                                       {
-                                        "id": 1012,
+                                        "id": 1418,
                                         "name": "amount",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 970,
-                                        "src": "11227:6:0",
+                                        "referencedDeclaration": 1376,
+                                        "src": "11488:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
@@ -39643,7 +41575,7 @@
                                     "expression": {
                                       "argumentTypes": [
                                         {
-                                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                                          "typeIdentifier": "t_enum$_TokenType_$2607",
                                           "typeString": "enum TokenTracker.TokenType"
                                         },
                                         {
@@ -39663,18 +41595,18 @@
                                           "typeString": "uint256"
                                         }
                                       ],
-                                      "id": 1007,
+                                      "id": 1413,
                                       "name": "TokenTransferFailed",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2233,
-                                      "src": "11164:19:0",
+                                      "referencedDeclaration": 2664,
+                                      "src": "11425:19:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                         "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                       }
                                     },
-                                    "id": 1013,
+                                    "id": 1419,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -39682,35 +41614,35 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "11164:70:0",
+                                    "src": "11425:70:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_tuple$__$",
                                       "typeString": "tuple()"
                                     }
                                   },
-                                  "id": 1014,
+                                  "id": 1420,
                                   "nodeType": "EmitStatement",
-                                  "src": "11159:75:0"
+                                  "src": "11420:75:6"
                                 }
                               ]
                             },
                             "errorName": "",
-                            "id": 1016,
+                            "id": 1422,
                             "nodeType": "TryCatchClause",
                             "parameters": {
-                              "id": 988,
+                              "id": 1394,
                               "nodeType": "ParameterList",
                               "parameters": [
                                 {
                                   "constant": false,
-                                  "id": 987,
+                                  "id": 1393,
                                   "mutability": "mutable",
                                   "name": "success",
-                                  "nameLocation": "10886:7:0",
+                                  "nameLocation": "11147:7:6",
                                   "nodeType": "VariableDeclaration",
-                                  "scope": 1016,
-                                  "src": "10881:12:0",
+                                  "scope": 1422,
+                                  "src": "11142:12:6",
                                   "stateVariable": false,
                                   "storageLocation": "default",
                                   "typeDescriptions": {
@@ -39718,10 +41650,10 @@
                                     "typeString": "bool"
                                   },
                                   "typeName": {
-                                    "id": 986,
+                                    "id": 1392,
                                     "name": "bool",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "10881:4:0",
+                                    "src": "11142:4:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bool",
                                       "typeString": "bool"
@@ -39730,86 +41662,86 @@
                                   "visibility": "internal"
                                 }
                               ],
-                              "src": "10880:14:0"
+                              "src": "11141:14:6"
                             },
-                            "src": "10872:377:0"
+                            "src": "11133:377:6"
                           },
                           {
                             "block": {
-                              "id": 1029,
+                              "id": 1435,
                               "nodeType": "Block",
-                              "src": "11283:115:0",
+                              "src": "11544:115:6",
                               "statements": [
                                 {
                                   "eventCall": {
                                     "arguments": [
                                       {
-                                        "id": 1021,
+                                        "id": 1427,
                                         "name": "tokenType",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 962,
-                                        "src": "11325:9:0",
+                                        "referencedDeclaration": 1368,
+                                        "src": "11586:9:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                                          "typeIdentifier": "t_enum$_TokenType_$2607",
                                           "typeString": "enum TokenTracker.TokenType"
                                         }
                                       },
                                       {
-                                        "id": 1022,
+                                        "id": 1428,
                                         "name": "contractAddress",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 964,
-                                        "src": "11336:15:0",
+                                        "referencedDeclaration": 1370,
+                                        "src": "11597:15:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_address",
                                           "typeString": "address"
                                         }
                                       },
                                       {
-                                        "id": 1023,
+                                        "id": 1429,
                                         "name": "tokenId",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 966,
-                                        "src": "11353:7:0",
+                                        "referencedDeclaration": 1372,
+                                        "src": "11614:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
                                         }
                                       },
                                       {
-                                        "id": 1024,
+                                        "id": 1430,
                                         "name": "dest",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 968,
-                                        "src": "11362:4:0",
+                                        "referencedDeclaration": 1374,
+                                        "src": "11623:4:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_address",
                                           "typeString": "address"
                                         }
                                       },
                                       {
-                                        "id": 1025,
+                                        "id": 1431,
                                         "name": "amount",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 970,
-                                        "src": "11368:6:0",
+                                        "referencedDeclaration": 1376,
+                                        "src": "11629:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
                                         }
                                       },
                                       {
-                                        "id": 1026,
+                                        "id": 1432,
                                         "name": "reason",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 1018,
-                                        "src": "11376:6:0",
+                                        "referencedDeclaration": 1424,
+                                        "src": "11637:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_string_memory_ptr",
                                           "typeString": "string memory"
@@ -39819,7 +41751,7 @@
                                     "expression": {
                                       "argumentTypes": [
                                         {
-                                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                                          "typeIdentifier": "t_enum$_TokenType_$2607",
                                           "typeString": "enum TokenTracker.TokenType"
                                         },
                                         {
@@ -39843,18 +41775,18 @@
                                           "typeString": "string memory"
                                         }
                                       ],
-                                      "id": 1020,
+                                      "id": 1426,
                                       "name": "TokenTransferError",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2248,
-                                      "src": "11306:18:0",
+                                      "referencedDeclaration": 2679,
+                                      "src": "11567:18:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                         "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                       }
                                     },
-                                    "id": 1027,
+                                    "id": 1433,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -39862,35 +41794,35 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "11306:77:0",
+                                    "src": "11567:77:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_tuple$__$",
                                       "typeString": "tuple()"
                                     }
                                   },
-                                  "id": 1028,
+                                  "id": 1434,
                                   "nodeType": "EmitStatement",
-                                  "src": "11301:82:0"
+                                  "src": "11562:82:6"
                                 }
                               ]
                             },
                             "errorName": "Error",
-                            "id": 1030,
+                            "id": 1436,
                             "nodeType": "TryCatchClause",
                             "parameters": {
-                              "id": 1019,
+                              "id": 1425,
                               "nodeType": "ParameterList",
                               "parameters": [
                                 {
                                   "constant": false,
-                                  "id": 1018,
+                                  "id": 1424,
                                   "mutability": "mutable",
                                   "name": "reason",
-                                  "nameLocation": "11276:6:0",
+                                  "nameLocation": "11537:6:6",
                                   "nodeType": "VariableDeclaration",
-                                  "scope": 1030,
-                                  "src": "11262:20:0",
+                                  "scope": 1436,
+                                  "src": "11523:20:6",
                                   "stateVariable": false,
                                   "storageLocation": "memory",
                                   "typeDescriptions": {
@@ -39898,10 +41830,10 @@
                                     "typeString": "string"
                                   },
                                   "typeName": {
-                                    "id": 1017,
+                                    "id": 1423,
                                     "name": "string",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "11262:6:0",
+                                    "src": "11523:6:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_string_storage_ptr",
                                       "typeString": "string"
@@ -39910,74 +41842,74 @@
                                   "visibility": "internal"
                                 }
                               ],
-                              "src": "11261:22:0"
+                              "src": "11522:22:6"
                             },
-                            "src": "11250:148:0"
+                            "src": "11511:148:6"
                           },
                           {
                             "block": {
-                              "id": 1040,
+                              "id": 1446,
                               "nodeType": "Block",
-                              "src": "11405:111:0",
+                              "src": "11666:111:6",
                               "statements": [
                                 {
                                   "eventCall": {
                                     "arguments": [
                                       {
-                                        "id": 1032,
+                                        "id": 1438,
                                         "name": "tokenType",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 962,
-                                        "src": "11447:9:0",
+                                        "referencedDeclaration": 1368,
+                                        "src": "11708:9:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                                          "typeIdentifier": "t_enum$_TokenType_$2607",
                                           "typeString": "enum TokenTracker.TokenType"
                                         }
                                       },
                                       {
-                                        "id": 1033,
+                                        "id": 1439,
                                         "name": "contractAddress",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 964,
-                                        "src": "11458:15:0",
+                                        "referencedDeclaration": 1370,
+                                        "src": "11719:15:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_address",
                                           "typeString": "address"
                                         }
                                       },
                                       {
-                                        "id": 1034,
+                                        "id": 1440,
                                         "name": "tokenId",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 966,
-                                        "src": "11475:7:0",
+                                        "referencedDeclaration": 1372,
+                                        "src": "11736:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
                                         }
                                       },
                                       {
-                                        "id": 1035,
+                                        "id": 1441,
                                         "name": "dest",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 968,
-                                        "src": "11484:4:0",
+                                        "referencedDeclaration": 1374,
+                                        "src": "11745:4:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_address",
                                           "typeString": "address"
                                         }
                                       },
                                       {
-                                        "id": 1036,
+                                        "id": 1442,
                                         "name": "amount",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 970,
-                                        "src": "11490:6:0",
+                                        "referencedDeclaration": 1376,
+                                        "src": "11751:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
@@ -39985,14 +41917,14 @@
                                       },
                                       {
                                         "hexValue": "",
-                                        "id": 1037,
+                                        "id": 1443,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "kind": "string",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "11498:2:0",
+                                        "src": "11759:2:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
                                           "typeString": "literal_string \"\""
@@ -40003,7 +41935,7 @@
                                     "expression": {
                                       "argumentTypes": [
                                         {
-                                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                                          "typeIdentifier": "t_enum$_TokenType_$2607",
                                           "typeString": "enum TokenTracker.TokenType"
                                         },
                                         {
@@ -40027,18 +41959,18 @@
                                           "typeString": "literal_string \"\""
                                         }
                                       ],
-                                      "id": 1031,
+                                      "id": 1437,
                                       "name": "TokenTransferError",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2248,
-                                      "src": "11428:18:0",
+                                      "referencedDeclaration": 2679,
+                                      "src": "11689:18:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                         "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                       }
                                     },
-                                    "id": 1038,
+                                    "id": 1444,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -40046,46 +41978,46 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "11428:73:0",
+                                    "src": "11689:73:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_tuple$__$",
                                       "typeString": "tuple()"
                                     }
                                   },
-                                  "id": 1039,
+                                  "id": 1445,
                                   "nodeType": "EmitStatement",
-                                  "src": "11423:78:0"
+                                  "src": "11684:78:6"
                                 }
                               ]
                             },
                             "errorName": "",
-                            "id": 1041,
+                            "id": 1447,
                             "nodeType": "TryCatchClause",
-                            "src": "11399:117:0"
+                            "src": "11660:117:6"
                           }
                         ],
                         "externalCall": {
                           "arguments": [
                             {
-                              "id": 983,
+                              "id": 1389,
                               "name": "dest",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 968,
-                              "src": "10858:4:0",
+                              "referencedDeclaration": 1374,
+                              "src": "11119:4:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
                                 "typeString": "address"
                               }
                             },
                             {
-                              "id": 984,
+                              "id": 1390,
                               "name": "amount",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 970,
-                              "src": "10864:6:0",
+                              "referencedDeclaration": 1376,
+                              "src": "11125:6:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -40106,12 +42038,12 @@
                             "expression": {
                               "arguments": [
                                 {
-                                  "id": 980,
+                                  "id": 1386,
                                   "name": "contractAddress",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 964,
-                                  "src": "10832:15:0",
+                                  "referencedDeclaration": 1370,
+                                  "src": "11093:15:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
@@ -40125,18 +42057,18 @@
                                     "typeString": "address"
                                   }
                                 ],
-                                "id": 979,
+                                "id": 1385,
                                 "name": "IERC20",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3670,
-                                "src": "10825:6:0",
+                                "referencedDeclaration": 240,
+                                "src": "11086:6:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_type$_t_contract$_IERC20_$3670_$",
+                                  "typeIdentifier": "t_type$_t_contract$_IERC20_$240_$",
                                   "typeString": "type(contract IERC20)"
                                 }
                               },
-                              "id": 981,
+                              "id": 1387,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -40144,28 +42076,28 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "10825:23:0",
+                              "src": "11086:23:6",
                               "tryCall": false,
                               "typeDescriptions": {
-                                "typeIdentifier": "t_contract$_IERC20_$3670",
+                                "typeIdentifier": "t_contract$_IERC20_$240",
                                 "typeString": "contract IERC20"
                               }
                             },
-                            "id": 982,
+                            "id": 1388,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "transfer",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 3619,
-                            "src": "10825:32:0",
+                            "referencedDeclaration": 189,
+                            "src": "11086:32:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$_t_bool_$",
                               "typeString": "function (address,uint256) external returns (bool)"
                             }
                           },
-                          "id": 985,
+                          "id": 1391,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -40173,62 +42105,62 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "10825:46:0",
+                          "src": "11086:46:6",
                           "tryCall": true,
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "id": 1042,
+                        "id": 1448,
                         "nodeType": "TryStatement",
-                        "src": "10821:695:0"
+                        "src": "11082:695:6"
                       }
                     ]
                   }
                 }
               ]
             },
-            "id": 1155,
+            "id": 1561,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_transferToken",
-            "nameLocation": "10627:14:0",
+            "nameLocation": "10888:14:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 973,
+              "id": 1379,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 962,
+                  "id": 1368,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "10652:9:0",
+                  "nameLocation": "10913:9:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1155,
-                  "src": "10642:19:0",
+                  "scope": 1561,
+                  "src": "10903:19:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2176",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 961,
+                    "id": 1367,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 960,
+                      "id": 1366,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2176,
-                      "src": "10642:9:0"
+                      "referencedDeclaration": 2607,
+                      "src": "10903:9:6"
                     },
-                    "referencedDeclaration": 2176,
-                    "src": "10642:9:0",
+                    "referencedDeclaration": 2607,
+                    "src": "10903:9:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2176",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -40236,13 +42168,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 964,
+                  "id": 1370,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "10671:15:0",
+                  "nameLocation": "10932:15:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1155,
-                  "src": "10663:23:0",
+                  "scope": 1561,
+                  "src": "10924:23:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -40250,10 +42182,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 963,
+                    "id": 1369,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10663:7:0",
+                    "src": "10924:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -40264,13 +42196,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 966,
+                  "id": 1372,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "10696:7:0",
+                  "nameLocation": "10957:7:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1155,
-                  "src": "10688:15:0",
+                  "scope": 1561,
+                  "src": "10949:15:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -40278,10 +42210,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 965,
+                    "id": 1371,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10688:7:0",
+                    "src": "10949:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -40291,13 +42223,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 968,
+                  "id": 1374,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "10713:4:0",
+                  "nameLocation": "10974:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1155,
-                  "src": "10705:12:0",
+                  "scope": 1561,
+                  "src": "10966:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -40305,10 +42237,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 967,
+                    "id": 1373,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10705:7:0",
+                    "src": "10966:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -40319,13 +42251,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 970,
+                  "id": 1376,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "10727:6:0",
+                  "nameLocation": "10988:6:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1155,
-                  "src": "10719:14:0",
+                  "scope": 1561,
+                  "src": "10980:14:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -40333,10 +42265,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 969,
+                    "id": 1375,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10719:7:0",
+                    "src": "10980:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -40346,13 +42278,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 972,
+                  "id": 1378,
                   "mutability": "mutable",
                   "name": "data",
-                  "nameLocation": "10748:4:0",
+                  "nameLocation": "11009:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1155,
-                  "src": "10735:17:0",
+                  "scope": 1561,
+                  "src": "10996:17:6",
                   "stateVariable": false,
                   "storageLocation": "memory",
                   "typeDescriptions": {
@@ -40360,10 +42292,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 971,
+                    "id": 1377,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10735:5:0",
+                    "src": "10996:5:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -40372,40 +42304,40 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "10641:112:0"
+              "src": "10902:112:6"
             },
             "returnParameters": {
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+              "id": 1380,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "10763:0:0"
+              "src": "11024:0:6"
             },
-            "scope": 2161,
-            "src": "10618:1973:0",
+            "scope": 2592,
+            "src": "10879:1973:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 1336,
+              "id": 1741,
               "nodeType": "Block",
-              "src": "12951:1011:0",
+              "src": "13212:1016:6",
               "statements": [
                 {
                   "assignments": [
-                    1186
+                    1592
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 1186,
+                      "id": 1592,
                       "mutability": "mutable",
                       "name": "hash",
-                      "nameLocation": "12969:4:0",
+                      "nameLocation": "13230:4:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1336,
-                      "src": "12961:12:0",
+                      "scope": 1741,
+                      "src": "13222:12:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -40413,10 +42345,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 1185,
+                        "id": 1591,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "12961:7:0",
+                        "src": "13222:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -40425,18 +42357,18 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 1202,
+                  "id": 1608,
                   "initialValue": {
                     "arguments": [
                       {
                         "arguments": [
                           {
-                            "id": 1191,
+                            "id": 1597,
                             "name": "neighbor",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1158,
-                            "src": "12999:8:0",
+                            "referencedDeclaration": 1564,
+                            "src": "13260:8:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
@@ -40447,12 +42379,12 @@
                               {
                                 "arguments": [
                                   {
-                                    "id": 1196,
+                                    "id": 1602,
                                     "name": "indexWithNonce",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1160,
-                                    "src": "13024:14:0",
+                                    "referencedDeclaration": 1566,
+                                    "src": "13285:14:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
@@ -40466,26 +42398,26 @@
                                       "typeString": "uint32"
                                     }
                                   ],
-                                  "id": 1195,
+                                  "id": 1601,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "13017:6:0",
+                                  "src": "13278:6:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes4_$",
                                     "typeString": "type(bytes4)"
                                   },
                                   "typeName": {
-                                    "id": 1194,
+                                    "id": 1600,
                                     "name": "bytes4",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "13017:6:0",
+                                    "src": "13278:6:6",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 1197,
+                                "id": 1603,
                                 "isConstant": false,
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                                 "isPure": false,
@@ -40493,7 +42425,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "13017:22:0",
+                                "src": "13278:22:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes4",
@@ -40508,26 +42440,26 @@
                                   "typeString": "bytes4"
                                 }
                               ],
-                              "id": 1193,
+                              "id": 1599,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "13009:7:0",
+                              "src": "13270:7:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 1192,
+                                "id": 1598,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "13009:7:0",
+                                "src": "13270:7:6",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 1198,
+                            "id": 1604,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -40535,7 +42467,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "13009:31:0",
+                            "src": "13270:31:6",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -40543,12 +42475,12 @@
                             }
                           },
                           {
-                            "id": 1199,
+                            "id": 1605,
                             "name": "eotp",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1162,
-                            "src": "13042:4:0",
+                            "referencedDeclaration": 1568,
+                            "src": "13303:4:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
@@ -40571,39 +42503,39 @@
                             }
                           ],
                           "expression": {
-                            "id": 1189,
+                            "id": 1595,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "12986:5:0",
+                            "src": "13247:5:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                               "typeString": "type(bytes storage pointer)"
                             },
                             "typeName": {
-                              "id": 1188,
+                              "id": 1594,
                               "name": "bytes",
                               "nodeType": "ElementaryTypeName",
-                              "src": "12986:5:0",
+                              "src": "13247:5:6",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 1190,
+                          "id": 1596,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "concat",
                           "nodeType": "MemberAccess",
-                          "src": "12986:12:0",
+                          "src": "13247:12:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                             "typeString": "function () pure returns (bytes memory)"
                           }
                         },
-                        "id": 1200,
+                        "id": 1606,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -40611,7 +42543,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "12986:61:0",
+                        "src": "13247:61:6",
                         "tryCall": false,
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_memory_ptr",
@@ -40626,18 +42558,18 @@
                           "typeString": "bytes memory"
                         }
                       ],
-                      "id": 1187,
+                      "id": 1593,
                       "name": "keccak256",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 4294967288,
-                      "src": "12976:9:0",
+                      "src": "13237:9:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                         "typeString": "function (bytes memory) pure returns (bytes32)"
                       }
                     },
-                    "id": 1201,
+                    "id": 1607,
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                     "isPure": false,
@@ -40645,7 +42577,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "12976:72:0",
+                    "src": "13237:72:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
@@ -40653,22 +42585,22 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "12961:87:0"
+                  "src": "13222:87:6"
                 },
                 {
                   "assignments": [
-                    1204
+                    1610
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 1204,
+                      "id": 1610,
                       "mutability": "mutable",
                       "name": "paramsHash",
-                      "nameLocation": "13066:10:0",
+                      "nameLocation": "13327:10:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1336,
-                      "src": "13058:18:0",
+                      "scope": 1741,
+                      "src": "13319:18:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -40676,10 +42608,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 1203,
+                        "id": 1609,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "13058:7:0",
+                        "src": "13319:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -40688,19 +42620,19 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 1209,
+                  "id": 1615,
                   "initialValue": {
                     "arguments": [
                       {
                         "hexValue": "30",
-                        "id": 1207,
+                        "id": 1613,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "number",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "13087:1:0",
+                        "src": "13348:1:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_rational_0_by_1",
                           "typeString": "int_const 0"
@@ -40715,26 +42647,26 @@
                           "typeString": "int_const 0"
                         }
                       ],
-                      "id": 1206,
+                      "id": 1612,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "ElementaryTypeNameExpression",
-                      "src": "13079:7:0",
+                      "src": "13340:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_type$_t_bytes32_$",
                         "typeString": "type(bytes32)"
                       },
                       "typeName": {
-                        "id": 1205,
+                        "id": 1611,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "13079:7:0",
+                        "src": "13340:7:6",
                         "typeDescriptions": {}
                       }
                     },
-                    "id": 1208,
+                    "id": 1614,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": true,
@@ -40742,7 +42674,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "13079:10:0",
+                    "src": "13340:10:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
@@ -40750,28 +42682,28 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "13058:31:0"
+                  "src": "13319:31:6"
                 },
                 {
                   "condition": {
                     "commonType": {
-                      "typeIdentifier": "t_enum$_OperationType_$103",
+                      "typeIdentifier": "t_enum$_OperationType_$493",
                       "typeString": "enum ONEWallet.OperationType"
                     },
-                    "id": 1213,
+                    "id": 1619,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 1210,
+                      "id": 1616,
                       "name": "operationType",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1165,
-                      "src": "13103:13:0",
+                      "referencedDeclaration": 1571,
+                      "src": "13364:13:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_OperationType_$103",
+                        "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       }
                     },
@@ -40779,32 +42711,32 @@
                     "operator": "==",
                     "rightExpression": {
                       "expression": {
-                        "id": 1211,
+                        "id": 1617,
                         "name": "OperationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 103,
-                        "src": "13120:13:0",
+                        "referencedDeclaration": 493,
+                        "src": "13381:13:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                          "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                           "typeString": "type(enum ONEWallet.OperationType)"
                         }
                       },
-                      "id": 1212,
+                      "id": 1618,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "memberName": "TRANSFER",
                       "nodeType": "MemberAccess",
-                      "referencedDeclaration": 100,
-                      "src": "13120:22:0",
+                      "referencedDeclaration": 489,
+                      "src": "13381:22:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_OperationType_$103",
+                        "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       }
                     },
-                    "src": "13103:39:0",
+                    "src": "13364:39:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -40813,23 +42745,23 @@
                   "falseBody": {
                     "condition": {
                       "commonType": {
-                        "typeIdentifier": "t_enum$_OperationType_$103",
+                        "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       },
-                      "id": 1241,
+                      "id": 1647,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "leftExpression": {
-                        "id": 1238,
+                        "id": 1644,
                         "name": "operationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1165,
-                        "src": "13265:13:0",
+                        "referencedDeclaration": 1571,
+                        "src": "13526:13:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         }
                       },
@@ -40837,32 +42769,32 @@
                       "operator": "==",
                       "rightExpression": {
                         "expression": {
-                          "id": 1239,
+                          "id": 1645,
                           "name": "OperationType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 103,
-                          "src": "13282:13:0",
+                          "referencedDeclaration": 493,
+                          "src": "13543:13:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                            "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                             "typeString": "type(enum ONEWallet.OperationType)"
                           }
                         },
-                        "id": 1240,
+                        "id": 1646,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "memberName": "RECOVER",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 102,
-                        "src": "13282:21:0",
+                        "referencedDeclaration": 491,
+                        "src": "13543:21:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         }
                       },
-                      "src": "13265:38:0",
+                      "src": "13526:38:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
@@ -40871,23 +42803,23 @@
                     "falseBody": {
                       "condition": {
                         "commonType": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         },
-                        "id": 1253,
+                        "id": 1658,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
-                          "id": 1250,
+                          "id": 1655,
                           "name": "operationType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1165,
-                          "src": "13363:13:0",
+                          "referencedDeclaration": 1571,
+                          "src": "13629:13:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_OperationType_$103",
+                            "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           }
                         },
@@ -40895,56 +42827,56 @@
                         "operator": "==",
                         "rightExpression": {
                           "expression": {
-                            "id": 1251,
+                            "id": 1656,
                             "name": "OperationType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 103,
-                            "src": "13380:13:0",
+                            "referencedDeclaration": 493,
+                            "src": "13646:13:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                              "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                               "typeString": "type(enum ONEWallet.OperationType)"
                             }
                           },
-                          "id": 1252,
+                          "id": 1657,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "lValueRequested": false,
                           "memberName": "SET_RECOVERY_ADDRESS",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 101,
-                          "src": "13380:34:0",
+                          "referencedDeclaration": 490,
+                          "src": "13646:34:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_OperationType_$103",
+                            "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           }
                         },
-                        "src": "13363:51:0",
+                        "src": "13629:51:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
                         }
                       },
                       "falseBody": {
-                        "id": 1328,
+                        "id": 1733,
                         "nodeType": "Block",
-                        "src": "13516:405:0",
+                        "src": "13782:405:6",
                         "statements": [
                           {
                             "assignments": [
-                              1275
+                              1680
                             ],
                             "declarations": [
                               {
                                 "constant": false,
-                                "id": 1275,
+                                "id": 1680,
                                 "mutability": "mutable",
                                 "name": "packed",
-                                "nameLocation": "13543:6:0",
+                                "nameLocation": "13809:6:6",
                                 "nodeType": "VariableDeclaration",
-                                "scope": 1328,
-                                "src": "13530:19:0",
+                                "scope": 1733,
+                                "src": "13796:19:6",
                                 "stateVariable": false,
                                 "storageLocation": "memory",
                                 "typeDescriptions": {
@@ -40952,10 +42884,10 @@
                                   "typeString": "bytes"
                                 },
                                 "typeName": {
-                                  "id": 1274,
+                                  "id": 1679,
                                   "name": "bytes",
                                   "nodeType": "ElementaryTypeName",
-                                  "src": "13530:5:0",
+                                  "src": "13796:5:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes_storage_ptr",
                                     "typeString": "bytes"
@@ -40964,7 +42896,7 @@
                                 "visibility": "internal"
                               }
                             ],
-                            "id": 1317,
+                            "id": 1722,
                             "initialValue": {
                               "arguments": [
                                 {
@@ -40972,14 +42904,14 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 1283,
+                                          "id": 1688,
                                           "name": "operationType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 1165,
-                                          "src": "13598:13:0",
+                                          "referencedDeclaration": 1571,
+                                          "src": "13864:13:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_OperationType_$103",
+                                            "typeIdentifier": "t_enum$_OperationType_$493",
                                             "typeString": "enum ONEWallet.OperationType"
                                           }
                                         }
@@ -40987,30 +42919,30 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_OperationType_$103",
+                                            "typeIdentifier": "t_enum$_OperationType_$493",
                                             "typeString": "enum ONEWallet.OperationType"
                                           }
                                         ],
-                                        "id": 1282,
+                                        "id": 1687,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "13590:7:0",
+                                        "src": "13856:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_uint256_$",
                                           "typeString": "type(uint256)"
                                         },
                                         "typeName": {
-                                          "id": 1281,
+                                          "id": 1686,
                                           "name": "uint256",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "13590:7:0",
+                                          "src": "13856:7:6",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 1284,
+                                      "id": 1689,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -41018,7 +42950,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "13590:22:0",
+                                      "src": "13856:22:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
@@ -41033,26 +42965,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1280,
+                                    "id": 1685,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13582:7:0",
+                                    "src": "13848:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 1279,
+                                      "id": 1684,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13582:7:0",
+                                      "src": "13848:7:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1285,
+                                  "id": 1690,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -41060,7 +42992,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "13582:31:0",
+                                  "src": "13848:31:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -41072,14 +43004,14 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 1290,
+                                          "id": 1695,
                                           "name": "tokenType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 1168,
-                                          "src": "13647:9:0",
+                                          "referencedDeclaration": 1574,
+                                          "src": "13913:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         }
@@ -41087,30 +43019,30 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         ],
-                                        "id": 1289,
+                                        "id": 1694,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "13639:7:0",
+                                        "src": "13905:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_uint256_$",
                                           "typeString": "type(uint256)"
                                         },
                                         "typeName": {
-                                          "id": 1288,
+                                          "id": 1693,
                                           "name": "uint256",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "13639:7:0",
+                                          "src": "13905:7:6",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 1291,
+                                      "id": 1696,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -41118,7 +43050,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "13639:18:0",
+                                      "src": "13905:18:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
@@ -41133,26 +43065,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1287,
+                                    "id": 1692,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13631:7:0",
+                                    "src": "13897:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 1286,
+                                      "id": 1691,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13631:7:0",
+                                      "src": "13897:7:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1292,
+                                  "id": 1697,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -41160,7 +43092,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "13631:27:0",
+                                  "src": "13897:27:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -41172,12 +43104,12 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 1297,
+                                          "id": 1702,
                                           "name": "contractAddress",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 1170,
-                                          "src": "13692:15:0",
+                                          "referencedDeclaration": 1576,
+                                          "src": "13958:15:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
@@ -41191,26 +43123,26 @@
                                             "typeString": "address"
                                           }
                                         ],
-                                        "id": 1296,
+                                        "id": 1701,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "13684:7:0",
+                                        "src": "13950:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes20_$",
                                           "typeString": "type(bytes20)"
                                         },
                                         "typeName": {
-                                          "id": 1295,
+                                          "id": 1700,
                                           "name": "bytes20",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "13684:7:0",
+                                          "src": "13950:7:6",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 1298,
+                                      "id": 1703,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -41218,7 +43150,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "13684:24:0",
+                                      "src": "13950:24:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes20",
@@ -41233,26 +43165,26 @@
                                         "typeString": "bytes20"
                                       }
                                     ],
-                                    "id": 1294,
+                                    "id": 1699,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13676:7:0",
+                                    "src": "13942:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 1293,
+                                      "id": 1698,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13676:7:0",
+                                      "src": "13942:7:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1299,
+                                  "id": 1704,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -41260,7 +43192,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "13676:33:0",
+                                  "src": "13942:33:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -41270,12 +43202,12 @@
                                 {
                                   "arguments": [
                                     {
-                                      "id": 1302,
+                                      "id": 1707,
                                       "name": "tokenId",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1172,
-                                      "src": "13735:7:0",
+                                      "referencedDeclaration": 1578,
+                                      "src": "14001:7:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -41289,26 +43221,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1301,
+                                    "id": 1706,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13727:7:0",
+                                    "src": "13993:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 1300,
+                                      "id": 1705,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13727:7:0",
+                                      "src": "13993:7:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1303,
+                                  "id": 1708,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -41316,7 +43248,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "13727:16:0",
+                                  "src": "13993:16:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -41328,12 +43260,12 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 1308,
+                                          "id": 1713,
                                           "name": "dest",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 1174,
-                                          "src": "13777:4:0",
+                                          "referencedDeclaration": 1580,
+                                          "src": "14043:4:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
@@ -41347,26 +43279,26 @@
                                             "typeString": "address"
                                           }
                                         ],
-                                        "id": 1307,
+                                        "id": 1712,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "13769:7:0",
+                                        "src": "14035:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes20_$",
                                           "typeString": "type(bytes20)"
                                         },
                                         "typeName": {
-                                          "id": 1306,
+                                          "id": 1711,
                                           "name": "bytes20",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "13769:7:0",
+                                          "src": "14035:7:6",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 1309,
+                                      "id": 1714,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -41374,7 +43306,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "13769:13:0",
+                                      "src": "14035:13:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes20",
@@ -41389,26 +43321,26 @@
                                         "typeString": "bytes20"
                                       }
                                     ],
-                                    "id": 1305,
+                                    "id": 1710,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13761:7:0",
+                                    "src": "14027:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 1304,
+                                      "id": 1709,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13761:7:0",
+                                      "src": "14027:7:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1310,
+                                  "id": 1715,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -41416,7 +43348,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "13761:22:0",
+                                  "src": "14027:22:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -41426,12 +43358,12 @@
                                 {
                                   "arguments": [
                                     {
-                                      "id": 1313,
+                                      "id": 1718,
                                       "name": "amount",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1176,
-                                      "src": "13809:6:0",
+                                      "referencedDeclaration": 1582,
+                                      "src": "14075:6:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -41445,26 +43377,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1312,
+                                    "id": 1717,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13801:7:0",
+                                    "src": "14067:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 1311,
+                                      "id": 1716,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13801:7:0",
+                                      "src": "14067:7:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1314,
+                                  "id": 1719,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -41472,7 +43404,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "13801:15:0",
+                                  "src": "14067:15:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -41480,12 +43412,12 @@
                                   }
                                 },
                                 {
-                                  "id": 1315,
+                                  "id": 1720,
                                   "name": "data",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1178,
-                                  "src": "13834:4:0",
+                                  "referencedDeclaration": 1584,
+                                  "src": "14100:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes_calldata_ptr",
                                     "typeString": "bytes calldata"
@@ -41524,39 +43456,39 @@
                                   }
                                 ],
                                 "expression": {
-                                  "id": 1277,
+                                  "id": 1682,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "13552:5:0",
+                                  "src": "13818:5:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                     "typeString": "type(bytes storage pointer)"
                                   },
                                   "typeName": {
-                                    "id": 1276,
+                                    "id": 1681,
                                     "name": "bytes",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "13552:5:0",
+                                    "src": "13818:5:6",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 1278,
+                                "id": 1683,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "memberName": "concat",
                                 "nodeType": "MemberAccess",
-                                "src": "13552:12:0",
+                                "src": "13818:12:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                   "typeString": "function () pure returns (bytes memory)"
                                 }
                               },
-                              "id": 1316,
+                              "id": 1721,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -41564,7 +43496,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "13552:300:0",
+                              "src": "13818:300:6",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_memory_ptr",
@@ -41572,22 +43504,22 @@
                               }
                             },
                             "nodeType": "VariableDeclarationStatement",
-                            "src": "13530:322:0"
+                            "src": "13796:322:6"
                           },
                           {
                             "expression": {
-                              "id": 1326,
+                              "id": 1731,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
                               "lValueRequested": false,
                               "leftHandSide": {
-                                "id": 1318,
+                                "id": 1723,
                                 "name": "paramsHash",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 1204,
-                                "src": "13866:10:0",
+                                "referencedDeclaration": 1610,
+                                "src": "14132:10:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -41600,12 +43532,12 @@
                                   {
                                     "arguments": [
                                       {
-                                        "id": 1323,
+                                        "id": 1728,
                                         "name": "packed",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 1275,
-                                        "src": "13902:6:0",
+                                        "referencedDeclaration": 1680,
+                                        "src": "14168:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes_memory_ptr",
                                           "typeString": "bytes memory"
@@ -41620,39 +43552,39 @@
                                         }
                                       ],
                                       "expression": {
-                                        "id": 1321,
+                                        "id": 1726,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "13889:5:0",
+                                        "src": "14155:5:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                           "typeString": "type(bytes storage pointer)"
                                         },
                                         "typeName": {
-                                          "id": 1320,
+                                          "id": 1725,
                                           "name": "bytes",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "13889:5:0",
+                                          "src": "14155:5:6",
                                           "typeDescriptions": {}
                                         }
                                       },
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+                                      "id": 1727,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "memberName": "concat",
                                       "nodeType": "MemberAccess",
-                                      "src": "13889:12:0",
+                                      "src": "14155:12:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                         "typeString": "function () pure returns (bytes memory)"
                                       }
                                     },
-                                    "id": 1324,
+                                    "id": 1729,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -41660,7 +43592,7 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "13889:20:0",
+                                    "src": "14155:20:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_memory_ptr",
@@ -41675,18 +43607,18 @@
                                       "typeString": "bytes memory"
                                     }
                                   ],
-                                  "id": 1319,
+                                  "id": 1724,
                                   "name": "keccak256",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 4294967288,
-                                  "src": "13879:9:0",
+                                  "src": "14145:9:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                     "typeString": "function (bytes memory) pure returns (bytes32)"
                                   }
                                 },
-                                "id": 1325,
+                                "id": 1730,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -41694,47 +43626,47 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "13879:31:0",
+                                "src": "14145:31:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
                                 }
                               },
-                              "src": "13866:44:0",
+                              "src": "14132:44:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
                               }
                             },
-                            "id": 1327,
+                            "id": 1732,
                             "nodeType": "ExpressionStatement",
-                            "src": "13866:44:0"
+                            "src": "14132:44:6"
                           }
                         ]
                       },
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+                      "id": 1734,
                       "nodeType": "IfStatement",
-                      "src": "13359:562:0",
+                      "src": "13625:562:6",
                       "trueBody": {
-                        "id": 1273,
+                        "id": 1678,
                         "nodeType": "Block",
-                        "src": "13416:94:0",
+                        "src": "13682:94:6",
                         "statements": [
                           {
                             "expression": {
-                              "id": 1271,
+                              "id": 1676,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
                               "lValueRequested": false,
                               "leftHandSide": {
-                                "id": 1254,
+                                "id": 1659,
                                 "name": "paramsHash",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 1204,
-                                "src": "13430:10:0",
+                                "referencedDeclaration": 1610,
+                                "src": "13696:10:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -41753,12 +43685,12 @@
                                               {
                                                 "arguments": [
                                                   {
-                                                    "id": 1265,
+                                                    "id": 1670,
                                                     "name": "dest",
                                                     "nodeType": "Identifier",
                                                     "overloadedDeclarations": [],
-                                                    "referencedDeclaration": 1174,
-                                                    "src": "13490:4:0",
+                                                    "referencedDeclaration": 1580,
+                                                    "src": "13756:4:6",
                                                     "typeDescriptions": {
                                                       "typeIdentifier": "t_address",
                                                       "typeString": "address"
@@ -41772,26 +43704,26 @@
                                                       "typeString": "address"
                                                     }
                                                   ],
-                                                  "id": 1264,
+                                                  "id": 1669,
                                                   "isConstant": false,
                                                   "isLValue": false,
                                                   "isPure": true,
                                                   "lValueRequested": false,
                                                   "nodeType": "ElementaryTypeNameExpression",
-                                                  "src": "13482:7:0",
+                                                  "src": "13748:7:6",
                                                   "typeDescriptions": {
                                                     "typeIdentifier": "t_type$_t_address_$",
                                                     "typeString": "type(address)"
                                                   },
                                                   "typeName": {
-                                                    "id": 1263,
+                                                    "id": 1668,
                                                     "name": "address",
                                                     "nodeType": "ElementaryTypeName",
-                                                    "src": "13482:7:0",
+                                                    "src": "13748:7:6",
                                                     "typeDescriptions": {}
                                                   }
                                                 },
-                                                "id": 1266,
+                                                "id": 1671,
                                                 "isConstant": false,
                                                 "isLValue": false,
                                                 "isPure": false,
@@ -41799,7 +43731,7 @@
                                                 "lValueRequested": false,
                                                 "names": [],
                                                 "nodeType": "FunctionCall",
-                                                "src": "13482:13:0",
+                                                "src": "13748:13:6",
                                                 "tryCall": false,
                                                 "typeDescriptions": {
                                                   "typeIdentifier": "t_address",
@@ -41814,26 +43746,26 @@
                                                   "typeString": "address"
                                                 }
                                               ],
-                                              "id": 1262,
+                                              "id": 1667,
                                               "isConstant": false,
                                               "isLValue": false,
                                               "isPure": true,
                                               "lValueRequested": false,
                                               "nodeType": "ElementaryTypeNameExpression",
-                                              "src": "13474:7:0",
+                                              "src": "13740:7:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_type$_t_bytes20_$",
                                                 "typeString": "type(bytes20)"
                                               },
                                               "typeName": {
-                                                "id": 1261,
+                                                "id": 1666,
                                                 "name": "bytes20",
                                                 "nodeType": "ElementaryTypeName",
-                                                "src": "13474:7:0",
+                                                "src": "13740:7:6",
                                                 "typeDescriptions": {}
                                               }
                                             },
-                                            "id": 1267,
+                                            "id": 1672,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": false,
@@ -41841,7 +43773,7 @@
                                             "lValueRequested": false,
                                             "names": [],
                                             "nodeType": "FunctionCall",
-                                            "src": "13474:22:0",
+                                            "src": "13740:22:6",
                                             "tryCall": false,
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_bytes20",
@@ -41856,26 +43788,26 @@
                                               "typeString": "bytes20"
                                             }
                                           ],
-                                          "id": 1260,
+                                          "id": 1665,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "lValueRequested": false,
                                           "nodeType": "ElementaryTypeNameExpression",
-                                          "src": "13466:7:0",
+                                          "src": "13732:7:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_type$_t_bytes32_$",
                                             "typeString": "type(bytes32)"
                                           },
                                           "typeName": {
-                                            "id": 1259,
+                                            "id": 1664,
                                             "name": "bytes32",
                                             "nodeType": "ElementaryTypeName",
-                                            "src": "13466:7:0",
+                                            "src": "13732:7:6",
                                             "typeDescriptions": {}
                                           }
                                         },
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+                                        "id": 1673,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -41883,7 +43815,7 @@
                                         "lValueRequested": false,
                                         "names": [],
                                         "nodeType": "FunctionCall",
-                                        "src": "13466:31:0",
+                                        "src": "13732:31:6",
                                         "tryCall": false,
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes32",
@@ -41899,39 +43831,39 @@
                                         }
                                       ],
                                       "expression": {
-                                        "id": 1257,
+                                        "id": 1662,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "13453:5:0",
+                                        "src": "13719:5:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                           "typeString": "type(bytes storage pointer)"
                                         },
                                         "typeName": {
-                                          "id": 1256,
+                                          "id": 1661,
                                           "name": "bytes",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "13453:5:0",
+                                          "src": "13719:5:6",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 1258,
+                                      "id": 1663,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "memberName": "concat",
                                       "nodeType": "MemberAccess",
-                                      "src": "13453:12:0",
+                                      "src": "13719:12:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                         "typeString": "function () pure returns (bytes memory)"
                                       }
                                     },
-                                    "id": 1269,
+                                    "id": 1674,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -41939,7 +43871,7 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "13453:45:0",
+                                    "src": "13719:45:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_memory_ptr",
@@ -41954,18 +43886,18 @@
                                       "typeString": "bytes memory"
                                     }
                                   ],
-                                  "id": 1255,
+                                  "id": 1660,
                                   "name": "keccak256",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 4294967288,
-                                  "src": "13443:9:0",
+                                  "src": "13709:9:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                     "typeString": "function (bytes memory) pure returns (bytes32)"
                                   }
                                 },
-                                "id": 1270,
+                                "id": 1675,
                                 "isConstant": false,
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                                 "isPure": false,
@@ -41973,48 +43905,48 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "13443:56:0",
+                                "src": "13709:56:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
                                 }
                               },
-                              "src": "13430:69:0",
+                              "src": "13696:69:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
                               }
                             },
-                            "id": 1272,
+                            "id": 1677,
                             "nodeType": "ExpressionStatement",
-                            "src": "13430:69:0"
+                            "src": "13696:69:6"
                           }
                         ]
                       }
                     },
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+                    "id": 1735,
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+                    "src": "13522:665:6",
                     "trueBody": {
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+                      "id": 1654,
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+                      "src": "13566:53:6",
                       "statements": [
                         {
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+                            "id": 1652,
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                             "lValueRequested": false,
                             "leftHandSide": {
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+                              "id": 1648,
                               "name": "paramsHash",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 1204,
-                              "src": "13319:10:0",
+                              "referencedDeclaration": 1610,
+                              "src": "13580:10:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -42025,98 +43957,86 @@
                             "rightHandSide": {
                               "arguments": [
                                 {
-                                  "hexValue": "30",
-                                  "id": 1245,
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-                                  "kind": "number",
-                                  "lValueRequested": false,
-                                  "nodeType": "Literal",
-                                  "src": "13340:1:0",
+                                  "id": 1650,
+                                  "name": "data",
+                                  "nodeType": "Identifier",
+                                  "overloadedDeclarations": [],
+                                  "referencedDeclaration": 1584,
+                                  "src": "13603:4:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_rational_0_by_1",
-                                    "typeString": "int_const 0"
-                                  },
-                                  "value": "0"
+                                    "typeIdentifier": "t_bytes_calldata_ptr",
+                                    "typeString": "bytes calldata"
+                                  }
                                 }
                               ],
                               "expression": {
                                 "argumentTypes": [
                                   {
-                                    "typeIdentifier": "t_rational_0_by_1",
-                                    "typeString": "int_const 0"
+                                    "typeIdentifier": "t_bytes_calldata_ptr",
+                                    "typeString": "bytes calldata"
                                   }
                                 ],
-                                "id": 1244,
-                                "isConstant": false,
-                                "isLValue": false,
-                                "isPure": true,
-                                "lValueRequested": false,
-                                "nodeType": "ElementaryTypeNameExpression",
-                                "src": "13332:7:0",
+                                "id": 1649,
+                                "name": "keccak256",
+                                "nodeType": "Identifier",
+                                "overloadedDeclarations": [],
+                                "referencedDeclaration": 4294967288,
+                                "src": "13593:9:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_type$_t_bytes32_$",
-                                  "typeString": "type(bytes32)"
-                                },
-                                "typeName": {
-                                  "id": 1243,
-                                  "name": "bytes32",
-                                  "nodeType": "ElementaryTypeName",
-                                  "src": "13332:7:0",
-                                  "typeDescriptions": {}
+                                  "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
+                                  "typeString": "function (bytes memory) pure returns (bytes32)"
                                 }
                               },
-                              "id": 1246,
+                              "id": 1651,
                               "isConstant": false,
                               "isLValue": false,
-                              "isPure": true,
-                              "kind": "typeConversion",
+                              "isPure": false,
+                              "kind": "functionCall",
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "13332:10:0",
+                              "src": "13593:15:6",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
                               }
                             },
-                            "src": "13319:23:0",
+                            "src": "13580:28:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
                             }
                           },
-                          "id": 1248,
+                          "id": 1653,
                           "nodeType": "ExpressionStatement",
-                          "src": "13319:23:0"
+                          "src": "13580:28:6"
                         }
                       ]
                     }
                   },
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+                  "id": 1736,
                   "nodeType": "IfStatement",
-                  "src": "13099:822:0",
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                   "trueBody": {
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+                    "id": 1643,
                     "nodeType": "Block",
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+                    "src": "13405:111:6",
                     "statements": [
                       {
                         "expression": {
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+                          "id": 1641,
                           "isConstant": false,
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                           "lValueRequested": false,
                           "leftHandSide": {
-                            "id": 1214,
+                            "id": 1620,
                             "name": "paramsHash",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1204,
-                            "src": "13158:10:0",
+                            "referencedDeclaration": 1610,
+                            "src": "13419:10:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
@@ -42135,12 +44055,12 @@
                                           {
                                             "arguments": [
                                               {
-                                                "id": 1225,
+                                                "id": 1631,
                                                 "name": "dest",
                                                 "nodeType": "Identifier",
                                                 "overloadedDeclarations": [],
-                                                "referencedDeclaration": 1174,
-                                                "src": "13218:4:0",
+                                                "referencedDeclaration": 1580,
+                                                "src": "13479:4:6",
                                                 "typeDescriptions": {
                                                   "typeIdentifier": "t_address",
                                                   "typeString": "address"
@@ -42154,26 +44074,26 @@
                                                   "typeString": "address"
                                                 }
                                               ],
-                                              "id": 1224,
+                                              "id": 1630,
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                                               "isPure": true,
                                               "lValueRequested": false,
                                               "nodeType": "ElementaryTypeNameExpression",
-                                              "src": "13210:7:0",
+                                              "src": "13471:7:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_type$_t_address_$",
                                                 "typeString": "type(address)"
                                               },
                                               "typeName": {
-                                                "id": 1223,
+                                                "id": 1629,
                                                 "name": "address",
                                                 "nodeType": "ElementaryTypeName",
-                                                "src": "13210:7:0",
+                                                "src": "13471:7:6",
                                                 "typeDescriptions": {}
                                               }
                                             },
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+                                            "id": 1632,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": false,
@@ -42181,7 +44101,7 @@
                                             "lValueRequested": false,
                                             "names": [],
                                             "nodeType": "FunctionCall",
-                                            "src": "13210:13:0",
+                                            "src": "13471:13:6",
                                             "tryCall": false,
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
@@ -42196,26 +44116,26 @@
                                               "typeString": "address"
                                             }
                                           ],
-                                          "id": 1222,
+                                          "id": 1628,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "lValueRequested": false,
                                           "nodeType": "ElementaryTypeNameExpression",
-                                          "src": "13202:7:0",
+                                          "src": "13463:7:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_type$_t_bytes20_$",
                                             "typeString": "type(bytes20)"
                                           },
                                           "typeName": {
-                                            "id": 1221,
+                                            "id": 1627,
                                             "name": "bytes20",
                                             "nodeType": "ElementaryTypeName",
-                                            "src": "13202:7:0",
+                                            "src": "13463:7:6",
                                             "typeDescriptions": {}
                                           }
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@@ -42223,7 +44143,7 @@
                                         "lValueRequested": false,
                                         "names": [],
                                         "nodeType": "FunctionCall",
-                                        "src": "13202:22:0",
+                                        "src": "13463:22:6",
                                         "tryCall": false,
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes20",
@@ -42238,26 +44158,26 @@
                                           "typeString": "bytes20"
                                         }
                                       ],
-                                      "id": 1220,
+                                      "id": 1626,
                                       "isConstant": false,
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                                       "isPure": true,
                                       "lValueRequested": false,
                                       "nodeType": "ElementaryTypeNameExpression",
-                                      "src": "13194:7:0",
+                                      "src": "13455:7:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_type$_t_bytes32_$",
                                         "typeString": "type(bytes32)"
                                       },
                                       "typeName": {
-                                        "id": 1219,
+                                        "id": 1625,
                                         "name": "bytes32",
                                         "nodeType": "ElementaryTypeName",
-                                        "src": "13194:7:0",
+                                        "src": "13455:7:6",
                                         "typeDescriptions": {}
                                       }
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                                     "isConstant": false,
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@@ -42265,7 +44185,7 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "13194:31:0",
+                                    "src": "13455:31:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes32",
@@ -42275,12 +44195,12 @@
                                   {
                                     "arguments": [
                                       {
-                                        "id": 1231,
+                                        "id": 1637,
                                         "name": "amount",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 1176,
-                                        "src": "13235:6:0",
+                                        "referencedDeclaration": 1582,
+                                        "src": "13496:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
@@ -42294,26 +44214,26 @@
                                           "typeString": "uint256"
                                         }
                                       ],
-                                      "id": 1230,
+                                      "id": 1636,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "lValueRequested": false,
                                       "nodeType": "ElementaryTypeNameExpression",
-                                      "src": "13227:7:0",
+                                      "src": "13488:7:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_type$_t_bytes32_$",
                                         "typeString": "type(bytes32)"
                                       },
                                       "typeName": {
-                                        "id": 1229,
+                                        "id": 1635,
                                         "name": "bytes32",
                                         "nodeType": "ElementaryTypeName",
-                                        "src": "13227:7:0",
+                                        "src": "13488:7:6",
                                         "typeDescriptions": {}
                                       }
                                     },
-                                    "id": 1232,
+                                    "id": 1638,
                                     "isConstant": false,
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@@ -42321,7 +44241,7 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "13227:15:0",
+                                    "src": "13488:15:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes32",
@@ -42341,39 +44261,39 @@
                                     }
                                   ],
                                   "expression": {
-                                    "id": 1217,
+                                    "id": 1623,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13181:5:0",
+                                    "src": "13442:5:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                       "typeString": "type(bytes storage pointer)"
                                     },
                                     "typeName": {
-                                      "id": 1216,
+                                      "id": 1622,
                                       "name": "bytes",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13181:5:0",
+                                      "src": "13442:5:6",
                                       "typeDescriptions": {}
                                     }
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                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "memberName": "concat",
                                   "nodeType": "MemberAccess",
-                                  "src": "13181:12:0",
+                                  "src": "13442:12:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                     "typeString": "function () pure returns (bytes memory)"
                                   }
                                 },
-                                "id": 1233,
+                                "id": 1639,
                                 "isConstant": false,
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@@ -42381,7 +44301,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "13181:62:0",
+                                "src": "13442:62:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes_memory_ptr",
@@ -42396,18 +44316,18 @@
                                   "typeString": "bytes memory"
                                 }
                               ],
-                              "id": 1215,
+                              "id": 1621,
                               "name": "keccak256",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 4294967288,
-                              "src": "13171:9:0",
+                              "src": "13432:9:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                 "typeString": "function (bytes memory) pure returns (bytes32)"
                               }
                             },
-                            "id": 1234,
+                            "id": 1640,
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@@ -42415,22 +44335,22 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "13171:73:0",
+                            "src": "13432:73:6",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
                             }
                           },
-                          "src": "13158:86:0",
+                          "src": "13419:86:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
                           }
                         },
-                        "id": 1236,
+                        "id": 1642,
                         "nodeType": "ExpressionStatement",
-                        "src": "13158:86:0"
+                        "src": "13419:86:6"
                       }
                     ]
                   }
@@ -42439,76 +44359,76 @@
                   "expression": {
                     "components": [
                       {
-                        "id": 1332,
+                        "id": 1737,
                         "name": "hash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1186,
-                        "src": "13938:4:0",
+                        "referencedDeclaration": 1592,
+                        "src": "14204:4:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1333,
+                        "id": 1738,
                         "name": "paramsHash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1204,
-                        "src": "13944:10:0",
+                        "referencedDeclaration": 1610,
+                        "src": "14210:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       }
                     ],
-                    "id": 1334,
+                    "id": 1739,
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                     "isInlineArray": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "nodeType": "TupleExpression",
-                    "src": "13937:18:0",
+                    "src": "14203:18:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$_t_bytes32_$_t_bytes32_$",
                       "typeString": "tuple(bytes32,bytes32)"
                     }
                   },
-                  "functionReturnParameters": 1184,
-                  "id": 1335,
+                  "functionReturnParameters": 1590,
+                  "id": 1740,
                   "nodeType": "Return",
-                  "src": "13930:25:0"
+                  "src": "14196:25:6"
                 }
               ]
             },
             "documentation": {
-              "id": 1156,
+              "id": 1562,
               "nodeType": "StructuredDocumentation",
-              "src": "12597:78:0",
+              "src": "12858:78:6",
               "text": "Provides commitHash, paramsHash, and verificationHash given the parameters"
             },
-            "id": 1337,
+            "id": 1742,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_getRevealHash",
-            "nameLocation": "12689:14:0",
+            "nameLocation": "12950:14:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 1179,
+              "id": 1585,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 1158,
+                  "id": 1564,
                   "mutability": "mutable",
                   "name": "neighbor",
-                  "nameLocation": "12712:8:0",
+                  "nameLocation": "12973:8:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1337,
-                  "src": "12704:16:0",
+                  "scope": 1742,
+                  "src": "12965:16:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -42516,10 +44436,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 1157,
+                    "id": 1563,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
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                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -42529,13 +44449,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1160,
+                  "id": 1566,
                   "mutability": "mutable",
                   "name": "indexWithNonce",
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+                  "nameLocation": "12990:14:6",
                   "nodeType": "VariableDeclaration",
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-                  "src": "12722:21:0",
+                  "scope": 1742,
+                  "src": "12983:21:6",
                   "stateVariable": false,
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@@ -42543,10 +44463,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 1159,
+                    "id": 1565,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "12722:6:0",
+                    "src": "12983:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -42556,13 +44476,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1162,
+                  "id": 1568,
                   "mutability": "mutable",
                   "name": "eotp",
-                  "nameLocation": "12753:4:0",
+                  "nameLocation": "13014:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1337,
-                  "src": "12745:12:0",
+                  "scope": 1742,
+                  "src": "13006:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -42570,10 +44490,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 1161,
+                    "id": 1567,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "12745:7:0",
+                    "src": "13006:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -42583,33 +44503,33 @@
                 },
                 {
                   "constant": false,
-                  "id": 1165,
+                  "id": 1571,
                   "mutability": "mutable",
                   "name": "operationType",
-                  "nameLocation": "12781:13:0",
+                  "nameLocation": "13042:13:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1337,
-                  "src": "12767:27:0",
+                  "scope": 1742,
+                  "src": "13028:27:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_OperationType_$103",
+                    "typeIdentifier": "t_enum$_OperationType_$493",
                     "typeString": "enum ONEWallet.OperationType"
                   },
                   "typeName": {
-                    "id": 1164,
+                    "id": 1570,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 1163,
+                      "id": 1569,
                       "name": "OperationType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 103,
-                      "src": "12767:13:0"
+                      "referencedDeclaration": 493,
+                      "src": "13028:13:6"
                     },
-                    "referencedDeclaration": 103,
-                    "src": "12767:13:0",
+                    "referencedDeclaration": 493,
+                    "src": "13028:13:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_OperationType_$103",
+                      "typeIdentifier": "t_enum$_OperationType_$493",
                       "typeString": "enum ONEWallet.OperationType"
                     }
                   },
@@ -42617,33 +44537,33 @@
                 },
                 {
                   "constant": false,
-                  "id": 1168,
+                  "id": 1574,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "12806:9:0",
+                  "nameLocation": "13067:9:6",
                   "nodeType": "VariableDeclaration",
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-                  "src": "12796:19:0",
+                  "scope": 1742,
+                  "src": "13057:19:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2176",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 1167,
+                    "id": 1573,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 1166,
+                      "id": 1572,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2176,
-                      "src": "12796:9:0"
+                      "referencedDeclaration": 2607,
+                      "src": "13057:9:6"
                     },
-                    "referencedDeclaration": 2176,
-                    "src": "12796:9:0",
+                    "referencedDeclaration": 2607,
+                    "src": "13057:9:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2176",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -42651,13 +44571,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1170,
+                  "id": 1576,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "12825:15:0",
+                  "nameLocation": "13086:15:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1337,
-                  "src": "12817:23:0",
+                  "scope": 1742,
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                   "stateVariable": false,
                   "storageLocation": "default",
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@@ -42665,10 +44585,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 1169,
+                    "id": 1575,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "12817:7:0",
+                    "src": "13078:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -42679,13 +44599,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1172,
+                  "id": 1578,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "12850:7:0",
+                  "nameLocation": "13111:7:6",
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-                  "src": "12842:15:0",
+                  "scope": 1742,
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                   "stateVariable": false,
                   "storageLocation": "default",
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@@ -42693,10 +44613,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 1171,
+                    "id": 1577,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "12842:7:0",
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                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -42706,13 +44626,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1174,
+                  "id": 1580,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "12867:4:0",
+                  "nameLocation": "13128:4:6",
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-                  "src": "12859:12:0",
+                  "scope": 1742,
+                  "src": "13120:12:6",
                   "stateVariable": false,
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@@ -42720,10 +44640,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 1173,
+                    "id": 1579,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "12859:7:0",
+                    "src": "13120:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -42734,13 +44654,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1176,
+                  "id": 1582,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "12881:6:0",
+                  "nameLocation": "13142:6:6",
                   "nodeType": "VariableDeclaration",
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-                  "src": "12873:14:0",
+                  "scope": 1742,
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                   "stateVariable": false,
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@@ -42748,10 +44668,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 1175,
+                    "id": 1581,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "12873:7:0",
+                    "src": "13134:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -42761,13 +44681,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1178,
+                  "id": 1584,
                   "mutability": "mutable",
                   "name": "data",
-                  "nameLocation": "12904:4:0",
+                  "nameLocation": "13165:4:6",
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-                  "src": "12889:19:0",
+                  "scope": 1742,
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                   "stateVariable": false,
                   "storageLocation": "calldata",
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@@ -42775,10 +44695,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 1177,
+                    "id": 1583,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "12889:5:0",
+                    "src": "13150:5:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -42787,21 +44707,21 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "12703:206:0"
+              "src": "12964:206:6"
             },
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                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
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-                  "src": "12933:7:0",
+                  "scope": 1742,
+                  "src": "13194:7:6",
                   "stateVariable": false,
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                   "typeDescriptions": {
@@ -42809,10 +44729,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 1180,
+                    "id": 1586,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "12933:7:0",
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                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -42822,13 +44742,13 @@
                 },
                 {
                   "constant": false,
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+                  "id": 1589,
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                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1337,
-                  "src": "12942:7:0",
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@@ -42836,10 +44756,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 1182,
+                    "id": 1588,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "12942:7:0",
+                    "src": "13203:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -42848,54 +44768,54 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "12932:18:0"
+              "src": "13193:18:6"
             },
-            "scope": 2161,
-            "src": "12680:1282:0",
+            "scope": 2592,
+            "src": "12941:1287:6",
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             "visibility": "internal"
           },
           {
             "body": {
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+              "id": 1923,
               "nodeType": "Block",
-              "src": "14224:1473:0",
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               "statements": [
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                       {
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                         "name": "neighbors",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1340,
-                        "src": "14250:9:0",
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                         "typeDescriptions": {
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                           "typeString": "bytes32[] calldata"
                         }
                       },
                       {
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                         "name": "indexWithNonce",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1342,
-                        "src": "14261:14:0",
+                        "referencedDeclaration": 1747,
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                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
                         }
                       },
                       {
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                         "name": "eotp",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1344,
-                        "src": "14277:4:0",
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                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -42917,18 +44837,18 @@
                           "typeString": "bytes32"
                         }
                       ],
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-                      "src": "14234:15:0",
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                         "typeIdentifier": "t_function_internal_view$_t_array$_t_bytes32_$dyn_calldata_ptr_$_t_uint32_$_t_bytes32_$returns$__$",
                         "typeString": "function (bytes32[] calldata,uint32,bytes32) view"
                       }
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@@ -42936,32 +44856,241 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "14234:48:0",
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                       "typeString": "tuple()"
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+                  "src": "14500:48:6"
+                },
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+                      "typeString": "uint32"
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+                    "leftExpression": {
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+                      "name": "indexWithNonce",
+                      "nodeType": "Identifier",
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+                      "src": "14562:14:6",
+                      "typeDescriptions": {
+                        "typeIdentifier": "t_uint32",
+                        "typeString": "uint32"
+                      }
+                    },
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+                    "operator": "==",
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+                        "typeString": "uint32"
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+                      "leftExpression": {
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+                        "name": "_numLeaves",
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+                        "src": "14580:10:6",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_uint32",
+                          "typeString": "uint32"
+                        }
+                      },
+                      "nodeType": "BinaryOperation",
+                      "operator": "-",
+                      "rightExpression": {
+                        "hexValue": "31",
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+                        "isPure": true,
+                        "kind": "number",
+                        "lValueRequested": false,
+                        "nodeType": "Literal",
+                        "src": "14593:1:6",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_rational_1_by_1",
+                          "typeString": "int_const 1"
+                        },
+                        "value": "1"
+                      },
+                      "src": "14580:14:6",
+                      "typeDescriptions": {
+                        "typeIdentifier": "t_uint32",
+                        "typeString": "uint32"
+                      }
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+                      "typeString": "bool"
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+                    "statements": [
+                      {
+                        "expression": {
+                          "arguments": [
+                            {
+                              "commonType": {
+                                "typeIdentifier": "t_enum$_OperationType_$493",
+                                "typeString": "enum ONEWallet.OperationType"
+                              },
+                              "id": 1783,
+                              "isConstant": false,
+                              "isLValue": false,
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+                              "lValueRequested": false,
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+                                "name": "operationType",
+                                "nodeType": "Identifier",
+                                "overloadedDeclarations": [],
+                                "referencedDeclaration": 1752,
+                                "src": "14618:13:6",
+                                "typeDescriptions": {
+                                  "typeIdentifier": "t_enum$_OperationType_$493",
+                                  "typeString": "enum ONEWallet.OperationType"
+                                }
+                              },
+                              "nodeType": "BinaryOperation",
+                              "operator": "==",
+                              "rightExpression": {
+                                "expression": {
+                                  "id": 1781,
+                                  "name": "OperationType",
+                                  "nodeType": "Identifier",
+                                  "overloadedDeclarations": [],
+                                  "referencedDeclaration": 493,
+                                  "src": "14635:13:6",
+                                  "typeDescriptions": {
+                                    "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
+                                    "typeString": "type(enum ONEWallet.OperationType)"
+                                  }
+                                },
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+                                "isConstant": false,
+                                "isLValue": false,
+                                "isPure": true,
+                                "lValueRequested": false,
+                                "memberName": "RECOVER",
+                                "nodeType": "MemberAccess",
+                                "referencedDeclaration": 491,
+                                "src": "14635:21:6",
+                                "typeDescriptions": {
+                                  "typeIdentifier": "t_enum$_OperationType_$493",
+                                  "typeString": "enum ONEWallet.OperationType"
+                                }
+                              },
+                              "src": "14618:38:6",
+                              "typeDescriptions": {
+                                "typeIdentifier": "t_bool",
+                                "typeString": "bool"
+                              }
+                            },
+                            {
+                              "hexValue": "4c617374206f7065726174696f6e20726573657276656420666f72207265636f766572",
+                              "id": 1784,
+                              "isConstant": false,
+                              "isLValue": false,
+                              "isPure": true,
+                              "kind": "string",
+                              "lValueRequested": false,
+                              "nodeType": "Literal",
+                              "src": "14658:37:6",
+                              "typeDescriptions": {
+                                "typeIdentifier": "t_stringliteral_fab9828a623b3dec5ff9fd3a2c3a6f583ee6577f264fc8a5c168e0454ba5a4ba",
+                                "typeString": "literal_string \"Last operation reserved for recover\""
+                              },
+                              "value": "Last operation reserved for recover"
+                            }
+                          ],
+                          "expression": {
+                            "argumentTypes": [
+                              {
+                                "typeIdentifier": "t_bool",
+                                "typeString": "bool"
+                              },
+                              {
+                                "typeIdentifier": "t_stringliteral_fab9828a623b3dec5ff9fd3a2c3a6f583ee6577f264fc8a5c168e0454ba5a4ba",
+                                "typeString": "literal_string \"Last operation reserved for recover\""
+                              }
+                            ],
+                            "id": 1779,
+                            "name": "require",
+                            "nodeType": "Identifier",
+                            "overloadedDeclarations": [
+                              4294967278,
+                              4294967278
+                            ],
+                            "referencedDeclaration": 4294967278,
+                            "src": "14610:7:6",
+                            "typeDescriptions": {
+                              "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
+                              "typeString": "function (bool,string memory) pure"
+                            }
+                          },
+                          "id": 1785,
+                          "isConstant": false,
+                          "isLValue": false,
+                          "isPure": false,
+                          "kind": "functionCall",
+                          "lValueRequested": false,
+                          "names": [],
+                          "nodeType": "FunctionCall",
+                          "src": "14610:86:6",
+                          "tryCall": false,
+                          "typeDescriptions": {
+                            "typeIdentifier": "t_tuple$__$",
+                            "typeString": "tuple()"
+                          }
+                        },
+                        "id": 1786,
+                        "nodeType": "ExpressionStatement",
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+                      }
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                 },
                 {
                   "assignments": [
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+                    1790,
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                       "constant": false,
-                      "id": 1370,
+                      "id": 1790,
                       "mutability": "mutable",
                       "name": "commitHash",
-                      "nameLocation": "14301:10:0",
+                      "nameLocation": "14725:10:6",
                       "nodeType": "VariableDeclaration",
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-                      "src": "14293:18:0",
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@@ -42969,10 +45098,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 1369,
+                        "id": 1789,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "14293:7:0",
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                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -42982,13 +45111,13 @@
                     },
                     {
                       "constant": false,
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                       "mutability": "mutable",
                       "name": "paramsHash",
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                       "nodeType": "VariableDeclaration",
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-                      "src": "14313:18:0",
+                      "scope": 1923,
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                       "stateVariable": false,
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                       "typeDescriptions": {
@@ -42996,10 +45125,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 1371,
+                        "id": 1791,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "14313:7:0",
+                        "src": "14737:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -43008,33 +45137,33 @@
                       "visibility": "internal"
                     }
                   ],
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+                  "id": 1807,
                   "initialValue": {
                     "arguments": [
                       {
                         "baseExpression": {
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                           "name": "neighbors",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1340,
-                          "src": "14350:9:0",
+                          "referencedDeclaration": 1745,
+                          "src": "14774:9:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_array$_t_bytes32_$dyn_calldata_ptr",
                             "typeString": "bytes32[] calldata"
                           }
                         },
-                        "id": 1376,
+                        "id": 1796,
                         "indexExpression": {
                           "hexValue": "30",
-                          "id": 1375,
+                          "id": 1795,
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                           "isPure": true,
                           "kind": "number",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "14360:1:0",
+                          "src": "14784:1:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_rational_0_by_1",
                             "typeString": "int_const 0"
@@ -43046,115 +45175,115 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "14350:12:0",
+                        "src": "14774:12:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1377,
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                         "name": "indexWithNonce",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1342,
-                        "src": "14364:14:0",
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                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
                         }
                       },
                       {
-                        "id": 1378,
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                         "name": "eotp",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1344,
-                        "src": "14380:4:0",
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                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1379,
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                         "name": "operationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1347,
-                        "src": "14398:13:0",
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                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         }
                       },
                       {
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                         "name": "tokenType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1350,
-                        "src": "14413:9:0",
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+                        "src": "14837:9:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
-                        "id": 1381,
+                        "id": 1801,
                         "name": "contractAddress",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1352,
-                        "src": "14424:15:0",
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+                        "src": "14848:15:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
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                         "name": "tokenId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1354,
-                        "src": "14441:7:0",
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                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         }
                       },
                       {
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+                        "id": 1803,
                         "name": "dest",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1356,
-                        "src": "14450:4:0",
+                        "referencedDeclaration": 1761,
+                        "src": "14874:4:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address_payable",
                           "typeString": "address payable"
                         }
                       },
                       {
-                        "id": 1384,
+                        "id": 1804,
                         "name": "amount",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1358,
-                        "src": "14456:6:0",
+                        "referencedDeclaration": 1763,
+                        "src": "14880:6:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         }
                       },
                       {
-                        "id": 1385,
+                        "id": 1805,
                         "name": "data",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1360,
-                        "src": "14464:4:0",
+                        "referencedDeclaration": 1765,
+                        "src": "14888:4:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_calldata_ptr",
                           "typeString": "bytes calldata"
@@ -43176,11 +45305,11 @@
                           "typeString": "bytes32"
                         },
                         {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         },
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -43204,18 +45333,18 @@
                           "typeString": "bytes calldata"
                         }
                       ],
-                      "id": 1373,
+                      "id": 1793,
                       "name": "_getRevealHash",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1337,
-                      "src": "14335:14:0",
+                      "referencedDeclaration": 1742,
+                      "src": "14759:14:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_pure$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_enum$_OperationType_$103_$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_calldata_ptr_$returns$_t_bytes32_$_t_bytes32_$",
+                        "typeIdentifier": "t_function_internal_pure$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_enum$_OperationType_$493_$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_calldata_ptr_$returns$_t_bytes32_$_t_bytes32_$",
                         "typeString": "function (bytes32,uint32,bytes32,enum ONEWallet.OperationType,enum TokenTracker.TokenType,address,uint256,address,uint256,bytes calldata) pure returns (bytes32,bytes32)"
                       }
                     },
-                    "id": 1386,
+                    "id": 1806,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -43223,7 +45352,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "14335:134:0",
+                    "src": "14759:134:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$_t_bytes32_$_t_bytes32_$",
@@ -43231,22 +45360,22 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "14292:177:0"
+                  "src": "14716:177:6"
                 },
                 {
                   "assignments": [
-                    1389
+                    1809
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 1389,
+                      "id": 1809,
                       "mutability": "mutable",
                       "name": "commitIndex",
-                      "nameLocation": "14486:11:0",
+                      "nameLocation": "14910:11:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1503,
-                      "src": "14479:18:0",
+                      "scope": 1923,
+                      "src": "14903:18:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -43254,10 +45383,10 @@
                         "typeString": "uint32"
                       },
                       "typeName": {
-                        "id": 1388,
+                        "id": 1808,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "14479:6:0",
+                        "src": "14903:6:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -43266,52 +45395,52 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 1396,
+                  "id": 1816,
                   "initialValue": {
                     "arguments": [
                       {
-                        "id": 1391,
+                        "id": 1811,
                         "name": "commitHash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1370,
-                        "src": "14514:10:0",
+                        "referencedDeclaration": 1790,
+                        "src": "14938:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1392,
+                        "id": 1812,
                         "name": "indexWithNonce",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1342,
-                        "src": "14526:14:0",
+                        "referencedDeclaration": 1747,
+                        "src": "14950:14:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
                         }
                       },
                       {
-                        "id": 1393,
+                        "id": 1813,
                         "name": "paramsHash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1372,
-                        "src": "14542:10:0",
+                        "referencedDeclaration": 1792,
+                        "src": "14966:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1394,
+                        "id": 1814,
                         "name": "eotp",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1344,
-                        "src": "14554:4:0",
+                        "referencedDeclaration": 1749,
+                        "src": "14978:4:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -43337,18 +45466,18 @@
                           "typeString": "bytes32"
                         }
                       ],
-                      "id": 1390,
+                      "id": 1810,
                       "name": "_verifyReveal",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1928,
-                      "src": "14500:13:0",
+                      "referencedDeclaration": 2359,
+                      "src": "14924:13:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_internal_view$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_bytes32_$returns$_t_uint32_$",
                         "typeString": "function (bytes32,uint32,bytes32,bytes32) view returns (uint32)"
                       }
                     },
-                    "id": 1395,
+                    "id": 1815,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -43356,7 +45485,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "14500:59:0",
+                    "src": "14924:59:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
@@ -43364,30 +45493,30 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "14479:80:0"
+                  "src": "14903:80:6"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
-                        "id": 1398,
+                        "id": 1818,
                         "name": "commitHash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1370,
-                        "src": "14585:10:0",
+                        "referencedDeclaration": 1790,
+                        "src": "15009:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1399,
+                        "id": 1819,
                         "name": "commitIndex",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1389,
-                        "src": "14597:11:0",
+                        "referencedDeclaration": 1809,
+                        "src": "15021:11:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -43405,18 +45534,18 @@
                           "typeString": "uint32"
                         }
                       ],
-                      "id": 1397,
+                      "id": 1817,
                       "name": "_completeReveal",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2001,
-                      "src": "14569:15:0",
+                      "referencedDeclaration": 2432,
+                      "src": "14993:15:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_internal_nonpayable$_t_bytes32_$_t_uint32_$returns$__$",
                         "typeString": "function (bytes32,uint32)"
                       }
                     },
-                    "id": 1400,
+                    "id": 1820,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -43424,37 +45553,37 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "14569:40:0",
+                    "src": "14993:40:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 1401,
+                  "id": 1821,
                   "nodeType": "ExpressionStatement",
-                  "src": "14569:40:0"
+                  "src": "14993:40:6"
                 },
                 {
                   "condition": {
                     "commonType": {
-                      "typeIdentifier": "t_enum$_OperationType_$103",
+                      "typeIdentifier": "t_enum$_OperationType_$493",
                       "typeString": "enum ONEWallet.OperationType"
                     },
-                    "id": 1405,
+                    "id": 1825,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 1402,
+                      "id": 1822,
                       "name": "operationType",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1347,
-                      "src": "14674:13:0",
+                      "referencedDeclaration": 1752,
+                      "src": "15098:13:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_OperationType_$103",
+                        "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       }
                     },
@@ -43462,32 +45591,32 @@
                     "operator": "==",
                     "rightExpression": {
                       "expression": {
-                        "id": 1403,
+                        "id": 1823,
                         "name": "OperationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 103,
-                        "src": "14691:13:0",
+                        "referencedDeclaration": 493,
+                        "src": "15115:13:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                          "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                           "typeString": "type(enum ONEWallet.OperationType)"
                         }
                       },
-                      "id": 1404,
+                      "id": 1824,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "memberName": "TRACK",
                       "nodeType": "MemberAccess",
-                      "referencedDeclaration": 96,
-                      "src": "14691:19:0",
+                      "referencedDeclaration": 485,
+                      "src": "15115:19:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_OperationType_$103",
+                        "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       }
                     },
-                    "src": "14674:36:0",
+                    "src": "15098:36:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -43496,23 +45625,23 @@
                   "falseBody": {
                     "condition": {
                       "commonType": {
-                        "typeIdentifier": "t_enum$_OperationType_$103",
+                        "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       },
-                      "id": 1427,
+                      "id": 1847,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "leftExpression": {
-                        "id": 1424,
+                        "id": 1844,
                         "name": "operationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1347,
-                        "src": "14904:13:0",
+                        "referencedDeclaration": 1752,
+                        "src": "15328:13:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         }
                       },
@@ -43520,32 +45649,32 @@
                       "operator": "==",
                       "rightExpression": {
                         "expression": {
-                          "id": 1425,
+                          "id": 1845,
                           "name": "OperationType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 103,
-                          "src": "14921:13:0",
+                          "referencedDeclaration": 493,
+                          "src": "15345:13:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                            "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                             "typeString": "type(enum ONEWallet.OperationType)"
                           }
                         },
-                        "id": 1426,
+                        "id": 1846,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "memberName": "UNTRACK",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 97,
-                        "src": "14921:21:0",
+                        "referencedDeclaration": 486,
+                        "src": "15345:21:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         }
                       },
-                      "src": "14904:38:0",
+                      "src": "15328:38:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
@@ -43554,23 +45683,23 @@
                     "falseBody": {
                       "condition": {
                         "commonType": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         },
-                        "id": 1449,
+                        "id": 1869,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
-                          "id": 1446,
+                          "id": 1866,
                           "name": "operationType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1347,
-                          "src": "15140:13:0",
+                          "referencedDeclaration": 1752,
+                          "src": "15564:13:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_OperationType_$103",
+                            "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           }
                         },
@@ -43578,32 +45707,32 @@
                         "operator": "==",
                         "rightExpression": {
                           "expression": {
-                            "id": 1447,
+                            "id": 1867,
                             "name": "OperationType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 103,
-                            "src": "15157:13:0",
+                            "referencedDeclaration": 493,
+                            "src": "15581:13:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                              "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                               "typeString": "type(enum ONEWallet.OperationType)"
                             }
                           },
-                          "id": 1448,
+                          "id": 1868,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "lValueRequested": false,
                           "memberName": "TRANSFER_TOKEN",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 98,
-                          "src": "15157:28:0",
+                          "referencedDeclaration": 487,
+                          "src": "15581:28:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_OperationType_$103",
+                            "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           }
                         },
-                        "src": "15140:45:0",
+                        "src": "15564:45:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -43612,23 +45741,23 @@
                       "falseBody": {
                         "condition": {
                           "commonType": {
-                            "typeIdentifier": "t_enum$_OperationType_$103",
+                            "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           },
-                          "id": 1463,
+                          "id": 1883,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 1460,
+                            "id": 1880,
                             "name": "operationType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1347,
-                            "src": "15293:13:0",
+                            "referencedDeclaration": 1752,
+                            "src": "15717:13:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_OperationType_$103",
+                              "typeIdentifier": "t_enum$_OperationType_$493",
                               "typeString": "enum ONEWallet.OperationType"
                             }
                           },
@@ -43636,32 +45765,32 @@
                           "operator": "==",
                           "rightExpression": {
                             "expression": {
-                              "id": 1461,
+                              "id": 1881,
                               "name": "OperationType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 103,
-                              "src": "15310:13:0",
+                              "referencedDeclaration": 493,
+                              "src": "15734:13:6",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                                "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                 "typeString": "type(enum ONEWallet.OperationType)"
                               }
                             },
-                            "id": 1462,
+                            "id": 1882,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "memberName": "OVERRIDE_TRACK",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 99,
-                            "src": "15310:28:0",
+                            "referencedDeclaration": 488,
+                            "src": "15734:28:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_OperationType_$103",
+                              "typeIdentifier": "t_enum$_OperationType_$493",
                               "typeString": "enum ONEWallet.OperationType"
                             }
                           },
-                          "src": "15293:45:0",
+                          "src": "15717:45:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
@@ -43670,23 +45799,23 @@
                         "falseBody": {
                           "condition": {
                             "commonType": {
-                              "typeIdentifier": "t_enum$_OperationType_$103",
+                              "typeIdentifier": "t_enum$_OperationType_$493",
                               "typeString": "enum ONEWallet.OperationType"
                             },
-                            "id": 1472,
+                            "id": 1892,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "leftExpression": {
-                              "id": 1469,
+                              "id": 1889,
                               "name": "operationType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 1347,
-                              "src": "15404:13:0",
+                              "referencedDeclaration": 1752,
+                              "src": "15828:13:6",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_OperationType_$103",
+                                "typeIdentifier": "t_enum$_OperationType_$493",
                                 "typeString": "enum ONEWallet.OperationType"
                               }
                             },
@@ -43694,32 +45823,32 @@
                             "operator": "==",
                             "rightExpression": {
                               "expression": {
-                                "id": 1470,
+                                "id": 1890,
                                 "name": "OperationType",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 103,
-                                "src": "15421:13:0",
+                                "referencedDeclaration": 493,
+                                "src": "15845:13:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                                  "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                   "typeString": "type(enum ONEWallet.OperationType)"
                                 }
                               },
-                              "id": 1471,
+                              "id": 1891,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "memberName": "TRANSFER",
                               "nodeType": "MemberAccess",
-                              "referencedDeclaration": 100,
-                              "src": "15421:22:0",
+                              "referencedDeclaration": 489,
+                              "src": "15845:22:6",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_OperationType_$103",
+                                "typeIdentifier": "t_enum$_OperationType_$493",
                                 "typeString": "enum ONEWallet.OperationType"
                               }
                             },
-                            "src": "15404:39:0",
+                            "src": "15828:39:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bool",
                               "typeString": "bool"
@@ -43728,23 +45857,23 @@
                           "falseBody": {
                             "condition": {
                               "commonType": {
-                                "typeIdentifier": "t_enum$_OperationType_$103",
+                                "typeIdentifier": "t_enum$_OperationType_$493",
                                 "typeString": "enum ONEWallet.OperationType"
                               },
-                              "id": 1482,
+                              "id": 1902,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
                               "lValueRequested": false,
                               "leftExpression": {
-                                "id": 1479,
+                                "id": 1899,
                                 "name": "operationType",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 1347,
-                                "src": "15503:13:0",
+                                "referencedDeclaration": 1752,
+                                "src": "15927:13:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_enum$_OperationType_$103",
+                                  "typeIdentifier": "t_enum$_OperationType_$493",
                                   "typeString": "enum ONEWallet.OperationType"
                                 }
                               },
@@ -43752,32 +45881,32 @@
                               "operator": "==",
                               "rightExpression": {
                                 "expression": {
-                                  "id": 1480,
+                                  "id": 1900,
                                   "name": "OperationType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 103,
-                                  "src": "15520:13:0",
+                                  "referencedDeclaration": 493,
+                                  "src": "15944:13:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                                    "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                     "typeString": "type(enum ONEWallet.OperationType)"
                                   }
                                 },
-                                "id": 1481,
+                                "id": 1901,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
                                 "lValueRequested": false,
                                 "memberName": "RECOVER",
                                 "nodeType": "MemberAccess",
-                                "referencedDeclaration": 102,
-                                "src": "15520:21:0",
+                                "referencedDeclaration": 491,
+                                "src": "15944:21:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_enum$_OperationType_$103",
+                                  "typeIdentifier": "t_enum$_OperationType_$493",
                                   "typeString": "enum ONEWallet.OperationType"
                                 }
                               },
-                              "src": "15503:38:0",
+                              "src": "15927:38:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bool",
                                 "typeString": "bool"
@@ -43786,23 +45915,23 @@
                             "falseBody": {
                               "condition": {
                                 "commonType": {
-                                  "typeIdentifier": "t_enum$_OperationType_$103",
+                                  "typeIdentifier": "t_enum$_OperationType_$493",
                                   "typeString": "enum ONEWallet.OperationType"
                                 },
-                                "id": 1490,
+                                "id": 1910,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "leftExpression": {
-                                  "id": 1487,
+                                  "id": 1907,
                                   "name": "operationType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1347,
-                                  "src": "15588:13:0",
+                                  "referencedDeclaration": 1752,
+                                  "src": "16012:13:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_OperationType_$103",
+                                    "typeIdentifier": "t_enum$_OperationType_$493",
                                     "typeString": "enum ONEWallet.OperationType"
                                   }
                                 },
@@ -43810,55 +45939,55 @@
                                 "operator": "==",
                                 "rightExpression": {
                                   "expression": {
-                                    "id": 1488,
+                                    "id": 1908,
                                     "name": "OperationType",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 103,
-                                    "src": "15605:13:0",
+                                    "referencedDeclaration": 493,
+                                    "src": "16029:13:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                                      "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                       "typeString": "type(enum ONEWallet.OperationType)"
                                     }
                                   },
-                                  "id": 1489,
+                                  "id": 1909,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "memberName": "SET_RECOVERY_ADDRESS",
                                   "nodeType": "MemberAccess",
-                                  "referencedDeclaration": 101,
-                                  "src": "15605:34:0",
+                                  "referencedDeclaration": 490,
+                                  "src": "16029:34:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_OperationType_$103",
+                                    "typeIdentifier": "t_enum$_OperationType_$493",
                                     "typeString": "enum ONEWallet.OperationType"
                                   }
                                 },
-                                "src": "15588:51:0",
+                                "src": "16012:51:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bool",
                                   "typeString": "bool"
                                 }
                               },
-                              "id": 1496,
+                              "id": 1916,
                               "nodeType": "IfStatement",
-                              "src": "15584:107:0",
+                              "src": "16008:107:6",
                               "trueBody": {
-                                "id": 1495,
+                                "id": 1915,
                                 "nodeType": "Block",
-                                "src": "15641:50:0",
+                                "src": "16065:50:6",
                                 "statements": [
                                   {
                                     "expression": {
                                       "arguments": [
                                         {
-                                          "id": 1492,
+                                          "id": 1912,
                                           "name": "dest",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 1356,
-                                          "src": "15675:4:0",
+                                          "referencedDeclaration": 1761,
+                                          "src": "16099:4:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address_payable",
                                             "typeString": "address payable"
@@ -43872,18 +46001,18 @@
                                             "typeString": "address payable"
                                           }
                                         ],
-                                        "id": 1491,
+                                        "id": 1911,
                                         "name": "_setRecoveryAddress",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 959,
-                                        "src": "15655:19:0",
+                                        "referencedDeclaration": 1365,
+                                        "src": "16079:19:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_function_internal_nonpayable$_t_address_payable_$returns$__$",
                                           "typeString": "function (address payable)"
                                         }
                                       },
-                                      "id": 1493,
+                                      "id": 1913,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -43891,45 +46020,45 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "15655:25:0",
+                                      "src": "16079:25:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_tuple$__$",
                                         "typeString": "tuple()"
                                       }
                                     },
-                                    "id": 1494,
+                                    "id": 1914,
                                     "nodeType": "ExpressionStatement",
-                                    "src": "15655:25:0"
+                                    "src": "16079:25:6"
                                   }
                                 ]
                               }
                             },
-                            "id": 1497,
+                            "id": 1917,
                             "nodeType": "IfStatement",
-                            "src": "15499:192:0",
+                            "src": "15923:192:6",
                             "trueBody": {
-                              "id": 1486,
+                              "id": 1906,
                               "nodeType": "Block",
-                              "src": "15543:35:0",
+                              "src": "15967:35:6",
                               "statements": [
                                 {
                                   "expression": {
                                     "arguments": [],
                                     "expression": {
                                       "argumentTypes": [],
-                                      "id": 1483,
+                                      "id": 1903,
                                       "name": "_recover",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 939,
-                                      "src": "15557:8:0",
+                                      "referencedDeclaration": 1345,
+                                      "src": "15981:8:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_function_internal_nonpayable$__$returns$_t_bool_$",
                                         "typeString": "function () returns (bool)"
                                       }
                                     },
-                                    "id": 1484,
+                                    "id": 1904,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -43937,50 +46066,50 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "15557:10:0",
+                                    "src": "15981:10:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bool",
                                       "typeString": "bool"
                                     }
                                   },
-                                  "id": 1485,
+                                  "id": 1905,
                                   "nodeType": "ExpressionStatement",
-                                  "src": "15557:10:0"
+                                  "src": "15981:10:6"
                                 }
                               ]
                             }
                           },
-                          "id": 1498,
+                          "id": 1918,
                           "nodeType": "IfStatement",
-                          "src": "15400:291:0",
+                          "src": "15824:291:6",
                           "trueBody": {
-                            "id": 1478,
+                            "id": 1898,
                             "nodeType": "Block",
-                            "src": "15445:48:0",
+                            "src": "15869:48:6",
                             "statements": [
                               {
                                 "expression": {
                                   "arguments": [
                                     {
-                                      "id": 1474,
+                                      "id": 1894,
                                       "name": "dest",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1356,
-                                      "src": "15469:4:0",
+                                      "referencedDeclaration": 1761,
+                                      "src": "15893:4:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_address_payable",
                                         "typeString": "address payable"
                                       }
                                     },
                                     {
-                                      "id": 1475,
+                                      "id": 1895,
                                       "name": "amount",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1358,
-                                      "src": "15475:6:0",
+                                      "referencedDeclaration": 1763,
+                                      "src": "15899:6:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -43998,18 +46127,18 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1473,
+                                    "id": 1893,
                                     "name": "_transfer",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 908,
-                                    "src": "15459:9:0",
+                                    "referencedDeclaration": 1314,
+                                    "src": "15883:9:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_nonpayable$_t_address_payable_$_t_uint256_$returns$_t_bool_$",
                                       "typeString": "function (address payable,uint256) returns (bool)"
                                     }
                                   },
-                                  "id": 1476,
+                                  "id": 1896,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -44017,38 +46146,38 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "15459:23:0",
+                                  "src": "15883:23:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bool",
                                     "typeString": "bool"
                                   }
                                 },
-                                "id": 1477,
+                                "id": 1897,
                                 "nodeType": "ExpressionStatement",
-                                "src": "15459:23:0"
+                                "src": "15883:23:6"
                               }
                             ]
                           }
                         },
-                        "id": 1499,
+                        "id": 1919,
                         "nodeType": "IfStatement",
-                        "src": "15289:402:0",
+                        "src": "15713:402:6",
                         "trueBody": {
-                          "id": 1468,
+                          "id": 1888,
                           "nodeType": "Block",
-                          "src": "15340:54:0",
+                          "src": "15764:54:6",
                           "statements": [
                             {
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 1465,
+                                    "id": 1885,
                                     "name": "data",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1360,
-                                    "src": "15378:4:0",
+                                    "referencedDeclaration": 1765,
+                                    "src": "15802:4:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -44062,18 +46191,18 @@
                                       "typeString": "bytes calldata"
                                     }
                                   ],
-                                  "id": 1464,
+                                  "id": 1884,
                                   "name": "_overrideTrackWithBytes",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 3166,
-                                  "src": "15354:23:0",
+                                  "referencedDeclaration": 3597,
+                                  "src": "15778:23:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_calldata_ptr_$returns$__$",
                                     "typeString": "function (bytes calldata)"
                                   }
                                 },
-                                "id": 1466,
+                                "id": 1886,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -44081,98 +46210,98 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "15354:29:0",
+                                "src": "15778:29:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_tuple$__$",
                                   "typeString": "tuple()"
                                 }
                               },
-                              "id": 1467,
+                              "id": 1887,
                               "nodeType": "ExpressionStatement",
-                              "src": "15354:29:0"
+                              "src": "15778:29:6"
                             }
                           ]
                         }
                       },
-                      "id": 1500,
+                      "id": 1920,
                       "nodeType": "IfStatement",
-                      "src": "15136:555:0",
+                      "src": "15560:555:6",
                       "trueBody": {
-                        "id": 1459,
+                        "id": 1879,
                         "nodeType": "Block",
-                        "src": "15187:96:0",
+                        "src": "15611:96:6",
                         "statements": [
                           {
                             "expression": {
                               "arguments": [
                                 {
-                                  "id": 1451,
+                                  "id": 1871,
                                   "name": "tokenType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1350,
-                                  "src": "15216:9:0",
+                                  "referencedDeclaration": 1755,
+                                  "src": "15640:9:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_TokenType_$2176",
+                                    "typeIdentifier": "t_enum$_TokenType_$2607",
                                     "typeString": "enum TokenTracker.TokenType"
                                   }
                                 },
                                 {
-                                  "id": 1452,
+                                  "id": 1872,
                                   "name": "contractAddress",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1352,
-                                  "src": "15227:15:0",
+                                  "referencedDeclaration": 1757,
+                                  "src": "15651:15:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
                                   }
                                 },
                                 {
-                                  "id": 1453,
+                                  "id": 1873,
                                   "name": "tokenId",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1354,
-                                  "src": "15244:7:0",
+                                  "referencedDeclaration": 1759,
+                                  "src": "15668:7:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
                                 {
-                                  "id": 1454,
+                                  "id": 1874,
                                   "name": "dest",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1356,
-                                  "src": "15253:4:0",
+                                  "referencedDeclaration": 1761,
+                                  "src": "15677:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address_payable",
                                     "typeString": "address payable"
                                   }
                                 },
                                 {
-                                  "id": 1455,
+                                  "id": 1875,
                                   "name": "amount",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1358,
-                                  "src": "15259:6:0",
+                                  "referencedDeclaration": 1763,
+                                  "src": "15683:6:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
                                 {
-                                  "id": 1456,
+                                  "id": 1876,
                                   "name": "data",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1360,
-                                  "src": "15267:4:0",
+                                  "referencedDeclaration": 1765,
+                                  "src": "15691:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes_calldata_ptr",
                                     "typeString": "bytes calldata"
@@ -44182,7 +46311,7 @@
                               "expression": {
                                 "argumentTypes": [
                                   {
-                                    "typeIdentifier": "t_enum$_TokenType_$2176",
+                                    "typeIdentifier": "t_enum$_TokenType_$2607",
                                     "typeString": "enum TokenTracker.TokenType"
                                   },
                                   {
@@ -44206,18 +46335,18 @@
                                     "typeString": "bytes calldata"
                                   }
                                 ],
-                                "id": 1450,
+                                "id": 1870,
                                 "name": "_transferToken",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 1155,
-                                "src": "15201:14:0",
+                                "referencedDeclaration": 1561,
+                                "src": "15625:14:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
+                                  "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
                                   "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,bytes memory)"
                                 }
                               },
-                              "id": 1457,
+                              "id": 1877,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -44225,27 +46354,27 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "15201:71:0",
+                              "src": "15625:71:6",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_tuple$__$",
                                 "typeString": "tuple()"
                               }
                             },
-                            "id": 1458,
+                            "id": 1878,
                             "nodeType": "ExpressionStatement",
-                            "src": "15201:71:0"
+                            "src": "15625:71:6"
                           }
                         ]
                       }
                     },
-                    "id": 1501,
+                    "id": 1921,
                     "nodeType": "IfStatement",
-                    "src": "14900:791:0",
+                    "src": "15324:791:6",
                     "trueBody": {
-                      "id": 1445,
+                      "id": 1865,
                       "nodeType": "Block",
-                      "src": "14944:186:0",
+                      "src": "15368:186:6",
                       "statements": [
                         {
                           "condition": {
@@ -44253,32 +46382,32 @@
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             },
-                            "id": 1431,
+                            "id": 1851,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "leftExpression": {
                               "expression": {
-                                "id": 1428,
+                                "id": 1848,
                                 "name": "data",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 1360,
-                                "src": "14962:4:0",
+                                "referencedDeclaration": 1765,
+                                "src": "15386:4:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes_calldata_ptr",
                                   "typeString": "bytes calldata"
                                 }
                               },
-                              "id": 1429,
+                              "id": 1849,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
                               "lValueRequested": false,
                               "memberName": "length",
                               "nodeType": "MemberAccess",
-                              "src": "14962:11:0",
+                              "src": "15386:11:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -44288,41 +46417,41 @@
                             "operator": ">",
                             "rightExpression": {
                               "hexValue": "30",
-                              "id": 1430,
+                              "id": 1850,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "kind": "number",
                               "lValueRequested": false,
                               "nodeType": "Literal",
-                              "src": "14976:1:0",
+                              "src": "15400:1:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_rational_0_by_1",
                                 "typeString": "int_const 0"
                               },
                               "value": "0"
                             },
-                            "src": "14962:15:0",
+                            "src": "15386:15:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bool",
                               "typeString": "bool"
                             }
                           },
                           "falseBody": {
-                            "id": 1443,
+                            "id": 1863,
                             "nodeType": "Block",
-                            "src": "15068:52:0",
+                            "src": "15492:52:6",
                             "statements": [
                               {
                                 "expression": {
                                   "arguments": [
                                     {
-                                      "id": 1440,
+                                      "id": 1860,
                                       "name": "data",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1360,
-                                      "src": "15100:4:0",
+                                      "referencedDeclaration": 1765,
+                                      "src": "15524:4:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes_calldata_ptr",
                                         "typeString": "bytes calldata"
@@ -44336,18 +46465,18 @@
                                         "typeString": "bytes calldata"
                                       }
                                     ],
-                                    "id": 1439,
+                                    "id": 1859,
                                     "name": "_multiUntrack",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3382,
-                                    "src": "15086:13:0",
+                                    "referencedDeclaration": 3813,
+                                    "src": "15510:13:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_calldata_ptr_$returns$__$",
                                       "typeString": "function (bytes calldata)"
                                     }
                                   },
-                                  "id": 1441,
+                                  "id": 1861,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -44355,61 +46484,61 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "15086:19:0",
+                                  "src": "15510:19:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_tuple$__$",
                                     "typeString": "tuple()"
                                   }
                                 },
-                                "id": 1442,
+                                "id": 1862,
                                 "nodeType": "ExpressionStatement",
-                                "src": "15086:19:0"
+                                "src": "15510:19:6"
                               }
                             ]
                           },
-                          "id": 1444,
+                          "id": 1864,
                           "nodeType": "IfStatement",
-                          "src": "14958:162:0",
+                          "src": "15382:162:6",
                           "trueBody": {
-                            "id": 1438,
+                            "id": 1858,
                             "nodeType": "Block",
-                            "src": "14979:83:0",
+                            "src": "15403:83:6",
                             "statements": [
                               {
                                 "expression": {
                                   "arguments": [
                                     {
-                                      "id": 1433,
+                                      "id": 1853,
                                       "name": "tokenType",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1350,
-                                      "src": "15011:9:0",
+                                      "referencedDeclaration": 1755,
+                                      "src": "15435:9:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_enum$_TokenType_$2176",
+                                        "typeIdentifier": "t_enum$_TokenType_$2607",
                                         "typeString": "enum TokenTracker.TokenType"
                                       }
                                     },
                                     {
-                                      "id": 1434,
+                                      "id": 1854,
                                       "name": "contractAddress",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1352,
-                                      "src": "15022:15:0",
+                                      "referencedDeclaration": 1757,
+                                      "src": "15446:15:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_address",
                                         "typeString": "address"
                                       }
                                     },
                                     {
-                                      "id": 1435,
+                                      "id": 1855,
                                       "name": "tokenId",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1354,
-                                      "src": "15039:7:0",
+                                      "referencedDeclaration": 1759,
+                                      "src": "15463:7:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -44419,7 +46548,7 @@
                                   "expression": {
                                     "argumentTypes": [
                                       {
-                                        "typeIdentifier": "t_enum$_TokenType_$2176",
+                                        "typeIdentifier": "t_enum$_TokenType_$2607",
                                         "typeString": "enum TokenTracker.TokenType"
                                       },
                                       {
@@ -44431,18 +46560,18 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1432,
+                                    "id": 1852,
                                     "name": "_untrackToken",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2876,
-                                    "src": "14997:13:0",
+                                    "referencedDeclaration": 3307,
+                                    "src": "15421:13:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$returns$__$",
+                                      "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                                       "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                                     }
                                   },
-                                  "id": 1436,
+                                  "id": 1856,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -44450,16 +46579,16 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "14997:50:0",
+                                  "src": "15421:50:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_tuple$__$",
                                     "typeString": "tuple()"
                                   }
                                 },
-                                "id": 1437,
+                                "id": 1857,
                                 "nodeType": "ExpressionStatement",
-                                "src": "14997:50:0"
+                                "src": "15421:50:6"
                               }
                             ]
                           }
@@ -44467,13 +46596,13 @@
                       ]
                     }
                   },
-                  "id": 1502,
+                  "id": 1922,
                   "nodeType": "IfStatement",
-                  "src": "14670:1021:0",
+                  "src": "15094:1021:6",
                   "trueBody": {
-                    "id": 1423,
+                    "id": 1843,
                     "nodeType": "Block",
-                    "src": "14712:182:0",
+                    "src": "15136:182:6",
                     "statements": [
                       {
                         "condition": {
@@ -44481,32 +46610,32 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
-                          "id": 1409,
+                          "id": 1829,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
                             "expression": {
-                              "id": 1406,
+                              "id": 1826,
                               "name": "data",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 1360,
-                              "src": "14730:4:0",
+                              "referencedDeclaration": 1765,
+                              "src": "15154:4:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_calldata_ptr",
                                 "typeString": "bytes calldata"
                               }
                             },
-                            "id": 1407,
+                            "id": 1827,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "14730:11:0",
+                            "src": "15154:11:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -44516,65 +46645,65 @@
                           "operator": ">",
                           "rightExpression": {
                             "hexValue": "30",
-                            "id": 1408,
+                            "id": 1828,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "14744:1:0",
+                            "src": "15168:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_0_by_1",
                               "typeString": "int_const 0"
                             },
                             "value": "0"
                           },
-                          "src": "14730:15:0",
+                          "src": "15154:15:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
                         "falseBody": {
-                          "id": 1421,
+                          "id": 1841,
                           "nodeType": "Block",
-                          "src": "14803:81:0",
+                          "src": "15227:81:6",
                           "statements": [
                             {
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 1416,
+                                    "id": 1836,
                                     "name": "tokenType",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1350,
-                                    "src": "14833:9:0",
+                                    "referencedDeclaration": 1755,
+                                    "src": "15257:9:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_enum$_TokenType_$2176",
+                                      "typeIdentifier": "t_enum$_TokenType_$2607",
                                       "typeString": "enum TokenTracker.TokenType"
                                     }
                                   },
                                   {
-                                    "id": 1417,
+                                    "id": 1837,
                                     "name": "contractAddress",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1352,
-                                    "src": "14844:15:0",
+                                    "referencedDeclaration": 1757,
+                                    "src": "15268:15:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_address",
                                       "typeString": "address"
                                     }
                                   },
                                   {
-                                    "id": 1418,
+                                    "id": 1838,
                                     "name": "tokenId",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1354,
-                                    "src": "14861:7:0",
+                                    "referencedDeclaration": 1759,
+                                    "src": "15285:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint256",
                                       "typeString": "uint256"
@@ -44584,7 +46713,7 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_enum$_TokenType_$2176",
+                                      "typeIdentifier": "t_enum$_TokenType_$2607",
                                       "typeString": "enum TokenTracker.TokenType"
                                     },
                                     {
@@ -44596,18 +46725,18 @@
                                       "typeString": "uint256"
                                     }
                                   ],
-                                  "id": 1415,
+                                  "id": 1835,
                                   "name": "_trackToken",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2658,
-                                  "src": "14821:11:0",
+                                  "referencedDeclaration": 3089,
+                                  "src": "15245:11:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$returns$__$",
+                                    "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                                     "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                                   }
                                 },
-                                "id": 1419,
+                                "id": 1839,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -44615,37 +46744,37 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "14821:48:0",
+                                "src": "15245:48:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_tuple$__$",
                                   "typeString": "tuple()"
                                 }
                               },
-                              "id": 1420,
+                              "id": 1840,
                               "nodeType": "ExpressionStatement",
-                              "src": "14821:48:0"
+                              "src": "15245:48:6"
                             }
                           ]
                         },
-                        "id": 1422,
+                        "id": 1842,
                         "nodeType": "IfStatement",
-                        "src": "14726:158:0",
+                        "src": "15150:158:6",
                         "trueBody": {
-                          "id": 1414,
+                          "id": 1834,
                           "nodeType": "Block",
-                          "src": "14747:50:0",
+                          "src": "15171:50:6",
                           "statements": [
                             {
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 1411,
+                                    "id": 1831,
                                     "name": "data",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1360,
-                                    "src": "14777:4:0",
+                                    "referencedDeclaration": 1765,
+                                    "src": "15201:4:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -44659,18 +46788,18 @@
                                       "typeString": "bytes calldata"
                                     }
                                   ],
-                                  "id": 1410,
+                                  "id": 1830,
                                   "name": "_multiTrack",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 3274,
-                                  "src": "14765:11:0",
+                                  "referencedDeclaration": 3705,
+                                  "src": "15189:11:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_calldata_ptr_$returns$__$",
                                     "typeString": "function (bytes calldata)"
                                   }
                                 },
-                                "id": 1412,
+                                "id": 1832,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -44678,16 +46807,16 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "14765:17:0",
+                                "src": "15189:17:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_tuple$__$",
                                   "typeString": "tuple()"
                                 }
                               },
-                              "id": 1413,
+                              "id": 1833,
                               "nodeType": "ExpressionStatement",
-                              "src": "14765:17:0"
+                              "src": "15189:17:6"
                             }
                           ]
                         }
@@ -44698,26 +46827,26 @@
               ]
             },
             "functionSelector": "c34a6dad",
-            "id": 1504,
+            "id": 1924,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "reveal",
-            "nameLocation": "13978:6:0",
+            "nameLocation": "14244:6:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 1361,
+              "id": 1766,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 1340,
+                  "id": 1745,
                   "mutability": "mutable",
                   "name": "neighbors",
-                  "nameLocation": "14004:9:0",
+                  "nameLocation": "14270:9:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "13985:28:0",
+                  "scope": 1924,
+                  "src": "14251:28:6",
                   "stateVariable": false,
                   "storageLocation": "calldata",
                   "typeDescriptions": {
@@ -44726,18 +46855,18 @@
                   },
                   "typeName": {
                     "baseType": {
-                      "id": 1338,
+                      "id": 1743,
                       "name": "bytes32",
                       "nodeType": "ElementaryTypeName",
-                      "src": "13985:7:0",
+                      "src": "14251:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bytes32",
                         "typeString": "bytes32"
                       }
                     },
-                    "id": 1339,
+                    "id": 1744,
                     "nodeType": "ArrayTypeName",
-                    "src": "13985:9:0",
+                    "src": "14251:9:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_bytes32_$dyn_storage_ptr",
                       "typeString": "bytes32[]"
@@ -44747,13 +46876,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1342,
+                  "id": 1747,
                   "mutability": "mutable",
                   "name": "indexWithNonce",
-                  "nameLocation": "14022:14:0",
+                  "nameLocation": "14288:14:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14015:21:0",
+                  "scope": 1924,
+                  "src": "14281:21:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -44761,10 +46890,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 1341,
+                    "id": 1746,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "14015:6:0",
+                    "src": "14281:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -44774,13 +46903,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1344,
+                  "id": 1749,
                   "mutability": "mutable",
                   "name": "eotp",
-                  "nameLocation": "14046:4:0",
+                  "nameLocation": "14312:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14038:12:0",
+                  "scope": 1924,
+                  "src": "14304:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -44788,10 +46917,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 1343,
+                    "id": 1748,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "14038:7:0",
+                    "src": "14304:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -44801,33 +46930,33 @@
                 },
                 {
                   "constant": false,
-                  "id": 1347,
+                  "id": 1752,
                   "mutability": "mutable",
                   "name": "operationType",
-                  "nameLocation": "14074:13:0",
+                  "nameLocation": "14340:13:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14060:27:0",
+                  "scope": 1924,
+                  "src": "14326:27:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_OperationType_$103",
+                    "typeIdentifier": "t_enum$_OperationType_$493",
                     "typeString": "enum ONEWallet.OperationType"
                   },
                   "typeName": {
-                    "id": 1346,
+                    "id": 1751,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 1345,
+                      "id": 1750,
                       "name": "OperationType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 103,
-                      "src": "14060:13:0"
+                      "referencedDeclaration": 493,
+                      "src": "14326:13:6"
                     },
-                    "referencedDeclaration": 103,
-                    "src": "14060:13:0",
+                    "referencedDeclaration": 493,
+                    "src": "14326:13:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_OperationType_$103",
+                      "typeIdentifier": "t_enum$_OperationType_$493",
                       "typeString": "enum ONEWallet.OperationType"
                     }
                   },
@@ -44835,33 +46964,33 @@
                 },
                 {
                   "constant": false,
-                  "id": 1350,
+                  "id": 1755,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "14099:9:0",
+                  "nameLocation": "14365:9:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14089:19:0",
+                  "scope": 1924,
+                  "src": "14355:19:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2176",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 1349,
+                    "id": 1754,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 1348,
+                      "id": 1753,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2176,
-                      "src": "14089:9:0"
+                      "referencedDeclaration": 2607,
+                      "src": "14355:9:6"
                     },
-                    "referencedDeclaration": 2176,
-                    "src": "14089:9:0",
+                    "referencedDeclaration": 2607,
+                    "src": "14355:9:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2176",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -44869,13 +46998,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1352,
+                  "id": 1757,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "14118:15:0",
+                  "nameLocation": "14384:15:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14110:23:0",
+                  "scope": 1924,
+                  "src": "14376:23:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -44883,10 +47012,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 1351,
+                    "id": 1756,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "14110:7:0",
+                    "src": "14376:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -44897,13 +47026,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1354,
+                  "id": 1759,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "14143:7:0",
+                  "nameLocation": "14409:7:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14135:15:0",
+                  "scope": 1924,
+                  "src": "14401:15:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -44911,10 +47040,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 1353,
+                    "id": 1758,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "14135:7:0",
+                    "src": "14401:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -44924,13 +47053,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1356,
+                  "id": 1761,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "14168:4:0",
+                  "nameLocation": "14434:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14152:20:0",
+                  "scope": 1924,
+                  "src": "14418:20:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -44938,10 +47067,10 @@
                     "typeString": "address payable"
                   },
                   "typeName": {
-                    "id": 1355,
+                    "id": 1760,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "14152:15:0",
+                    "src": "14418:15:6",
                     "stateMutability": "payable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address_payable",
@@ -44952,13 +47081,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1358,
+                  "id": 1763,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "14182:6:0",
+                  "nameLocation": "14448:6:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14174:14:0",
+                  "scope": 1924,
+                  "src": "14440:14:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -44966,10 +47095,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 1357,
+                    "id": 1762,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "14174:7:0",
+                    "src": "14440:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -44979,13 +47108,13 @@
                 },
                 {
                   "constant": false,
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@@ -45005,25 +47134,25 @@
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@@ -45033,32 +47162,32 @@
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@@ -45071,18 +47200,18 @@
                             "typeIdentifier": "t_uint8",
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@@ -45092,27 +47221,27 @@
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@@ -45120,14 +47249,14 @@
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@@ -45146,7 +47275,7 @@
                           "typeString": "literal_string \"Not enough neighbors provided\""
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@@ -45200,10 +47329,10 @@
                         "typeString": "bytes32"
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                         "name": "bytes32",
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@@ -45212,18 +47341,18 @@
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@@ -45238,39 +47367,39 @@
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                               "typeString": "type(bytes storage pointer)"
                             },
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                           "memberName": "concat",
                           "nodeType": "MemberAccess",
-                          "src": "16037:12:0",
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                           "typeDescriptions": {
                             "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                             "typeString": "function () pure returns (bytes memory)"
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@@ -45278,7 +47407,7 @@
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@@ -45293,18 +47422,18 @@
                           "typeString": "bytes memory"
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@@ -45320,13 +47449,144 @@
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+                          "typeString": "int_const 1"
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+                              "typeString": "bytes32"
+                            }
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+                              "typeString": "bytes32"
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+                            "typeString": "bytes32"
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@@ -45334,7 +47594,7 @@
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                             "typeString": "uint32"
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@@ -45346,18 +47606,18 @@
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@@ -45367,35 +47627,35 @@
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                                     "typeString": "int_const 1"
                                   },
                                   "value": "0x01"
                                 },
-                                "src": "16124:15:0",
+                                "src": "16664:15:6",
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                                   "typeString": "uint32"
                                 }
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@@ -45405,45 +47665,45 @@
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                               "typeString": "int_const 1"
                             },
                             "value": "0x01"
                           },
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                             "typeString": "bool"
                           }
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                                     "typeString": "bytes32"
@@ -45456,12 +47716,12 @@
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@@ -45469,25 +47729,25 @@
                                         },
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                                               "typeString": "bytes32[] calldata"
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@@ -45498,7 +47758,7 @@
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@@ -45517,39 +47777,39 @@
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+                                      "id": 2007,
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@@ -45557,7 +47817,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "16259:29:0",
+                                      "src": "16799:29:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes_memory_ptr",
@@ -45572,18 +47832,18 @@
                                         "typeString": "bytes memory"
                                       }
                                     ],
-                                    "id": 1568,
+                                    "id": 1999,
                                     "name": "sha256",
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                                     "referencedDeclaration": 4294967274,
-                                    "src": "16252:6:0",
+                                    "src": "16792:6:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_sha256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                       "typeString": "function (bytes memory) pure returns (bytes32)"
                                     }
                                   },
-                                  "id": 1577,
+                                  "id": 2008,
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@@ -45591,47 +47851,47 @@
                                   "lValueRequested": false,
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                                   "nodeType": "FunctionCall",
-                                  "src": "16252:37:0",
+                                  "src": "16792:37:6",
                                   "tryCall": false,
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                                     "typeIdentifier": "t_bytes32",
                                     "typeString": "bytes32"
                                   }
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-                                "src": "16248:41:0",
+                                "src": "16788:41:6",
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                                   "typeString": "bytes32"
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+                              "id": 2010,
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+                              "src": "16788:41:6"
                             }
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+                        "id": 2012,
                         "nodeType": "IfStatement",
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+                        "src": "16659:185:6",
                         "trueBody": {
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+                          "src": "16690:74:6",
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+                                  "src": "16708:1:6",
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@@ -45645,25 +47905,25 @@
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                                               "typeString": "bytes32[] calldata"
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+                                            "src": "16742:1:6",
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@@ -45674,19 +47934,19 @@
                                           "isPure": false,
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                                           "nodeType": "IndexAccess",
-                                          "src": "16192:12:0",
+                                          "src": "16732:12:6",
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                                             "typeString": "bytes32"
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@@ -45705,39 +47965,39 @@
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-                                        "src": "16179:12:0",
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                                           "typeString": "function () pure returns (bytes memory)"
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@@ -45745,7 +48005,7 @@
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@@ -45760,18 +48020,18 @@
                                         "typeString": "bytes memory"
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                                       "typeString": "function (bytes memory) pure returns (bytes32)"
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@@ -45779,40 +48039,40 @@
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                                     "typeString": "bytes32"
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-                                "src": "16168:41:0",
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                                   "typeString": "bytes32"
                                 }
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                         "expression": {
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                             "name": "position",
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@@ -45822,29 +48082,29 @@
                           "operator": ">>=",
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-                            "src": "16330:1:0",
+                            "src": "16870:1:6",
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                               "typeString": "int_const 1"
                             },
                             "value": "1"
                           },
-                          "src": "16317:14:0",
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                           "typeDescriptions": {
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                             "typeString": "uint32"
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@@ -45853,18 +48113,18 @@
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@@ -45877,18 +48137,18 @@
                         "typeIdentifier": "t_uint8",
                         "typeString": "uint8"
                       },
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                         "name": "height",
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-                        "src": "16088:6:0",
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                           "typeString": "uint8"
@@ -45898,47 +48158,47 @@
                       "operator": "-",
                       "rightExpression": {
                         "hexValue": "31",
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                         "kind": "number",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "16097:1:0",
+                        "src": "16637:1:6",
                         "typeDescriptions": {
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                           "typeString": "int_const 1"
                         },
                         "value": "1"
                       },
-                      "src": "16088:10:0",
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                         "typeString": "uint8"
                       }
                     },
-                    "src": "16084:14:0",
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+                      1967
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                         "nodeType": "VariableDeclaration",
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+                        "scope": 2018,
+                        "src": "16611:7:6",
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@@ -45946,10 +48206,10 @@
                           "typeString": "uint8"
                         },
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+                          "id": 1966,
                           "name": "uint8",
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@@ -45958,17 +48218,17 @@
                         "visibility": "internal"
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                         "typeString": "int_const 0"
@@ -45976,11 +48236,11 @@
                       "value": "0"
                     },
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@@ -45988,14 +48248,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "16100:3:0",
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-                        "src": "16100:1:0",
+                        "referencedDeclaration": 1967,
+                        "src": "16640:1:6",
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                           "typeString": "uint8"
@@ -46006,12 +48266,12 @@
                         "typeString": "uint8"
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@@ -46021,18 +48281,18 @@
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         },
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                             "typeString": "bytes32"
@@ -46041,18 +48301,18 @@
                         "nodeType": "BinaryOperation",
                         "operator": "==",
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+                          "id": 2021,
                           "name": "h",
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                             "typeString": "bytes32"
                           }
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-                        "src": "16359:9:0",
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                         "typeDescriptions": {
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@@ -46060,14 +48320,14 @@
                       },
                       {
                         "hexValue": "50726f6f6620697320696e636f7272656374",
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                         "kind": "string",
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                         "nodeType": "Literal",
-                        "src": "16370:20:0",
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                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_5515ff285a2022327bc0ffdc690388a3a1d15360640a68caecd56fe24371f01a",
                           "typeString": "literal_string \"Proof is incorrect\""
@@ -46086,7 +48346,7 @@
                           "typeString": "literal_string \"Proof is incorrect\""
                         }
                       ],
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+                      "id": 2019,
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@@ -46094,13 +48354,13 @@
                         4294967278
                       ],
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                         "typeString": "function (bool,string memory) pure"
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@@ -46108,51 +48368,51 @@
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-              "src": "15703:118:0",
+              "src": "16127:118:6",
               "text": "This is just a wrapper around a modifier previously called `isCorrectProof`, to avoid \"Stack too deep\" error. Duh."
             },
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+            "id": 2028,
             "implemented": true,
             "kind": "function",
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             "name": "_isCorrectProof",
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@@ -46161,18 +48421,18 @@
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@@ -46182,13 +48442,13 @@
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@@ -46196,10 +48456,10 @@
                     "typeString": "uint32"
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@@ -46209,13 +48469,13 @@
                 },
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@@ -46223,10 +48483,10 @@
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@@ -46235,40 +48495,40 @@
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@@ -46276,10 +48536,10 @@
                         "typeString": "uint32"
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@@ -46288,17 +48548,17 @@
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@@ -46306,22 +48566,22 @@
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@@ -46329,10 +48589,10 @@
                         "typeString": "uint32"
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@@ -46341,30 +48601,30 @@
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@@ -46378,26 +48638,26 @@
                           "typeString": "uint256"
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@@ -46405,7 +48665,7 @@
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@@ -46413,28 +48673,28 @@
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@@ -46442,10 +48702,10 @@
                               "typeString": "bytes32"
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@@ -46454,28 +48714,28 @@
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@@ -46486,86 +48746,86 @@
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@@ -46576,14 +48836,14 @@
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@@ -46591,32 +48851,32 @@
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+                                "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
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@@ -46626,107 +48886,107 @@
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@@ -46738,19 +48998,19 @@
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@@ -46758,33 +49018,33 @@
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                                 "typeString": "uint32"
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@@ -46797,18 +49057,18 @@
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                                   "typeString": "uint32"
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@@ -46817,41 +49077,41 @@
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                                     "typeString": "uint32"
                                   }
                                 },
-                                "src": "18005:21:0",
+                                "src": "18545:21:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
                                 }
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-                              "src": "17990:36:0",
+                              "src": "18530:36:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bool",
                                 "typeString": "bool"
                               }
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+                            "id": 2088,
                             "nodeType": "IfStatement",
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+                            "src": "18526:80:6",
                             "trueBody": {
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+                              "id": 2087,
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+                              "src": "18568:38:6",
                               "statements": [
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+                                  "id": 2086,
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-                                  "src": "18046:5:0"
+                                  "src": "18586:5:6"
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@@ -46865,18 +49125,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
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                         "typeString": "uint32"
@@ -46886,40 +49146,40 @@
                     "operator": "<",
                     "rightExpression": {
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+                        "id": 2045,
                         "name": "commits",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 117,
-                        "src": "17176:7:0",
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+                        "src": "17716:7:6",
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                           "typeString": "bytes32[] storage ref"
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                       "memberName": "length",
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                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
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@@ -46927,14 +49187,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "17192:13:0",
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                         "name": "timelyIndex",
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                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1602,
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                         "typeDescriptions": {
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                           "typeString": "uint32"
@@ -46945,12 +49205,12 @@
                         "typeString": "uint32"
                       }
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                   },
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@@ -46958,18 +49218,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
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                         "typeString": "uint32"
@@ -46979,63 +49239,63 @@
                     "operator": "==",
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                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "18260:1:0",
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                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
                       },
                       "value": "0"
                     },
-                    "src": "18245:16:0",
+                    "src": "18785:16:6",
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                       "typeString": "bool"
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                     "statements": [
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+                        "functionReturnParameters": 2031,
+                        "id": 2095,
                         "nodeType": "Return",
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                       }
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                   }
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                         "assignments": [
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+                          2109
                         ],
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                             "mutability": "mutable",
                             "name": "hash",
-                            "nameLocation": "18578:4:0",
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                             "nodeType": "VariableDeclaration",
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@@ -47043,10 +49303,10 @@
                               "typeString": "bytes32"
                             },
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+                              "id": 2108,
                               "name": "bytes32",
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@@ -47055,28 +49315,28 @@
                             "visibility": "internal"
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                               "typeString": "bytes32[] storage ref"
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@@ -47087,86 +49347,86 @@
                           "isPure": false,
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                           "nodeType": "IndexAccess",
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+                          "src": "19125:10:6",
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                             "typeString": "bytes32"
                           }
                         },
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                             "name": "cc",
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                             "storageLocation": "storage",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit[]"
                             },
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+                                "src": "19149:6:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                                  "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                   "typeString": "struct ONEWallet.Commit"
                                 }
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+                              "src": "19149:8:6",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                                "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit[]"
                               }
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                             "visibility": "internal"
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                             "name": "commitLocker",
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                             "overloadedDeclarations": [],
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-                            "src": "18631:12:0",
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+                            "src": "19171:12:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$114_storage_$dyn_storage_$",
+                              "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                               "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
                             }
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                               "typeString": "bytes32"
@@ -47177,24 +49437,24 @@
                           "isPure": false,
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                           "nodeType": "IndexAccess",
-                          "src": "18631:18:0",
+                          "src": "19171:18:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage",
+                            "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                             "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
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+                        "src": "19149:40:6"
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@@ -47202,28 +49462,28 @@
                                 "nodeType": "UnaryOperation",
                                 "operator": "delete",
                                 "prefix": true,
-                                "src": "18720:12:0",
+                                "src": "19260:12:6",
                                 "subExpression": {
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+                                    "src": "19267:2:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                                      "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                       "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                                     }
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+                                    "src": "19270:1:6",
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@@ -47234,9 +49494,9 @@
                                   "isPure": false,
                                   "lValueRequested": true,
                                   "nodeType": "IndexAccess",
-                                  "src": "18727:5:0",
+                                  "src": "19267:5:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_struct$_Commit_$114_storage",
+                                    "typeIdentifier": "t_struct$_Commit_$504_storage",
                                     "typeString": "struct ONEWallet.Commit storage ref"
                                   }
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@@ -47245,9 +49505,9 @@
                                   "typeString": "tuple()"
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@@ -47256,18 +49516,18 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
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@@ -47277,51 +49537,51 @@
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+                              "id": 2128,
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                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                                "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
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                             "memberName": "length",
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+                            "src": "19226:9:6",
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                               "typeString": "uint256"
                             }
                           },
-                          "src": "18682:13:0",
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                             "typeString": "bool"
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@@ -47329,10 +49589,10 @@
                                 "typeString": "uint32"
                               },
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+                                "id": 2123,
                                 "name": "uint32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "18668:6:0",
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                                   "typeString": "uint32"
@@ -47341,17 +49601,17 @@
                               "visibility": "internal"
                             }
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+                          "id": 2126,
                           "initialValue": {
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                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "18679:1:0",
+                            "src": "19219:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_0_by_1",
                               "typeString": "int_const 0"
@@ -47359,11 +49619,11 @@
                             "value": "0"
                           },
                           "nodeType": "VariableDeclarationStatement",
-                          "src": "18668:12:0"
+                          "src": "19208:12:6"
                         },
                         "loopExpression": {
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@@ -47371,14 +49631,14 @@
                             "nodeType": "UnaryOperation",
                             "operator": "++",
                             "prefix": false,
-                            "src": "18697:3:0",
+                            "src": "19237:3:6",
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-                              "referencedDeclaration": 1693,
-                              "src": "18697:1:0",
+                              "referencedDeclaration": 2124,
+                              "src": "19237:1:6",
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                                 "typeString": "uint32"
@@ -47389,16 +49649,16 @@
                               "typeString": "uint32"
                             }
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@@ -47406,28 +49666,28 @@
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                           "prefix": true,
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+                              "src": "19307:12:6",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$114_storage_$dyn_storage_$",
+                                "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                                 "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
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@@ -47438,9 +49698,9 @@
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                             "nodeType": "IndexAccess",
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+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
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@@ -47449,9 +49709,9 @@
                             "typeString": "tuple()"
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@@ -47460,18 +49720,18 @@
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@@ -47480,38 +49740,38 @@
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                         "typeString": "uint32"
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@@ -47519,10 +49779,10 @@
                           "typeString": "uint32"
                         },
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@@ -47531,17 +49791,17 @@
                         "visibility": "internal"
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@@ -47549,11 +49809,11 @@
                       "value": "0"
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@@ -47561,14 +49821,14 @@
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                       "operator": "++",
                       "prefix": false,
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@@ -47579,27 +49839,27 @@
                         "typeString": "uint32"
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@@ -47607,10 +49867,10 @@
                         "typeString": "uint32"
                       },
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                         "name": "uint32",
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                           "typeString": "uint32"
@@ -47619,30 +49879,30 @@
                       "visibility": "internal"
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                           "name": "commits",
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                           "typeDescriptions": {
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                             "typeString": "bytes32[] storage ref"
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                         "memberName": "length",
                         "nodeType": "MemberAccess",
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                         "typeDescriptions": {
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                           "typeString": "uint256"
@@ -47656,26 +49916,26 @@
                           "typeString": "uint256"
                         }
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                         "typeString": "type(uint32)"
                       },
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                         "name": "uint32",
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@@ -47683,7 +49943,7 @@
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@@ -47691,57 +49951,57 @@
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                                   "nodeType": "Identifier",
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                                     "typeString": "bytes32[] storage ref"
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                                     "typeString": "uint32"
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@@ -47750,18 +50010,18 @@
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                                   "operator": "-",
                                   "rightExpression": {
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                                       "typeString": "uint32"
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@@ -47772,7 +50032,7 @@
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                                 "nodeType": "IndexAccess",
-                                "src": "19102:24:0",
+                                "src": "19642:24:6",
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                                   "typeString": "bytes32"
@@ -47782,25 +50042,25 @@
                               "operator": "=",
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                                     "typeString": "bytes32[] storage ref"
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@@ -47811,21 +50071,21 @@
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                                 "nodeType": "IndexAccess",
-                                "src": "19129:10:0",
+                                "src": "19669:10:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
                                 }
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-                              "src": "19102:37:0",
+                              "src": "19642:37:6",
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                                 "typeString": "bytes32"
                               }
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+                            "src": "19642:37:6"
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@@ -47836,18 +50096,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
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@@ -47856,38 +50116,38 @@
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                         "typeString": "uint32"
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-                    "src": "19055:7:0",
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                         "mutability": "mutable",
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+                        "scope": 2178,
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@@ -47895,10 +50155,10 @@
                           "typeString": "uint32"
                         },
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+                          "id": 2156,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
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                             "typeString": "uint32"
@@ -47907,25 +50167,25 @@
                         "visibility": "internal"
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                         "typeString": "uint32"
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@@ -47933,14 +50193,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
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@@ -47951,18 +50211,18 @@
                         "typeString": "uint32"
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@@ -47970,31 +50230,31 @@
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                             "memberName": "pop",
                             "nodeType": "MemberAccess",
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+                            "src": "19764:11:6",
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@@ -48002,16 +50262,16 @@
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@@ -48020,18 +50280,18 @@
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@@ -48040,38 +50300,38 @@
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@@ -48079,10 +50339,10 @@
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                           "name": "uint32",
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                             "typeString": "uint32"
@@ -48091,17 +50351,17 @@
                         "visibility": "internal"
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@@ -48109,11 +50369,11 @@
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@@ -48121,14 +50381,14 @@
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@@ -48139,51 +50399,51 @@
                         "typeString": "uint32"
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@@ -48191,7 +50451,7 @@
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@@ -48201,7 +50461,7 @@
                         "typeIdentifier": "t_uint32",
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@@ -48210,25 +50470,25 @@
                         "arguments": [
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                             "memberName": "timestamp",
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@@ -48242,26 +50502,26 @@
                               "typeString": "uint256"
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@@ -48269,7 +50529,7 @@
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@@ -48279,18 +50539,18 @@
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@@ -48299,50 +50559,50 @@
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                         "typeString": "uint32"
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             "name": "_isRevealTimely",
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@@ -48350,10 +50610,10 @@
                     "typeString": "uint32"
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@@ -48362,21 +50622,21 @@
                   "visibility": "internal"
                 }
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@@ -48384,10 +50644,10 @@
                     "typeString": "bool"
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                       "typeString": "bool"
@@ -48396,34 +50656,34 @@
                   "visibility": "internal"
                 }
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@@ -48431,10 +50691,10 @@
                         "typeString": "uint32"
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@@ -48443,24 +50703,24 @@
                       "visibility": "internal"
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@@ -48469,40 +50729,40 @@
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                         "typeString": "uint8"
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@@ -48510,10 +50770,10 @@
                         "typeString": "uint8"
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                           "typeString": "uint8"
@@ -48522,7 +50782,7 @@
                       "visibility": "internal"
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@@ -48530,18 +50790,18 @@
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
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@@ -48550,18 +50810,18 @@
                         "nodeType": "BinaryOperation",
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                             "typeString": "uint8"
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@@ -48575,26 +50835,26 @@
                           "typeString": "uint32"
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                         "typeString": "type(uint8)"
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@@ -48602,7 +50862,7 @@
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@@ -48610,79 +50870,79 @@
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                       "storageLocation": "storage",
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-                        "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                        "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                         "typeString": "struct ONEWallet.Commit[]"
                       },
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                           "typeDescriptions": {
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+                            "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                             "typeString": "struct ONEWallet.Commit"
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                         "typeDescriptions": {
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+                          "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                           "typeString": "struct ONEWallet.Commit[]"
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                       "typeDescriptions": {
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+                        "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                         "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
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@@ -48693,14 +50953,14 @@
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@@ -48710,32 +50970,32 @@
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                             "typeDescriptions": {
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+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
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@@ -48745,21 +51005,21 @@
                         "operator": ">",
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                             "typeString": "int_const 0"
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                           "value": "0"
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@@ -48767,14 +51027,14 @@
                       },
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                         "hexValue": "4e6f20636f6d6d697420666f756e64",
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                           "typeString": "literal_string \"No commit found\""
@@ -48793,7 +51053,7 @@
                           "typeString": "literal_string \"No commit found\""
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@@ -48801,13 +51061,13 @@
                         4294967278
                       ],
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@@ -48815,85 +51075,85 @@
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+                              "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                               "typeString": "struct ONEWallet.Commit"
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+                                "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
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+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
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@@ -48904,29 +51164,29 @@
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@@ -48934,10 +51194,10 @@
                               "typeString": "bytes32"
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@@ -48946,45 +51206,45 @@
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@@ -49093,33 +51353,33 @@
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@@ -49128,35 +51388,35 @@
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@@ -49169,33 +51429,33 @@
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+                                    "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                     "typeString": "struct ONEWallet.Commit storage pointer"
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@@ -49204,18 +51464,18 @@
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@@ -49223,14 +51483,14 @@
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@@ -49249,7 +51509,7 @@
                                 "typeString": "literal_string \"Parameter hash mismatch\""
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@@ -49257,13 +51517,13 @@
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@@ -49271,31 +51531,31 @@
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@@ -49303,10 +51563,10 @@
                               "typeString": "uint32"
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@@ -49315,13 +51575,13 @@
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@@ -49331,33 +51591,33 @@
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                       "nodeType": "MemberAccess",
-                      "src": "20247:9:0",
+                      "src": "20787:9:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "20243:13:0",
+                    "src": "20783:13:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 1922,
+                  "id": 2353,
                   "initializationExpression": {
                     "assignments": [
-                      1831
+                      2262
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 1831,
+                        "id": 2262,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "20236:1:0",
+                        "nameLocation": "20776:1:6",
                         "nodeType": "VariableDeclaration",
-                        "scope": 1922,
-                        "src": "20229:8:0",
+                        "scope": 2353,
+                        "src": "20769:8:6",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -50023,10 +52283,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 1830,
+                          "id": 2261,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "20229:6:0",
+                          "src": "20769:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -50035,17 +52295,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 1833,
+                    "id": 2264,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 1832,
+                      "id": 2263,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "20240:1:0",
+                      "src": "20780:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -50053,11 +52313,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "20229:12:0"
+                    "src": "20769:12:6"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 1839,
+                      "id": 2270,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -50065,14 +52325,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "20258:3:0",
+                      "src": "20798:3:6",
                       "subExpression": {
-                        "id": 1838,
+                        "id": 2269,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1831,
-                        "src": "20258:1:0",
+                        "referencedDeclaration": 2262,
+                        "src": "20798:1:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -50083,26 +52343,26 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 1840,
+                    "id": 2271,
                     "nodeType": "ExpressionStatement",
-                    "src": "20258:3:0"
+                    "src": "20798:3:6"
                   },
                   "nodeType": "ForStatement",
-                  "src": "20224:1209:0"
+                  "src": "20764:1209:6"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
                         "hexValue": "4e6f2076616c696420636f6d6d6974",
-                        "id": 1924,
+                        "id": 2355,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "21449:17:0",
+                        "src": "21989:17:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_c3972966c6b890cd04bd250ec8fd05d1950759334a3d8fa4e9bb3d0693e9952d",
                           "typeString": "literal_string \"No valid commit\""
@@ -50117,7 +52377,7 @@
                           "typeString": "literal_string \"No valid commit\""
                         }
                       ],
-                      "id": 1923,
+                      "id": 2354,
                       "name": "revert",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
@@ -50125,13 +52385,13 @@
                         4294967277
                       ],
                       "referencedDeclaration": 4294967277,
-                      "src": "21442:6:0",
+                      "src": "21982:6:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_revert_pure$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (string memory) pure"
                       }
                     },
-                    "id": 1925,
+                    "id": 2356,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -50139,45 +52399,45 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "21442:25:0",
+                    "src": "21982:25:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 1926,
+                  "id": 2357,
                   "nodeType": "ExpressionStatement",
-                  "src": "21442:25:0"
+                  "src": "21982:25:6"
                 }
               ]
             },
             "documentation": {
-              "id": 1785,
+              "id": 2216,
               "nodeType": "StructuredDocumentation",
-              "src": "19566:275:0",
+              "src": "20106:275:6",
               "text": "This function verifies that the first valid entry with respect to the given `eotp` in `commitLocker[hash]` matches the provided `paramsHash` and `verificationHash`. An entry is valid with respect to `eotp` iff `h3(entry.paramsHash . eotp)` equals `entry.verificationHash`"
             },
-            "id": 1928,
+            "id": 2359,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_verifyReveal",
-            "nameLocation": "19855:13:0",
+            "nameLocation": "20395:13:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 1794,
+              "id": 2225,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 1787,
+                  "id": 2218,
                   "mutability": "mutable",
                   "name": "hash",
-                  "nameLocation": "19877:4:0",
+                  "nameLocation": "20417:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1928,
-                  "src": "19869:12:0",
+                  "scope": 2359,
+                  "src": "20409:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -50185,10 +52445,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 1786,
+                    "id": 2217,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "19869:7:0",
+                    "src": "20409:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -50198,13 +52458,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1789,
+                  "id": 2220,
                   "mutability": "mutable",
                   "name": "indexWithNonce",
-                  "nameLocation": "19890:14:0",
+                  "nameLocation": "20430:14:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1928,
-                  "src": "19883:21:0",
+                  "scope": 2359,
+                  "src": "20423:21:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -50212,10 +52472,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 1788,
+                    "id": 2219,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "19883:6:0",
+                    "src": "20423:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -50225,13 +52485,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1791,
+                  "id": 2222,
                   "mutability": "mutable",
                   "name": "paramsHash",
-                  "nameLocation": "19914:10:0",
+                  "nameLocation": "20454:10:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1928,
-                  "src": "19906:18:0",
+                  "scope": 2359,
+                  "src": "20446:18:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -50239,10 +52499,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 1790,
+                    "id": 2221,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "19906:7:0",
+                    "src": "20446:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -50252,13 +52512,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1793,
+                  "id": 2224,
                   "mutability": "mutable",
                   "name": "eotp",
-                  "nameLocation": "19934:4:0",
+                  "nameLocation": "20474:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1928,
-                  "src": "19926:12:0",
+                  "scope": 2359,
+                  "src": "20466:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -50266,10 +52526,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 1792,
+                    "id": 2223,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "19926:7:0",
+                    "src": "20466:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -50278,21 +52538,21 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "19868:71:0"
+              "src": "20408:71:6"
             },
             "returnParameters": {
-              "id": 1797,
+              "id": 2228,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 1796,
+                  "id": 2227,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1928,
-                  "src": "19963:6:0",
+                  "scope": 2359,
+                  "src": "20503:6:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -50300,10 +52560,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 1795,
+                    "id": 2226,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "19963:6:0",
+                    "src": "20503:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -50312,91 +52572,91 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "19962:8:0"
+              "src": "20502:8:6"
             },
-            "scope": 2161,
-            "src": "19846:1628:0",
+            "scope": 2592,
+            "src": "20386:1628:6",
             "stateMutability": "view",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 2000,
+              "id": 2431,
               "nodeType": "Block",
-              "src": "21554:464:0",
+              "src": "22094:464:6",
               "statements": [
                 {
                   "assignments": [
-                    1939
+                    2370
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 1939,
+                      "id": 2370,
                       "mutability": "mutable",
                       "name": "cc",
-                      "nameLocation": "21581:2:0",
+                      "nameLocation": "22121:2:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2000,
-                      "src": "21564:19:0",
+                      "scope": 2431,
+                      "src": "22104:19:6",
                       "stateVariable": false,
                       "storageLocation": "storage",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                        "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                         "typeString": "struct ONEWallet.Commit[]"
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 1937,
+                          "id": 2368,
                           "nodeType": "UserDefinedTypeName",
                           "pathNode": {
-                            "id": 1936,
+                            "id": 2367,
                             "name": "Commit",
                             "nodeType": "IdentifierPath",
-                            "referencedDeclaration": 114,
-                            "src": "21564:6:0"
+                            "referencedDeclaration": 504,
+                            "src": "22104:6:6"
                           },
-                          "referencedDeclaration": 114,
-                          "src": "21564:6:0",
+                          "referencedDeclaration": 504,
+                          "src": "22104:6:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                            "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                             "typeString": "struct ONEWallet.Commit"
                           }
                         },
-                        "id": 1938,
+                        "id": 2369,
                         "nodeType": "ArrayTypeName",
-                        "src": "21564:8:0",
+                        "src": "22104:8:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                          "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                           "typeString": "struct ONEWallet.Commit[]"
                         }
                       },
                       "visibility": "internal"
                     }
                   ],
-                  "id": 1943,
+                  "id": 2374,
                   "initialValue": {
                     "baseExpression": {
-                      "id": 1940,
+                      "id": 2371,
                       "name": "commitLocker",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 123,
-                      "src": "21586:12:0",
+                      "referencedDeclaration": 513,
+                      "src": "22126:12:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$114_storage_$dyn_storage_$",
+                        "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                         "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
                       }
                     },
-                    "id": 1942,
+                    "id": 2373,
                     "indexExpression": {
-                      "id": 1941,
+                      "id": 2372,
                       "name": "commitHash",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1930,
-                      "src": "21599:10:0",
+                      "referencedDeclaration": 2361,
+                      "src": "22139:10:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bytes32",
                         "typeString": "bytes32"
@@ -50407,14 +52667,14 @@
                     "isPure": false,
                     "lValueRequested": false,
                     "nodeType": "IndexAccess",
-                    "src": "21586:24:0",
+                    "src": "22126:24:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage",
+                      "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                       "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "21564:46:0"
+                  "src": "22104:46:6"
                 },
                 {
                   "expression": {
@@ -50424,32 +52684,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 1948,
+                        "id": 2379,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 1945,
+                            "id": 2376,
                             "name": "cc",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1939,
-                            "src": "21628:2:0",
+                            "referencedDeclaration": 2370,
+                            "src": "22168:2:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                             }
                           },
-                          "id": 1946,
+                          "id": 2377,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "21628:9:0",
+                          "src": "22168:9:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -50459,21 +52719,21 @@
                         "operator": ">",
                         "rightExpression": {
                           "hexValue": "30",
-                          "id": 1947,
+                          "id": 2378,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "number",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "21640:1:0",
+                          "src": "22180:1:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_rational_0_by_1",
                             "typeString": "int_const 0"
                           },
                           "value": "0"
                         },
-                        "src": "21628:13:0",
+                        "src": "22168:13:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -50481,14 +52741,14 @@
                       },
                       {
                         "hexValue": "496e76616c696420636f6d6d69742068617368",
-                        "id": 1949,
+                        "id": 2380,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "21643:21:0",
+                        "src": "22183:21:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_8a9c0db4284cd81d8eaef3d877f21bcccab643ae503f9d63f7eb3ad5aacbe749",
                           "typeString": "literal_string \"Invalid commit hash\""
@@ -50507,7 +52767,7 @@
                           "typeString": "literal_string \"Invalid commit hash\""
                         }
                       ],
-                      "id": 1944,
+                      "id": 2375,
                       "name": "require",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
@@ -50515,13 +52775,13 @@
                         4294967278
                       ],
                       "referencedDeclaration": 4294967278,
-                      "src": "21620:7:0",
+                      "src": "22160:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (bool,string memory) pure"
                       }
                     },
-                    "id": 1950,
+                    "id": 2381,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -50529,16 +52789,16 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "21620:45:0",
+                    "src": "22160:45:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 1951,
+                  "id": 2382,
                   "nodeType": "ExpressionStatement",
-                  "src": "21620:45:0"
+                  "src": "22160:45:6"
                 },
                 {
                   "expression": {
@@ -50548,32 +52808,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 1956,
+                        "id": 2387,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 1953,
+                            "id": 2384,
                             "name": "cc",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1939,
-                            "src": "21683:2:0",
+                            "referencedDeclaration": 2370,
+                            "src": "22223:2:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                             }
                           },
-                          "id": 1954,
+                          "id": 2385,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "21683:9:0",
+                          "src": "22223:9:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -50582,18 +52842,18 @@
                         "nodeType": "BinaryOperation",
                         "operator": ">",
                         "rightExpression": {
-                          "id": 1955,
+                          "id": 2386,
                           "name": "commitIndex",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1932,
-                          "src": "21695:11:0",
+                          "referencedDeclaration": 2363,
+                          "src": "22235:11:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "src": "21683:23:0",
+                        "src": "22223:23:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -50601,14 +52861,14 @@
                       },
                       {
                         "hexValue": "496e76616c696420636f6d6d6974496e646578",
-                        "id": 1957,
+                        "id": 2388,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "21708:21:0",
+                        "src": "22248:21:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_dd8f27f99c8575d947c48310b46d36796c8df82285fc83fecd33510610055413",
                           "typeString": "literal_string \"Invalid commitIndex\""
@@ -50627,7 +52887,7 @@
                           "typeString": "literal_string \"Invalid commitIndex\""
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@@ -51293,10 +53553,10 @@
                         "typeString": "uint32"
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                         "name": "uint32",
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@@ -51305,13 +53565,13 @@
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@@ -51352,26 +53612,26 @@
                             "typeString": "uint256"
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@@ -51430,10 +53690,10 @@
                         "typeString": "uint32"
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@@ -51442,24 +53702,24 @@
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@@ -51509,10 +53769,10 @@
                         "typeString": "uint32"
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@@ -51539,7 +53799,7 @@
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@@ -51618,18 +53878,18 @@
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@@ -51638,50 +53898,50 @@
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@@ -51690,18 +53950,18 @@
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@@ -51710,30 +53970,30 @@
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@@ -51747,38 +54007,38 @@
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@@ -51786,7 +54046,7 @@
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@@ -51794,22 +54054,22 @@
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@@ -51817,10 +54077,10 @@
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@@ -51829,17 +54089,17 @@
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@@ -51847,28 +54107,28 @@
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@@ -51876,10 +54136,10 @@
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@@ -51888,28 +54148,28 @@
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@@ -51920,14 +54180,14 @@
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@@ -51935,18 +54195,18 @@
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@@ -51955,56 +54215,56 @@
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                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
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-                                    "src": "22884:13:0",
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                                       "typeString": "uint32[] memory"
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@@ -52015,7 +54275,7 @@
                                   "isPure": false,
                                   "lValueRequested": true,
                                   "nodeType": "IndexAccess",
-                                  "src": "22884:30:0",
+                                  "src": "23424:30:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint32",
                                     "typeString": "uint32"
@@ -52024,35 +54284,35 @@
                                 "nodeType": "Assignment",
                                 "operator": "=",
                                 "rightHandSide": {
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+                                  "id": 2512,
                                   "name": "index",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2064,
-                                  "src": "22917:5:0",
+                                  "referencedDeclaration": 2495,
+                                  "src": "23457:5:6",
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                                     "typeIdentifier": "t_uint32",
                                     "typeString": "uint32"
                                   }
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+                                "src": "23424:38:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
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@@ -52060,14 +54320,14 @@
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                                     "operator": "++",
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@@ -52078,25 +54338,25 @@
                                       "typeString": "uint32"
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@@ -52104,28 +54364,28 @@
                                 "nodeType": "UnaryOperation",
                                 "operator": "delete",
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+                                "src": "23365:20:6",
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-                                    "src": "22832:6:0",
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                                       "typeString": "mapping(uint32 => uint8)"
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@@ -52136,7 +54396,7 @@
                                   "isPure": false,
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                                   "nodeType": "IndexAccess",
-                                  "src": "22832:13:0",
+                                  "src": "23372:13:6",
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                                     "typeString": "uint8"
@@ -52147,9 +54407,9 @@
                                   "typeString": "tuple()"
                                 }
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@@ -52161,18 +54421,18 @@
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                       "typeString": "uint256"
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@@ -52182,51 +54442,51 @@
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                         "name": "nonceTracker",
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                         "overloadedDeclarations": [],
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+                        "src": "23241:12:6",
                         "typeDescriptions": {
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                           "typeString": "uint32[] storage ref"
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                       "memberName": "length",
                       "nodeType": "MemberAccess",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
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                         "stateVariable": false,
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@@ -52234,10 +54494,10 @@
                           "typeString": "uint8"
                         },
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+                          "id": 2483,
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                             "typeString": "uint8"
@@ -52246,17 +54506,17 @@
                         "visibility": "internal"
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                       "kind": "number",
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                       "nodeType": "Literal",
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                       "typeDescriptions": {
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                         "typeString": "int_const 0"
@@ -52264,11 +54524,11 @@
                       "value": "0"
                     },
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@@ -52276,14 +54536,14 @@
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                       "operator": "++",
                       "prefix": false,
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@@ -52294,27 +54554,27 @@
                         "typeString": "uint8"
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@@ -52323,18 +54583,18 @@
                       },
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                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
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                             "typeString": "uint32"
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                         "nodeType": "ArrayTypeName",
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                           "typeString": "uint32[]"
@@ -52343,16 +54603,16 @@
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                         "overloadedDeclarations": [],
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                           "typeString": "uint32"
@@ -52366,38 +54626,38 @@
                           "typeString": "uint32"
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                       "nodeType": "NewExpression",
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                         "typeString": "function (uint256) pure returns (uint32[] memory)"
                       },
                       "typeName": {
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+                          "id": 2528,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
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+                          "src": "23811:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
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                           "typeString": "uint32[]"
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@@ -52405,7 +54665,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "23267:29:0",
+                    "src": "23807:29:6",
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@@ -52413,42 +54673,42 @@
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-                              "src": "23364:12:0",
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                                 "typeString": "uint32[] memory"
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@@ -52459,7 +54719,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "23364:15:0",
+                            "src": "23904:15:6",
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                               "typeString": "uint32"
@@ -52469,25 +54729,25 @@
                           "operator": "=",
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                               "name": "nonZeroNonces",
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                               "overloadedDeclarations": [],
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                                 "typeString": "uint32[] memory"
                               }
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-                              "src": "23396:1:0",
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                                 "typeString": "uint8"
@@ -52498,21 +54758,21 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "23382:16:0",
+                            "src": "23922:16:6",
                             "typeDescriptions": {
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                               "typeString": "uint32"
                             }
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+                          "src": "23904:34:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
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+                        "id": 2551,
                         "nodeType": "ExpressionStatement",
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@@ -52521,18 +54781,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
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                         "typeString": "uint8"
@@ -52541,38 +54801,38 @@
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+                      "id": 2539,
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                         "typeString": "uint32"
                       }
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+                    "src": "23864:19:6",
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+                        "id": 2535,
                         "mutability": "mutable",
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                         "nodeType": "VariableDeclaration",
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+                        "scope": 2553,
+                        "src": "23851:7:6",
                         "stateVariable": false,
                         "storageLocation": "default",
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@@ -52580,10 +54840,10 @@
                           "typeString": "uint8"
                         },
                         "typeName": {
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+                          "id": 2534,
                           "name": "uint8",
                           "nodeType": "ElementaryTypeName",
-                          "src": "23311:5:0",
+                          "src": "23851:5:6",
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                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
@@ -52592,17 +54852,17 @@
                         "visibility": "internal"
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+                    "id": 2537,
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@@ -53172,52 +55432,52 @@
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                   "nodeType": "VariableDeclaration",
-                  "scope": 13,
-                  "src": "231:15:0",
+                  "scope": 400,
+                  "src": "231:15:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -53253,10 +55513,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 8,
+                    "id": 395,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "231:7:0",
+                    "src": "231:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -53266,14 +55526,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 11,
+                  "id": 398,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "256:4:0",
+                  "nameLocation": "256:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 13,
-                  "src": "248:12:0",
+                  "scope": 400,
+                  "src": "248:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -53281,10 +55541,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 10,
+                    "id": 397,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "248:7:0",
+                    "src": "248:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -53294,30 +55554,30 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "214:47:0"
+              "src": "214:47:6"
             },
-            "src": "192:70:0"
+            "src": "192:70:6"
           },
           {
             "anonymous": false,
-            "id": 23,
+            "id": 410,
             "name": "ExceedDailyLimit",
-            "nameLocation": "273:16:0",
+            "nameLocation": "273:16:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 22,
+              "id": 409,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 15,
+                  "id": 402,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "298:6:0",
+                  "nameLocation": "298:6:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 23,
-                  "src": "290:14:0",
+                  "scope": 410,
+                  "src": "290:14:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -53325,10 +55585,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 14,
+                    "id": 401,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "290:7:0",
+                    "src": "290:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -53338,14 +55598,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 17,
+                  "id": 404,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "limit",
-                  "nameLocation": "314:5:0",
+                  "nameLocation": "314:5:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 23,
-                  "src": "306:13:0",
+                  "scope": 410,
+                  "src": "306:13:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -53353,10 +55613,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 16,
+                    "id": 403,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "306:7:0",
+                    "src": "306:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -53366,14 +55626,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 19,
+                  "id": 406,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "current",
-                  "nameLocation": "329:7:0",
+                  "nameLocation": "329:7:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 23,
-                  "src": "321:15:0",
+                  "scope": 410,
+                  "src": "321:15:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -53381,10 +55641,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 18,
+                    "id": 405,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "321:7:0",
+                    "src": "321:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -53394,14 +55654,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 21,
+                  "id": 408,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "346:4:0",
+                  "nameLocation": "346:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 23,
-                  "src": "338:12:0",
+                  "scope": 410,
+                  "src": "338:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -53409,10 +55669,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 20,
+                    "id": 407,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "338:7:0",
+                    "src": "338:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -53422,30 +55682,30 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "289:62:0"
+              "src": "289:62:6"
             },
-            "src": "267:85:0"
+            "src": "267:85:6"
           },
           {
             "anonymous": false,
-            "id": 27,
+            "id": 414,
             "name": "UnknownTransferError",
-            "nameLocation": "363:20:0",
+            "nameLocation": "363:20:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 26,
+              "id": 413,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 25,
+                  "id": 412,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "392:4:0",
+                  "nameLocation": "392:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 27,
-                  "src": "384:12:0",
+                  "scope": 414,
+                  "src": "384:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -53453,10 +55713,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 24,
+                    "id": 411,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "384:7:0",
+                    "src": "384:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -53466,44 +55726,44 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "383:14:0"
+              "src": "383:14:6"
             },
-            "src": "357:41:0"
+            "src": "357:41:6"
           },
           {
             "anonymous": false,
-            "id": 29,
+            "id": 416,
             "name": "LastResortAddressNotSet",
-            "nameLocation": "409:23:0",
+            "nameLocation": "409:23:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 28,
+              "id": 415,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "432:2:0"
+              "src": "432:2:6"
             },
-            "src": "403:32:0"
+            "src": "403:32:6"
           },
           {
             "anonymous": false,
-            "id": 35,
+            "id": 422,
             "name": "PaymentReceived",
-            "nameLocation": "446:15:0",
+            "nameLocation": "446:15:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 34,
+              "id": 421,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 31,
+                  "id": 418,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "470:6:0",
+                  "nameLocation": "470:6:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 35,
-                  "src": "462:14:0",
+                  "scope": 422,
+                  "src": "462:14:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -53511,10 +55771,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 30,
+                    "id": 417,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "462:7:0",
+                    "src": "462:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -53524,14 +55784,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 33,
+                  "id": 420,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "from",
-                  "nameLocation": "486:4:0",
+                  "nameLocation": "486:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 35,
-                  "src": "478:12:0",
+                  "scope": 422,
+                  "src": "478:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -53539,10 +55799,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 32,
+                    "id": 419,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "478:7:0",
+                    "src": "478:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -53552,30 +55812,30 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "461:30:0"
+              "src": "461:30:6"
             },
-            "src": "440:52:0"
+            "src": "440:52:6"
           },
           {
             "anonymous": false,
-            "id": 41,
+            "id": 428,
             "name": "PaymentSent",
-            "nameLocation": "503:11:0",
+            "nameLocation": "503:11:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 40,
+              "id": 427,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 37,
+                  "id": 424,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "523:6:0",
+                  "nameLocation": "523:6:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 41,
-                  "src": "515:14:0",
+                  "scope": 428,
+                  "src": "515:14:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -53583,10 +55843,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 36,
+                    "id": 423,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "515:7:0",
+                    "src": "515:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -53596,14 +55856,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 39,
+                  "id": 426,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "539:4:0",
+                  "nameLocation": "539:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 41,
-                  "src": "531:12:0",
+                  "scope": 428,
+                  "src": "531:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -53611,10 +55871,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 38,
+                    "id": 425,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "531:7:0",
+                    "src": "531:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -53624,30 +55884,30 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "514:30:0"
+              "src": "514:30:6"
             },
-            "src": "497:48:0"
+            "src": "497:48:6"
           },
           {
             "anonymous": false,
-            "id": 45,
+            "id": 432,
             "name": "AutoRecoveryTriggered",
-            "nameLocation": "556:21:0",
+            "nameLocation": "556:21:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 44,
+              "id": 431,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 43,
+                  "id": 430,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "from",
-                  "nameLocation": "586:4:0",
+                  "nameLocation": "586:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 45,
-                  "src": "578:12:0",
+                  "scope": 432,
+                  "src": "578:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -53655,10 +55915,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 42,
+                    "id": 429,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "578:7:0",
+                    "src": "578:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -53668,39 +55928,39 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "577:14:0"
+              "src": "577:14:6"
             },
-            "src": "550:42:0"
+            "src": "550:42:6"
           },
           {
             "anonymous": false,
-            "id": 47,
+            "id": 434,
             "name": "RecoveryFailure",
-            "nameLocation": "603:15:0",
+            "nameLocation": "603:15:6",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 46,
+              "id": 433,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "618:2:0"
+              "src": "618:2:6"
             },
-            "src": "597:24:0"
+            "src": "597:24:6"
           },
           {
             "constant": false,
             "documentation": {
-              "id": 48,
+              "id": 435,
               "nodeType": "StructuredDocumentation",
-              "src": "627:271:0",
+              "src": "627:271:6",
               "text": "In future versions, it is planned that we may allow the user to extend the wallet's life through a function call. When that is implemented, the following variables may no longer be immutable, with the exception of root which shall serve as an identifier of the wallet"
             },
-            "id": 50,
+            "id": 437,
             "mutability": "immutable",
             "name": "root",
-            "nameLocation": "921:4:0",
+            "nameLocation": "921:4:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "903:22:0",
+            "scope": 2592,
+            "src": "903:22:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -53708,10 +55968,10 @@
               "typeString": "bytes32"
             },
             "typeName": {
-              "id": 49,
+              "id": 436,
               "name": "bytes32",
               "nodeType": "ElementaryTypeName",
-              "src": "903:7:0",
+              "src": "903:7:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_bytes32",
                 "typeString": "bytes32"
@@ -53721,13 +55981,13 @@
           },
           {
             "constant": false,
-            "id": 52,
+            "id": 439,
             "mutability": "immutable",
             "name": "height",
-            "nameLocation": "1185:6:0",
+            "nameLocation": "1185:6:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1169:22:0",
+            "scope": 2592,
+            "src": "1169:22:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -53735,10 +55995,10 @@
               "typeString": "uint8"
             },
             "typeName": {
-              "id": 51,
+              "id": 438,
               "name": "uint8",
               "nodeType": "ElementaryTypeName",
-              "src": "1169:5:0",
+              "src": "1169:5:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_uint8",
                 "typeString": "uint8"
@@ -53748,13 +56008,13 @@
           },
           {
             "constant": false,
-            "id": 54,
+            "id": 441,
             "mutability": "immutable",
             "name": "interval",
-            "nameLocation": "1284:8:0",
+            "nameLocation": "1284:8:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1268:24:0",
+            "scope": 2592,
+            "src": "1268:24:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -53762,10 +56022,10 @@
               "typeString": "uint8"
             },
             "typeName": {
-              "id": 53,
+              "id": 440,
               "name": "uint8",
               "nodeType": "ElementaryTypeName",
-              "src": "1268:5:0",
+              "src": "1268:5:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_uint8",
                 "typeString": "uint8"
@@ -53775,13 +56035,13 @@
           },
           {
             "constant": false,
-            "id": 56,
+            "id": 443,
             "mutability": "immutable",
             "name": "t0",
-            "nameLocation": "1357:2:0",
+            "nameLocation": "1357:2:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1340:19:0",
+            "scope": 2592,
+            "src": "1340:19:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -53789,10 +56049,10 @@
               "typeString": "uint32"
             },
             "typeName": {
-              "id": 55,
+              "id": 442,
               "name": "uint32",
               "nodeType": "ElementaryTypeName",
-              "src": "1340:6:0",
+              "src": "1340:6:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_uint32",
                 "typeString": "uint32"
@@ -53802,13 +56062,13 @@
           },
           {
             "constant": false,
-            "id": 58,
+            "id": 445,
             "mutability": "immutable",
             "name": "lifespan",
-            "nameLocation": "1440:8:0",
+            "nameLocation": "1440:8:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1423:25:0",
+            "scope": 2592,
+            "src": "1423:25:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -53816,10 +56076,10 @@
               "typeString": "uint32"
             },
             "typeName": {
-              "id": 57,
+              "id": 444,
               "name": "uint32",
               "nodeType": "ElementaryTypeName",
-              "src": "1423:6:0",
+              "src": "1423:6:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_uint32",
                 "typeString": "uint32"
@@ -53829,13 +56089,13 @@
           },
           {
             "constant": false,
-            "id": 60,
+            "id": 447,
             "mutability": "immutable",
             "name": "maxOperationsPerInterval",
-            "nameLocation": "1531:24:0",
+            "nameLocation": "1531:24:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1515:40:0",
+            "scope": 2592,
+            "src": "1515:40:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -53843,10 +56103,10 @@
               "typeString": "uint8"
             },
             "typeName": {
-              "id": 59,
+              "id": 446,
               "name": "uint8",
               "nodeType": "ElementaryTypeName",
-              "src": "1515:5:0",
+              "src": "1515:5:6",
               "typeDescriptions": {
                 "typeIdentifier": "t_uint8",
                 "typeString": "uint8"
@@ -53854,21 +56114,48 @@
             },
             "visibility": "internal"
           },
+          {
+            "constant": false,
+            "id": 449,
+            "mutability": "immutable",
+            "name": "_numLeaves",
+            "nameLocation": "1727:10:6",
+            "nodeType": "VariableDeclaration",
+            "scope": 2592,
+            "src": "1710:27:6",
+            "stateVariable": true,
+            "storageLocation": "default",
+            "typeDescriptions": {
+              "typeIdentifier": "t_uint32",
+              "typeString": "uint32"
+            },
+            "typeName": {
+              "id": 448,
+              "name": "uint32",
+              "nodeType": "ElementaryTypeName",
+              "src": "1710:6:6",
+              "typeDescriptions": {
+                "typeIdentifier": "t_uint32",
+                "typeString": "uint32"
+              }
+            },
+            "visibility": "internal"
+          },
           {
             "constant": false,
             "documentation": {
-              "id": 61,
+              "id": 450,
               "nodeType": "StructuredDocumentation",
-              "src": "1711:28:0",
+              "src": "1765:28:6",
               "text": "global mutable variables"
             },
-            "id": 63,
+            "id": 452,
             "mutability": "mutable",
             "name": "lastResortAddress",
-            "nameLocation": "1760:17:0",
+            "nameLocation": "1814:17:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2161,
-            "src": "1744:33:0",
+            "scope": 2592,
+            "src": "1798:33:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -53876,10 +56163,10 @@
               "typeString": "address payable"
             },
             "typeName": {
-              "id": 62,
+              "id": 451,
               "name": "address",
               "nodeType": "ElementaryTypeName",
-              "src": "1744:15:0",
+              "src": "1798:15:6",
               "stateMutability": "payable",
               "typeDescriptions": {
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@@ -54539,18 +56833,18 @@
             },
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+                "id": 505,
                 "name": "bytes32",
                 "nodeType": "ElementaryTypeName",
-                "src": "3596:7:0",
+                "src": "3773:7:6",
                 "typeDescriptions": {
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                   "typeString": "bytes32"
                 }
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                 "typeIdentifier": "t_array$_t_bytes32_$dyn_storage_ptr",
                 "typeString": "bytes32[]"
@@ -54560,60 +56854,60 @@
           },
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             "constant": false,
-            "id": 123,
+            "id": 513,
             "mutability": "mutable",
             "name": "commitLocker",
-            "nameLocation": "3860:12:0",
+            "nameLocation": "4037:12:6",
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-            "src": "3831:41:0",
+            "scope": 2592,
+            "src": "4008:41:6",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
-              "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$114_storage_$dyn_storage_$",
+              "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
               "typeString": "mapping(bytes32 => struct ONEWallet.Commit[])"
             },
             "typeName": {
-              "id": 122,
+              "id": 512,
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-                "id": 118,
+                "id": 508,
                 "name": "bytes32",
                 "nodeType": "ElementaryTypeName",
-                "src": "3839:7:0",
+                "src": "4016:7:6",
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                   "typeIdentifier": "t_bytes32",
                   "typeString": "bytes32"
                 }
               },
               "nodeType": "Mapping",
-              "src": "3831:28:0",
+              "src": "4008:28:6",
               "typeDescriptions": {
-                "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$114_storage_$dyn_storage_$",
+                "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                 "typeString": "mapping(bytes32 => struct ONEWallet.Commit[])"
               },
               "valueType": {
                 "baseType": {
-                  "id": 120,
+                  "id": 510,
                   "nodeType": "UserDefinedTypeName",
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+                    "id": 509,
                     "name": "Commit",
                     "nodeType": "IdentifierPath",
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-                    "src": "3850:6:0"
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+                    "src": "4027:6:6"
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-                  "src": "3850:6:0",
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+                  "src": "4027:6:6",
                   "typeDescriptions": {
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+                    "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                     "typeString": "struct ONEWallet.Commit"
                   }
                 },
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+                "id": 511,
                 "nodeType": "ArrayTypeName",
-                "src": "3850:8:0",
+                "src": "4027:8:6",
                 "typeDescriptions": {
-                  "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                  "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                   "typeString": "struct ONEWallet.Commit[]"
                 }
               }
@@ -54622,24 +56916,24 @@
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+              "id": 576,
               "nodeType": "Block",
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               "statements": [
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-                      "src": "4081:4:0",
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                         "typeIdentifier": "t_bytes32",
                         "typeString": "bytes32"
@@ -54648,41 +56942,41 @@
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                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 125,
-                      "src": "4088:5:0",
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                         "typeIdentifier": "t_bytes32",
                         "typeString": "bytes32"
                       }
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-                    "src": "4081:12:0",
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                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
                     }
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-                      "src": "4103:6:0",
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                         "typeString": "uint8"
@@ -54691,41 +56985,41 @@
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+                      "id": 537,
                       "name": "height_",
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                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 127,
-                      "src": "4112:7:0",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_uint8",
                         "typeString": "uint8"
                       }
                     },
-                    "src": "4103:16:0",
+                    "src": "4280:16:6",
                     "typeDescriptions": {
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                       "typeString": "uint8"
                     }
                   },
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+                  "src": "4280:16:6"
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                     "leftHandSide": {
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-                      "referencedDeclaration": 54,
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@@ -54734,41 +57028,41 @@
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                       "name": "interval_",
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                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 129,
-                      "src": "4140:9:0",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_uint8",
                         "typeString": "uint8"
                       }
                     },
-                    "src": "4129:20:0",
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                     "typeDescriptions": {
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                       "typeString": "uint8"
                     }
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+                  "src": "4306:20:6"
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                     "leftHandSide": {
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-                      "src": "4159:2:0",
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                         "typeString": "uint32"
@@ -54777,41 +57071,41 @@
                     "nodeType": "Assignment",
                     "operator": "=",
                     "rightHandSide": {
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+                      "id": 545,
                       "name": "t0_",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 131,
-                      "src": "4164:3:0",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "4159:8:0",
+                    "src": "4336:8:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     }
                   },
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                     "lValueRequested": false,
                     "leftHandSide": {
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                       "name": "lifespan",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 58,
-                      "src": "4177:8:0",
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+                      "src": "4354:8:6",
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                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -54820,41 +57114,41 @@
                     "nodeType": "Assignment",
                     "operator": "=",
                     "rightHandSide": {
-                      "id": 159,
+                      "id": 549,
                       "name": "lifespan_",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 133,
-                      "src": "4188:9:0",
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+                      "src": "4365:9:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "4177:20:0",
+                    "src": "4354:20:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     }
                   },
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+                  "id": 551,
                   "nodeType": "ExpressionStatement",
-                  "src": "4177:20:0"
+                  "src": "4354:20:6"
                 },
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+                    "id": 554,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftHandSide": {
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+                      "id": 552,
                       "name": "lastResortAddress",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 63,
-                      "src": "4207:17:0",
+                      "referencedDeclaration": 452,
+                      "src": "4384:17:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address_payable",
                         "typeString": "address payable"
@@ -54863,41 +57157,41 @@
                     "nodeType": "Assignment",
                     "operator": "=",
                     "rightHandSide": {
-                      "id": 163,
+                      "id": 553,
                       "name": "lastResortAddress_",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 137,
-                      "src": "4227:18:0",
+                      "referencedDeclaration": 527,
+                      "src": "4404:18:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address_payable",
                         "typeString": "address payable"
                       }
                     },
-                    "src": "4207:38:0",
+                    "src": "4384:38:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address_payable",
                       "typeString": "address payable"
                     }
                   },
-                  "id": 165,
+                  "id": 555,
                   "nodeType": "ExpressionStatement",
-                  "src": "4207:38:0"
+                  "src": "4384:38:6"
                 },
                 {
                   "expression": {
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+                    "id": 558,
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                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftHandSide": {
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+                      "id": 556,
                       "name": "dailyLimit",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 65,
-                      "src": "4255:10:0",
+                      "referencedDeclaration": 454,
+                      "src": "4432:10:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
@@ -54906,41 +57200,41 @@
                     "nodeType": "Assignment",
                     "operator": "=",
                     "rightHandSide": {
-                      "id": 167,
+                      "id": 557,
                       "name": "dailyLimit_",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 139,
-                      "src": "4268:11:0",
+                      "referencedDeclaration": 529,
+                      "src": "4445:11:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "4255:24:0",
+                    "src": "4432:24:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     }
                   },
-                  "id": 169,
+                  "id": 559,
                   "nodeType": "ExpressionStatement",
-                  "src": "4255:24:0"
+                  "src": "4432:24:6"
                 },
                 {
                   "expression": {
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+                    "id": 562,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftHandSide": {
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+                      "id": 560,
                       "name": "maxOperationsPerInterval",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 60,
-                      "src": "4289:24:0",
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+                      "src": "4466:24:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint8",
                         "typeString": "uint8"
@@ -54949,30 +57243,201 @@
                     "nodeType": "Assignment",
                     "operator": "=",
                     "rightHandSide": {
-                      "id": 171,
+                      "id": 561,
                       "name": "maxOperationsPerInterval_",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 135,
-                      "src": "4316:25:0",
+                      "referencedDeclaration": 525,
+                      "src": "4493:25:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint8",
                         "typeString": "uint8"
                       }
                     },
-                    "src": "4289:52:0",
+                    "src": "4466:52:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint8",
                       "typeString": "uint8"
                     }
                   },
-                  "id": 173,
+                  "id": 563,
                   "nodeType": "ExpressionStatement",
-                  "src": "4289:52:0"
+                  "src": "4466:52:6"
+                },
+                {
+                  "expression": {
+                    "id": 574,
+                    "isConstant": false,
+                    "isLValue": false,
+                    "isPure": false,
+                    "lValueRequested": false,
+                    "leftHandSide": {
+                      "id": 564,
+                      "name": "_numLeaves",
+                      "nodeType": "Identifier",
+                      "overloadedDeclarations": [],
+                      "referencedDeclaration": 449,
+                      "src": "4528:10:6",
+                      "typeDescriptions": {
+                        "typeIdentifier": "t_uint32",
+                        "typeString": "uint32"
+                      }
+                    },
+                    "nodeType": "Assignment",
+                    "operator": "=",
+                    "rightHandSide": {
+                      "arguments": [
+                        {
+                          "commonType": {
+                            "typeIdentifier": "t_uint256",
+                            "typeString": "uint256"
+                          },
+                          "id": 572,
+                          "isConstant": false,
+                          "isLValue": false,
+                          "isPure": false,
+                          "lValueRequested": false,
+                          "leftExpression": {
+                            "hexValue": "32",
+                            "id": 567,
+                            "isConstant": false,
+                            "isLValue": false,
+                            "isPure": true,
+                            "kind": "number",
+                            "lValueRequested": false,
+                            "nodeType": "Literal",
+                            "src": "4548:1:6",
+                            "typeDescriptions": {
+                              "typeIdentifier": "t_rational_2_by_1",
+                              "typeString": "int_const 2"
+                            },
+                            "value": "2"
+                          },
+                          "nodeType": "BinaryOperation",
+                          "operator": "**",
+                          "rightExpression": {
+                            "components": [
+                              {
+                                "commonType": {
+                                  "typeIdentifier": "t_uint8",
+                                  "typeString": "uint8"
+                                },
+                                "id": 570,
+                                "isConstant": false,
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+                                "lValueRequested": false,
+                                "leftExpression": {
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+                                  "name": "height_",
+                                  "nodeType": "Identifier",
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+                                  "referencedDeclaration": 517,
+                                  "src": "4554:7:6",
+                                  "typeDescriptions": {
+                                    "typeIdentifier": "t_uint8",
+                                    "typeString": "uint8"
+                                  }
+                                },
+                                "nodeType": "BinaryOperation",
+                                "operator": "-",
+                                "rightExpression": {
+                                  "hexValue": "31",
+                                  "id": 569,
+                                  "isConstant": false,
+                                  "isLValue": false,
+                                  "isPure": true,
+                                  "kind": "number",
+                                  "lValueRequested": false,
+                                  "nodeType": "Literal",
+                                  "src": "4564:1:6",
+                                  "typeDescriptions": {
+                                    "typeIdentifier": "t_rational_1_by_1",
+                                    "typeString": "int_const 1"
+                                  },
+                                  "value": "1"
+                                },
+                                "src": "4554:11:6",
+                                "typeDescriptions": {
+                                  "typeIdentifier": "t_uint8",
+                                  "typeString": "uint8"
+                                }
+                              }
+                            ],
+                            "id": 571,
+                            "isConstant": false,
+                            "isInlineArray": false,
+                            "isLValue": false,
+                            "isPure": false,
+                            "lValueRequested": false,
+                            "nodeType": "TupleExpression",
+                            "src": "4553:13:6",
+                            "typeDescriptions": {
+                              "typeIdentifier": "t_uint8",
+                              "typeString": "uint8"
+                            }
+                          },
+                          "src": "4548:18:6",
+                          "typeDescriptions": {
+                            "typeIdentifier": "t_uint256",
+                            "typeString": "uint256"
+                          }
+                        }
+                      ],
+                      "expression": {
+                        "argumentTypes": [
+                          {
+                            "typeIdentifier": "t_uint256",
+                            "typeString": "uint256"
+                          }
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+                        "isPure": true,
+                        "lValueRequested": false,
+                        "nodeType": "ElementaryTypeNameExpression",
+                        "src": "4541:6:6",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_type$_t_uint32_$",
+                          "typeString": "type(uint32)"
+                        },
+                        "typeName": {
+                          "id": 565,
+                          "name": "uint32",
+                          "nodeType": "ElementaryTypeName",
+                          "src": "4541:6:6",
+                          "typeDescriptions": {}
+                        }
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+                      "isConstant": false,
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+                      "isPure": false,
+                      "kind": "typeConversion",
+                      "lValueRequested": false,
+                      "names": [],
+                      "nodeType": "FunctionCall",
+                      "src": "4541:26:6",
+                      "tryCall": false,
+                      "typeDescriptions": {
+                        "typeIdentifier": "t_uint32",
+                        "typeString": "uint32"
+                      }
+                    },
+                    "src": "4528:39:6",
+                    "typeDescriptions": {
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+                      "typeString": "uint32"
+                    }
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                 }
               ]
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             "implemented": true,
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@@ -54980,18 +57445,18 @@
             "nameLocation": "-1:-1:-1",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 140,
+              "id": 530,
               "nodeType": "ParameterList",
               "parameters": [
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                   "constant": false,
-                  "id": 125,
+                  "id": 515,
                   "mutability": "mutable",
                   "name": "root_",
-                  "nameLocation": "3900:5:0",
+                  "nameLocation": "4077:5:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 175,
-                  "src": "3892:13:0",
+                  "scope": 577,
+                  "src": "4069:13:6",
                   "stateVariable": false,
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@@ -54999,10 +57464,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 124,
+                    "id": 514,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3892:7:0",
+                    "src": "4069:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -55012,13 +57477,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 127,
+                  "id": 517,
                   "mutability": "mutable",
                   "name": "height_",
-                  "nameLocation": "3913:7:0",
+                  "nameLocation": "4090:7:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 175,
-                  "src": "3907:13:0",
+                  "scope": 577,
+                  "src": "4084:13:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -55026,10 +57491,10 @@
                     "typeString": "uint8"
                   },
                   "typeName": {
-                    "id": 126,
+                    "id": 516,
                     "name": "uint8",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3907:5:0",
+                    "src": "4084:5:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint8",
                       "typeString": "uint8"
@@ -55039,13 +57504,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 129,
+                  "id": 519,
                   "mutability": "mutable",
                   "name": "interval_",
-                  "nameLocation": "3928:9:0",
+                  "nameLocation": "4105:9:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 175,
-                  "src": "3922:15:0",
+                  "scope": 577,
+                  "src": "4099:15:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -55053,10 +57518,10 @@
                     "typeString": "uint8"
                   },
                   "typeName": {
-                    "id": 128,
+                    "id": 518,
                     "name": "uint8",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3922:5:0",
+                    "src": "4099:5:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint8",
                       "typeString": "uint8"
@@ -55066,13 +57531,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 131,
+                  "id": 521,
                   "mutability": "mutable",
                   "name": "t0_",
-                  "nameLocation": "3946:3:0",
+                  "nameLocation": "4123:3:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 175,
-                  "src": "3939:10:0",
+                  "scope": 577,
+                  "src": "4116:10:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -55080,10 +57545,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 130,
+                    "id": 520,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3939:6:0",
+                    "src": "4116:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -55093,13 +57558,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 133,
+                  "id": 523,
                   "mutability": "mutable",
                   "name": "lifespan_",
-                  "nameLocation": "3958:9:0",
+                  "nameLocation": "4135:9:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 175,
-                  "src": "3951:16:0",
+                  "scope": 577,
+                  "src": "4128:16:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -55107,10 +57572,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 132,
+                    "id": 522,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3951:6:0",
+                    "src": "4128:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -55120,13 +57585,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 135,
+                  "id": 525,
                   "mutability": "mutable",
                   "name": "maxOperationsPerInterval_",
-                  "nameLocation": "3975:25:0",
+                  "nameLocation": "4152:25:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 175,
-                  "src": "3969:31:0",
+                  "scope": 577,
+                  "src": "4146:31:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -55134,10 +57599,10 @@
                     "typeString": "uint8"
                   },
                   "typeName": {
-                    "id": 134,
+                    "id": 524,
                     "name": "uint8",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3969:5:0",
+                    "src": "4146:5:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint8",
                       "typeString": "uint8"
@@ -55147,13 +57612,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 137,
+                  "id": 527,
                   "mutability": "mutable",
                   "name": "lastResortAddress_",
-                  "nameLocation": "4026:18:0",
+                  "nameLocation": "4203:18:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 175,
-                  "src": "4010:34:0",
+                  "scope": 577,
+                  "src": "4187:34:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -55161,10 +57626,10 @@
                     "typeString": "address payable"
                   },
                   "typeName": {
-                    "id": 136,
+                    "id": 526,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "4010:15:0",
+                    "src": "4187:15:6",
                     "stateMutability": "payable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address_payable",
@@ -55175,13 +57640,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 139,
+                  "id": 529,
                   "mutability": "mutable",
                   "name": "dailyLimit_",
-                  "nameLocation": "4054:11:0",
+                  "nameLocation": "4231:11:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 175,
-                  "src": "4046:19:0",
+                  "scope": 577,
+                  "src": "4223:19:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -55189,10 +57654,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 138,
+                    "id": 528,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "4046:7:0",
+                    "src": "4223:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -55201,50 +57666,50 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "3891:175:0"
+              "src": "4068:175:6"
             },
             "returnParameters": {
-              "id": 141,
+              "id": 531,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "4071:0:0"
+              "src": "4248:0:6"
             },
-            "scope": 2161,
-            "src": "3880:468:0",
+            "scope": 2592,
+            "src": "4057:517:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "public"
           },
           {
             "body": {
-              "id": 228,
+              "id": 630,
               "nodeType": "Block",
-              "src": "4381:449:0",
+              "src": "4607:449:6",
               "statements": [
                 {
                   "eventCall": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 179,
+                          "id": 581,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "4412:3:0",
+                          "src": "4638:3:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_magic_message",
                             "typeString": "msg"
                           }
                         },
-                        "id": 180,
+                        "id": 582,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "value",
                         "nodeType": "MemberAccess",
-                        "src": "4412:9:0",
+                        "src": "4638:9:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -55252,25 +57717,25 @@
                       },
                       {
                         "expression": {
-                          "id": 181,
+                          "id": 583,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "4423:3:0",
+                          "src": "4649:3:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_magic_message",
                             "typeString": "msg"
                           }
                         },
-                        "id": 182,
+                        "id": 584,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "sender",
                         "nodeType": "MemberAccess",
-                        "src": "4423:10:0",
+                        "src": "4649:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
@@ -55288,18 +57753,18 @@
                           "typeString": "address"
                         }
                       ],
-                      "id": 178,
+                      "id": 580,
                       "name": "PaymentReceived",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 35,
-                      "src": "4396:15:0",
+                      "referencedDeclaration": 422,
+                      "src": "4622:15:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_event_nonpayable$_t_uint256_$_t_address_$returns$__$",
                         "typeString": "function (uint256,address)"
                       }
                     },
-                    "id": 183,
+                    "id": 585,
                     "isConstant": false,
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@@ -55307,16 +57772,16 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "4396:38:0",
+                    "src": "4622:38:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 184,
+                  "id": 586,
                   "nodeType": "EmitStatement",
-                  "src": "4391:43:0"
+                  "src": "4617:43:6"
                 },
                 {
                   "condition": {
@@ -55324,32 +57789,32 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 188,
+                    "id": 590,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
                       "expression": {
-                        "id": 185,
+                        "id": 587,
                         "name": "msg",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 4294967281,
-                        "src": "4448:3:0",
+                        "src": "4674:3:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_magic_message",
                           "typeString": "msg"
                         }
                       },
-                      "id": 186,
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                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "value",
                       "nodeType": "MemberAccess",
-                      "src": "4448:9:0",
+                      "src": "4674:9:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
@@ -55358,36 +57823,36 @@
                     "nodeType": "BinaryOperation",
                     "operator": "!=",
                     "rightExpression": {
-                      "id": 187,
+                      "id": 589,
                       "name": "AUTO_RECOVERY_TRIGGER_AMOUNT",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 86,
-                      "src": "4461:28:0",
+                      "referencedDeclaration": 475,
+                      "src": "4687:28:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "4448:41:0",
+                    "src": "4674:41:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 191,
+                  "id": 593,
                   "nodeType": "IfStatement",
-                  "src": "4444:78:0",
+                  "src": "4670:78:6",
                   "trueBody": {
-                    "id": 190,
+                    "id": 592,
                     "nodeType": "Block",
-                    "src": "4491:31:0",
+                    "src": "4717:31:6",
                     "statements": [
                       {
-                        "functionReturnParameters": 177,
-                        "id": 189,
+                        "functionReturnParameters": 579,
+                        "id": 591,
                         "nodeType": "Return",
-                        "src": "4505:7:0"
+                        "src": "4731:7:6"
                       }
                     ]
                   }
@@ -55398,32 +57863,32 @@
                       "typeIdentifier": "t_address",
                       "typeString": "address"
                     },
-                    "id": 195,
+                    "id": 597,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
                       "expression": {
-                        "id": 192,
+                        "id": 594,
                         "name": "msg",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 4294967281,
-                        "src": "4535:3:0",
+                        "src": "4761:3:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_magic_message",
                           "typeString": "msg"
                         }
                       },
-                      "id": 193,
+                      "id": 595,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "sender",
                       "nodeType": "MemberAccess",
-                      "src": "4535:10:0",
+                      "src": "4761:10:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address",
                         "typeString": "address"
@@ -55432,36 +57897,36 @@
                     "nodeType": "BinaryOperation",
                     "operator": "!=",
                     "rightExpression": {
-                      "id": 194,
+                      "id": 596,
                       "name": "lastResortAddress",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 63,
-                      "src": "4549:17:0",
+                      "referencedDeclaration": 452,
+                      "src": "4775:17:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address_payable",
                         "typeString": "address payable"
                       }
                     },
-                    "src": "4535:31:0",
+                    "src": "4761:31:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 198,
+                  "id": 600,
                   "nodeType": "IfStatement",
-                  "src": "4531:68:0",
+                  "src": "4757:68:6",
                   "trueBody": {
-                    "id": 197,
+                    "id": 599,
                     "nodeType": "Block",
-                    "src": "4568:31:0",
+                    "src": "4794:31:6",
                     "statements": [
                       {
-                        "functionReturnParameters": 177,
-                        "id": 196,
+                        "functionReturnParameters": 579,
+                        "id": 598,
                         "nodeType": "Return",
-                        "src": "4582:7:0"
+                        "src": "4808:7:6"
                       }
                     ]
                   }
@@ -55472,18 +57937,18 @@
                       "typeIdentifier": "t_address",
                       "typeString": "address"
                     },
-                    "id": 204,
+                    "id": 606,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 199,
+                      "id": 601,
                       "name": "lastResortAddress",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 63,
-                      "src": "4612:17:0",
+                      "referencedDeclaration": 452,
+                      "src": "4838:17:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address_payable",
                         "typeString": "address payable"
@@ -55495,14 +57960,14 @@
                       "arguments": [
                         {
                           "hexValue": "30",
-                          "id": 202,
+                          "id": 604,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "number",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "4641:1:0",
+                          "src": "4867:1:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_rational_0_by_1",
                             "typeString": "int_const 0"
@@ -55517,26 +57982,26 @@
                             "typeString": "int_const 0"
                           }
                         ],
-                        "id": 201,
+                        "id": 603,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "nodeType": "ElementaryTypeNameExpression",
-                        "src": "4633:7:0",
+                        "src": "4859:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_type$_t_address_$",
                           "typeString": "type(address)"
                         },
                         "typeName": {
-                          "id": 200,
+                          "id": 602,
                           "name": "address",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4633:7:0",
+                          "src": "4859:7:6",
                           "typeDescriptions": {}
                         }
                       },
-                      "id": 203,
+                      "id": 605,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
@@ -55544,32 +58009,32 @@
                       "lValueRequested": false,
                       "names": [],
                       "nodeType": "FunctionCall",
-                      "src": "4633:10:0",
+                      "src": "4859:10:6",
                       "tryCall": false,
                       "typeDescriptions": {
                         "typeIdentifier": "t_address",
                         "typeString": "address"
                       }
                     },
-                    "src": "4612:31:0",
+                    "src": "4838:31:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 207,
+                  "id": 609,
                   "nodeType": "IfStatement",
-                  "src": "4608:68:0",
+                  "src": "4834:68:6",
                   "trueBody": {
-                    "id": 206,
+                    "id": 608,
                     "nodeType": "Block",
-                    "src": "4645:31:0",
+                    "src": "4871:31:6",
                     "statements": [
                       {
-                        "functionReturnParameters": 177,
-                        "id": 205,
+                        "functionReturnParameters": 579,
+                        "id": 607,
                         "nodeType": "Return",
-                        "src": "4659:7:0"
+                        "src": "4885:7:6"
                       }
                     ]
                   }
@@ -55580,32 +58045,32 @@
                       "typeIdentifier": "t_address",
                       "typeString": "address"
                     },
-                    "id": 214,
+                    "id": 616,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
                       "expression": {
-                        "id": 208,
+                        "id": 610,
                         "name": "msg",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 4294967281,
-                        "src": "4689:3:0",
+                        "src": "4915:3:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_magic_message",
                           "typeString": "msg"
                         }
                       },
-                      "id": 209,
+                      "id": 611,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "sender",
                       "nodeType": "MemberAccess",
-                      "src": "4689:10:0",
+                      "src": "4915:10:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address",
                         "typeString": "address"
@@ -55616,14 +58081,14 @@
                     "rightExpression": {
                       "arguments": [
                         {
-                          "id": 212,
+                          "id": 614,
                           "name": "this",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967268,
-                          "src": "4711:4:0",
+                          "src": "4937:4:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                            "typeIdentifier": "t_contract$_ONEWallet_$2592",
                             "typeString": "contract ONEWallet"
                           }
                         }
@@ -55631,30 +58096,30 @@
                       "expression": {
                         "argumentTypes": [
                           {
-                            "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                            "typeIdentifier": "t_contract$_ONEWallet_$2592",
                             "typeString": "contract ONEWallet"
                           }
                         ],
-                        "id": 211,
+                        "id": 613,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "nodeType": "ElementaryTypeNameExpression",
-                        "src": "4703:7:0",
+                        "src": "4929:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_type$_t_address_$",
                           "typeString": "type(address)"
                         },
                         "typeName": {
-                          "id": 210,
+                          "id": 612,
                           "name": "address",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4703:7:0",
+                          "src": "4929:7:6",
                           "typeDescriptions": {}
                         }
                       },
-                      "id": 213,
+                      "id": 615,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -55662,32 +58127,32 @@
                       "lValueRequested": false,
                       "names": [],
                       "nodeType": "FunctionCall",
-                      "src": "4703:13:0",
+                      "src": "4929:13:6",
                       "tryCall": false,
                       "typeDescriptions": {
                         "typeIdentifier": "t_address",
                         "typeString": "address"
                       }
                     },
-                    "src": "4689:27:0",
+                    "src": "4915:27:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 217,
+                  "id": 619,
                   "nodeType": "IfStatement",
-                  "src": "4685:64:0",
+                  "src": "4911:64:6",
                   "trueBody": {
-                    "id": 216,
+                    "id": 618,
                     "nodeType": "Block",
-                    "src": "4718:31:0",
+                    "src": "4944:31:6",
                     "statements": [
                       {
-                        "functionReturnParameters": 177,
-                        "id": 215,
+                        "functionReturnParameters": 579,
+                        "id": 617,
                         "nodeType": "Return",
-                        "src": "4732:7:0"
+                        "src": "4958:7:6"
                       }
                     ]
                   }
@@ -55697,25 +58162,25 @@
                     "arguments": [
                       {
                         "expression": {
-                          "id": 219,
+                          "id": 621,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "4785:3:0",
+                          "src": "5011:3:6",
                           "typeDescriptions": {
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@@ -57431,18 +59896,18 @@
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                             "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
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+                        "src": "6410:46:6"
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                               "typeString": "uint32"
@@ -57772,25 +60237,25 @@
                             "arguments": [
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+                                  "id": 813,
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-                                  "referencedDeclaration": 401,
-                                  "src": "6265:2:0",
+                                  "referencedDeclaration": 803,
+                                  "src": "6491:2:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                                    "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                     "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                                   }
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                                 "memberName": "length",
                                 "nodeType": "MemberAccess",
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+                                "src": "6491:9:6",
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                                   "typeString": "uint256"
@@ -57804,26 +60269,26 @@
                                   "typeString": "uint256"
                                 }
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                               "nodeType": "ElementaryTypeNameExpression",
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+                              "src": "6484:6:6",
                               "typeDescriptions": {
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                                 "typeString": "type(uint32)"
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+                                "id": 811,
                                 "name": "uint32",
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+                                "src": "6484:6:6",
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@@ -57831,22 +60296,22 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "6258:17:0",
+                            "src": "6484:17:6",
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                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
                             }
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-                          "src": "6244:31:0",
+                          "src": "6470:31:6",
                           "typeDescriptions": {
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                             "typeString": "uint32"
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                         "nodeType": "ExpressionStatement",
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@@ -57855,18 +60320,18 @@
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                       "typeString": "uint256"
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@@ -57876,51 +60341,51 @@
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                         "name": "commits",
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                         "overloadedDeclarations": [],
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                           "typeString": "bytes32[] storage ref"
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                         "typeString": "uint256"
                       }
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                         "mutability": "mutable",
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@@ -57928,10 +60393,10 @@
                           "typeString": "uint32"
                         },
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+                          "id": 788,
                           "name": "uint32",
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                             "typeString": "uint32"
@@ -57940,17 +60405,17 @@
                         "visibility": "internal"
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                       "nodeType": "Literal",
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                         "typeString": "int_const 0"
@@ -57958,11 +60423,11 @@
                       "value": "0"
                     },
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@@ -57970,14 +60435,14 @@
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                       "operator": "++",
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                         "overloadedDeclarations": [],
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                           "typeString": "uint32"
@@ -57988,27 +60453,27 @@
                         "typeString": "uint32"
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@@ -58017,18 +60482,18 @@
                       },
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+                          "id": 822,
                           "name": "bytes32",
                           "nodeType": "ElementaryTypeName",
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                             "typeString": "bytes32"
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                         "nodeType": "ArrayTypeName",
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                           "typeString": "bytes32[]"
@@ -58037,16 +60502,16 @@
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                           "typeString": "uint32"
@@ -58060,38 +60525,38 @@
                           "typeString": "uint32"
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                       "nodeType": "NewExpression",
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                         "typeString": "function (uint256) pure returns (bytes32[] memory)"
                       },
                       "typeName": {
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+                          "id": 825,
                           "name": "bytes32",
                           "nodeType": "ElementaryTypeName",
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                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
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                         "nodeType": "ArrayTypeName",
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                           "typeString": "bytes32[]"
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@@ -58099,7 +60564,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
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@@ -58107,22 +60572,22 @@
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@@ -58131,18 +60596,18 @@
                       },
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                           "name": "bytes32",
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                             "typeString": "bytes32"
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                           "typeString": "bytes32[]"
@@ -58151,16 +60616,16 @@
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                           "typeString": "uint32"
@@ -58174,38 +60639,38 @@
                           "typeString": "uint32"
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                         "typeString": "function (uint256) pure returns (bytes32[] memory)"
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                       "typeName": {
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+                          "id": 836,
                           "name": "bytes32",
                           "nodeType": "ElementaryTypeName",
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                           "typeDescriptions": {
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                             "typeString": "bytes32"
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@@ -58213,7 +60678,7 @@
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@@ -58221,22 +60686,22 @@
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@@ -58245,18 +60710,18 @@
                       },
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                             "typeString": "bytes32"
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                           "typeString": "bytes32[]"
@@ -58265,16 +60730,16 @@
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@@ -58288,38 +60753,38 @@
                           "typeString": "uint32"
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                         "typeString": "function (uint256) pure returns (bytes32[] memory)"
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                             "typeString": "bytes32"
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@@ -58327,7 +60792,7 @@
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@@ -58335,22 +60800,22 @@
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@@ -58359,18 +60824,18 @@
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                             "typeString": "uint32"
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@@ -58379,16 +60844,16 @@
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@@ -58402,38 +60867,38 @@
                           "typeString": "uint32"
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                         "typeString": "function (uint256) pure returns (uint32[] memory)"
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                       "typeName": {
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                             "typeString": "uint32"
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@@ -58441,7 +60906,7 @@
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@@ -58449,22 +60914,22 @@
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@@ -58473,18 +60938,18 @@
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                             "typeString": "bool"
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@@ -58493,16 +60958,16 @@
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@@ -58516,38 +60981,38 @@
                           "typeString": "uint32"
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                         "typeString": "function (uint256) pure returns (bool[] memory)"
                       },
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                             "typeString": "bool"
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@@ -58555,7 +61020,7 @@
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                     "nodeType": "FunctionCall",
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@@ -58563,22 +61028,22 @@
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@@ -58586,10 +61051,10 @@
                         "typeString": "uint32"
                       },
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@@ -58598,17 +61063,17 @@
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@@ -58616,99 +61081,99 @@
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                             "storageLocation": "storage",
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+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit[]"
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+                              "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
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@@ -58719,7 +61184,7 @@
                             "isPure": false,
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                             "nodeType": "IndexAccess",
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@@ -58730,83 +61195,83 @@
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+                            "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                             "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
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+                                    "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                     "typeString": "struct ONEWallet.Commit"
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+                                    "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
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@@ -58817,43 +61282,43 @@
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@@ -58864,7 +61329,7 @@
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@@ -58874,69 +61339,69 @@
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+                                      "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                       "typeString": "struct ONEWallet.Commit storage pointer"
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                                     "typeString": "bytes32"
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                                       "typeString": "bytes32[] memory"
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@@ -58947,7 +61412,7 @@
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@@ -58957,69 +61422,69 @@
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+                                      "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
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@@ -59030,7 +61495,7 @@
                                   "isPure": false,
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                                   "nodeType": "IndexAccess",
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@@ -59040,69 +61505,69 @@
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+                                      "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                       "typeString": "struct ONEWallet.Commit storage pointer"
                                     }
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                                     "typeString": "bytes32"
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                                   "typeString": "bytes32"
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                                       "typeString": "uint32[] memory"
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@@ -59113,7 +61578,7 @@
                                   "isPure": false,
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                                   "nodeType": "IndexAccess",
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@@ -59123,69 +61588,69 @@
                                 "operator": "=",
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+                                    "src": "7260:1:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                                      "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                       "typeString": "struct ONEWallet.Commit storage pointer"
                                     }
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                                     "typeString": "uint32"
                                   }
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                                   "typeString": "uint32"
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                                       "typeString": "bool[] memory"
                                     }
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@@ -59196,7 +61661,7 @@
                                   "isPure": false,
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                                   "nodeType": "IndexAccess",
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@@ -59206,44 +61671,44 @@
                                 "operator": "=",
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                                     "typeDescriptions": {
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+                                      "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                       "typeString": "struct ONEWallet.Commit storage pointer"
                                     }
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                                     "typeString": "bool"
                                   }
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                                   "typeString": "bool"
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@@ -59251,14 +61716,14 @@
                                 "nodeType": "UnaryOperation",
                                 "operator": "++",
                                 "prefix": false,
-                                "src": "7111:7:0",
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@@ -59269,9 +61734,9 @@
                                   "typeString": "uint32"
                                 }
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@@ -59280,18 +61745,18 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
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                               "typeString": "uint32"
@@ -59301,51 +61766,51 @@
                           "operator": "<",
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                               "typeDescriptions": {
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+                                "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                               }
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                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "6783:9:0",
+                            "src": "7009:9:6",
                             "typeDescriptions": {
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                               "typeString": "uint256"
                             }
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                             "typeString": "bool"
                           }
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@@ -59353,10 +61818,10 @@
                                 "typeString": "uint32"
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@@ -59365,17 +61830,17 @@
                               "visibility": "internal"
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@@ -59383,11 +61848,11 @@
                             "value": "0"
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@@ -59395,14 +61860,14 @@
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                             "prefix": false,
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@@ -59413,12 +61878,12 @@
                               "typeString": "uint32"
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@@ -59427,18 +61892,18 @@
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@@ -59448,51 +61913,51 @@
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@@ -59500,10 +61965,10 @@
                           "typeString": "uint32"
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@@ -59512,17 +61977,17 @@
                         "visibility": "internal"
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@@ -59530,11 +61995,11 @@
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@@ -59542,14 +62007,14 @@
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@@ -59560,124 +62025,124 @@
                         "typeString": "uint32"
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@@ -60311,22 +62776,22 @@
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@@ -60335,18 +62800,18 @@
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@@ -60355,30 +62820,30 @@
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@@ -60392,38 +62857,38 @@
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@@ -60463,18 +62928,18 @@
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@@ -60520,38 +62985,38 @@
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@@ -60591,18 +63056,18 @@
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@@ -60611,30 +63076,30 @@
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@@ -60648,38 +63113,38 @@
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@@ -60687,7 +63152,7 @@
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@@ -60719,18 +63184,18 @@
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@@ -60739,30 +63204,30 @@
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@@ -60776,38 +63241,38 @@
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@@ -60903,43 +63368,43 @@
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+                            "typeIdentifier": "t_struct$_Commit_$504_storage",
                             "typeString": "struct ONEWallet.Commit storage ref"
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                                 "typeString": "bytes32[] memory"
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@@ -60950,7 +63415,7 @@
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@@ -60960,69 +63425,69 @@
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+                                "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage pointer"
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                               "typeString": "bytes32"
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                             "typeString": "bytes32"
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                                 "typeString": "bytes32[] memory"
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@@ -61033,7 +63498,7 @@
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@@ -61043,69 +63508,69 @@
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+                                "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage pointer"
                               }
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                               "typeString": "bytes32"
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                             "typeString": "bytes32"
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                                 "typeString": "bytes32[] memory"
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@@ -61116,7 +63581,7 @@
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@@ -61126,69 +63591,69 @@
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+                                "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage pointer"
                               }
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                             "memberName": "verificationHash",
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                               "typeString": "bytes32"
                             }
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                             "typeString": "bytes32"
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                                 "typeString": "uint32[] memory"
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@@ -61199,7 +63664,7 @@
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                             "nodeType": "IndexAccess",
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@@ -61209,69 +63674,69 @@
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-                                "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                                "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage pointer"
                               }
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                             "memberName": "timestamp",
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                               "typeString": "uint32"
                             }
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                             "typeString": "uint32"
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                                 "typeString": "bool[] memory"
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@@ -61282,7 +63747,7 @@
                             "isPure": false,
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                             "nodeType": "IndexAccess",
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+                            "src": "8380:12:6",
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@@ -61292,40 +63757,40 @@
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+                              "src": "8395:1:6",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                                "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage pointer"
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                             "memberName": "completed",
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-                            "src": "8169:11:0",
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                               "typeString": "bool"
                             }
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                             "typeString": "bool"
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@@ -61334,18 +63799,18 @@
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@@ -61355,51 +63820,51 @@
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                         "typeDescriptions": {
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+                          "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                           "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
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@@ -61407,10 +63872,10 @@
                           "typeString": "uint32"
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@@ -61419,17 +63884,17 @@
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@@ -61437,11 +63902,11 @@
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@@ -61449,14 +63914,14 @@
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@@ -61467,118 +63932,118 @@
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@@ -61949,26 +64414,26 @@
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@@ -62060,32 +64525,32 @@
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@@ -62094,18 +64559,18 @@
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@@ -62139,7 +64604,7 @@
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@@ -62147,13 +64612,13 @@
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                         "name": "hash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 739,
-                        "src": "8593:4:0",
+                        "referencedDeclaration": 1141,
+                        "src": "8819:4:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -62196,31 +64661,31 @@
                         }
                       ],
                       "expression": {
-                        "id": 772,
+                        "id": 1174,
                         "name": "commits",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 117,
-                        "src": "8580:7:0",
+                        "referencedDeclaration": 507,
+                        "src": "8806:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_bytes32_$dyn_storage",
                           "typeString": "bytes32[] storage ref"
                         }
                       },
-                      "id": 774,
+                      "id": 1176,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "push",
                       "nodeType": "MemberAccess",
-                      "src": "8580:12:0",
+                      "src": "8806:12:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_bytes32_$dyn_storage_ptr_$_t_bytes32_$returns$__$bound_to$_t_array$_t_bytes32_$dyn_storage_ptr_$",
                         "typeString": "function (bytes32[] storage pointer,bytes32)"
                       }
                     },
-                    "id": 776,
+                    "id": 1178,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -62228,29 +64693,29 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "8580:18:0",
+                    "src": "8806:18:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 777,
+                  "id": 1179,
                   "nodeType": "ExpressionStatement",
-                  "src": "8580:18:0"
+                  "src": "8806:18:6"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
-                        "id": 782,
+                        "id": 1184,
                         "name": "nc",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 751,
-                        "src": "8632:2:0",
+                        "referencedDeclaration": 1153,
+                        "src": "8858:2:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Commit_$114_memory_ptr",
+                          "typeIdentifier": "t_struct$_Commit_$504_memory_ptr",
                           "typeString": "struct ONEWallet.Commit memory"
                         }
                       }
@@ -62258,31 +64723,31 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_struct$_Commit_$114_memory_ptr",
+                          "typeIdentifier": "t_struct$_Commit_$504_memory_ptr",
                           "typeString": "struct ONEWallet.Commit memory"
                         }
                       ],
                       "expression": {
                         "baseExpression": {
-                          "id": 778,
+                          "id": 1180,
                           "name": "commitLocker",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 123,
-                          "src": "8608:12:0",
+                          "referencedDeclaration": 513,
+                          "src": "8834:12:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$114_storage_$dyn_storage_$",
+                            "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                             "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
                           }
                         },
-                        "id": 780,
+                        "id": 1182,
                         "indexExpression": {
-                          "id": 779,
+                          "id": 1181,
                           "name": "hash",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 739,
-                          "src": "8621:4:0",
+                          "referencedDeclaration": 1141,
+                          "src": "8847:4:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
@@ -62293,26 +64758,26 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "8608:18:0",
+                        "src": "8834:18:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage",
+                          "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                           "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
                         }
                       },
-                      "id": 781,
+                      "id": 1183,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "push",
                       "nodeType": "MemberAccess",
-                      "src": "8608:23:0",
+                      "src": "8834:23:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr_$_t_struct$_Commit_$114_storage_$returns$__$bound_to$_t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr_$",
+                        "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr_$_t_struct$_Commit_$504_storage_$returns$__$bound_to$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr_$",
                         "typeString": "function (struct ONEWallet.Commit storage ref[] storage pointer,struct ONEWallet.Commit storage ref)"
                       }
                     },
-                    "id": 783,
+                    "id": 1185,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -62320,40 +64785,40 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "8608:27:0",
+                    "src": "8834:27:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 784,
+                  "id": 1186,
                   "nodeType": "ExpressionStatement",
-                  "src": "8608:27:0"
+                  "src": "8834:27:6"
                 }
               ]
             },
             "functionSelector": "e4e5b258",
-            "id": 786,
+            "id": 1188,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "commit",
-            "nameLocation": "8293:6:0",
+            "nameLocation": "8519:6:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 744,
+              "id": 1146,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 739,
+                  "id": 1141,
                   "mutability": "mutable",
                   "name": "hash",
-                  "nameLocation": "8308:4:0",
+                  "nameLocation": "8534:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 786,
-                  "src": "8300:12:0",
+                  "scope": 1188,
+                  "src": "8526:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -62361,10 +64826,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 738,
+                    "id": 1140,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "8300:7:0",
+                    "src": "8526:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -62374,13 +64839,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 741,
+                  "id": 1143,
                   "mutability": "mutable",
                   "name": "paramsHash",
-                  "nameLocation": "8322:10:0",
+                  "nameLocation": "8548:10:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 786,
-                  "src": "8314:18:0",
+                  "scope": 1188,
+                  "src": "8540:18:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -62388,10 +64853,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 740,
+                    "id": 1142,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "8314:7:0",
+                    "src": "8540:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -62401,13 +64866,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 743,
+                  "id": 1145,
                   "mutability": "mutable",
                   "name": "verificationHash",
-                  "nameLocation": "8342:16:0",
+                  "nameLocation": "8568:16:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 786,
-                  "src": "8334:24:0",
+                  "scope": 1188,
+                  "src": "8560:24:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -62415,10 +64880,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 742,
+                    "id": 1144,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "8334:7:0",
+                    "src": "8560:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -62427,41 +64892,41 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "8299:60:0"
+              "src": "8525:60:6"
             },
             "returnParameters": {
-              "id": 745,
+              "id": 1147,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "8369:0:0"
+              "src": "8595:0:6"
             },
-            "scope": 2161,
-            "src": "8284:358:0",
+            "scope": 2592,
+            "src": "8510:358:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "external"
           },
           {
             "body": {
-              "id": 807,
+              "id": 1209,
               "nodeType": "Block",
-              "src": "8926:216:0",
+              "src": "9152:216:6",
               "statements": [
                 {
                   "assignments": [
-                    793,
+                    1195,
                     null
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 793,
+                      "id": 1195,
                       "mutability": "mutable",
                       "name": "success",
-                      "nameLocation": "9042:7:0",
+                      "nameLocation": "9268:7:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 807,
-                      "src": "9037:12:0",
+                      "scope": 1209,
+                      "src": "9263:12:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -62469,10 +64934,10 @@
                         "typeString": "bool"
                       },
                       "typeName": {
-                        "id": 792,
+                        "id": 1194,
                         "name": "bool",
                         "nodeType": "ElementaryTypeName",
-                        "src": "9037:4:0",
+                        "src": "9263:4:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -62482,19 +64947,19 @@
                     },
                     null
                   ],
-                  "id": 804,
+                  "id": 1206,
                   "initialValue": {
                     "arguments": [
                       {
                         "hexValue": "",
-                        "id": 802,
+                        "id": 1204,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "9108:2:0",
+                        "src": "9334:2:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
                           "typeString": "literal_string \"\""
@@ -62517,31 +64982,31 @@
                           }
                         ],
                         "expression": {
-                          "id": 794,
+                          "id": 1196,
                           "name": "lastResortAddress",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 63,
-                          "src": "9054:17:0",
+                          "referencedDeclaration": 452,
+                          "src": "9280:17:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address_payable",
                             "typeString": "address payable"
                           }
                         },
-                        "id": 795,
+                        "id": 1197,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "call",
                         "nodeType": "MemberAccess",
-                        "src": "9054:22:0",
+                        "src": "9280:22:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$",
                           "typeString": "function (bytes memory) payable returns (bool,bytes memory)"
                         }
                       },
-                      "id": 801,
+                      "id": 1203,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -62555,14 +65020,14 @@
                           "expression": {
                             "arguments": [
                               {
-                                "id": 798,
+                                "id": 1200,
                                 "name": "this",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
                                 "referencedDeclaration": 4294967268,
-                                "src": "9093:4:0",
+                                "src": "9319:4:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                  "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                   "typeString": "contract ONEWallet"
                                 }
                               }
@@ -62570,30 +65035,30 @@
                             "expression": {
                               "argumentTypes": [
                                 {
-                                  "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                  "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                   "typeString": "contract ONEWallet"
                                 }
                               ],
-                              "id": 797,
+                              "id": 1199,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "9085:7:0",
+                              "src": "9311:7:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_address_$",
                                 "typeString": "type(address)"
                               },
                               "typeName": {
-                                "id": 796,
+                                "id": 1198,
                                 "name": "address",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "9085:7:0",
+                                "src": "9311:7:6",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 799,
+                            "id": 1201,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -62601,34 +65066,34 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "9085:13:0",
+                            "src": "9311:13:6",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_address",
                               "typeString": "address"
                             }
                           },
-                          "id": 800,
+                          "id": 1202,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "balance",
                           "nodeType": "MemberAccess",
-                          "src": "9085:21:0",
+                          "src": "9311:21:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         }
                       ],
-                      "src": "9054:53:0",
+                      "src": "9280:53:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$value",
                         "typeString": "function (bytes memory) payable returns (bool,bytes memory)"
                       }
                     },
-                    "id": 803,
+                    "id": 1205,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -62636,7 +65101,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "9054:57:0",
+                    "src": "9280:57:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$_t_bool_$_t_bytes_memory_ptr_$",
@@ -62644,60 +65109,60 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "9036:75:0"
+                  "src": "9262:75:6"
                 },
                 {
                   "expression": {
-                    "id": 805,
+                    "id": 1207,
                     "name": "success",
                     "nodeType": "Identifier",
                     "overloadedDeclarations": [],
-                    "referencedDeclaration": 793,
-                    "src": "9128:7:0",
+                    "referencedDeclaration": 1195,
+                    "src": "9354:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "functionReturnParameters": 791,
-                  "id": 806,
+                  "functionReturnParameters": 1193,
+                  "id": 1208,
                   "nodeType": "Return",
-                  "src": "9121:14:0"
+                  "src": "9347:14:6"
                 }
               ]
             },
             "documentation": {
-              "id": 787,
+              "id": 1189,
               "nodeType": "StructuredDocumentation",
-              "src": "8648:231:0",
+              "src": "8874:231:6",
               "text": "This function sends all remaining funds of the wallet to `lastResortAddress`. The caller should verify that `lastResortAddress` is not null.\n TODO: also transfer all tracked ERC20, 721, 1155 tokens to `lastResortAddress`"
             },
-            "id": 808,
+            "id": 1210,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_drain",
-            "nameLocation": "8893:6:0",
+            "nameLocation": "9119:6:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 788,
+              "id": 1190,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "8899:2:0"
+              "src": "9125:2:6"
             },
             "returnParameters": {
-              "id": 791,
+              "id": 1193,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 790,
+                  "id": 1192,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 808,
-                  "src": "8920:4:0",
+                  "scope": 1210,
+                  "src": "9146:4:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -62705,10 +65170,10 @@
                     "typeString": "bool"
                   },
                   "typeName": {
-                    "id": 789,
+                    "id": 1191,
                     "name": "bool",
                     "nodeType": "ElementaryTypeName",
-                    "src": "8920:4:0",
+                    "src": "9146:4:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -62717,34 +65182,34 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "8919:6:0"
+              "src": "9145:6:6"
             },
-            "scope": 2161,
-            "src": "8884:258:0",
+            "scope": 2592,
+            "src": "9110:258:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 907,
+              "id": 1313,
               "nodeType": "Block",
-              "src": "9229:859:0",
+              "src": "9455:894:6",
               "statements": [
                 {
                   "assignments": [
-                    818
+                    1220
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 818,
+                      "id": 1220,
                       "mutability": "mutable",
                       "name": "day",
-                      "nameLocation": "9246:3:0",
+                      "nameLocation": "9472:3:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 907,
-                      "src": "9239:10:0",
+                      "scope": 1313,
+                      "src": "9465:10:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -62752,10 +65217,10 @@
                         "typeString": "uint32"
                       },
                       "typeName": {
-                        "id": 817,
+                        "id": 1219,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "9239:6:0",
+                        "src": "9465:6:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -62764,7 +65229,7 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 826,
+                  "id": 1228,
                   "initialValue": {
                     "arguments": [
                       {
@@ -62772,32 +65237,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 824,
+                        "id": 1226,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 821,
+                            "id": 1223,
                             "name": "block",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 4294967292,
-                            "src": "9259:5:0",
+                            "src": "9485:5:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_magic_block",
                               "typeString": "block"
                             }
                           },
-                          "id": 822,
+                          "id": 1224,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "timestamp",
                           "nodeType": "MemberAccess",
-                          "src": "9259:15:0",
+                          "src": "9485:15:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -62806,18 +65271,18 @@
                         "nodeType": "BinaryOperation",
                         "operator": "/",
                         "rightExpression": {
-                          "id": 823,
+                          "id": 1225,
                           "name": "SECONDS_PER_DAY",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 83,
-                          "src": "9277:15:0",
+                          "referencedDeclaration": 472,
+                          "src": "9503:15:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "src": "9259:33:0",
+                        "src": "9485:33:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -62831,26 +65296,26 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 820,
+                      "id": 1222,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "ElementaryTypeNameExpression",
-                      "src": "9252:6:0",
+                      "src": "9478:6:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_type$_t_uint32_$",
                         "typeString": "type(uint32)"
                       },
                       "typeName": {
-                        "id": 819,
+                        "id": 1221,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "9252:6:0",
+                        "src": "9478:6:6",
                         "typeDescriptions": {}
                       }
                     },
-                    "id": 825,
+                    "id": 1227,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -62858,7 +65323,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "9252:41:0",
+                    "src": "9478:41:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
@@ -62866,7 +65331,7 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "9239:54:0"
+                  "src": "9465:54:6"
                 },
                 {
                   "condition": {
@@ -62874,18 +65339,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
-                    "id": 829,
+                    "id": 1231,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 827,
+                      "id": 1229,
                       "name": "day",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 818,
-                      "src": "9307:3:0",
+                      "referencedDeclaration": 1220,
+                      "src": "9533:3:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -62894,45 +65359,45 @@
                     "nodeType": "BinaryOperation",
                     "operator": ">",
                     "rightExpression": {
-                      "id": 828,
+                      "id": 1230,
                       "name": "lastTransferDay",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 69,
-                      "src": "9313:15:0",
+                      "referencedDeclaration": 458,
+                      "src": "9539:15:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "9307:21:0",
+                    "src": "9533:21:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 839,
+                  "id": 1241,
                   "nodeType": "IfStatement",
-                  "src": "9303:101:0",
+                  "src": "9529:101:6",
                   "trueBody": {
-                    "id": 838,
+                    "id": 1240,
                     "nodeType": "Block",
-                    "src": "9330:74:0",
+                    "src": "9556:74:6",
                     "statements": [
                       {
                         "expression": {
-                          "id": 832,
+                          "id": 1234,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
-                            "id": 830,
+                            "id": 1232,
                             "name": "spentToday",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 67,
-                            "src": "9344:10:0",
+                            "referencedDeclaration": 456,
+                            "src": "9570:10:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -62942,44 +65407,44 @@
                           "operator": "=",
                           "rightHandSide": {
                             "hexValue": "30",
-                            "id": 831,
+                            "id": 1233,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "9357:1:0",
+                            "src": "9583:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_0_by_1",
                               "typeString": "int_const 0"
                             },
                             "value": "0"
                           },
-                          "src": "9344:14:0",
+                          "src": "9570:14:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
-                        "id": 833,
+                        "id": 1235,
                         "nodeType": "ExpressionStatement",
-                        "src": "9344:14:0"
+                        "src": "9570:14:6"
                       },
                       {
                         "expression": {
-                          "id": 836,
+                          "id": 1238,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
-                            "id": 834,
+                            "id": 1236,
                             "name": "lastTransferDay",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 69,
-                            "src": "9372:15:0",
+                            "referencedDeclaration": 458,
+                            "src": "9598:15:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -62988,26 +65453,26 @@
                           "nodeType": "Assignment",
                           "operator": "=",
                           "rightHandSide": {
-                            "id": 835,
+                            "id": 1237,
                             "name": "day",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 818,
-                            "src": "9390:3:0",
+                            "referencedDeclaration": 1220,
+                            "src": "9616:3:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
                             }
                           },
-                          "src": "9372:21:0",
+                          "src": "9598:21:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "id": 837,
+                        "id": 1239,
                         "nodeType": "ExpressionStatement",
-                        "src": "9372:21:0"
+                        "src": "9598:21:6"
                       }
                     ]
                   }
@@ -63018,7 +65483,7 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 844,
+                    "id": 1246,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -63028,18 +65493,18 @@
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       },
-                      "id": 842,
+                      "id": 1244,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "leftExpression": {
-                        "id": 840,
+                        "id": 1242,
                         "name": "spentToday",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 67,
-                        "src": "9417:10:0",
+                        "referencedDeclaration": 456,
+                        "src": "9643:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -63048,18 +65513,18 @@
                       "nodeType": "BinaryOperation",
                       "operator": "+",
                       "rightExpression": {
-                        "id": 841,
+                        "id": 1243,
                         "name": "amount",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 812,
-                        "src": "9430:6:0",
+                        "referencedDeclaration": 1214,
+                        "src": "9656:6:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         }
                       },
-                      "src": "9417:19:0",
+                      "src": "9643:19:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
@@ -63068,77 +65533,77 @@
                     "nodeType": "BinaryOperation",
                     "operator": ">",
                     "rightExpression": {
-                      "id": 843,
+                      "id": 1245,
                       "name": "dailyLimit",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 65,
-                      "src": "9439:10:0",
+                      "referencedDeclaration": 454,
+                      "src": "9665:10:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "9417:32:0",
+                    "src": "9643:32:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 855,
+                  "id": 1257,
                   "nodeType": "IfStatement",
-                  "src": "9413:148:0",
+                  "src": "9639:148:6",
                   "trueBody": {
-                    "id": 854,
+                    "id": 1256,
                     "nodeType": "Block",
-                    "src": "9451:110:0",
+                    "src": "9677:110:6",
                     "statements": [
                       {
                         "eventCall": {
                           "arguments": [
                             {
-                              "id": 846,
+                              "id": 1248,
                               "name": "amount",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 812,
-                              "src": "9487:6:0",
+                              "referencedDeclaration": 1214,
+                              "src": "9713:6:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
                             {
-                              "id": 847,
+                              "id": 1249,
                               "name": "dailyLimit",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 65,
-                              "src": "9495:10:0",
+                              "referencedDeclaration": 454,
+                              "src": "9721:10:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
                             {
-                              "id": 848,
+                              "id": 1250,
                               "name": "spentToday",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 67,
-                              "src": "9507:10:0",
+                              "referencedDeclaration": 456,
+                              "src": "9733:10:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
                             {
-                              "id": 849,
+                              "id": 1251,
                               "name": "dest",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 810,
-                              "src": "9519:4:0",
+                              "referencedDeclaration": 1212,
+                              "src": "9745:4:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address_payable",
                                 "typeString": "address payable"
@@ -63164,18 +65629,18 @@
                                 "typeString": "address payable"
                               }
                             ],
-                            "id": 845,
+                            "id": 1247,
                             "name": "ExceedDailyLimit",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 23,
-                            "src": "9470:16:0",
+                            "referencedDeclaration": 410,
+                            "src": "9696:16:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_event_nonpayable$_t_uint256_$_t_uint256_$_t_uint256_$_t_address_$returns$__$",
                               "typeString": "function (uint256,uint256,uint256,address)"
                             }
                           },
-                          "id": 850,
+                          "id": 1252,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -63183,38 +65648,38 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "9470:54:0",
+                          "src": "9696:54:6",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 851,
+                        "id": 1253,
                         "nodeType": "EmitStatement",
-                        "src": "9465:59:0"
+                        "src": "9691:59:6"
                       },
                       {
                         "expression": {
                           "hexValue": "66616c7365",
-                          "id": 852,
+                          "id": 1254,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "bool",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "9545:5:0",
+                          "src": "9771:5:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           },
                           "value": "false"
                         },
-                        "functionReturnParameters": 816,
-                        "id": 853,
+                        "functionReturnParameters": 1218,
+                        "id": 1255,
                         "nodeType": "Return",
-                        "src": "9538:12:0"
+                        "src": "9764:12:6"
                       }
                     ]
                   }
@@ -63225,7 +65690,7 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 862,
+                    "id": 1264,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -63234,14 +65699,14 @@
                       "expression": {
                         "arguments": [
                           {
-                            "id": 858,
+                            "id": 1260,
                             "name": "this",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 4294967268,
-                            "src": "9582:4:0",
+                            "src": "9808:4:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                              "typeIdentifier": "t_contract$_ONEWallet_$2592",
                               "typeString": "contract ONEWallet"
                             }
                           }
@@ -63249,30 +65714,30 @@
                         "expression": {
                           "argumentTypes": [
                             {
-                              "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                              "typeIdentifier": "t_contract$_ONEWallet_$2592",
                               "typeString": "contract ONEWallet"
                             }
                           ],
-                          "id": 857,
+                          "id": 1259,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "lValueRequested": false,
                           "nodeType": "ElementaryTypeNameExpression",
-                          "src": "9574:7:0",
+                          "src": "9800:7:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_type$_t_address_$",
                             "typeString": "type(address)"
                           },
                           "typeName": {
-                            "id": 856,
+                            "id": 1258,
                             "name": "address",
                             "nodeType": "ElementaryTypeName",
-                            "src": "9574:7:0",
+                            "src": "9800:7:6",
                             "typeDescriptions": {}
                           }
                         },
-                        "id": 859,
+                        "id": 1261,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -63280,21 +65745,21 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "9574:13:0",
+                        "src": "9800:13:6",
                         "tryCall": false,
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
-                      "id": 860,
+                      "id": 1262,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "balance",
                       "nodeType": "MemberAccess",
-                      "src": "9574:21:0",
+                      "src": "9800:21:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
@@ -63303,41 +65768,41 @@
                     "nodeType": "BinaryOperation",
                     "operator": "<",
                     "rightExpression": {
-                      "id": 861,
+                      "id": 1263,
                       "name": "amount",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 812,
-                      "src": "9598:6:0",
+                      "referencedDeclaration": 1214,
+                      "src": "9824:6:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "9574:30:0",
+                    "src": "9800:30:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 876,
+                  "id": 1278,
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-                  "src": "9570:145:0",
+                  "src": "9796:145:6",
                   "trueBody": {
-                    "id": 875,
+                    "id": 1277,
                     "nodeType": "Block",
-                    "src": "9606:109:0",
+                    "src": "9832:109:6",
                     "statements": [
                       {
                         "eventCall": {
                           "arguments": [
                             {
-                              "id": 864,
+                              "id": 1266,
                               "name": "amount",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 812,
-                              "src": "9642:6:0",
+                              "referencedDeclaration": 1214,
+                              "src": "9868:6:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -63347,14 +65812,14 @@
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 867,
+                                    "id": 1269,
                                     "name": "this",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 4294967268,
-                                    "src": "9658:4:0",
+                                    "src": "9884:4:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                       "typeString": "contract ONEWallet"
                                     }
                                   }
@@ -63362,30 +65827,30 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                       "typeString": "contract ONEWallet"
                                     }
                                   ],
-                                  "id": 866,
+                                  "id": 1268,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "9650:7:0",
+                                  "src": "9876:7:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_address_$",
                                     "typeString": "type(address)"
                                   },
                                   "typeName": {
-                                    "id": 865,
+                                    "id": 1267,
                                     "name": "address",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "9650:7:0",
+                                    "src": "9876:7:6",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 868,
+                                "id": 1270,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -63393,33 +65858,33 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "9650:13:0",
+                                "src": "9876:13:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_address",
                                   "typeString": "address"
                                 }
                               },
-                              "id": 869,
+                              "id": 1271,
                               "isConstant": false,
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                               "isPure": false,
                               "lValueRequested": false,
                               "memberName": "balance",
                               "nodeType": "MemberAccess",
-                              "src": "9650:21:0",
+                              "src": "9876:21:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
                             {
-                              "id": 870,
+                              "id": 1272,
                               "name": "dest",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 810,
-                              "src": "9673:4:0",
+                              "referencedDeclaration": 1212,
+                              "src": "9899:4:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address_payable",
                                 "typeString": "address payable"
@@ -63441,18 +65906,18 @@
                                 "typeString": "address payable"
                               }
                             ],
-                            "id": 863,
+                            "id": 1265,
                             "name": "InsufficientFund",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 13,
-                            "src": "9625:16:0",
+                            "referencedDeclaration": 400,
+                            "src": "9851:16:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_event_nonpayable$_t_uint256_$_t_uint256_$_t_address_$returns$__$",
                               "typeString": "function (uint256,uint256,address)"
                             }
                           },
-                          "id": 871,
+                          "id": 1273,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -63460,57 +65925,100 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "9625:53:0",
+                          "src": "9851:53:6",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 872,
+                        "id": 1274,
                         "nodeType": "EmitStatement",
-                        "src": "9620:58:0"
+                        "src": "9846:58:6"
                       },
                       {
                         "expression": {
                           "hexValue": "66616c7365",
-                          "id": 873,
+                          "id": 1275,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "bool",
                           "lValueRequested": false,
                           "nodeType": "Literal",
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                           "value": "false"
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@@ -63518,10 +66026,10 @@
                         "typeString": "bool"
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@@ -63531,19 +66039,19 @@
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@@ -63566,31 +66074,31 @@
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                             "typeString": "address payable"
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                         "memberName": "call",
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@@ -63601,25 +66109,25 @@
                       "nodeType": "FunctionCallOptions",
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                           "name": "amount",
                           "nodeType": "Identifier",
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                             "typeString": "uint256"
                           }
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@@ -63627,7 +66135,7 @@
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@@ -63635,11 +66143,11 @@
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@@ -63647,14 +66155,14 @@
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@@ -63665,24 +66173,67 @@
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+                            "name": "spentToday",
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+                            "src": "10179:10:6",
+                            "typeDescriptions": {
+                              "typeIdentifier": "t_uint256",
+                              "typeString": "uint256"
+                            }
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+                          "operator": "-=",
+                          "rightHandSide": {
+                            "id": 1295,
+                            "name": "amount",
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+                            "src": "10193:6:6",
+                            "typeDescriptions": {
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+                              "typeString": "uint256"
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+                            "typeString": "uint256"
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                                 "typeString": "address payable"
@@ -63696,18 +66247,18 @@
                                 "typeString": "address payable"
                               }
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                               "typeString": "function (address)"
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@@ -63715,107 +66266,64 @@
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                         "name": "amount",
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                           "typeString": "uint256"
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@@ -63833,18 +66341,18 @@
                           "typeString": "address payable"
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@@ -63852,61 +66360,61 @@
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             "modifiers": [],
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-            "nameLocation": "9157:9:0",
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@@ -63914,10 +66422,10 @@
                     "typeString": "address payable"
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@@ -63928,13 +66436,13 @@
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@@ -63942,10 +66450,10 @@
                     "typeString": "uint256"
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@@ -63954,21 +66462,21 @@
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@@ -63976,10 +66484,10 @@
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@@ -63988,19 +66496,19 @@
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@@ -64008,18 +66516,18 @@
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                       "typeString": "address"
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-                      "src": "10151:17:0",
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                         "typeString": "address payable"
@@ -64031,14 +66539,14 @@
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                           "nodeType": "Literal",
-                          "src": "10180:1:0",
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@@ -64053,26 +66561,26 @@
                             "typeString": "int_const 0"
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                         "nodeType": "ElementaryTypeNameExpression",
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                         "typeDescriptions": {
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                           "typeString": "type(address)"
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@@ -64080,44 +66588,44 @@
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                         "typeString": "address"
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@@ -64125,45 +66633,45 @@
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@@ -64195,7 +66703,7 @@
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@@ -64207,31 +66715,31 @@
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@@ -64344,19 +66852,19 @@
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@@ -64366,18 +66874,18 @@
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@@ -64411,26 +66919,26 @@
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@@ -64584,10 +67092,10 @@
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@@ -64597,46 +67105,46 @@
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@@ -64702,32 +67210,32 @@
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@@ -64736,23 +67244,23 @@
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-                          "src": "12060:9:0",
+                          "referencedDeclaration": 1368,
+                          "src": "12321:9:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
@@ -64760,111 +67268,111 @@
                         "operator": "==",
                         "rightExpression": {
                           "expression": {
-                            "id": 1098,
+                            "id": 1504,
                             "name": "TokenType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2176,
-                            "src": "12073:9:0",
+                            "referencedDeclaration": 2607,
+                            "src": "12334:9:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2176_$",
+                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                               "typeString": "type(enum TokenTracker.TokenType)"
                             }
                           },
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                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "lValueRequested": false,
                           "memberName": "ERC1155",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2174,
-                          "src": "12073:17:0",
+                          "referencedDeclaration": 2605,
+                          "src": "12334:17:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
-                        "src": "12060:30:0",
+                        "src": "12321:30:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
                         }
                       },
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+                      "id": 1557,
                       "nodeType": "IfStatement",
-                      "src": "12056:529:0",
+                      "src": "12317:529:6",
                       "trueBody": {
-                        "id": 1150,
+                        "id": 1556,
                         "nodeType": "Block",
-                        "src": "12092:493:0",
+                        "src": "12353:493:6",
                         "statements": [
                           {
                             "clauses": [
                               {
                                 "block": {
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+                                  "id": 1528,
                                   "nodeType": "Block",
-                                  "src": "12197:111:0",
+                                  "src": "12458:111:6",
                                   "statements": [
                                     {
                                       "eventCall": {
                                         "arguments": [
                                           {
-                                            "id": 1115,
+                                            "id": 1521,
                                             "name": "tokenType",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 962,
-                                            "src": "12243:9:0",
+                                            "referencedDeclaration": 1368,
+                                            "src": "12504:9:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_enum$_TokenType_$2176",
+                                              "typeIdentifier": "t_enum$_TokenType_$2607",
                                               "typeString": "enum TokenTracker.TokenType"
                                             }
                                           },
                                           {
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+                                            "id": 1522,
                                             "name": "contractAddress",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
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-                                            "src": "12254:15:0",
+                                            "referencedDeclaration": 1370,
+                                            "src": "12515:15:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
                                               "typeString": "address"
                                             }
                                           },
                                           {
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                                             "name": "tokenId",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 966,
-                                            "src": "12271:7:0",
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                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint256",
                                               "typeString": "uint256"
                                             }
                                           },
                                           {
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+                                            "id": 1524,
                                             "name": "dest",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
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-                                            "src": "12280:4:0",
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+                                            "src": "12541:4:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
                                               "typeString": "address"
                                             }
                                           },
                                           {
-                                            "id": 1119,
+                                            "id": 1525,
                                             "name": "amount",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
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+                                            "referencedDeclaration": 1376,
+                                            "src": "12547:6:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint256",
                                               "typeString": "uint256"
@@ -64874,7 +67382,7 @@
                                         "expression": {
                                           "argumentTypes": [
                                             {
-                                              "typeIdentifier": "t_enum$_TokenType_$2176",
+                                              "typeIdentifier": "t_enum$_TokenType_$2607",
                                               "typeString": "enum TokenTracker.TokenType"
                                             },
                                             {
@@ -64894,18 +67402,18 @@
                                               "typeString": "uint256"
                                             }
                                           ],
-                                          "id": 1114,
+                                          "id": 1520,
                                           "name": "TokenTransferSucceeded",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
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-                                          "src": "12220:22:0",
+                                          "referencedDeclaration": 2692,
+                                          "src": "12481:22:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                             "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                           }
                                         },
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@@ -64913,100 +67421,100 @@
                                         "lValueRequested": false,
                                         "names": [],
                                         "nodeType": "FunctionCall",
-                                        "src": "12220:73:0",
+                                        "src": "12481:73:6",
                                         "tryCall": false,
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_tuple$__$",
                                           "typeString": "tuple()"
                                         }
                                       },
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                                       "nodeType": "EmitStatement",
-                                      "src": "12215:78:0"
+                                      "src": "12476:78:6"
                                     }
                                   ]
                                 },
                                 "errorName": "",
-                                "id": 1123,
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                                 "nodeType": "TryCatchClause",
-                                "src": "12197:111:0"
+                                "src": "12458:111:6"
                               },
                               {
                                 "block": {
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+                                  "id": 1542,
                                   "nodeType": "Block",
-                                  "src": "12342:115:0",
+                                  "src": "12603:115:6",
                                   "statements": [
                                     {
                                       "eventCall": {
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                                           {
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                                             "name": "tokenType",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 962,
-                                            "src": "12384:9:0",
+                                            "referencedDeclaration": 1368,
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                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_enum$_TokenType_$2176",
+                                              "typeIdentifier": "t_enum$_TokenType_$2607",
                                               "typeString": "enum TokenTracker.TokenType"
                                             }
                                           },
                                           {
-                                            "id": 1129,
+                                            "id": 1535,
                                             "name": "contractAddress",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 964,
-                                            "src": "12395:15:0",
+                                            "referencedDeclaration": 1370,
+                                            "src": "12656:15:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
                                               "typeString": "address"
                                             }
                                           },
                                           {
-                                            "id": 1130,
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                                             "name": "tokenId",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 966,
-                                            "src": "12412:7:0",
+                                            "referencedDeclaration": 1372,
+                                            "src": "12673:7:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint256",
                                               "typeString": "uint256"
                                             }
                                           },
                                           {
-                                            "id": 1131,
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                                             "name": "dest",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
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-                                            "src": "12421:4:0",
+                                            "referencedDeclaration": 1374,
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                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
                                               "typeString": "address"
                                             }
                                           },
                                           {
-                                            "id": 1132,
+                                            "id": 1538,
                                             "name": "amount",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
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-                                            "src": "12427:6:0",
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                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint256",
                                               "typeString": "uint256"
                                             }
                                           },
                                           {
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                                             "name": "reason",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
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                                             "typeDescriptions": {
                                               "typeIdentifier": "t_string_memory_ptr",
                                               "typeString": "string memory"
@@ -65016,7 +67524,7 @@
                                         "expression": {
                                           "argumentTypes": [
                                             {
-                                              "typeIdentifier": "t_enum$_TokenType_$2176",
+                                              "typeIdentifier": "t_enum$_TokenType_$2607",
                                               "typeString": "enum TokenTracker.TokenType"
                                             },
                                             {
@@ -65040,18 +67548,18 @@
                                               "typeString": "string memory"
                                             }
                                           ],
-                                          "id": 1127,
+                                          "id": 1533,
                                           "name": "TokenTransferError",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2248,
-                                          "src": "12365:18:0",
+                                          "referencedDeclaration": 2679,
+                                          "src": "12626:18:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                             "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                           }
                                         },
-                                        "id": 1134,
+                                        "id": 1540,
                                         "isConstant": false,
                                         "isLValue": false,
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@@ -65059,35 +67567,35 @@
                                         "lValueRequested": false,
                                         "names": [],
                                         "nodeType": "FunctionCall",
-                                        "src": "12365:77:0",
+                                        "src": "12626:77:6",
                                         "tryCall": false,
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_tuple$__$",
                                           "typeString": "tuple()"
                                         }
                                       },
-                                      "id": 1135,
+                                      "id": 1541,
                                       "nodeType": "EmitStatement",
-                                      "src": "12360:82:0"
+                                      "src": "12621:82:6"
                                     }
                                   ]
                                 },
                                 "errorName": "Error",
-                                "id": 1137,
+                                "id": 1543,
                                 "nodeType": "TryCatchClause",
                                 "parameters": {
-                                  "id": 1126,
+                                  "id": 1532,
                                   "nodeType": "ParameterList",
                                   "parameters": [
                                     {
                                       "constant": false,
-                                      "id": 1125,
+                                      "id": 1531,
                                       "mutability": "mutable",
                                       "name": "reason",
-                                      "nameLocation": "12335:6:0",
+                                      "nameLocation": "12596:6:6",
                                       "nodeType": "VariableDeclaration",
-                                      "scope": 1137,
-                                      "src": "12321:20:0",
+                                      "scope": 1543,
+                                      "src": "12582:20:6",
                                       "stateVariable": false,
                                       "storageLocation": "memory",
                                       "typeDescriptions": {
@@ -65095,10 +67603,10 @@
                                         "typeString": "string"
                                       },
                                       "typeName": {
-                                        "id": 1124,
+                                        "id": 1530,
                                         "name": "string",
                                         "nodeType": "ElementaryTypeName",
-                                        "src": "12321:6:0",
+                                        "src": "12582:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_string_storage_ptr",
                                           "typeString": "string"
@@ -65107,74 +67615,74 @@
                                       "visibility": "internal"
                                     }
                                   ],
-                                  "src": "12320:22:0"
+                                  "src": "12581:22:6"
                                 },
-                                "src": "12309:148:0"
+                                "src": "12570:148:6"
                               },
                               {
                                 "block": {
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+                                  "id": 1553,
                                   "nodeType": "Block",
-                                  "src": "12464:111:0",
+                                  "src": "12725:111:6",
                                   "statements": [
                                     {
                                       "eventCall": {
                                         "arguments": [
                                           {
-                                            "id": 1139,
+                                            "id": 1545,
                                             "name": "tokenType",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 962,
-                                            "src": "12506:9:0",
+                                            "referencedDeclaration": 1368,
+                                            "src": "12767:9:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_enum$_TokenType_$2176",
+                                              "typeIdentifier": "t_enum$_TokenType_$2607",
                                               "typeString": "enum TokenTracker.TokenType"
                                             }
                                           },
                                           {
-                                            "id": 1140,
+                                            "id": 1546,
                                             "name": "contractAddress",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 964,
-                                            "src": "12517:15:0",
+                                            "referencedDeclaration": 1370,
+                                            "src": "12778:15:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
                                               "typeString": "address"
                                             }
                                           },
                                           {
-                                            "id": 1141,
+                                            "id": 1547,
                                             "name": "tokenId",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 966,
-                                            "src": "12534:7:0",
+                                            "referencedDeclaration": 1372,
+                                            "src": "12795:7:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint256",
                                               "typeString": "uint256"
                                             }
                                           },
                                           {
-                                            "id": 1142,
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                                             "name": "dest",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 968,
-                                            "src": "12543:4:0",
+                                            "referencedDeclaration": 1374,
+                                            "src": "12804:4:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
                                               "typeString": "address"
                                             }
                                           },
                                           {
-                                            "id": 1143,
+                                            "id": 1549,
                                             "name": "amount",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 970,
-                                            "src": "12549:6:0",
+                                            "referencedDeclaration": 1376,
+                                            "src": "12810:6:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint256",
                                               "typeString": "uint256"
@@ -65182,14 +67690,14 @@
                                           },
                                           {
                                             "hexValue": "",
-                                            "id": 1144,
+                                            "id": 1550,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": true,
                                             "kind": "string",
                                             "lValueRequested": false,
                                             "nodeType": "Literal",
-                                            "src": "12557:2:0",
+                                            "src": "12818:2:6",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
                                               "typeString": "literal_string \"\""
@@ -65200,7 +67708,7 @@
                                         "expression": {
                                           "argumentTypes": [
                                             {
-                                              "typeIdentifier": "t_enum$_TokenType_$2176",
+                                              "typeIdentifier": "t_enum$_TokenType_$2607",
                                               "typeString": "enum TokenTracker.TokenType"
                                             },
                                             {
@@ -65224,18 +67732,18 @@
                                               "typeString": "literal_string \"\""
                                             }
                                           ],
-                                          "id": 1138,
+                                          "id": 1544,
                                           "name": "TokenTransferError",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2248,
-                                          "src": "12487:18:0",
+                                          "referencedDeclaration": 2679,
+                                          "src": "12748:18:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                             "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                           }
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+                                        "id": 1551,
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@@ -65243,23 +67751,23 @@
                                         "lValueRequested": false,
                                         "names": [],
                                         "nodeType": "FunctionCall",
-                                        "src": "12487:73:0",
+                                        "src": "12748:73:6",
                                         "tryCall": false,
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_tuple$__$",
                                           "typeString": "tuple()"
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-                                      "id": 1146,
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                                       "nodeType": "EmitStatement",
-                                      "src": "12482:78:0"
+                                      "src": "12743:78:6"
                                     }
                                   ]
                                 },
                                 "errorName": "",
-                                "id": 1148,
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                                 "nodeType": "TryCatchClause",
-                                "src": "12458:117:0"
+                                "src": "12719:117:6"
                               }
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                             "externalCall": {
@@ -65267,14 +67775,14 @@
                                 {
                                   "arguments": [
                                     {
-                                      "id": 1107,
+                                      "id": 1513,
                                       "name": "this",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 4294967268,
-                                      "src": "12161:4:0",
+                                      "src": "12422:4:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                        "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                         "typeString": "contract ONEWallet"
                                       }
                                     }
@@ -65282,30 +67790,30 @@
                                   "expression": {
                                     "argumentTypes": [
                                       {
-                                        "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                        "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                         "typeString": "contract ONEWallet"
                                       }
                                     ],
-                                    "id": 1106,
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                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "12153:7:0",
+                                    "src": "12414:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_address_$",
                                       "typeString": "type(address)"
                                     },
                                     "typeName": {
-                                      "id": 1105,
+                                      "id": 1511,
                                       "name": "address",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "12153:7:0",
+                                      "src": "12414:7:6",
                                       "typeDescriptions": {}
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-                                  "id": 1108,
+                                  "id": 1514,
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@@ -65313,7 +67821,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "12153:13:0",
+                                  "src": "12414:13:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
@@ -65321,48 +67829,48 @@
                                   }
                                 },
                                 {
-                                  "id": 1109,
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                                   "name": "dest",
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                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 968,
-                                  "src": "12168:4:0",
+                                  "referencedDeclaration": 1374,
+                                  "src": "12429:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
                                   }
                                 },
                                 {
-                                  "id": 1110,
+                                  "id": 1516,
                                   "name": "tokenId",
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                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 966,
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+                                  "referencedDeclaration": 1372,
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                                   "typeDescriptions": {
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                                     "typeString": "uint256"
                                   }
                                 },
                                 {
-                                  "id": 1111,
+                                  "id": 1517,
                                   "name": "amount",
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                                   "overloadedDeclarations": [],
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+                                  "referencedDeclaration": 1376,
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                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
                                 {
-                                  "id": 1112,
+                                  "id": 1518,
                                   "name": "data",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 972,
-                                  "src": "12191:4:0",
+                                  "referencedDeclaration": 1378,
+                                  "src": "12452:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes_memory_ptr",
                                     "typeString": "bytes memory"
@@ -65395,12 +67903,12 @@
                                 "expression": {
                                   "arguments": [
                                     {
-                                      "id": 1102,
+                                      "id": 1508,
                                       "name": "contractAddress",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 964,
-                                      "src": "12119:15:0",
+                                      "referencedDeclaration": 1370,
+                                      "src": "12380:15:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_address",
                                         "typeString": "address"
@@ -65414,18 +67922,18 @@
                                         "typeString": "address"
                                       }
                                     ],
-                                    "id": 1101,
+                                    "id": 1507,
                                     "name": "IERC1155",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3551,
-                                    "src": "12110:8:0",
+                                    "referencedDeclaration": 121,
+                                    "src": "12371:8:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_type$_t_contract$_IERC1155_$3551_$",
+                                      "typeIdentifier": "t_type$_t_contract$_IERC1155_$121_$",
                                       "typeString": "type(contract IERC1155)"
                                     }
                                   },
-                                  "id": 1103,
+                                  "id": 1509,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -65433,28 +67941,28 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "12110:25:0",
+                                  "src": "12371:25:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_contract$_IERC1155_$3551",
+                                    "typeIdentifier": "t_contract$_IERC1155_$121",
                                     "typeString": "contract IERC1155"
                                   }
                                 },
-                                "id": 1104,
+                                "id": 1510,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "memberName": "safeTransferFrom",
                                 "nodeType": "MemberAccess",
-                                "referencedDeclaration": 3534,
-                                "src": "12110:42:0",
+                                "referencedDeclaration": 104,
+                                "src": "12371:42:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
                                   "typeString": "function (address,address,uint256,uint256,bytes memory) external"
                                 }
                               },
-                              "id": 1113,
+                              "id": 1519,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -65462,94 +67970,94 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "12110:86:0",
+                              "src": "12371:86:6",
                               "tryCall": true,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_tuple$__$",
                                 "typeString": "tuple()"
                               }
                             },
-                            "id": 1149,
+                            "id": 1555,
                             "nodeType": "TryStatement",
-                            "src": "12106:469:0"
+                            "src": "12367:469:6"
                           }
                         ]
                       }
                     },
-                    "id": 1152,
+                    "id": 1558,
                     "nodeType": "IfStatement",
-                    "src": "11532:1053:0",
+                    "src": "11793:1053:6",
                     "trueBody": {
-                      "id": 1096,
+                      "id": 1502,
                       "nodeType": "Block",
-                      "src": "11567:483:0",
+                      "src": "11828:483:6",
                       "statements": [
                         {
                           "clauses": [
                             {
                               "block": {
-                                "id": 1068,
+                                "id": 1474,
                                 "nodeType": "Block",
-                                "src": "11662:111:0",
+                                "src": "11923:111:6",
                                 "statements": [
                                   {
                                     "eventCall": {
                                       "arguments": [
                                         {
-                                          "id": 1061,
+                                          "id": 1467,
                                           "name": "tokenType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 962,
-                                          "src": "11708:9:0",
+                                          "referencedDeclaration": 1368,
+                                          "src": "11969:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         },
                                         {
-                                          "id": 1062,
+                                          "id": 1468,
                                           "name": "contractAddress",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 964,
-                                          "src": "11719:15:0",
+                                          "referencedDeclaration": 1370,
+                                          "src": "11980:15:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
                                           }
                                         },
                                         {
-                                          "id": 1063,
+                                          "id": 1469,
                                           "name": "tokenId",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 966,
-                                          "src": "11736:7:0",
+                                          "referencedDeclaration": 1372,
+                                          "src": "11997:7:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
                                           }
                                         },
                                         {
-                                          "id": 1064,
+                                          "id": 1470,
                                           "name": "dest",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 968,
-                                          "src": "11745:4:0",
+                                          "referencedDeclaration": 1374,
+                                          "src": "12006:4:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
                                           }
                                         },
                                         {
-                                          "id": 1065,
+                                          "id": 1471,
                                           "name": "amount",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 970,
-                                          "src": "11751:6:0",
+                                          "referencedDeclaration": 1376,
+                                          "src": "12012:6:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
@@ -65559,7 +68067,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           },
                                           {
@@ -65579,18 +68087,18 @@
                                             "typeString": "uint256"
                                           }
                                         ],
-                                        "id": 1060,
+                                        "id": 1466,
                                         "name": "TokenTransferSucceeded",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2261,
-                                        "src": "11685:22:0",
+                                        "referencedDeclaration": 2692,
+                                        "src": "11946:22:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                           "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                         }
                                       },
-                                      "id": 1066,
+                                      "id": 1472,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -65598,100 +68106,100 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "11685:73:0",
+                                      "src": "11946:73:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_tuple$__$",
                                         "typeString": "tuple()"
                                       }
                                     },
-                                    "id": 1067,
+                                    "id": 1473,
                                     "nodeType": "EmitStatement",
-                                    "src": "11680:78:0"
+                                    "src": "11941:78:6"
                                   }
                                 ]
                               },
                               "errorName": "",
-                              "id": 1069,
+                              "id": 1475,
                               "nodeType": "TryCatchClause",
-                              "src": "11662:111:0"
+                              "src": "11923:111:6"
                             },
                             {
                               "block": {
-                                "id": 1082,
+                                "id": 1488,
                                 "nodeType": "Block",
-                                "src": "11807:115:0",
+                                "src": "12068:115:6",
                                 "statements": [
                                   {
                                     "eventCall": {
                                       "arguments": [
                                         {
-                                          "id": 1074,
+                                          "id": 1480,
                                           "name": "tokenType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 962,
-                                          "src": "11849:9:0",
+                                          "referencedDeclaration": 1368,
+                                          "src": "12110:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         },
                                         {
-                                          "id": 1075,
+                                          "id": 1481,
                                           "name": "contractAddress",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 964,
-                                          "src": "11860:15:0",
+                                          "referencedDeclaration": 1370,
+                                          "src": "12121:15:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
                                           }
                                         },
                                         {
-                                          "id": 1076,
+                                          "id": 1482,
                                           "name": "tokenId",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 966,
-                                          "src": "11877:7:0",
+                                          "referencedDeclaration": 1372,
+                                          "src": "12138:7:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
                                           }
                                         },
                                         {
-                                          "id": 1077,
+                                          "id": 1483,
                                           "name": "dest",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 968,
-                                          "src": "11886:4:0",
+                                          "referencedDeclaration": 1374,
+                                          "src": "12147:4:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
                                           }
                                         },
                                         {
-                                          "id": 1078,
+                                          "id": 1484,
                                           "name": "amount",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 970,
-                                          "src": "11892:6:0",
+                                          "referencedDeclaration": 1376,
+                                          "src": "12153:6:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
                                           }
                                         },
                                         {
-                                          "id": 1079,
+                                          "id": 1485,
                                           "name": "reason",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 1071,
-                                          "src": "11900:6:0",
+                                          "referencedDeclaration": 1477,
+                                          "src": "12161:6:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_string_memory_ptr",
                                             "typeString": "string memory"
@@ -65701,7 +68209,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           },
                                           {
@@ -65725,18 +68233,18 @@
                                             "typeString": "string memory"
                                           }
                                         ],
-                                        "id": 1073,
+                                        "id": 1479,
                                         "name": "TokenTransferError",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2248,
-                                        "src": "11830:18:0",
+                                        "referencedDeclaration": 2679,
+                                        "src": "12091:18:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                           "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                         }
                                       },
-                                      "id": 1080,
+                                      "id": 1486,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -65744,35 +68252,35 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "11830:77:0",
+                                      "src": "12091:77:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_tuple$__$",
                                         "typeString": "tuple()"
                                       }
                                     },
-                                    "id": 1081,
+                                    "id": 1487,
                                     "nodeType": "EmitStatement",
-                                    "src": "11825:82:0"
+                                    "src": "12086:82:6"
                                   }
                                 ]
                               },
                               "errorName": "Error",
-                              "id": 1083,
+                              "id": 1489,
                               "nodeType": "TryCatchClause",
                               "parameters": {
-                                "id": 1072,
+                                "id": 1478,
                                 "nodeType": "ParameterList",
                                 "parameters": [
                                   {
                                     "constant": false,
-                                    "id": 1071,
+                                    "id": 1477,
                                     "mutability": "mutable",
                                     "name": "reason",
-                                    "nameLocation": "11800:6:0",
+                                    "nameLocation": "12061:6:6",
                                     "nodeType": "VariableDeclaration",
-                                    "scope": 1083,
-                                    "src": "11786:20:0",
+                                    "scope": 1489,
+                                    "src": "12047:20:6",
                                     "stateVariable": false,
                                     "storageLocation": "memory",
                                     "typeDescriptions": {
@@ -65780,10 +68288,10 @@
                                       "typeString": "string"
                                     },
                                     "typeName": {
-                                      "id": 1070,
+                                      "id": 1476,
                                       "name": "string",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "11786:6:0",
+                                      "src": "12047:6:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_string_storage_ptr",
                                         "typeString": "string"
@@ -65792,74 +68300,74 @@
                                     "visibility": "internal"
                                   }
                                 ],
-                                "src": "11785:22:0"
+                                "src": "12046:22:6"
                               },
-                              "src": "11774:148:0"
+                              "src": "12035:148:6"
                             },
                             {
                               "block": {
-                                "id": 1093,
+                                "id": 1499,
                                 "nodeType": "Block",
-                                "src": "11929:111:0",
+                                "src": "12190:111:6",
                                 "statements": [
                                   {
                                     "eventCall": {
                                       "arguments": [
                                         {
-                                          "id": 1085,
+                                          "id": 1491,
                                           "name": "tokenType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 962,
-                                          "src": "11971:9:0",
+                                          "referencedDeclaration": 1368,
+                                          "src": "12232:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         },
                                         {
-                                          "id": 1086,
+                                          "id": 1492,
                                           "name": "contractAddress",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 964,
-                                          "src": "11982:15:0",
+                                          "referencedDeclaration": 1370,
+                                          "src": "12243:15:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
                                           }
                                         },
                                         {
-                                          "id": 1087,
+                                          "id": 1493,
                                           "name": "tokenId",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 966,
-                                          "src": "11999:7:0",
+                                          "referencedDeclaration": 1372,
+                                          "src": "12260:7:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
                                           }
                                         },
                                         {
-                                          "id": 1088,
+                                          "id": 1494,
                                           "name": "dest",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 968,
-                                          "src": "12008:4:0",
+                                          "referencedDeclaration": 1374,
+                                          "src": "12269:4:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
                                           }
                                         },
                                         {
-                                          "id": 1089,
+                                          "id": 1495,
                                           "name": "amount",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 970,
-                                          "src": "12014:6:0",
+                                          "referencedDeclaration": 1376,
+                                          "src": "12275:6:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
@@ -65867,14 +68375,14 @@
                                         },
                                         {
                                           "hexValue": "",
-                                          "id": 1090,
+                                          "id": 1496,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "string",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "12022:2:0",
+                                          "src": "12283:2:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
                                             "typeString": "literal_string \"\""
@@ -65885,7 +68393,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           },
                                           {
@@ -65909,18 +68417,18 @@
                                             "typeString": "literal_string \"\""
                                           }
                                         ],
-                                        "id": 1084,
+                                        "id": 1490,
                                         "name": "TokenTransferError",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2248,
-                                        "src": "11952:18:0",
+                                        "referencedDeclaration": 2679,
+                                        "src": "12213:18:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                           "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                         }
                                       },
-                                      "id": 1091,
+                                      "id": 1497,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -65928,23 +68436,23 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "11952:73:0",
+                                      "src": "12213:73:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_tuple$__$",
                                         "typeString": "tuple()"
                                       }
                                     },
-                                    "id": 1092,
+                                    "id": 1498,
                                     "nodeType": "EmitStatement",
-                                    "src": "11947:78:0"
+                                    "src": "12208:78:6"
                                   }
                                 ]
                               },
                               "errorName": "",
-                              "id": 1094,
+                              "id": 1500,
                               "nodeType": "TryCatchClause",
-                              "src": "11923:117:0"
+                              "src": "12184:117:6"
                             }
                           ],
                           "externalCall": {
@@ -65952,14 +68460,14 @@
                               {
                                 "arguments": [
                                   {
-                                    "id": 1054,
+                                    "id": 1460,
                                     "name": "this",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 4294967268,
-                                    "src": "11635:4:0",
+                                    "src": "11896:4:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                       "typeString": "contract ONEWallet"
                                     }
                                   }
@@ -65967,30 +68475,30 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2161",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
                                       "typeString": "contract ONEWallet"
                                     }
                                   ],
-                                  "id": 1053,
+                                  "id": 1459,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "11627:7:0",
+                                  "src": "11888:7:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_address_$",
                                     "typeString": "type(address)"
                                   },
                                   "typeName": {
-                                    "id": 1052,
+                                    "id": 1458,
                                     "name": "address",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "11627:7:0",
+                                    "src": "11888:7:6",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 1055,
+                                "id": 1461,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -65998,7 +68506,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "11627:13:0",
+                                "src": "11888:13:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_address",
@@ -66006,36 +68514,36 @@
                                 }
                               },
                               {
-                                "id": 1056,
+                                "id": 1462,
                                 "name": "dest",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 968,
-                                "src": "11642:4:0",
+                                "referencedDeclaration": 1374,
+                                "src": "11903:4:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_address",
                                   "typeString": "address"
                                 }
                               },
                               {
-                                "id": 1057,
+                                "id": 1463,
                                 "name": "tokenId",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 966,
-                                "src": "11648:7:0",
+                                "referencedDeclaration": 1372,
+                                "src": "11909:7:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
                                 }
                               },
                               {
-                                "id": 1058,
+                                "id": 1464,
                                 "name": "data",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 972,
-                                "src": "11657:4:0",
+                                "referencedDeclaration": 1378,
+                                "src": "11918:4:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes_memory_ptr",
                                   "typeString": "bytes memory"
@@ -66064,12 +68572,12 @@
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 1049,
+                                    "id": 1455,
                                     "name": "contractAddress",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 964,
-                                    "src": "11593:15:0",
+                                    "referencedDeclaration": 1370,
+                                    "src": "11854:15:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_address",
                                       "typeString": "address"
@@ -66083,18 +68591,18 @@
                                       "typeString": "address"
                                     }
                                   ],
-                                  "id": 1048,
+                                  "id": 1454,
                                   "name": "IERC721",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 3786,
-                                  "src": "11585:7:0",
+                                  "referencedDeclaration": 356,
+                                  "src": "11846:7:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_type$_t_contract$_IERC721_$3786_$",
+                                    "typeIdentifier": "t_type$_t_contract$_IERC721_$356_$",
                                     "typeString": "type(contract IERC721)"
                                   }
                                 },
-                                "id": 1050,
+                                "id": 1456,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -66102,28 +68610,28 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "11585:24:0",
+                                "src": "11846:24:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_contract$_IERC721_$3786",
+                                  "typeIdentifier": "t_contract$_IERC721_$356",
                                   "typeString": "contract IERC721"
                                 }
                               },
-                              "id": 1051,
+                              "id": 1457,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
                               "lValueRequested": false,
                               "memberName": "safeTransferFrom",
                               "nodeType": "MemberAccess",
-                              "referencedDeclaration": 3785,
-                              "src": "11585:41:0",
+                              "referencedDeclaration": 355,
+                              "src": "11846:41:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
                                 "typeString": "function (address,address,uint256,bytes memory) external"
                               }
                             },
-                            "id": 1059,
+                            "id": 1465,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -66131,91 +68639,91 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "11585:77:0",
+                            "src": "11846:77:6",
                             "tryCall": true,
                             "typeDescriptions": {
                               "typeIdentifier": "t_tuple$__$",
                               "typeString": "tuple()"
                             }
                           },
-                          "id": 1095,
+                          "id": 1501,
                           "nodeType": "TryStatement",
-                          "src": "11581:459:0"
+                          "src": "11842:459:6"
                         }
                       ]
                     }
                   },
-                  "id": 1153,
+                  "id": 1559,
                   "nodeType": "IfStatement",
-                  "src": "10773:1812:0",
+                  "src": "11034:1812:6",
                   "trueBody": {
-                    "id": 1043,
+                    "id": 1449,
                     "nodeType": "Block",
-                    "src": "10807:719:0",
+                    "src": "11068:719:6",
                     "statements": [
                       {
                         "clauses": [
                           {
                             "block": {
-                              "id": 1015,
+                              "id": 1421,
                               "nodeType": "Block",
-                              "src": "10894:355:0",
+                              "src": "11155:355:6",
                               "statements": [
                                 {
                                   "condition": {
-                                    "id": 989,
+                                    "id": 1395,
                                     "name": "success",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 987,
-                                    "src": "10916:7:0",
+                                    "referencedDeclaration": 1393,
+                                    "src": "11177:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bool",
                                       "typeString": "bool"
                                     }
                                   },
-                                  "id": 1006,
+                                  "id": 1412,
                                   "nodeType": "IfStatement",
-                                  "src": "10912:230:0",
+                                  "src": "11173:230:6",
                                   "trueBody": {
-                                    "id": 1005,
+                                    "id": 1411,
                                     "nodeType": "Block",
-                                    "src": "10925:217:0",
+                                    "src": "11186:217:6",
                                     "statements": [
                                       {
                                         "expression": {
                                           "arguments": [
                                             {
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+                                              "id": 1397,
                                               "name": "tokenType",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 962,
-                                              "src": "10959:9:0",
+                                              "referencedDeclaration": 1368,
+                                              "src": "11220:9:6",
                                               "typeDescriptions": {
-                                                "typeIdentifier": "t_enum$_TokenType_$2176",
+                                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               }
                                             },
                                             {
-                                              "id": 992,
+                                              "id": 1398,
                                               "name": "contractAddress",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 964,
-                                              "src": "10970:15:0",
+                                              "referencedDeclaration": 1370,
+                                              "src": "11231:15:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_address",
                                                 "typeString": "address"
                                               }
                                             },
                                             {
-                                              "id": 993,
+                                              "id": 1399,
                                               "name": "tokenId",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 966,
-                                              "src": "10987:7:0",
+                                              "referencedDeclaration": 1372,
+                                              "src": "11248:7:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_uint256",
                                                 "typeString": "uint256"
@@ -66225,7 +68733,7 @@
                                           "expression": {
                                             "argumentTypes": [
                                               {
-                                                "typeIdentifier": "t_enum$_TokenType_$2176",
+                                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               },
                                               {
@@ -66237,18 +68745,18 @@
                                                 "typeString": "uint256"
                                               }
                                             ],
-                                            "id": 990,
+                                            "id": 1396,
                                             "name": "_trackToken",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 2658,
-                                            "src": "10947:11:0",
+                                            "referencedDeclaration": 3089,
+                                            "src": "11208:11:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$returns$__$",
+                                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                                               "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                                             }
                                           },
-                                          "id": 994,
+                                          "id": 1400,
                                           "isConstant": false,
                                           "isLValue": false,
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@@ -66256,75 +68764,75 @@
                                           "lValueRequested": false,
                                           "names": [],
                                           "nodeType": "FunctionCall",
-                                          "src": "10947:48:0",
+                                          "src": "11208:48:6",
                                           "tryCall": false,
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_tuple$__$",
                                             "typeString": "tuple()"
                                           }
                                         },
-                                        "id": 995,
+                                        "id": 1401,
                                         "nodeType": "ExpressionStatement",
-                                        "src": "10947:48:0"
+                                        "src": "11208:48:6"
                                       },
                                       {
                                         "eventCall": {
                                           "arguments": [
                                             {
-                                              "id": 997,
+                                              "id": 1403,
                                               "name": "tokenType",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 962,
-                                              "src": "11045:9:0",
+                                              "referencedDeclaration": 1368,
+                                              "src": "11306:9:6",
                                               "typeDescriptions": {
-                                                "typeIdentifier": "t_enum$_TokenType_$2176",
+                                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               }
                                             },
                                             {
-                                              "id": 998,
+                                              "id": 1404,
                                               "name": "contractAddress",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 964,
-                                              "src": "11056:15:0",
+                                              "referencedDeclaration": 1370,
+                                              "src": "11317:15:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_address",
                                                 "typeString": "address"
                                               }
                                             },
                                             {
-                                              "id": 999,
+                                              "id": 1405,
                                               "name": "tokenId",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 966,
-                                              "src": "11073:7:0",
+                                              "referencedDeclaration": 1372,
+                                              "src": "11334:7:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_uint256",
                                                 "typeString": "uint256"
                                               }
                                             },
                                             {
-                                              "id": 1000,
+                                              "id": 1406,
                                               "name": "dest",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 968,
-                                              "src": "11082:4:0",
+                                              "referencedDeclaration": 1374,
+                                              "src": "11343:4:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_address",
                                                 "typeString": "address"
                                               }
                                             },
                                             {
-                                              "id": 1001,
+                                              "id": 1407,
                                               "name": "amount",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 970,
-                                              "src": "11088:6:0",
+                                              "referencedDeclaration": 1376,
+                                              "src": "11349:6:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_uint256",
                                                 "typeString": "uint256"
@@ -66334,7 +68842,7 @@
                                           "expression": {
                                             "argumentTypes": [
                                               {
-                                                "typeIdentifier": "t_enum$_TokenType_$2176",
+                                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               },
                                               {
@@ -66354,18 +68862,18 @@
                                                 "typeString": "uint256"
                                               }
                                             ],
-                                            "id": 996,
+                                            "id": 1402,
                                             "name": "TokenTransferSucceeded",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 2261,
-                                            "src": "11022:22:0",
+                                            "referencedDeclaration": 2692,
+                                            "src": "11283:22:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                              "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                               "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                             }
                                           },
-                                          "id": 1002,
+                                          "id": 1408,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": false,
@@ -66373,22 +68881,22 @@
                                           "lValueRequested": false,
                                           "names": [],
                                           "nodeType": "FunctionCall",
-                                          "src": "11022:73:0",
+                                          "src": "11283:73:6",
                                           "tryCall": false,
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_tuple$__$",
                                             "typeString": "tuple()"
                                           }
                                         },
-                                        "id": 1003,
+                                        "id": 1409,
                                         "nodeType": "EmitStatement",
-                                        "src": "11017:78:0"
+                                        "src": "11278:78:6"
                                       },
                                       {
-                                        "functionReturnParameters": 974,
-                                        "id": 1004,
+                                        "functionReturnParameters": 1380,
+                                        "id": 1410,
                                         "nodeType": "Return",
-                                        "src": "11117:7:0"
+                                        "src": "11378:7:6"
                                       }
                                     ]
                                   }
@@ -66397,60 +68905,60 @@
                                   "eventCall": {
                                     "arguments": [
                                       {
-                                        "id": 1008,
+                                        "id": 1414,
                                         "name": "tokenType",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 962,
-                                        "src": "11184:9:0",
+                                        "referencedDeclaration": 1368,
+                                        "src": "11445:9:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                                          "typeIdentifier": "t_enum$_TokenType_$2607",
                                           "typeString": "enum TokenTracker.TokenType"
                                         }
                                       },
                                       {
-                                        "id": 1009,
+                                        "id": 1415,
                                         "name": "contractAddress",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 964,
-                                        "src": "11195:15:0",
+                                        "referencedDeclaration": 1370,
+                                        "src": "11456:15:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_address",
                                           "typeString": "address"
                                         }
                                       },
                                       {
-                                        "id": 1010,
+                                        "id": 1416,
                                         "name": "tokenId",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 966,
-                                        "src": "11212:7:0",
+                                        "referencedDeclaration": 1372,
+                                        "src": "11473:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
                                         }
                                       },
                                       {
-                                        "id": 1011,
+                                        "id": 1417,
                                         "name": "dest",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 968,
-                                        "src": "11221:4:0",
+                                        "referencedDeclaration": 1374,
+                                        "src": "11482:4:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_address",
                                           "typeString": "address"
                                         }
                                       },
                                       {
-                                        "id": 1012,
+                                        "id": 1418,
                                         "name": "amount",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 970,
-                                        "src": "11227:6:0",
+                                        "referencedDeclaration": 1376,
+                                        "src": "11488:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
@@ -66460,7 +68968,7 @@
                                     "expression": {
                                       "argumentTypes": [
                                         {
-                                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                                          "typeIdentifier": "t_enum$_TokenType_$2607",
                                           "typeString": "enum TokenTracker.TokenType"
                                         },
                                         {
@@ -66480,18 +68988,18 @@
                                           "typeString": "uint256"
                                         }
                                       ],
-                                      "id": 1007,
+                                      "id": 1413,
                                       "name": "TokenTransferFailed",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2233,
-                                      "src": "11164:19:0",
+                                      "referencedDeclaration": 2664,
+                                      "src": "11425:19:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                         "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                       }
                                     },
-                                    "id": 1013,
+                                    "id": 1419,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -66499,35 +69007,35 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "11164:70:0",
+                                    "src": "11425:70:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_tuple$__$",
                                       "typeString": "tuple()"
                                     }
                                   },
-                                  "id": 1014,
+                                  "id": 1420,
                                   "nodeType": "EmitStatement",
-                                  "src": "11159:75:0"
+                                  "src": "11420:75:6"
                                 }
                               ]
                             },
                             "errorName": "",
-                            "id": 1016,
+                            "id": 1422,
                             "nodeType": "TryCatchClause",
                             "parameters": {
-                              "id": 988,
+                              "id": 1394,
                               "nodeType": "ParameterList",
                               "parameters": [
                                 {
                                   "constant": false,
-                                  "id": 987,
+                                  "id": 1393,
                                   "mutability": "mutable",
                                   "name": "success",
-                                  "nameLocation": "10886:7:0",
+                                  "nameLocation": "11147:7:6",
                                   "nodeType": "VariableDeclaration",
-                                  "scope": 1016,
-                                  "src": "10881:12:0",
+                                  "scope": 1422,
+                                  "src": "11142:12:6",
                                   "stateVariable": false,
                                   "storageLocation": "default",
                                   "typeDescriptions": {
@@ -66535,10 +69043,10 @@
                                     "typeString": "bool"
                                   },
                                   "typeName": {
-                                    "id": 986,
+                                    "id": 1392,
                                     "name": "bool",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "10881:4:0",
+                                    "src": "11142:4:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bool",
                                       "typeString": "bool"
@@ -66547,86 +69055,86 @@
                                   "visibility": "internal"
                                 }
                               ],
-                              "src": "10880:14:0"
+                              "src": "11141:14:6"
                             },
-                            "src": "10872:377:0"
+                            "src": "11133:377:6"
                           },
                           {
                             "block": {
-                              "id": 1029,
+                              "id": 1435,
                               "nodeType": "Block",
-                              "src": "11283:115:0",
+                              "src": "11544:115:6",
                               "statements": [
                                 {
                                   "eventCall": {
                                     "arguments": [
                                       {
-                                        "id": 1021,
+                                        "id": 1427,
                                         "name": "tokenType",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 962,
-                                        "src": "11325:9:0",
+                                        "referencedDeclaration": 1368,
+                                        "src": "11586:9:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                                          "typeIdentifier": "t_enum$_TokenType_$2607",
                                           "typeString": "enum TokenTracker.TokenType"
                                         }
                                       },
                                       {
-                                        "id": 1022,
+                                        "id": 1428,
                                         "name": "contractAddress",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 964,
-                                        "src": "11336:15:0",
+                                        "referencedDeclaration": 1370,
+                                        "src": "11597:15:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_address",
                                           "typeString": "address"
                                         }
                                       },
                                       {
-                                        "id": 1023,
+                                        "id": 1429,
                                         "name": "tokenId",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 966,
-                                        "src": "11353:7:0",
+                                        "referencedDeclaration": 1372,
+                                        "src": "11614:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
                                         }
                                       },
                                       {
-                                        "id": 1024,
+                                        "id": 1430,
                                         "name": "dest",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 968,
-                                        "src": "11362:4:0",
+                                        "referencedDeclaration": 1374,
+                                        "src": "11623:4:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_address",
                                           "typeString": "address"
                                         }
                                       },
                                       {
-                                        "id": 1025,
+                                        "id": 1431,
                                         "name": "amount",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 970,
-                                        "src": "11368:6:0",
+                                        "referencedDeclaration": 1376,
+                                        "src": "11629:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
                                         }
                                       },
                                       {
-                                        "id": 1026,
+                                        "id": 1432,
                                         "name": "reason",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 1018,
-                                        "src": "11376:6:0",
+                                        "referencedDeclaration": 1424,
+                                        "src": "11637:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_string_memory_ptr",
                                           "typeString": "string memory"
@@ -66636,7 +69144,7 @@
                                     "expression": {
                                       "argumentTypes": [
                                         {
-                                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                                          "typeIdentifier": "t_enum$_TokenType_$2607",
                                           "typeString": "enum TokenTracker.TokenType"
                                         },
                                         {
@@ -66660,18 +69168,18 @@
                                           "typeString": "string memory"
                                         }
                                       ],
-                                      "id": 1020,
+                                      "id": 1426,
                                       "name": "TokenTransferError",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2248,
-                                      "src": "11306:18:0",
+                                      "referencedDeclaration": 2679,
+                                      "src": "11567:18:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                         "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                       }
                                     },
-                                    "id": 1027,
+                                    "id": 1433,
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@@ -66679,35 +69187,35 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "11306:77:0",
+                                    "src": "11567:77:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_tuple$__$",
                                       "typeString": "tuple()"
                                     }
                                   },
-                                  "id": 1028,
+                                  "id": 1434,
                                   "nodeType": "EmitStatement",
-                                  "src": "11301:82:0"
+                                  "src": "11562:82:6"
                                 }
                               ]
                             },
                             "errorName": "Error",
-                            "id": 1030,
+                            "id": 1436,
                             "nodeType": "TryCatchClause",
                             "parameters": {
-                              "id": 1019,
+                              "id": 1425,
                               "nodeType": "ParameterList",
                               "parameters": [
                                 {
                                   "constant": false,
-                                  "id": 1018,
+                                  "id": 1424,
                                   "mutability": "mutable",
                                   "name": "reason",
-                                  "nameLocation": "11276:6:0",
+                                  "nameLocation": "11537:6:6",
                                   "nodeType": "VariableDeclaration",
-                                  "scope": 1030,
-                                  "src": "11262:20:0",
+                                  "scope": 1436,
+                                  "src": "11523:20:6",
                                   "stateVariable": false,
                                   "storageLocation": "memory",
                                   "typeDescriptions": {
@@ -66715,10 +69223,10 @@
                                     "typeString": "string"
                                   },
                                   "typeName": {
-                                    "id": 1017,
+                                    "id": 1423,
                                     "name": "string",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "11262:6:0",
+                                    "src": "11523:6:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_string_storage_ptr",
                                       "typeString": "string"
@@ -66727,74 +69235,74 @@
                                   "visibility": "internal"
                                 }
                               ],
-                              "src": "11261:22:0"
+                              "src": "11522:22:6"
                             },
-                            "src": "11250:148:0"
+                            "src": "11511:148:6"
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                           {
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-                              "id": 1040,
+                              "id": 1446,
                               "nodeType": "Block",
-                              "src": "11405:111:0",
+                              "src": "11666:111:6",
                               "statements": [
                                 {
                                   "eventCall": {
                                     "arguments": [
                                       {
-                                        "id": 1032,
+                                        "id": 1438,
                                         "name": "tokenType",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 962,
-                                        "src": "11447:9:0",
+                                        "referencedDeclaration": 1368,
+                                        "src": "11708:9:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                                          "typeIdentifier": "t_enum$_TokenType_$2607",
                                           "typeString": "enum TokenTracker.TokenType"
                                         }
                                       },
                                       {
-                                        "id": 1033,
+                                        "id": 1439,
                                         "name": "contractAddress",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 964,
-                                        "src": "11458:15:0",
+                                        "referencedDeclaration": 1370,
+                                        "src": "11719:15:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_address",
                                           "typeString": "address"
                                         }
                                       },
                                       {
-                                        "id": 1034,
+                                        "id": 1440,
                                         "name": "tokenId",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 966,
-                                        "src": "11475:7:0",
+                                        "referencedDeclaration": 1372,
+                                        "src": "11736:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
                                         }
                                       },
                                       {
-                                        "id": 1035,
+                                        "id": 1441,
                                         "name": "dest",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 968,
-                                        "src": "11484:4:0",
+                                        "referencedDeclaration": 1374,
+                                        "src": "11745:4:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_address",
                                           "typeString": "address"
                                         }
                                       },
                                       {
-                                        "id": 1036,
+                                        "id": 1442,
                                         "name": "amount",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 970,
-                                        "src": "11490:6:0",
+                                        "referencedDeclaration": 1376,
+                                        "src": "11751:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
@@ -66802,14 +69310,14 @@
                                       },
                                       {
                                         "hexValue": "",
-                                        "id": 1037,
+                                        "id": 1443,
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                                         "kind": "string",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "11498:2:0",
+                                        "src": "11759:2:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
                                           "typeString": "literal_string \"\""
@@ -66820,7 +69328,7 @@
                                     "expression": {
                                       "argumentTypes": [
                                         {
-                                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                                          "typeIdentifier": "t_enum$_TokenType_$2607",
                                           "typeString": "enum TokenTracker.TokenType"
                                         },
                                         {
@@ -66844,18 +69352,18 @@
                                           "typeString": "literal_string \"\""
                                         }
                                       ],
-                                      "id": 1031,
+                                      "id": 1437,
                                       "name": "TokenTransferError",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2248,
-                                      "src": "11428:18:0",
+                                      "referencedDeclaration": 2679,
+                                      "src": "11689:18:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                         "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                       }
                                     },
-                                    "id": 1038,
+                                    "id": 1444,
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@@ -66863,46 +69371,46 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "11428:73:0",
+                                    "src": "11689:73:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_tuple$__$",
                                       "typeString": "tuple()"
                                     }
                                   },
-                                  "id": 1039,
+                                  "id": 1445,
                                   "nodeType": "EmitStatement",
-                                  "src": "11423:78:0"
+                                  "src": "11684:78:6"
                                 }
                               ]
                             },
                             "errorName": "",
-                            "id": 1041,
+                            "id": 1447,
                             "nodeType": "TryCatchClause",
-                            "src": "11399:117:0"
+                            "src": "11660:117:6"
                           }
                         ],
                         "externalCall": {
                           "arguments": [
                             {
-                              "id": 983,
+                              "id": 1389,
                               "name": "dest",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 968,
-                              "src": "10858:4:0",
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+                              "src": "11119:4:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
                                 "typeString": "address"
                               }
                             },
                             {
-                              "id": 984,
+                              "id": 1390,
                               "name": "amount",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 970,
-                              "src": "10864:6:0",
+                              "referencedDeclaration": 1376,
+                              "src": "11125:6:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -66923,12 +69431,12 @@
                             "expression": {
                               "arguments": [
                                 {
-                                  "id": 980,
+                                  "id": 1386,
                                   "name": "contractAddress",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 964,
-                                  "src": "10832:15:0",
+                                  "referencedDeclaration": 1370,
+                                  "src": "11093:15:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
@@ -66942,18 +69450,18 @@
                                     "typeString": "address"
                                   }
                                 ],
-                                "id": 979,
+                                "id": 1385,
                                 "name": "IERC20",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3670,
-                                "src": "10825:6:0",
+                                "referencedDeclaration": 240,
+                                "src": "11086:6:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_type$_t_contract$_IERC20_$3670_$",
+                                  "typeIdentifier": "t_type$_t_contract$_IERC20_$240_$",
                                   "typeString": "type(contract IERC20)"
                                 }
                               },
-                              "id": 981,
+                              "id": 1387,
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@@ -66961,28 +69469,28 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "10825:23:0",
+                              "src": "11086:23:6",
                               "tryCall": false,
                               "typeDescriptions": {
-                                "typeIdentifier": "t_contract$_IERC20_$3670",
+                                "typeIdentifier": "t_contract$_IERC20_$240",
                                 "typeString": "contract IERC20"
                               }
                             },
-                            "id": 982,
+                            "id": 1388,
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                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "transfer",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 3619,
-                            "src": "10825:32:0",
+                            "referencedDeclaration": 189,
+                            "src": "11086:32:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$_t_bool_$",
                               "typeString": "function (address,uint256) external returns (bool)"
                             }
                           },
-                          "id": 985,
+                          "id": 1391,
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@@ -66990,62 +69498,62 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "10825:46:0",
+                          "src": "11086:46:6",
                           "tryCall": true,
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "id": 1042,
+                        "id": 1448,
                         "nodeType": "TryStatement",
-                        "src": "10821:695:0"
+                        "src": "11082:695:6"
                       }
                     ]
                   }
                 }
               ]
             },
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+            "id": 1561,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_transferToken",
-            "nameLocation": "10627:14:0",
+            "nameLocation": "10888:14:6",
             "nodeType": "FunctionDefinition",
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+                  "src": "10903:19:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2176",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
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                     "nodeType": "UserDefinedTypeName",
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                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
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                     },
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                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2176",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -67053,13 +69561,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 964,
+                  "id": 1370,
                   "mutability": "mutable",
                   "name": "contractAddress",
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+                  "nameLocation": "10932:15:6",
                   "nodeType": "VariableDeclaration",
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-                  "src": "10663:23:0",
+                  "scope": 1561,
+                  "src": "10924:23:6",
                   "stateVariable": false,
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@@ -67067,10 +69575,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 963,
+                    "id": 1369,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10663:7:0",
+                    "src": "10924:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -67081,13 +69589,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 966,
+                  "id": 1372,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "10696:7:0",
+                  "nameLocation": "10957:7:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1155,
-                  "src": "10688:15:0",
+                  "scope": 1561,
+                  "src": "10949:15:6",
                   "stateVariable": false,
                   "storageLocation": "default",
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@@ -67095,10 +69603,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 965,
+                    "id": 1371,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10688:7:0",
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                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -67108,13 +69616,13 @@
                 },
                 {
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                   "mutability": "mutable",
                   "name": "dest",
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-                  "src": "10705:12:0",
+                  "scope": 1561,
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                   "stateVariable": false,
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@@ -67122,10 +69630,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 967,
+                    "id": 1373,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10705:7:0",
+                    "src": "10966:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -67136,13 +69644,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 970,
+                  "id": 1376,
                   "mutability": "mutable",
                   "name": "amount",
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+                  "nameLocation": "10988:6:6",
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                   "stateVariable": false,
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@@ -67150,10 +69658,10 @@
                     "typeString": "uint256"
                   },
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-                    "id": 969,
+                    "id": 1375,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10719:7:0",
+                    "src": "10980:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -67163,13 +69671,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 972,
+                  "id": 1378,
                   "mutability": "mutable",
                   "name": "data",
-                  "nameLocation": "10748:4:0",
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-                  "src": "10735:17:0",
+                  "scope": 1561,
+                  "src": "10996:17:6",
                   "stateVariable": false,
                   "storageLocation": "memory",
                   "typeDescriptions": {
@@ -67177,10 +69685,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 971,
+                    "id": 1377,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10735:5:0",
+                    "src": "10996:5:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -67189,40 +69697,40 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "10641:112:0"
+              "src": "10902:112:6"
             },
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+              "id": 1380,
               "nodeType": "ParameterList",
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-              "src": "10763:0:0"
+              "src": "11024:0:6"
             },
-            "scope": 2161,
-            "src": "10618:1973:0",
+            "scope": 2592,
+            "src": "10879:1973:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 1336,
+              "id": 1741,
               "nodeType": "Block",
-              "src": "12951:1011:0",
+              "src": "13212:1016:6",
               "statements": [
                 {
                   "assignments": [
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+                    1592
                   ],
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                     {
                       "constant": false,
-                      "id": 1186,
+                      "id": 1592,
                       "mutability": "mutable",
                       "name": "hash",
-                      "nameLocation": "12969:4:0",
+                      "nameLocation": "13230:4:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1336,
-                      "src": "12961:12:0",
+                      "scope": 1741,
+                      "src": "13222:12:6",
                       "stateVariable": false,
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@@ -67230,10 +69738,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 1185,
+                        "id": 1591,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "12961:7:0",
+                        "src": "13222:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -67242,18 +69750,18 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 1202,
+                  "id": 1608,
                   "initialValue": {
                     "arguments": [
                       {
                         "arguments": [
                           {
-                            "id": 1191,
+                            "id": 1597,
                             "name": "neighbor",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1158,
-                            "src": "12999:8:0",
+                            "referencedDeclaration": 1564,
+                            "src": "13260:8:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
@@ -67264,12 +69772,12 @@
                               {
                                 "arguments": [
                                   {
-                                    "id": 1196,
+                                    "id": 1602,
                                     "name": "indexWithNonce",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1160,
-                                    "src": "13024:14:0",
+                                    "referencedDeclaration": 1566,
+                                    "src": "13285:14:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
@@ -67283,26 +69791,26 @@
                                       "typeString": "uint32"
                                     }
                                   ],
-                                  "id": 1195,
+                                  "id": 1601,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "13017:6:0",
+                                  "src": "13278:6:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes4_$",
                                     "typeString": "type(bytes4)"
                                   },
                                   "typeName": {
-                                    "id": 1194,
+                                    "id": 1600,
                                     "name": "bytes4",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "13017:6:0",
+                                    "src": "13278:6:6",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 1197,
+                                "id": 1603,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -67310,7 +69818,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "13017:22:0",
+                                "src": "13278:22:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes4",
@@ -67325,26 +69833,26 @@
                                   "typeString": "bytes4"
                                 }
                               ],
-                              "id": 1193,
+                              "id": 1599,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "13009:7:0",
+                              "src": "13270:7:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 1192,
+                                "id": 1598,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "13009:7:0",
+                                "src": "13270:7:6",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 1198,
+                            "id": 1604,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -67352,7 +69860,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "13009:31:0",
+                            "src": "13270:31:6",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -67360,12 +69868,12 @@
                             }
                           },
                           {
-                            "id": 1199,
+                            "id": 1605,
                             "name": "eotp",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1162,
-                            "src": "13042:4:0",
+                            "referencedDeclaration": 1568,
+                            "src": "13303:4:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
@@ -67388,39 +69896,39 @@
                             }
                           ],
                           "expression": {
-                            "id": 1189,
+                            "id": 1595,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "12986:5:0",
+                            "src": "13247:5:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                               "typeString": "type(bytes storage pointer)"
                             },
                             "typeName": {
-                              "id": 1188,
+                              "id": 1594,
                               "name": "bytes",
                               "nodeType": "ElementaryTypeName",
-                              "src": "12986:5:0",
+                              "src": "13247:5:6",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 1190,
+                          "id": 1596,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "concat",
                           "nodeType": "MemberAccess",
-                          "src": "12986:12:0",
+                          "src": "13247:12:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                             "typeString": "function () pure returns (bytes memory)"
                           }
                         },
-                        "id": 1200,
+                        "id": 1606,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -67428,7 +69936,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "12986:61:0",
+                        "src": "13247:61:6",
                         "tryCall": false,
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_memory_ptr",
@@ -67443,18 +69951,18 @@
                           "typeString": "bytes memory"
                         }
                       ],
-                      "id": 1187,
+                      "id": 1593,
                       "name": "keccak256",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 4294967288,
-                      "src": "12976:9:0",
+                      "src": "13237:9:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                         "typeString": "function (bytes memory) pure returns (bytes32)"
                       }
                     },
-                    "id": 1201,
+                    "id": 1607,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -67462,7 +69970,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "12976:72:0",
+                    "src": "13237:72:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
@@ -67470,22 +69978,22 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "12961:87:0"
+                  "src": "13222:87:6"
                 },
                 {
                   "assignments": [
-                    1204
+                    1610
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 1204,
+                      "id": 1610,
                       "mutability": "mutable",
                       "name": "paramsHash",
-                      "nameLocation": "13066:10:0",
+                      "nameLocation": "13327:10:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1336,
-                      "src": "13058:18:0",
+                      "scope": 1741,
+                      "src": "13319:18:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -67493,10 +70001,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 1203,
+                        "id": 1609,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "13058:7:0",
+                        "src": "13319:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -67505,19 +70013,19 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 1209,
+                  "id": 1615,
                   "initialValue": {
                     "arguments": [
                       {
                         "hexValue": "30",
-                        "id": 1207,
+                        "id": 1613,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "number",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "13087:1:0",
+                        "src": "13348:1:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_rational_0_by_1",
                           "typeString": "int_const 0"
@@ -67532,26 +70040,26 @@
                           "typeString": "int_const 0"
                         }
                       ],
-                      "id": 1206,
+                      "id": 1612,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "ElementaryTypeNameExpression",
-                      "src": "13079:7:0",
+                      "src": "13340:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_type$_t_bytes32_$",
                         "typeString": "type(bytes32)"
                       },
                       "typeName": {
-                        "id": 1205,
+                        "id": 1611,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "13079:7:0",
+                        "src": "13340:7:6",
                         "typeDescriptions": {}
                       }
                     },
-                    "id": 1208,
+                    "id": 1614,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": true,
@@ -67559,7 +70067,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "13079:10:0",
+                    "src": "13340:10:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
@@ -67567,28 +70075,28 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "13058:31:0"
+                  "src": "13319:31:6"
                 },
                 {
                   "condition": {
                     "commonType": {
-                      "typeIdentifier": "t_enum$_OperationType_$103",
+                      "typeIdentifier": "t_enum$_OperationType_$493",
                       "typeString": "enum ONEWallet.OperationType"
                     },
-                    "id": 1213,
+                    "id": 1619,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
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+                      "id": 1616,
                       "name": "operationType",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1165,
-                      "src": "13103:13:0",
+                      "referencedDeclaration": 1571,
+                      "src": "13364:13:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_OperationType_$103",
+                        "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       }
                     },
@@ -67596,32 +70104,32 @@
                     "operator": "==",
                     "rightExpression": {
                       "expression": {
-                        "id": 1211,
+                        "id": 1617,
                         "name": "OperationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 103,
-                        "src": "13120:13:0",
+                        "referencedDeclaration": 493,
+                        "src": "13381:13:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                          "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                           "typeString": "type(enum ONEWallet.OperationType)"
                         }
                       },
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+                      "id": 1618,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "memberName": "TRANSFER",
                       "nodeType": "MemberAccess",
-                      "referencedDeclaration": 100,
-                      "src": "13120:22:0",
+                      "referencedDeclaration": 489,
+                      "src": "13381:22:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_OperationType_$103",
+                        "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       }
                     },
-                    "src": "13103:39:0",
+                    "src": "13364:39:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -67630,23 +70138,23 @@
                   "falseBody": {
                     "condition": {
                       "commonType": {
-                        "typeIdentifier": "t_enum$_OperationType_$103",
+                        "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       },
-                      "id": 1241,
+                      "id": 1647,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "leftExpression": {
-                        "id": 1238,
+                        "id": 1644,
                         "name": "operationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1165,
-                        "src": "13265:13:0",
+                        "referencedDeclaration": 1571,
+                        "src": "13526:13:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         }
                       },
@@ -67654,32 +70162,32 @@
                       "operator": "==",
                       "rightExpression": {
                         "expression": {
-                          "id": 1239,
+                          "id": 1645,
                           "name": "OperationType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 103,
-                          "src": "13282:13:0",
+                          "referencedDeclaration": 493,
+                          "src": "13543:13:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                            "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                             "typeString": "type(enum ONEWallet.OperationType)"
                           }
                         },
-                        "id": 1240,
+                        "id": 1646,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "memberName": "RECOVER",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 102,
-                        "src": "13282:21:0",
+                        "referencedDeclaration": 491,
+                        "src": "13543:21:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         }
                       },
-                      "src": "13265:38:0",
+                      "src": "13526:38:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
@@ -67688,23 +70196,23 @@
                     "falseBody": {
                       "condition": {
                         "commonType": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         },
-                        "id": 1253,
+                        "id": 1658,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
-                          "id": 1250,
+                          "id": 1655,
                           "name": "operationType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1165,
-                          "src": "13363:13:0",
+                          "referencedDeclaration": 1571,
+                          "src": "13629:13:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_OperationType_$103",
+                            "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           }
                         },
@@ -67712,56 +70220,56 @@
                         "operator": "==",
                         "rightExpression": {
                           "expression": {
-                            "id": 1251,
+                            "id": 1656,
                             "name": "OperationType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 103,
-                            "src": "13380:13:0",
+                            "referencedDeclaration": 493,
+                            "src": "13646:13:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                              "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                               "typeString": "type(enum ONEWallet.OperationType)"
                             }
                           },
-                          "id": 1252,
+                          "id": 1657,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "lValueRequested": false,
                           "memberName": "SET_RECOVERY_ADDRESS",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 101,
-                          "src": "13380:34:0",
+                          "referencedDeclaration": 490,
+                          "src": "13646:34:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_OperationType_$103",
+                            "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           }
                         },
-                        "src": "13363:51:0",
+                        "src": "13629:51:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
                         }
                       },
                       "falseBody": {
-                        "id": 1328,
+                        "id": 1733,
                         "nodeType": "Block",
-                        "src": "13516:405:0",
+                        "src": "13782:405:6",
                         "statements": [
                           {
                             "assignments": [
-                              1275
+                              1680
                             ],
                             "declarations": [
                               {
                                 "constant": false,
-                                "id": 1275,
+                                "id": 1680,
                                 "mutability": "mutable",
                                 "name": "packed",
-                                "nameLocation": "13543:6:0",
+                                "nameLocation": "13809:6:6",
                                 "nodeType": "VariableDeclaration",
-                                "scope": 1328,
-                                "src": "13530:19:0",
+                                "scope": 1733,
+                                "src": "13796:19:6",
                                 "stateVariable": false,
                                 "storageLocation": "memory",
                                 "typeDescriptions": {
@@ -67769,10 +70277,10 @@
                                   "typeString": "bytes"
                                 },
                                 "typeName": {
-                                  "id": 1274,
+                                  "id": 1679,
                                   "name": "bytes",
                                   "nodeType": "ElementaryTypeName",
-                                  "src": "13530:5:0",
+                                  "src": "13796:5:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes_storage_ptr",
                                     "typeString": "bytes"
@@ -67781,7 +70289,7 @@
                                 "visibility": "internal"
                               }
                             ],
-                            "id": 1317,
+                            "id": 1722,
                             "initialValue": {
                               "arguments": [
                                 {
@@ -67789,14 +70297,14 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 1283,
+                                          "id": 1688,
                                           "name": "operationType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 1165,
-                                          "src": "13598:13:0",
+                                          "referencedDeclaration": 1571,
+                                          "src": "13864:13:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_OperationType_$103",
+                                            "typeIdentifier": "t_enum$_OperationType_$493",
                                             "typeString": "enum ONEWallet.OperationType"
                                           }
                                         }
@@ -67804,30 +70312,30 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_OperationType_$103",
+                                            "typeIdentifier": "t_enum$_OperationType_$493",
                                             "typeString": "enum ONEWallet.OperationType"
                                           }
                                         ],
-                                        "id": 1282,
+                                        "id": 1687,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "13590:7:0",
+                                        "src": "13856:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_uint256_$",
                                           "typeString": "type(uint256)"
                                         },
                                         "typeName": {
-                                          "id": 1281,
+                                          "id": 1686,
                                           "name": "uint256",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "13590:7:0",
+                                          "src": "13856:7:6",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 1284,
+                                      "id": 1689,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -67835,7 +70343,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "13590:22:0",
+                                      "src": "13856:22:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
@@ -67850,26 +70358,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1280,
+                                    "id": 1685,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13582:7:0",
+                                    "src": "13848:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 1279,
+                                      "id": 1684,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13582:7:0",
+                                      "src": "13848:7:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1285,
+                                  "id": 1690,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -67877,7 +70385,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "13582:31:0",
+                                  "src": "13848:31:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -67889,14 +70397,14 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 1290,
+                                          "id": 1695,
                                           "name": "tokenType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 1168,
-                                          "src": "13647:9:0",
+                                          "referencedDeclaration": 1574,
+                                          "src": "13913:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         }
@@ -67904,30 +70412,30 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2176",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         ],
-                                        "id": 1289,
+                                        "id": 1694,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "13639:7:0",
+                                        "src": "13905:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_uint256_$",
                                           "typeString": "type(uint256)"
                                         },
                                         "typeName": {
-                                          "id": 1288,
+                                          "id": 1693,
                                           "name": "uint256",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "13639:7:0",
+                                          "src": "13905:7:6",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 1291,
+                                      "id": 1696,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -67935,7 +70443,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "13639:18:0",
+                                      "src": "13905:18:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
@@ -67950,26 +70458,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1287,
+                                    "id": 1692,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13631:7:0",
+                                    "src": "13897:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 1286,
+                                      "id": 1691,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13631:7:0",
+                                      "src": "13897:7:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1292,
+                                  "id": 1697,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -67977,7 +70485,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "13631:27:0",
+                                  "src": "13897:27:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -67989,12 +70497,12 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 1297,
+                                          "id": 1702,
                                           "name": "contractAddress",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 1170,
-                                          "src": "13692:15:0",
+                                          "referencedDeclaration": 1576,
+                                          "src": "13958:15:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
@@ -68008,26 +70516,26 @@
                                             "typeString": "address"
                                           }
                                         ],
-                                        "id": 1296,
+                                        "id": 1701,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "13684:7:0",
+                                        "src": "13950:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes20_$",
                                           "typeString": "type(bytes20)"
                                         },
                                         "typeName": {
-                                          "id": 1295,
+                                          "id": 1700,
                                           "name": "bytes20",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "13684:7:0",
+                                          "src": "13950:7:6",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 1298,
+                                      "id": 1703,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -68035,7 +70543,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "13684:24:0",
+                                      "src": "13950:24:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes20",
@@ -68050,26 +70558,26 @@
                                         "typeString": "bytes20"
                                       }
                                     ],
-                                    "id": 1294,
+                                    "id": 1699,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13676:7:0",
+                                    "src": "13942:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 1293,
+                                      "id": 1698,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13676:7:0",
+                                      "src": "13942:7:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1299,
+                                  "id": 1704,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -68077,7 +70585,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "13676:33:0",
+                                  "src": "13942:33:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -68087,12 +70595,12 @@
                                 {
                                   "arguments": [
                                     {
-                                      "id": 1302,
+                                      "id": 1707,
                                       "name": "tokenId",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1172,
-                                      "src": "13735:7:0",
+                                      "referencedDeclaration": 1578,
+                                      "src": "14001:7:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -68106,26 +70614,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1301,
+                                    "id": 1706,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13727:7:0",
+                                    "src": "13993:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 1300,
+                                      "id": 1705,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13727:7:0",
+                                      "src": "13993:7:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1303,
+                                  "id": 1708,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -68133,7 +70641,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "13727:16:0",
+                                  "src": "13993:16:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -68145,12 +70653,12 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 1308,
+                                          "id": 1713,
                                           "name": "dest",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 1174,
-                                          "src": "13777:4:0",
+                                          "referencedDeclaration": 1580,
+                                          "src": "14043:4:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
@@ -68164,26 +70672,26 @@
                                             "typeString": "address"
                                           }
                                         ],
-                                        "id": 1307,
+                                        "id": 1712,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "13769:7:0",
+                                        "src": "14035:7:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes20_$",
                                           "typeString": "type(bytes20)"
                                         },
                                         "typeName": {
-                                          "id": 1306,
+                                          "id": 1711,
                                           "name": "bytes20",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "13769:7:0",
+                                          "src": "14035:7:6",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 1309,
+                                      "id": 1714,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -68191,7 +70699,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "13769:13:0",
+                                      "src": "14035:13:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes20",
@@ -68206,26 +70714,26 @@
                                         "typeString": "bytes20"
                                       }
                                     ],
-                                    "id": 1305,
+                                    "id": 1710,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13761:7:0",
+                                    "src": "14027:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 1304,
+                                      "id": 1709,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13761:7:0",
+                                      "src": "14027:7:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1310,
+                                  "id": 1715,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -68233,7 +70741,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "13761:22:0",
+                                  "src": "14027:22:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -68243,12 +70751,12 @@
                                 {
                                   "arguments": [
                                     {
-                                      "id": 1313,
+                                      "id": 1718,
                                       "name": "amount",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1176,
-                                      "src": "13809:6:0",
+                                      "referencedDeclaration": 1582,
+                                      "src": "14075:6:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -68262,26 +70770,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1312,
+                                    "id": 1717,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13801:7:0",
+                                    "src": "14067:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 1311,
+                                      "id": 1716,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13801:7:0",
+                                      "src": "14067:7:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1314,
+                                  "id": 1719,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -68289,7 +70797,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "13801:15:0",
+                                  "src": "14067:15:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -68297,12 +70805,12 @@
                                   }
                                 },
                                 {
-                                  "id": 1315,
+                                  "id": 1720,
                                   "name": "data",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1178,
-                                  "src": "13834:4:0",
+                                  "referencedDeclaration": 1584,
+                                  "src": "14100:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes_calldata_ptr",
                                     "typeString": "bytes calldata"
@@ -68341,39 +70849,39 @@
                                   }
                                 ],
                                 "expression": {
-                                  "id": 1277,
+                                  "id": 1682,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "13552:5:0",
+                                  "src": "13818:5:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                     "typeString": "type(bytes storage pointer)"
                                   },
                                   "typeName": {
-                                    "id": 1276,
+                                    "id": 1681,
                                     "name": "bytes",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "13552:5:0",
+                                    "src": "13818:5:6",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 1278,
+                                "id": 1683,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "memberName": "concat",
                                 "nodeType": "MemberAccess",
-                                "src": "13552:12:0",
+                                "src": "13818:12:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                   "typeString": "function () pure returns (bytes memory)"
                                 }
                               },
-                              "id": 1316,
+                              "id": 1721,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -68381,7 +70889,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "13552:300:0",
+                              "src": "13818:300:6",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_memory_ptr",
@@ -68389,22 +70897,22 @@
                               }
                             },
                             "nodeType": "VariableDeclarationStatement",
-                            "src": "13530:322:0"
+                            "src": "13796:322:6"
                           },
                           {
                             "expression": {
-                              "id": 1326,
+                              "id": 1731,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
                               "lValueRequested": false,
                               "leftHandSide": {
-                                "id": 1318,
+                                "id": 1723,
                                 "name": "paramsHash",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 1204,
-                                "src": "13866:10:0",
+                                "referencedDeclaration": 1610,
+                                "src": "14132:10:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -68417,12 +70925,12 @@
                                   {
                                     "arguments": [
                                       {
-                                        "id": 1323,
+                                        "id": 1728,
                                         "name": "packed",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 1275,
-                                        "src": "13902:6:0",
+                                        "referencedDeclaration": 1680,
+                                        "src": "14168:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes_memory_ptr",
                                           "typeString": "bytes memory"
@@ -68437,39 +70945,39 @@
                                         }
                                       ],
                                       "expression": {
-                                        "id": 1321,
+                                        "id": 1726,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "13889:5:0",
+                                        "src": "14155:5:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                           "typeString": "type(bytes storage pointer)"
                                         },
                                         "typeName": {
-                                          "id": 1320,
+                                          "id": 1725,
                                           "name": "bytes",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "13889:5:0",
+                                          "src": "14155:5:6",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 1322,
+                                      "id": 1727,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "memberName": "concat",
                                       "nodeType": "MemberAccess",
-                                      "src": "13889:12:0",
+                                      "src": "14155:12:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                         "typeString": "function () pure returns (bytes memory)"
                                       }
                                     },
-                                    "id": 1324,
+                                    "id": 1729,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -68477,7 +70985,7 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "13889:20:0",
+                                    "src": "14155:20:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_memory_ptr",
@@ -68492,18 +71000,18 @@
                                       "typeString": "bytes memory"
                                     }
                                   ],
-                                  "id": 1319,
+                                  "id": 1724,
                                   "name": "keccak256",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 4294967288,
-                                  "src": "13879:9:0",
+                                  "src": "14145:9:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                     "typeString": "function (bytes memory) pure returns (bytes32)"
                                   }
                                 },
-                                "id": 1325,
+                                "id": 1730,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -68511,47 +71019,47 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "13879:31:0",
+                                "src": "14145:31:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
                                 }
                               },
-                              "src": "13866:44:0",
+                              "src": "14132:44:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
                               }
                             },
-                            "id": 1327,
+                            "id": 1732,
                             "nodeType": "ExpressionStatement",
-                            "src": "13866:44:0"
+                            "src": "14132:44:6"
                           }
                         ]
                       },
-                      "id": 1329,
+                      "id": 1734,
                       "nodeType": "IfStatement",
-                      "src": "13359:562:0",
+                      "src": "13625:562:6",
                       "trueBody": {
-                        "id": 1273,
+                        "id": 1678,
                         "nodeType": "Block",
-                        "src": "13416:94:0",
+                        "src": "13682:94:6",
                         "statements": [
                           {
                             "expression": {
-                              "id": 1271,
+                              "id": 1676,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
                               "lValueRequested": false,
                               "leftHandSide": {
-                                "id": 1254,
+                                "id": 1659,
                                 "name": "paramsHash",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 1204,
-                                "src": "13430:10:0",
+                                "referencedDeclaration": 1610,
+                                "src": "13696:10:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -68570,12 +71078,12 @@
                                               {
                                                 "arguments": [
                                                   {
-                                                    "id": 1265,
+                                                    "id": 1670,
                                                     "name": "dest",
                                                     "nodeType": "Identifier",
                                                     "overloadedDeclarations": [],
-                                                    "referencedDeclaration": 1174,
-                                                    "src": "13490:4:0",
+                                                    "referencedDeclaration": 1580,
+                                                    "src": "13756:4:6",
                                                     "typeDescriptions": {
                                                       "typeIdentifier": "t_address",
                                                       "typeString": "address"
@@ -68589,26 +71097,26 @@
                                                       "typeString": "address"
                                                     }
                                                   ],
-                                                  "id": 1264,
+                                                  "id": 1669,
                                                   "isConstant": false,
                                                   "isLValue": false,
                                                   "isPure": true,
                                                   "lValueRequested": false,
                                                   "nodeType": "ElementaryTypeNameExpression",
-                                                  "src": "13482:7:0",
+                                                  "src": "13748:7:6",
                                                   "typeDescriptions": {
                                                     "typeIdentifier": "t_type$_t_address_$",
                                                     "typeString": "type(address)"
                                                   },
                                                   "typeName": {
-                                                    "id": 1263,
+                                                    "id": 1668,
                                                     "name": "address",
                                                     "nodeType": "ElementaryTypeName",
-                                                    "src": "13482:7:0",
+                                                    "src": "13748:7:6",
                                                     "typeDescriptions": {}
                                                   }
                                                 },
-                                                "id": 1266,
+                                                "id": 1671,
                                                 "isConstant": false,
                                                 "isLValue": false,
                                                 "isPure": false,
@@ -68616,7 +71124,7 @@
                                                 "lValueRequested": false,
                                                 "names": [],
                                                 "nodeType": "FunctionCall",
-                                                "src": "13482:13:0",
+                                                "src": "13748:13:6",
                                                 "tryCall": false,
                                                 "typeDescriptions": {
                                                   "typeIdentifier": "t_address",
@@ -68631,26 +71139,26 @@
                                                   "typeString": "address"
                                                 }
                                               ],
-                                              "id": 1262,
+                                              "id": 1667,
                                               "isConstant": false,
                                               "isLValue": false,
                                               "isPure": true,
                                               "lValueRequested": false,
                                               "nodeType": "ElementaryTypeNameExpression",
-                                              "src": "13474:7:0",
+                                              "src": "13740:7:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_type$_t_bytes20_$",
                                                 "typeString": "type(bytes20)"
                                               },
                                               "typeName": {
-                                                "id": 1261,
+                                                "id": 1666,
                                                 "name": "bytes20",
                                                 "nodeType": "ElementaryTypeName",
-                                                "src": "13474:7:0",
+                                                "src": "13740:7:6",
                                                 "typeDescriptions": {}
                                               }
                                             },
-                                            "id": 1267,
+                                            "id": 1672,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": false,
@@ -68658,7 +71166,7 @@
                                             "lValueRequested": false,
                                             "names": [],
                                             "nodeType": "FunctionCall",
-                                            "src": "13474:22:0",
+                                            "src": "13740:22:6",
                                             "tryCall": false,
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_bytes20",
@@ -68673,26 +71181,26 @@
                                               "typeString": "bytes20"
                                             }
                                           ],
-                                          "id": 1260,
+                                          "id": 1665,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "lValueRequested": false,
                                           "nodeType": "ElementaryTypeNameExpression",
-                                          "src": "13466:7:0",
+                                          "src": "13732:7:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_type$_t_bytes32_$",
                                             "typeString": "type(bytes32)"
                                           },
                                           "typeName": {
-                                            "id": 1259,
+                                            "id": 1664,
                                             "name": "bytes32",
                                             "nodeType": "ElementaryTypeName",
-                                            "src": "13466:7:0",
+                                            "src": "13732:7:6",
                                             "typeDescriptions": {}
                                           }
                                         },
-                                        "id": 1268,
+                                        "id": 1673,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -68700,7 +71208,7 @@
                                         "lValueRequested": false,
                                         "names": [],
                                         "nodeType": "FunctionCall",
-                                        "src": "13466:31:0",
+                                        "src": "13732:31:6",
                                         "tryCall": false,
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes32",
@@ -68716,39 +71224,39 @@
                                         }
                                       ],
                                       "expression": {
-                                        "id": 1257,
+                                        "id": 1662,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "13453:5:0",
+                                        "src": "13719:5:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                           "typeString": "type(bytes storage pointer)"
                                         },
                                         "typeName": {
-                                          "id": 1256,
+                                          "id": 1661,
                                           "name": "bytes",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "13453:5:0",
+                                          "src": "13719:5:6",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 1258,
+                                      "id": 1663,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "memberName": "concat",
                                       "nodeType": "MemberAccess",
-                                      "src": "13453:12:0",
+                                      "src": "13719:12:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                         "typeString": "function () pure returns (bytes memory)"
                                       }
                                     },
-                                    "id": 1269,
+                                    "id": 1674,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -68756,7 +71264,7 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "13453:45:0",
+                                    "src": "13719:45:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_memory_ptr",
@@ -68771,18 +71279,18 @@
                                       "typeString": "bytes memory"
                                     }
                                   ],
-                                  "id": 1255,
+                                  "id": 1660,
                                   "name": "keccak256",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 4294967288,
-                                  "src": "13443:9:0",
+                                  "src": "13709:9:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                     "typeString": "function (bytes memory) pure returns (bytes32)"
                                   }
                                 },
-                                "id": 1270,
+                                "id": 1675,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -68790,48 +71298,48 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "13443:56:0",
+                                "src": "13709:56:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
                                 }
                               },
-                              "src": "13430:69:0",
+                              "src": "13696:69:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
                               }
                             },
-                            "id": 1272,
+                            "id": 1677,
                             "nodeType": "ExpressionStatement",
-                            "src": "13430:69:0"
+                            "src": "13696:69:6"
                           }
                         ]
                       }
                     },
-                    "id": 1330,
+                    "id": 1735,
                     "nodeType": "IfStatement",
-                    "src": "13261:660:0",
+                    "src": "13522:665:6",
                     "trueBody": {
-                      "id": 1249,
+                      "id": 1654,
                       "nodeType": "Block",
-                      "src": "13305:48:0",
+                      "src": "13566:53:6",
                       "statements": [
                         {
                           "expression": {
-                            "id": 1247,
+                            "id": 1652,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "leftHandSide": {
-                              "id": 1242,
+                              "id": 1648,
                               "name": "paramsHash",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 1204,
-                              "src": "13319:10:0",
+                              "referencedDeclaration": 1610,
+                              "src": "13580:10:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -68842,98 +71350,86 @@
                             "rightHandSide": {
                               "arguments": [
                                 {
-                                  "hexValue": "30",
-                                  "id": 1245,
-                                  "isConstant": false,
-                                  "isLValue": false,
-                                  "isPure": true,
-                                  "kind": "number",
-                                  "lValueRequested": false,
-                                  "nodeType": "Literal",
-                                  "src": "13340:1:0",
+                                  "id": 1650,
+                                  "name": "data",
+                                  "nodeType": "Identifier",
+                                  "overloadedDeclarations": [],
+                                  "referencedDeclaration": 1584,
+                                  "src": "13603:4:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_rational_0_by_1",
-                                    "typeString": "int_const 0"
-                                  },
-                                  "value": "0"
+                                    "typeIdentifier": "t_bytes_calldata_ptr",
+                                    "typeString": "bytes calldata"
+                                  }
                                 }
                               ],
                               "expression": {
                                 "argumentTypes": [
                                   {
-                                    "typeIdentifier": "t_rational_0_by_1",
-                                    "typeString": "int_const 0"
+                                    "typeIdentifier": "t_bytes_calldata_ptr",
+                                    "typeString": "bytes calldata"
                                   }
                                 ],
-                                "id": 1244,
-                                "isConstant": false,
-                                "isLValue": false,
-                                "isPure": true,
-                                "lValueRequested": false,
-                                "nodeType": "ElementaryTypeNameExpression",
-                                "src": "13332:7:0",
+                                "id": 1649,
+                                "name": "keccak256",
+                                "nodeType": "Identifier",
+                                "overloadedDeclarations": [],
+                                "referencedDeclaration": 4294967288,
+                                "src": "13593:9:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_type$_t_bytes32_$",
-                                  "typeString": "type(bytes32)"
-                                },
-                                "typeName": {
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-                                  "name": "bytes32",
-                                  "nodeType": "ElementaryTypeName",
-                                  "src": "13332:7:0",
-                                  "typeDescriptions": {}
+                                  "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
+                                  "typeString": "function (bytes memory) pure returns (bytes32)"
                                 }
                               },
-                              "id": 1246,
+                              "id": 1651,
                               "isConstant": false,
                               "isLValue": false,
-                              "isPure": true,
-                              "kind": "typeConversion",
+                              "isPure": false,
+                              "kind": "functionCall",
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "13332:10:0",
+                              "src": "13593:15:6",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
                               }
                             },
-                            "src": "13319:23:0",
+                            "src": "13580:28:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
                             }
                           },
-                          "id": 1248,
+                          "id": 1653,
                           "nodeType": "ExpressionStatement",
-                          "src": "13319:23:0"
+                          "src": "13580:28:6"
                         }
                       ]
                     }
                   },
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+                  "id": 1736,
                   "nodeType": "IfStatement",
-                  "src": "13099:822:0",
+                  "src": "13360:827:6",
                   "trueBody": {
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+                    "id": 1643,
                     "nodeType": "Block",
-                    "src": "13144:111:0",
+                    "src": "13405:111:6",
                     "statements": [
                       {
                         "expression": {
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+                          "id": 1641,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
-                            "id": 1214,
+                            "id": 1620,
                             "name": "paramsHash",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1204,
-                            "src": "13158:10:0",
+                            "referencedDeclaration": 1610,
+                            "src": "13419:10:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
@@ -68952,12 +71448,12 @@
                                           {
                                             "arguments": [
                                               {
-                                                "id": 1225,
+                                                "id": 1631,
                                                 "name": "dest",
                                                 "nodeType": "Identifier",
                                                 "overloadedDeclarations": [],
-                                                "referencedDeclaration": 1174,
-                                                "src": "13218:4:0",
+                                                "referencedDeclaration": 1580,
+                                                "src": "13479:4:6",
                                                 "typeDescriptions": {
                                                   "typeIdentifier": "t_address",
                                                   "typeString": "address"
@@ -68971,26 +71467,26 @@
                                                   "typeString": "address"
                                                 }
                                               ],
-                                              "id": 1224,
+                                              "id": 1630,
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                                               "isPure": true,
                                               "lValueRequested": false,
                                               "nodeType": "ElementaryTypeNameExpression",
-                                              "src": "13210:7:0",
+                                              "src": "13471:7:6",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_type$_t_address_$",
                                                 "typeString": "type(address)"
                                               },
                                               "typeName": {
-                                                "id": 1223,
+                                                "id": 1629,
                                                 "name": "address",
                                                 "nodeType": "ElementaryTypeName",
-                                                "src": "13210:7:0",
+                                                "src": "13471:7:6",
                                                 "typeDescriptions": {}
                                               }
                                             },
-                                            "id": 1226,
+                                            "id": 1632,
                                             "isConstant": false,
                                             "isLValue": false,
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@@ -68998,7 +71494,7 @@
                                             "lValueRequested": false,
                                             "names": [],
                                             "nodeType": "FunctionCall",
-                                            "src": "13210:13:0",
+                                            "src": "13471:13:6",
                                             "tryCall": false,
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_address",
@@ -69013,26 +71509,26 @@
                                               "typeString": "address"
                                             }
                                           ],
-                                          "id": 1222,
+                                          "id": 1628,
                                           "isConstant": false,
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                                           "isPure": true,
                                           "lValueRequested": false,
                                           "nodeType": "ElementaryTypeNameExpression",
-                                          "src": "13202:7:0",
+                                          "src": "13463:7:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_type$_t_bytes20_$",
                                             "typeString": "type(bytes20)"
                                           },
                                           "typeName": {
-                                            "id": 1221,
+                                            "id": 1627,
                                             "name": "bytes20",
                                             "nodeType": "ElementaryTypeName",
-                                            "src": "13202:7:0",
+                                            "src": "13463:7:6",
                                             "typeDescriptions": {}
                                           }
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+                                        "id": 1633,
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@@ -69040,7 +71536,7 @@
                                         "lValueRequested": false,
                                         "names": [],
                                         "nodeType": "FunctionCall",
-                                        "src": "13202:22:0",
+                                        "src": "13463:22:6",
                                         "tryCall": false,
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes20",
@@ -69055,26 +71551,26 @@
                                           "typeString": "bytes20"
                                         }
                                       ],
-                                      "id": 1220,
+                                      "id": 1626,
                                       "isConstant": false,
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                                       "isPure": true,
                                       "lValueRequested": false,
                                       "nodeType": "ElementaryTypeNameExpression",
-                                      "src": "13194:7:0",
+                                      "src": "13455:7:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_type$_t_bytes32_$",
                                         "typeString": "type(bytes32)"
                                       },
                                       "typeName": {
-                                        "id": 1219,
+                                        "id": 1625,
                                         "name": "bytes32",
                                         "nodeType": "ElementaryTypeName",
-                                        "src": "13194:7:0",
+                                        "src": "13455:7:6",
                                         "typeDescriptions": {}
                                       }
                                     },
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+                                    "id": 1634,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -69082,7 +71578,7 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "13194:31:0",
+                                    "src": "13455:31:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes32",
@@ -69092,12 +71588,12 @@
                                   {
                                     "arguments": [
                                       {
-                                        "id": 1231,
+                                        "id": 1637,
                                         "name": "amount",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 1176,
-                                        "src": "13235:6:0",
+                                        "referencedDeclaration": 1582,
+                                        "src": "13496:6:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
@@ -69111,26 +71607,26 @@
                                           "typeString": "uint256"
                                         }
                                       ],
-                                      "id": 1230,
+                                      "id": 1636,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "lValueRequested": false,
                                       "nodeType": "ElementaryTypeNameExpression",
-                                      "src": "13227:7:0",
+                                      "src": "13488:7:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_type$_t_bytes32_$",
                                         "typeString": "type(bytes32)"
                                       },
                                       "typeName": {
-                                        "id": 1229,
+                                        "id": 1635,
                                         "name": "bytes32",
                                         "nodeType": "ElementaryTypeName",
-                                        "src": "13227:7:0",
+                                        "src": "13488:7:6",
                                         "typeDescriptions": {}
                                       }
                                     },
-                                    "id": 1232,
+                                    "id": 1638,
                                     "isConstant": false,
                                     "isLValue": false,
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@@ -69138,7 +71634,7 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "13227:15:0",
+                                    "src": "13488:15:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes32",
@@ -69158,39 +71654,39 @@
                                     }
                                   ],
                                   "expression": {
-                                    "id": 1217,
+                                    "id": 1623,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "13181:5:0",
+                                    "src": "13442:5:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                       "typeString": "type(bytes storage pointer)"
                                     },
                                     "typeName": {
-                                      "id": 1216,
+                                      "id": 1622,
                                       "name": "bytes",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "13181:5:0",
+                                      "src": "13442:5:6",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 1218,
+                                  "id": 1624,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "memberName": "concat",
                                   "nodeType": "MemberAccess",
-                                  "src": "13181:12:0",
+                                  "src": "13442:12:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                     "typeString": "function () pure returns (bytes memory)"
                                   }
                                 },
-                                "id": 1233,
+                                "id": 1639,
                                 "isConstant": false,
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@@ -69198,7 +71694,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "13181:62:0",
+                                "src": "13442:62:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes_memory_ptr",
@@ -69213,18 +71709,18 @@
                                   "typeString": "bytes memory"
                                 }
                               ],
-                              "id": 1215,
+                              "id": 1621,
                               "name": "keccak256",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 4294967288,
-                              "src": "13171:9:0",
+                              "src": "13432:9:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                 "typeString": "function (bytes memory) pure returns (bytes32)"
                               }
                             },
-                            "id": 1234,
+                            "id": 1640,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -69232,22 +71728,22 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "13171:73:0",
+                            "src": "13432:73:6",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
                             }
                           },
-                          "src": "13158:86:0",
+                          "src": "13419:86:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
                           }
                         },
-                        "id": 1236,
+                        "id": 1642,
                         "nodeType": "ExpressionStatement",
-                        "src": "13158:86:0"
+                        "src": "13419:86:6"
                       }
                     ]
                   }
@@ -69256,76 +71752,76 @@
                   "expression": {
                     "components": [
                       {
-                        "id": 1332,
+                        "id": 1737,
                         "name": "hash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1186,
-                        "src": "13938:4:0",
+                        "referencedDeclaration": 1592,
+                        "src": "14204:4:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1333,
+                        "id": 1738,
                         "name": "paramsHash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1204,
-                        "src": "13944:10:0",
+                        "referencedDeclaration": 1610,
+                        "src": "14210:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       }
                     ],
-                    "id": 1334,
+                    "id": 1739,
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                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "nodeType": "TupleExpression",
-                    "src": "13937:18:0",
+                    "src": "14203:18:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$_t_bytes32_$_t_bytes32_$",
                       "typeString": "tuple(bytes32,bytes32)"
                     }
                   },
-                  "functionReturnParameters": 1184,
-                  "id": 1335,
+                  "functionReturnParameters": 1590,
+                  "id": 1740,
                   "nodeType": "Return",
-                  "src": "13930:25:0"
+                  "src": "14196:25:6"
                 }
               ]
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             "documentation": {
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+              "id": 1562,
               "nodeType": "StructuredDocumentation",
-              "src": "12597:78:0",
+              "src": "12858:78:6",
               "text": "Provides commitHash, paramsHash, and verificationHash given the parameters"
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             "modifiers": [],
             "name": "_getRevealHash",
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@@ -69333,10 +71829,10 @@
                     "typeString": "bytes32"
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@@ -69373,13 +71869,13 @@
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@@ -69387,10 +71883,10 @@
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@@ -69434,33 +71930,33 @@
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@@ -69468,13 +71964,13 @@
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@@ -69482,10 +71978,10 @@
                     "typeString": "address"
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@@ -69496,13 +71992,13 @@
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@@ -69510,10 +72006,10 @@
                     "typeString": "uint256"
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@@ -69523,13 +72019,13 @@
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@@ -69537,10 +72033,10 @@
                     "typeString": "address"
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@@ -69551,13 +72047,13 @@
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@@ -69565,10 +72061,10 @@
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@@ -69578,13 +72074,13 @@
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@@ -69592,10 +72088,10 @@
                     "typeString": "bytes"
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@@ -69604,21 +72100,21 @@
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@@ -69626,10 +72122,10 @@
                     "typeString": "bytes32"
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@@ -69639,13 +72135,13 @@
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@@ -69653,10 +72149,10 @@
                     "typeString": "bytes32"
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@@ -69665,54 +72161,54 @@
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                           "typeString": "bytes32[] calldata"
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@@ -69734,18 +72230,18 @@
                           "typeString": "bytes32"
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@@ -69753,32 +72249,241 @@
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+                                "typeString": "enum ONEWallet.OperationType"
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+                                  "typeString": "enum ONEWallet.OperationType"
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+                                "typeString": "literal_string \"Last operation reserved for recover\""
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+                            }
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+                          "names": [],
+                          "nodeType": "FunctionCall",
+                          "src": "14610:86:6",
+                          "tryCall": false,
+                          "typeDescriptions": {
+                            "typeIdentifier": "t_tuple$__$",
+                            "typeString": "tuple()"
+                          }
+                        },
+                        "id": 1786,
+                        "nodeType": "ExpressionStatement",
+                        "src": "14610:86:6"
+                      }
+                    ]
+                  }
                 },
                 {
                   "assignments": [
-                    1370,
-                    1372
+                    1790,
+                    1792
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 1370,
+                      "id": 1790,
                       "mutability": "mutable",
                       "name": "commitHash",
-                      "nameLocation": "14301:10:0",
+                      "nameLocation": "14725:10:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1503,
-                      "src": "14293:18:0",
+                      "scope": 1923,
+                      "src": "14717:18:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -69786,10 +72491,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 1369,
+                        "id": 1789,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "14293:7:0",
+                        "src": "14717:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -69799,13 +72504,13 @@
                     },
                     {
                       "constant": false,
-                      "id": 1372,
+                      "id": 1792,
                       "mutability": "mutable",
                       "name": "paramsHash",
-                      "nameLocation": "14321:10:0",
+                      "nameLocation": "14745:10:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1503,
-                      "src": "14313:18:0",
+                      "scope": 1923,
+                      "src": "14737:18:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -69813,10 +72518,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 1371,
+                        "id": 1791,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "14313:7:0",
+                        "src": "14737:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -69825,33 +72530,33 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 1387,
+                  "id": 1807,
                   "initialValue": {
                     "arguments": [
                       {
                         "baseExpression": {
-                          "id": 1374,
+                          "id": 1794,
                           "name": "neighbors",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1340,
-                          "src": "14350:9:0",
+                          "referencedDeclaration": 1745,
+                          "src": "14774:9:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_array$_t_bytes32_$dyn_calldata_ptr",
                             "typeString": "bytes32[] calldata"
                           }
                         },
-                        "id": 1376,
+                        "id": 1796,
                         "indexExpression": {
                           "hexValue": "30",
-                          "id": 1375,
+                          "id": 1795,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "number",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "14360:1:0",
+                          "src": "14784:1:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_rational_0_by_1",
                             "typeString": "int_const 0"
@@ -69863,115 +72568,115 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "14350:12:0",
+                        "src": "14774:12:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1377,
+                        "id": 1797,
                         "name": "indexWithNonce",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1342,
-                        "src": "14364:14:0",
+                        "referencedDeclaration": 1747,
+                        "src": "14788:14:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
                         }
                       },
                       {
-                        "id": 1378,
+                        "id": 1798,
                         "name": "eotp",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1344,
-                        "src": "14380:4:0",
+                        "referencedDeclaration": 1749,
+                        "src": "14804:4:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1379,
+                        "id": 1799,
                         "name": "operationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1347,
-                        "src": "14398:13:0",
+                        "referencedDeclaration": 1752,
+                        "src": "14822:13:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         }
                       },
                       {
-                        "id": 1380,
+                        "id": 1800,
                         "name": "tokenType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1350,
-                        "src": "14413:9:0",
+                        "referencedDeclaration": 1755,
+                        "src": "14837:9:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
-                        "id": 1381,
+                        "id": 1801,
                         "name": "contractAddress",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1352,
-                        "src": "14424:15:0",
+                        "referencedDeclaration": 1757,
+                        "src": "14848:15:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 1382,
+                        "id": 1802,
                         "name": "tokenId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1354,
-                        "src": "14441:7:0",
+                        "referencedDeclaration": 1759,
+                        "src": "14865:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         }
                       },
                       {
-                        "id": 1383,
+                        "id": 1803,
                         "name": "dest",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1356,
-                        "src": "14450:4:0",
+                        "referencedDeclaration": 1761,
+                        "src": "14874:4:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address_payable",
                           "typeString": "address payable"
                         }
                       },
                       {
-                        "id": 1384,
+                        "id": 1804,
                         "name": "amount",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1358,
-                        "src": "14456:6:0",
+                        "referencedDeclaration": 1763,
+                        "src": "14880:6:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         }
                       },
                       {
-                        "id": 1385,
+                        "id": 1805,
                         "name": "data",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1360,
-                        "src": "14464:4:0",
+                        "referencedDeclaration": 1765,
+                        "src": "14888:4:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_calldata_ptr",
                           "typeString": "bytes calldata"
@@ -69993,11 +72698,11 @@
                           "typeString": "bytes32"
                         },
                         {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         },
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2176",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -70021,18 +72726,18 @@
                           "typeString": "bytes calldata"
                         }
                       ],
-                      "id": 1373,
+                      "id": 1793,
                       "name": "_getRevealHash",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1337,
-                      "src": "14335:14:0",
+                      "referencedDeclaration": 1742,
+                      "src": "14759:14:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_pure$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_enum$_OperationType_$103_$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_calldata_ptr_$returns$_t_bytes32_$_t_bytes32_$",
+                        "typeIdentifier": "t_function_internal_pure$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_enum$_OperationType_$493_$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_calldata_ptr_$returns$_t_bytes32_$_t_bytes32_$",
                         "typeString": "function (bytes32,uint32,bytes32,enum ONEWallet.OperationType,enum TokenTracker.TokenType,address,uint256,address,uint256,bytes calldata) pure returns (bytes32,bytes32)"
                       }
                     },
-                    "id": 1386,
+                    "id": 1806,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -70040,7 +72745,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "14335:134:0",
+                    "src": "14759:134:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$_t_bytes32_$_t_bytes32_$",
@@ -70048,22 +72753,22 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "14292:177:0"
+                  "src": "14716:177:6"
                 },
                 {
                   "assignments": [
-                    1389
+                    1809
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 1389,
+                      "id": 1809,
                       "mutability": "mutable",
                       "name": "commitIndex",
-                      "nameLocation": "14486:11:0",
+                      "nameLocation": "14910:11:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1503,
-                      "src": "14479:18:0",
+                      "scope": 1923,
+                      "src": "14903:18:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -70071,10 +72776,10 @@
                         "typeString": "uint32"
                       },
                       "typeName": {
-                        "id": 1388,
+                        "id": 1808,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "14479:6:0",
+                        "src": "14903:6:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -70083,52 +72788,52 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 1396,
+                  "id": 1816,
                   "initialValue": {
                     "arguments": [
                       {
-                        "id": 1391,
+                        "id": 1811,
                         "name": "commitHash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1370,
-                        "src": "14514:10:0",
+                        "referencedDeclaration": 1790,
+                        "src": "14938:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1392,
+                        "id": 1812,
                         "name": "indexWithNonce",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1342,
-                        "src": "14526:14:0",
+                        "referencedDeclaration": 1747,
+                        "src": "14950:14:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
                         }
                       },
                       {
-                        "id": 1393,
+                        "id": 1813,
                         "name": "paramsHash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1372,
-                        "src": "14542:10:0",
+                        "referencedDeclaration": 1792,
+                        "src": "14966:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1394,
+                        "id": 1814,
                         "name": "eotp",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1344,
-                        "src": "14554:4:0",
+                        "referencedDeclaration": 1749,
+                        "src": "14978:4:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -70154,18 +72859,18 @@
                           "typeString": "bytes32"
                         }
                       ],
-                      "id": 1390,
+                      "id": 1810,
                       "name": "_verifyReveal",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1928,
-                      "src": "14500:13:0",
+                      "referencedDeclaration": 2359,
+                      "src": "14924:13:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_internal_view$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_bytes32_$returns$_t_uint32_$",
                         "typeString": "function (bytes32,uint32,bytes32,bytes32) view returns (uint32)"
                       }
                     },
-                    "id": 1395,
+                    "id": 1815,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -70173,7 +72878,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "14500:59:0",
+                    "src": "14924:59:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
@@ -70181,30 +72886,30 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "14479:80:0"
+                  "src": "14903:80:6"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
-                        "id": 1398,
+                        "id": 1818,
                         "name": "commitHash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1370,
-                        "src": "14585:10:0",
+                        "referencedDeclaration": 1790,
+                        "src": "15009:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1399,
+                        "id": 1819,
                         "name": "commitIndex",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1389,
-                        "src": "14597:11:0",
+                        "referencedDeclaration": 1809,
+                        "src": "15021:11:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -70222,18 +72927,18 @@
                           "typeString": "uint32"
                         }
                       ],
-                      "id": 1397,
+                      "id": 1817,
                       "name": "_completeReveal",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2001,
-                      "src": "14569:15:0",
+                      "referencedDeclaration": 2432,
+                      "src": "14993:15:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_internal_nonpayable$_t_bytes32_$_t_uint32_$returns$__$",
                         "typeString": "function (bytes32,uint32)"
                       }
                     },
-                    "id": 1400,
+                    "id": 1820,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -70241,37 +72946,37 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "14569:40:0",
+                    "src": "14993:40:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 1401,
+                  "id": 1821,
                   "nodeType": "ExpressionStatement",
-                  "src": "14569:40:0"
+                  "src": "14993:40:6"
                 },
                 {
                   "condition": {
                     "commonType": {
-                      "typeIdentifier": "t_enum$_OperationType_$103",
+                      "typeIdentifier": "t_enum$_OperationType_$493",
                       "typeString": "enum ONEWallet.OperationType"
                     },
-                    "id": 1405,
+                    "id": 1825,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 1402,
+                      "id": 1822,
                       "name": "operationType",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1347,
-                      "src": "14674:13:0",
+                      "referencedDeclaration": 1752,
+                      "src": "15098:13:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_OperationType_$103",
+                        "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       }
                     },
@@ -70279,32 +72984,32 @@
                     "operator": "==",
                     "rightExpression": {
                       "expression": {
-                        "id": 1403,
+                        "id": 1823,
                         "name": "OperationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 103,
-                        "src": "14691:13:0",
+                        "referencedDeclaration": 493,
+                        "src": "15115:13:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                          "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                           "typeString": "type(enum ONEWallet.OperationType)"
                         }
                       },
-                      "id": 1404,
+                      "id": 1824,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "memberName": "TRACK",
                       "nodeType": "MemberAccess",
-                      "referencedDeclaration": 96,
-                      "src": "14691:19:0",
+                      "referencedDeclaration": 485,
+                      "src": "15115:19:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_OperationType_$103",
+                        "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       }
                     },
-                    "src": "14674:36:0",
+                    "src": "15098:36:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -70313,23 +73018,23 @@
                   "falseBody": {
                     "condition": {
                       "commonType": {
-                        "typeIdentifier": "t_enum$_OperationType_$103",
+                        "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       },
-                      "id": 1427,
+                      "id": 1847,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "leftExpression": {
-                        "id": 1424,
+                        "id": 1844,
                         "name": "operationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1347,
-                        "src": "14904:13:0",
+                        "referencedDeclaration": 1752,
+                        "src": "15328:13:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         }
                       },
@@ -70337,32 +73042,32 @@
                       "operator": "==",
                       "rightExpression": {
                         "expression": {
-                          "id": 1425,
+                          "id": 1845,
                           "name": "OperationType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 103,
-                          "src": "14921:13:0",
+                          "referencedDeclaration": 493,
+                          "src": "15345:13:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                            "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                             "typeString": "type(enum ONEWallet.OperationType)"
                           }
                         },
-                        "id": 1426,
+                        "id": 1846,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "memberName": "UNTRACK",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 97,
-                        "src": "14921:21:0",
+                        "referencedDeclaration": 486,
+                        "src": "15345:21:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         }
                       },
-                      "src": "14904:38:0",
+                      "src": "15328:38:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
@@ -70371,23 +73076,23 @@
                     "falseBody": {
                       "condition": {
                         "commonType": {
-                          "typeIdentifier": "t_enum$_OperationType_$103",
+                          "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         },
-                        "id": 1449,
+                        "id": 1869,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
-                          "id": 1446,
+                          "id": 1866,
                           "name": "operationType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1347,
-                          "src": "15140:13:0",
+                          "referencedDeclaration": 1752,
+                          "src": "15564:13:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_OperationType_$103",
+                            "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           }
                         },
@@ -70395,32 +73100,32 @@
                         "operator": "==",
                         "rightExpression": {
                           "expression": {
-                            "id": 1447,
+                            "id": 1867,
                             "name": "OperationType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 103,
-                            "src": "15157:13:0",
+                            "referencedDeclaration": 493,
+                            "src": "15581:13:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                              "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                               "typeString": "type(enum ONEWallet.OperationType)"
                             }
                           },
-                          "id": 1448,
+                          "id": 1868,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "lValueRequested": false,
                           "memberName": "TRANSFER_TOKEN",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 98,
-                          "src": "15157:28:0",
+                          "referencedDeclaration": 487,
+                          "src": "15581:28:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_OperationType_$103",
+                            "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           }
                         },
-                        "src": "15140:45:0",
+                        "src": "15564:45:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -70429,23 +73134,23 @@
                       "falseBody": {
                         "condition": {
                           "commonType": {
-                            "typeIdentifier": "t_enum$_OperationType_$103",
+                            "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           },
-                          "id": 1463,
+                          "id": 1883,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 1460,
+                            "id": 1880,
                             "name": "operationType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1347,
-                            "src": "15293:13:0",
+                            "referencedDeclaration": 1752,
+                            "src": "15717:13:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_OperationType_$103",
+                              "typeIdentifier": "t_enum$_OperationType_$493",
                               "typeString": "enum ONEWallet.OperationType"
                             }
                           },
@@ -70453,32 +73158,32 @@
                           "operator": "==",
                           "rightExpression": {
                             "expression": {
-                              "id": 1461,
+                              "id": 1881,
                               "name": "OperationType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 103,
-                              "src": "15310:13:0",
+                              "referencedDeclaration": 493,
+                              "src": "15734:13:6",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                                "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                 "typeString": "type(enum ONEWallet.OperationType)"
                               }
                             },
-                            "id": 1462,
+                            "id": 1882,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "memberName": "OVERRIDE_TRACK",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 99,
-                            "src": "15310:28:0",
+                            "referencedDeclaration": 488,
+                            "src": "15734:28:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_OperationType_$103",
+                              "typeIdentifier": "t_enum$_OperationType_$493",
                               "typeString": "enum ONEWallet.OperationType"
                             }
                           },
-                          "src": "15293:45:0",
+                          "src": "15717:45:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
@@ -70487,23 +73192,23 @@
                         "falseBody": {
                           "condition": {
                             "commonType": {
-                              "typeIdentifier": "t_enum$_OperationType_$103",
+                              "typeIdentifier": "t_enum$_OperationType_$493",
                               "typeString": "enum ONEWallet.OperationType"
                             },
-                            "id": 1472,
+                            "id": 1892,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "leftExpression": {
-                              "id": 1469,
+                              "id": 1889,
                               "name": "operationType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 1347,
-                              "src": "15404:13:0",
+                              "referencedDeclaration": 1752,
+                              "src": "15828:13:6",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_OperationType_$103",
+                                "typeIdentifier": "t_enum$_OperationType_$493",
                                 "typeString": "enum ONEWallet.OperationType"
                               }
                             },
@@ -70511,32 +73216,32 @@
                             "operator": "==",
                             "rightExpression": {
                               "expression": {
-                                "id": 1470,
+                                "id": 1890,
                                 "name": "OperationType",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 103,
-                                "src": "15421:13:0",
+                                "referencedDeclaration": 493,
+                                "src": "15845:13:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                                  "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                   "typeString": "type(enum ONEWallet.OperationType)"
                                 }
                               },
-                              "id": 1471,
+                              "id": 1891,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "memberName": "TRANSFER",
                               "nodeType": "MemberAccess",
-                              "referencedDeclaration": 100,
-                              "src": "15421:22:0",
+                              "referencedDeclaration": 489,
+                              "src": "15845:22:6",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_OperationType_$103",
+                                "typeIdentifier": "t_enum$_OperationType_$493",
                                 "typeString": "enum ONEWallet.OperationType"
                               }
                             },
-                            "src": "15404:39:0",
+                            "src": "15828:39:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bool",
                               "typeString": "bool"
@@ -70545,23 +73250,23 @@
                           "falseBody": {
                             "condition": {
                               "commonType": {
-                                "typeIdentifier": "t_enum$_OperationType_$103",
+                                "typeIdentifier": "t_enum$_OperationType_$493",
                                 "typeString": "enum ONEWallet.OperationType"
                               },
-                              "id": 1482,
+                              "id": 1902,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
                               "lValueRequested": false,
                               "leftExpression": {
-                                "id": 1479,
+                                "id": 1899,
                                 "name": "operationType",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 1347,
-                                "src": "15503:13:0",
+                                "referencedDeclaration": 1752,
+                                "src": "15927:13:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_enum$_OperationType_$103",
+                                  "typeIdentifier": "t_enum$_OperationType_$493",
                                   "typeString": "enum ONEWallet.OperationType"
                                 }
                               },
@@ -70569,32 +73274,32 @@
                               "operator": "==",
                               "rightExpression": {
                                 "expression": {
-                                  "id": 1480,
+                                  "id": 1900,
                                   "name": "OperationType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 103,
-                                  "src": "15520:13:0",
+                                  "referencedDeclaration": 493,
+                                  "src": "15944:13:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                                    "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                     "typeString": "type(enum ONEWallet.OperationType)"
                                   }
                                 },
-                                "id": 1481,
+                                "id": 1901,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
                                 "lValueRequested": false,
                                 "memberName": "RECOVER",
                                 "nodeType": "MemberAccess",
-                                "referencedDeclaration": 102,
-                                "src": "15520:21:0",
+                                "referencedDeclaration": 491,
+                                "src": "15944:21:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_enum$_OperationType_$103",
+                                  "typeIdentifier": "t_enum$_OperationType_$493",
                                   "typeString": "enum ONEWallet.OperationType"
                                 }
                               },
-                              "src": "15503:38:0",
+                              "src": "15927:38:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bool",
                                 "typeString": "bool"
@@ -70603,23 +73308,23 @@
                             "falseBody": {
                               "condition": {
                                 "commonType": {
-                                  "typeIdentifier": "t_enum$_OperationType_$103",
+                                  "typeIdentifier": "t_enum$_OperationType_$493",
                                   "typeString": "enum ONEWallet.OperationType"
                                 },
-                                "id": 1490,
+                                "id": 1910,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "leftExpression": {
-                                  "id": 1487,
+                                  "id": 1907,
                                   "name": "operationType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1347,
-                                  "src": "15588:13:0",
+                                  "referencedDeclaration": 1752,
+                                  "src": "16012:13:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_OperationType_$103",
+                                    "typeIdentifier": "t_enum$_OperationType_$493",
                                     "typeString": "enum ONEWallet.OperationType"
                                   }
                                 },
@@ -70627,55 +73332,55 @@
                                 "operator": "==",
                                 "rightExpression": {
                                   "expression": {
-                                    "id": 1488,
+                                    "id": 1908,
                                     "name": "OperationType",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 103,
-                                    "src": "15605:13:0",
+                                    "referencedDeclaration": 493,
+                                    "src": "16029:13:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_type$_t_enum$_OperationType_$103_$",
+                                      "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                       "typeString": "type(enum ONEWallet.OperationType)"
                                     }
                                   },
-                                  "id": 1489,
+                                  "id": 1909,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "memberName": "SET_RECOVERY_ADDRESS",
                                   "nodeType": "MemberAccess",
-                                  "referencedDeclaration": 101,
-                                  "src": "15605:34:0",
+                                  "referencedDeclaration": 490,
+                                  "src": "16029:34:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_OperationType_$103",
+                                    "typeIdentifier": "t_enum$_OperationType_$493",
                                     "typeString": "enum ONEWallet.OperationType"
                                   }
                                 },
-                                "src": "15588:51:0",
+                                "src": "16012:51:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bool",
                                   "typeString": "bool"
                                 }
                               },
-                              "id": 1496,
+                              "id": 1916,
                               "nodeType": "IfStatement",
-                              "src": "15584:107:0",
+                              "src": "16008:107:6",
                               "trueBody": {
-                                "id": 1495,
+                                "id": 1915,
                                 "nodeType": "Block",
-                                "src": "15641:50:0",
+                                "src": "16065:50:6",
                                 "statements": [
                                   {
                                     "expression": {
                                       "arguments": [
                                         {
-                                          "id": 1492,
+                                          "id": 1912,
                                           "name": "dest",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 1356,
-                                          "src": "15675:4:0",
+                                          "referencedDeclaration": 1761,
+                                          "src": "16099:4:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address_payable",
                                             "typeString": "address payable"
@@ -70689,18 +73394,18 @@
                                             "typeString": "address payable"
                                           }
                                         ],
-                                        "id": 1491,
+                                        "id": 1911,
                                         "name": "_setRecoveryAddress",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 959,
-                                        "src": "15655:19:0",
+                                        "referencedDeclaration": 1365,
+                                        "src": "16079:19:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_function_internal_nonpayable$_t_address_payable_$returns$__$",
                                           "typeString": "function (address payable)"
                                         }
                                       },
-                                      "id": 1493,
+                                      "id": 1913,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -70708,45 +73413,45 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "15655:25:0",
+                                      "src": "16079:25:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_tuple$__$",
                                         "typeString": "tuple()"
                                       }
                                     },
-                                    "id": 1494,
+                                    "id": 1914,
                                     "nodeType": "ExpressionStatement",
-                                    "src": "15655:25:0"
+                                    "src": "16079:25:6"
                                   }
                                 ]
                               }
                             },
-                            "id": 1497,
+                            "id": 1917,
                             "nodeType": "IfStatement",
-                            "src": "15499:192:0",
+                            "src": "15923:192:6",
                             "trueBody": {
-                              "id": 1486,
+                              "id": 1906,
                               "nodeType": "Block",
-                              "src": "15543:35:0",
+                              "src": "15967:35:6",
                               "statements": [
                                 {
                                   "expression": {
                                     "arguments": [],
                                     "expression": {
                                       "argumentTypes": [],
-                                      "id": 1483,
+                                      "id": 1903,
                                       "name": "_recover",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 939,
-                                      "src": "15557:8:0",
+                                      "referencedDeclaration": 1345,
+                                      "src": "15981:8:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_function_internal_nonpayable$__$returns$_t_bool_$",
                                         "typeString": "function () returns (bool)"
                                       }
                                     },
-                                    "id": 1484,
+                                    "id": 1904,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -70754,50 +73459,50 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "15557:10:0",
+                                    "src": "15981:10:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bool",
                                       "typeString": "bool"
                                     }
                                   },
-                                  "id": 1485,
+                                  "id": 1905,
                                   "nodeType": "ExpressionStatement",
-                                  "src": "15557:10:0"
+                                  "src": "15981:10:6"
                                 }
                               ]
                             }
                           },
-                          "id": 1498,
+                          "id": 1918,
                           "nodeType": "IfStatement",
-                          "src": "15400:291:0",
+                          "src": "15824:291:6",
                           "trueBody": {
-                            "id": 1478,
+                            "id": 1898,
                             "nodeType": "Block",
-                            "src": "15445:48:0",
+                            "src": "15869:48:6",
                             "statements": [
                               {
                                 "expression": {
                                   "arguments": [
                                     {
-                                      "id": 1474,
+                                      "id": 1894,
                                       "name": "dest",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1356,
-                                      "src": "15469:4:0",
+                                      "referencedDeclaration": 1761,
+                                      "src": "15893:4:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_address_payable",
                                         "typeString": "address payable"
                                       }
                                     },
                                     {
-                                      "id": 1475,
+                                      "id": 1895,
                                       "name": "amount",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1358,
-                                      "src": "15475:6:0",
+                                      "referencedDeclaration": 1763,
+                                      "src": "15899:6:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -70815,18 +73520,18 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1473,
+                                    "id": 1893,
                                     "name": "_transfer",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 908,
-                                    "src": "15459:9:0",
+                                    "referencedDeclaration": 1314,
+                                    "src": "15883:9:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_nonpayable$_t_address_payable_$_t_uint256_$returns$_t_bool_$",
                                       "typeString": "function (address payable,uint256) returns (bool)"
                                     }
                                   },
-                                  "id": 1476,
+                                  "id": 1896,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -70834,38 +73539,38 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "15459:23:0",
+                                  "src": "15883:23:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bool",
                                     "typeString": "bool"
                                   }
                                 },
-                                "id": 1477,
+                                "id": 1897,
                                 "nodeType": "ExpressionStatement",
-                                "src": "15459:23:0"
+                                "src": "15883:23:6"
                               }
                             ]
                           }
                         },
-                        "id": 1499,
+                        "id": 1919,
                         "nodeType": "IfStatement",
-                        "src": "15289:402:0",
+                        "src": "15713:402:6",
                         "trueBody": {
-                          "id": 1468,
+                          "id": 1888,
                           "nodeType": "Block",
-                          "src": "15340:54:0",
+                          "src": "15764:54:6",
                           "statements": [
                             {
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 1465,
+                                    "id": 1885,
                                     "name": "data",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1360,
-                                    "src": "15378:4:0",
+                                    "referencedDeclaration": 1765,
+                                    "src": "15802:4:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -70879,18 +73584,18 @@
                                       "typeString": "bytes calldata"
                                     }
                                   ],
-                                  "id": 1464,
+                                  "id": 1884,
                                   "name": "_overrideTrackWithBytes",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 3166,
-                                  "src": "15354:23:0",
+                                  "referencedDeclaration": 3597,
+                                  "src": "15778:23:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_calldata_ptr_$returns$__$",
                                     "typeString": "function (bytes calldata)"
                                   }
                                 },
-                                "id": 1466,
+                                "id": 1886,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -70898,98 +73603,98 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "15354:29:0",
+                                "src": "15778:29:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_tuple$__$",
                                   "typeString": "tuple()"
                                 }
                               },
-                              "id": 1467,
+                              "id": 1887,
                               "nodeType": "ExpressionStatement",
-                              "src": "15354:29:0"
+                              "src": "15778:29:6"
                             }
                           ]
                         }
                       },
-                      "id": 1500,
+                      "id": 1920,
                       "nodeType": "IfStatement",
-                      "src": "15136:555:0",
+                      "src": "15560:555:6",
                       "trueBody": {
-                        "id": 1459,
+                        "id": 1879,
                         "nodeType": "Block",
-                        "src": "15187:96:0",
+                        "src": "15611:96:6",
                         "statements": [
                           {
                             "expression": {
                               "arguments": [
                                 {
-                                  "id": 1451,
+                                  "id": 1871,
                                   "name": "tokenType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1350,
-                                  "src": "15216:9:0",
+                                  "referencedDeclaration": 1755,
+                                  "src": "15640:9:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_TokenType_$2176",
+                                    "typeIdentifier": "t_enum$_TokenType_$2607",
                                     "typeString": "enum TokenTracker.TokenType"
                                   }
                                 },
                                 {
-                                  "id": 1452,
+                                  "id": 1872,
                                   "name": "contractAddress",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1352,
-                                  "src": "15227:15:0",
+                                  "referencedDeclaration": 1757,
+                                  "src": "15651:15:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
                                   }
                                 },
                                 {
-                                  "id": 1453,
+                                  "id": 1873,
                                   "name": "tokenId",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1354,
-                                  "src": "15244:7:0",
+                                  "referencedDeclaration": 1759,
+                                  "src": "15668:7:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
                                 {
-                                  "id": 1454,
+                                  "id": 1874,
                                   "name": "dest",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1356,
-                                  "src": "15253:4:0",
+                                  "referencedDeclaration": 1761,
+                                  "src": "15677:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address_payable",
                                     "typeString": "address payable"
                                   }
                                 },
                                 {
-                                  "id": 1455,
+                                  "id": 1875,
                                   "name": "amount",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1358,
-                                  "src": "15259:6:0",
+                                  "referencedDeclaration": 1763,
+                                  "src": "15683:6:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
                                 {
-                                  "id": 1456,
+                                  "id": 1876,
                                   "name": "data",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1360,
-                                  "src": "15267:4:0",
+                                  "referencedDeclaration": 1765,
+                                  "src": "15691:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes_calldata_ptr",
                                     "typeString": "bytes calldata"
@@ -70999,7 +73704,7 @@
                               "expression": {
                                 "argumentTypes": [
                                   {
-                                    "typeIdentifier": "t_enum$_TokenType_$2176",
+                                    "typeIdentifier": "t_enum$_TokenType_$2607",
                                     "typeString": "enum TokenTracker.TokenType"
                                   },
                                   {
@@ -71023,18 +73728,18 @@
                                     "typeString": "bytes calldata"
                                   }
                                 ],
-                                "id": 1450,
+                                "id": 1870,
                                 "name": "_transferToken",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 1155,
-                                "src": "15201:14:0",
+                                "referencedDeclaration": 1561,
+                                "src": "15625:14:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
+                                  "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
                                   "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,bytes memory)"
                                 }
                               },
-                              "id": 1457,
+                              "id": 1877,
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@@ -71042,27 +73747,27 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "15201:71:0",
+                              "src": "15625:71:6",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_tuple$__$",
                                 "typeString": "tuple()"
                               }
                             },
-                            "id": 1458,
+                            "id": 1878,
                             "nodeType": "ExpressionStatement",
-                            "src": "15201:71:0"
+                            "src": "15625:71:6"
                           }
                         ]
                       }
                     },
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+                    "id": 1921,
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+                    "src": "15324:791:6",
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+                      "id": 1865,
                       "nodeType": "Block",
-                      "src": "14944:186:0",
+                      "src": "15368:186:6",
                       "statements": [
                         {
                           "condition": {
@@ -71070,32 +73775,32 @@
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             },
-                            "id": 1431,
+                            "id": 1851,
                             "isConstant": false,
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                             "isPure": false,
                             "lValueRequested": false,
                             "leftExpression": {
                               "expression": {
-                                "id": 1428,
+                                "id": 1848,
                                 "name": "data",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 1360,
-                                "src": "14962:4:0",
+                                "referencedDeclaration": 1765,
+                                "src": "15386:4:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes_calldata_ptr",
                                   "typeString": "bytes calldata"
                                 }
                               },
-                              "id": 1429,
+                              "id": 1849,
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                               "lValueRequested": false,
                               "memberName": "length",
                               "nodeType": "MemberAccess",
-                              "src": "14962:11:0",
+                              "src": "15386:11:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -71105,41 +73810,41 @@
                             "operator": ">",
                             "rightExpression": {
                               "hexValue": "30",
-                              "id": 1430,
+                              "id": 1850,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "kind": "number",
                               "lValueRequested": false,
                               "nodeType": "Literal",
-                              "src": "14976:1:0",
+                              "src": "15400:1:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_rational_0_by_1",
                                 "typeString": "int_const 0"
                               },
                               "value": "0"
                             },
-                            "src": "14962:15:0",
+                            "src": "15386:15:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bool",
                               "typeString": "bool"
                             }
                           },
                           "falseBody": {
-                            "id": 1443,
+                            "id": 1863,
                             "nodeType": "Block",
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+                            "src": "15492:52:6",
                             "statements": [
                               {
                                 "expression": {
                                   "arguments": [
                                     {
-                                      "id": 1440,
+                                      "id": 1860,
                                       "name": "data",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1360,
-                                      "src": "15100:4:0",
+                                      "referencedDeclaration": 1765,
+                                      "src": "15524:4:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes_calldata_ptr",
                                         "typeString": "bytes calldata"
@@ -71153,18 +73858,18 @@
                                         "typeString": "bytes calldata"
                                       }
                                     ],
-                                    "id": 1439,
+                                    "id": 1859,
                                     "name": "_multiUntrack",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3382,
-                                    "src": "15086:13:0",
+                                    "referencedDeclaration": 3813,
+                                    "src": "15510:13:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_calldata_ptr_$returns$__$",
                                       "typeString": "function (bytes calldata)"
                                     }
                                   },
-                                  "id": 1441,
+                                  "id": 1861,
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@@ -71172,61 +73877,61 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "15086:19:0",
+                                  "src": "15510:19:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_tuple$__$",
                                     "typeString": "tuple()"
                                   }
                                 },
-                                "id": 1442,
+                                "id": 1862,
                                 "nodeType": "ExpressionStatement",
-                                "src": "15086:19:0"
+                                "src": "15510:19:6"
                               }
                             ]
                           },
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+                          "id": 1864,
                           "nodeType": "IfStatement",
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+                          "src": "15382:162:6",
                           "trueBody": {
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+                            "id": 1858,
                             "nodeType": "Block",
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+                            "src": "15403:83:6",
                             "statements": [
                               {
                                 "expression": {
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                                     {
-                                      "id": 1433,
+                                      "id": 1853,
                                       "name": "tokenType",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1350,
-                                      "src": "15011:9:0",
+                                      "referencedDeclaration": 1755,
+                                      "src": "15435:9:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_enum$_TokenType_$2176",
+                                        "typeIdentifier": "t_enum$_TokenType_$2607",
                                         "typeString": "enum TokenTracker.TokenType"
                                       }
                                     },
                                     {
-                                      "id": 1434,
+                                      "id": 1854,
                                       "name": "contractAddress",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1352,
-                                      "src": "15022:15:0",
+                                      "referencedDeclaration": 1757,
+                                      "src": "15446:15:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_address",
                                         "typeString": "address"
                                       }
                                     },
                                     {
-                                      "id": 1435,
+                                      "id": 1855,
                                       "name": "tokenId",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 1354,
-                                      "src": "15039:7:0",
+                                      "referencedDeclaration": 1759,
+                                      "src": "15463:7:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -71236,7 +73941,7 @@
                                   "expression": {
                                     "argumentTypes": [
                                       {
-                                        "typeIdentifier": "t_enum$_TokenType_$2176",
+                                        "typeIdentifier": "t_enum$_TokenType_$2607",
                                         "typeString": "enum TokenTracker.TokenType"
                                       },
                                       {
@@ -71248,18 +73953,18 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1432,
+                                    "id": 1852,
                                     "name": "_untrackToken",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2876,
-                                    "src": "14997:13:0",
+                                    "referencedDeclaration": 3307,
+                                    "src": "15421:13:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$returns$__$",
+                                      "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                                       "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                                     }
                                   },
-                                  "id": 1436,
+                                  "id": 1856,
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@@ -71267,16 +73972,16 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "14997:50:0",
+                                  "src": "15421:50:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_tuple$__$",
                                     "typeString": "tuple()"
                                   }
                                 },
-                                "id": 1437,
+                                "id": 1857,
                                 "nodeType": "ExpressionStatement",
-                                "src": "14997:50:0"
+                                "src": "15421:50:6"
                               }
                             ]
                           }
@@ -71284,13 +73989,13 @@
                       ]
                     }
                   },
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                     "statements": [
                       {
                         "condition": {
@@ -71298,32 +74003,32 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
-                          "id": 1409,
+                          "id": 1829,
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                           "lValueRequested": false,
                           "leftExpression": {
                             "expression": {
-                              "id": 1406,
+                              "id": 1826,
                               "name": "data",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 1360,
-                              "src": "14730:4:0",
+                              "referencedDeclaration": 1765,
+                              "src": "15154:4:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_calldata_ptr",
                                 "typeString": "bytes calldata"
                               }
                             },
-                            "id": 1407,
+                            "id": 1827,
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                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "14730:11:0",
+                            "src": "15154:11:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -71333,65 +74038,65 @@
                           "operator": ">",
                           "rightExpression": {
                             "hexValue": "30",
-                            "id": 1408,
+                            "id": 1828,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "14744:1:0",
+                            "src": "15168:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_0_by_1",
                               "typeString": "int_const 0"
                             },
                             "value": "0"
                           },
-                          "src": "14730:15:0",
+                          "src": "15154:15:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
                         "falseBody": {
-                          "id": 1421,
+                          "id": 1841,
                           "nodeType": "Block",
-                          "src": "14803:81:0",
+                          "src": "15227:81:6",
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                             {
                               "expression": {
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                                   {
-                                    "id": 1416,
+                                    "id": 1836,
                                     "name": "tokenType",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1350,
-                                    "src": "14833:9:0",
+                                    "referencedDeclaration": 1755,
+                                    "src": "15257:9:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_enum$_TokenType_$2176",
+                                      "typeIdentifier": "t_enum$_TokenType_$2607",
                                       "typeString": "enum TokenTracker.TokenType"
                                     }
                                   },
                                   {
-                                    "id": 1417,
+                                    "id": 1837,
                                     "name": "contractAddress",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1352,
-                                    "src": "14844:15:0",
+                                    "referencedDeclaration": 1757,
+                                    "src": "15268:15:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_address",
                                       "typeString": "address"
                                     }
                                   },
                                   {
-                                    "id": 1418,
+                                    "id": 1838,
                                     "name": "tokenId",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1354,
-                                    "src": "14861:7:0",
+                                    "referencedDeclaration": 1759,
+                                    "src": "15285:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint256",
                                       "typeString": "uint256"
@@ -71401,7 +74106,7 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_enum$_TokenType_$2176",
+                                      "typeIdentifier": "t_enum$_TokenType_$2607",
                                       "typeString": "enum TokenTracker.TokenType"
                                     },
                                     {
@@ -71413,18 +74118,18 @@
                                       "typeString": "uint256"
                                     }
                                   ],
-                                  "id": 1415,
+                                  "id": 1835,
                                   "name": "_trackToken",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2658,
-                                  "src": "14821:11:0",
+                                  "referencedDeclaration": 3089,
+                                  "src": "15245:11:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2176_$_t_address_$_t_uint256_$returns$__$",
+                                    "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                                     "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                                   }
                                 },
-                                "id": 1419,
+                                "id": 1839,
                                 "isConstant": false,
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@@ -71432,37 +74137,37 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "14821:48:0",
+                                "src": "15245:48:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_tuple$__$",
                                   "typeString": "tuple()"
                                 }
                               },
-                              "id": 1420,
+                              "id": 1840,
                               "nodeType": "ExpressionStatement",
-                              "src": "14821:48:0"
+                              "src": "15245:48:6"
                             }
                           ]
                         },
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+                        "id": 1842,
                         "nodeType": "IfStatement",
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+                        "src": "15150:158:6",
                         "trueBody": {
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+                          "id": 1834,
                           "nodeType": "Block",
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+                          "src": "15171:50:6",
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                             {
                               "expression": {
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                                   {
-                                    "id": 1411,
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                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1360,
-                                    "src": "14777:4:0",
+                                    "referencedDeclaration": 1765,
+                                    "src": "15201:4:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -71476,18 +74181,18 @@
                                       "typeString": "bytes calldata"
                                     }
                                   ],
-                                  "id": 1410,
+                                  "id": 1830,
                                   "name": "_multiTrack",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 3274,
-                                  "src": "14765:11:0",
+                                  "referencedDeclaration": 3705,
+                                  "src": "15189:11:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_calldata_ptr_$returns$__$",
                                     "typeString": "function (bytes calldata)"
                                   }
                                 },
-                                "id": 1412,
+                                "id": 1832,
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@@ -71495,16 +74200,16 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "14765:17:0",
+                                "src": "15189:17:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_tuple$__$",
                                   "typeString": "tuple()"
                                 }
                               },
-                              "id": 1413,
+                              "id": 1833,
                               "nodeType": "ExpressionStatement",
-                              "src": "14765:17:0"
+                              "src": "15189:17:6"
                             }
                           ]
                         }
@@ -71515,26 +74220,26 @@
               ]
             },
             "functionSelector": "c34a6dad",
-            "id": 1504,
+            "id": 1924,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "reveal",
-            "nameLocation": "13978:6:0",
+            "nameLocation": "14244:6:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 1361,
+              "id": 1766,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
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+                  "id": 1745,
                   "mutability": "mutable",
                   "name": "neighbors",
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-                  "src": "13985:28:0",
+                  "scope": 1924,
+                  "src": "14251:28:6",
                   "stateVariable": false,
                   "storageLocation": "calldata",
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@@ -71543,18 +74248,18 @@
                   },
                   "typeName": {
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+                      "id": 1743,
                       "name": "bytes32",
                       "nodeType": "ElementaryTypeName",
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+                      "src": "14251:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bytes32",
                         "typeString": "bytes32"
                       }
                     },
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-                    "src": "13985:9:0",
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                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_bytes32_$dyn_storage_ptr",
                       "typeString": "bytes32[]"
@@ -71564,13 +74269,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1342,
+                  "id": 1747,
                   "mutability": "mutable",
                   "name": "indexWithNonce",
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+                  "nameLocation": "14288:14:6",
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-                  "src": "14015:21:0",
+                  "scope": 1924,
+                  "src": "14281:21:6",
                   "stateVariable": false,
                   "storageLocation": "default",
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@@ -71578,10 +74283,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 1341,
+                    "id": 1746,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "14015:6:0",
+                    "src": "14281:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -71591,13 +74296,13 @@
                 },
                 {
                   "constant": false,
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+                  "id": 1749,
                   "mutability": "mutable",
                   "name": "eotp",
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-                  "src": "14038:12:0",
+                  "scope": 1924,
+                  "src": "14304:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
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@@ -71605,10 +74310,10 @@
                     "typeString": "bytes32"
                   },
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-                    "id": 1343,
+                    "id": 1748,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "14038:7:0",
+                    "src": "14304:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -71618,33 +74323,33 @@
                 },
                 {
                   "constant": false,
-                  "id": 1347,
+                  "id": 1752,
                   "mutability": "mutable",
                   "name": "operationType",
-                  "nameLocation": "14074:13:0",
+                  "nameLocation": "14340:13:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14060:27:0",
+                  "scope": 1924,
+                  "src": "14326:27:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_OperationType_$103",
+                    "typeIdentifier": "t_enum$_OperationType_$493",
                     "typeString": "enum ONEWallet.OperationType"
                   },
                   "typeName": {
-                    "id": 1346,
+                    "id": 1751,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 1345,
+                      "id": 1750,
                       "name": "OperationType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 103,
-                      "src": "14060:13:0"
+                      "referencedDeclaration": 493,
+                      "src": "14326:13:6"
                     },
-                    "referencedDeclaration": 103,
-                    "src": "14060:13:0",
+                    "referencedDeclaration": 493,
+                    "src": "14326:13:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_OperationType_$103",
+                      "typeIdentifier": "t_enum$_OperationType_$493",
                       "typeString": "enum ONEWallet.OperationType"
                     }
                   },
@@ -71652,33 +74357,33 @@
                 },
                 {
                   "constant": false,
-                  "id": 1350,
+                  "id": 1755,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "14099:9:0",
+                  "nameLocation": "14365:9:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14089:19:0",
+                  "scope": 1924,
+                  "src": "14355:19:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2176",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 1349,
+                    "id": 1754,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 1348,
+                      "id": 1753,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2176,
-                      "src": "14089:9:0"
+                      "referencedDeclaration": 2607,
+                      "src": "14355:9:6"
                     },
-                    "referencedDeclaration": 2176,
-                    "src": "14089:9:0",
+                    "referencedDeclaration": 2607,
+                    "src": "14355:9:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2176",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -71686,13 +74391,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1352,
+                  "id": 1757,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "14118:15:0",
+                  "nameLocation": "14384:15:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14110:23:0",
+                  "scope": 1924,
+                  "src": "14376:23:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -71700,10 +74405,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 1351,
+                    "id": 1756,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "14110:7:0",
+                    "src": "14376:7:6",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -71714,13 +74419,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1354,
+                  "id": 1759,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "14143:7:0",
+                  "nameLocation": "14409:7:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14135:15:0",
+                  "scope": 1924,
+                  "src": "14401:15:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -71728,10 +74433,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 1353,
+                    "id": 1758,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "14135:7:0",
+                    "src": "14401:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -71741,13 +74446,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1356,
+                  "id": 1761,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "14168:4:0",
+                  "nameLocation": "14434:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14152:20:0",
+                  "scope": 1924,
+                  "src": "14418:20:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -71755,10 +74460,10 @@
                     "typeString": "address payable"
                   },
                   "typeName": {
-                    "id": 1355,
+                    "id": 1760,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "14152:15:0",
+                    "src": "14418:15:6",
                     "stateMutability": "payable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address_payable",
@@ -71769,13 +74474,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1358,
+                  "id": 1763,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "14182:6:0",
+                  "nameLocation": "14448:6:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14174:14:0",
+                  "scope": 1924,
+                  "src": "14440:14:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -71783,10 +74488,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 1357,
+                    "id": 1762,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "14174:7:0",
+                    "src": "14440:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -71796,13 +74501,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1360,
+                  "id": 1765,
                   "mutability": "mutable",
                   "name": "data",
-                  "nameLocation": "14205:4:0",
+                  "nameLocation": "14471:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1504,
-                  "src": "14190:19:0",
+                  "scope": 1924,
+                  "src": "14456:19:6",
                   "stateVariable": false,
                   "storageLocation": "calldata",
                   "typeDescriptions": {
@@ -71810,10 +74515,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 1359,
+                    "id": 1764,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "14190:5:0",
+                    "src": "14456:5:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -71822,25 +74527,25 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "13984:226:0"
+              "src": "14250:226:6"
             },
             "returnParameters": {
-              "id": 1362,
+              "id": 1767,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "14224:0:0"
+              "src": "14490:0:6"
             },
-            "scope": 2161,
-            "src": "13969:1728:0",
+            "scope": 2592,
+            "src": "14235:1886:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "external"
           },
           {
             "body": {
-              "id": 1596,
+              "id": 2027,
               "nodeType": "Block",
-              "src": "15926:488:0",
+              "src": "16350:604:6",
               "statements": [
                 {
                   "expression": {
@@ -71850,32 +74555,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 1521,
+                        "id": 1941,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 1516,
+                            "id": 1936,
                             "name": "neighbors",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1508,
-                            "src": "15944:9:0",
+                            "referencedDeclaration": 1928,
+                            "src": "16368:9:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_bytes32_$dyn_calldata_ptr",
                               "typeString": "bytes32[] calldata"
                             }
                           },
-                          "id": 1517,
+                          "id": 1937,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "15944:16:0",
+                          "src": "16368:16:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -71888,18 +74593,18 @@
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
                           },
-                          "id": 1520,
+                          "id": 1940,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 1518,
+                            "id": 1938,
                             "name": "height",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 52,
-                            "src": "15964:6:0",
+                            "referencedDeclaration": 439,
+                            "src": "16388:6:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint8",
                               "typeString": "uint8"
@@ -71909,27 +74614,27 @@
                           "operator": "-",
                           "rightExpression": {
                             "hexValue": "31",
-                            "id": 1519,
+                            "id": 1939,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "15973:1:0",
+                            "src": "16397:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_1_by_1",
                               "typeString": "int_const 1"
                             },
                             "value": "1"
                           },
-                          "src": "15964:10:0",
+                          "src": "16388:10:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
                           }
                         },
-                        "src": "15944:30:0",
+                        "src": "16368:30:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -71937,14 +74642,14 @@
                       },
                       {
                         "hexValue": "4e6f7420656e6f756768206e65696768626f72732070726f7669646564",
-                        "id": 1522,
+                        "id": 1942,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "15976:31:0",
+                        "src": "16400:31:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_83d08d6dcf099c52fbe149a08cb4ffd65f3fec6dbf87dba7bc08b7a534982441",
                           "typeString": "literal_string \"Not enough neighbors provided\""
@@ -71963,7 +74668,7 @@
                           "typeString": "literal_string \"Not enough neighbors provided\""
                         }
                       ],
-                      "id": 1515,
+                      "id": 1935,
                       "name": "require",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
@@ -71971,13 +74676,13 @@
                         4294967278
                       ],
                       "referencedDeclaration": 4294967278,
-                      "src": "15936:7:0",
+                      "src": "16360:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (bool,string memory) pure"
                       }
                     },
-                    "id": 1523,
+                    "id": 1943,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -71985,31 +74690,31 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "15936:72:0",
+                    "src": "16360:72:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 1524,
+                  "id": 1944,
                   "nodeType": "ExpressionStatement",
-                  "src": "15936:72:0"
+                  "src": "16360:72:6"
                 },
                 {
                   "assignments": [
-                    1526
+                    1946
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 1526,
+                      "id": 1946,
                       "mutability": "mutable",
                       "name": "h",
-                      "nameLocation": "16026:1:0",
+                      "nameLocation": "16450:1:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1596,
-                      "src": "16018:9:0",
+                      "scope": 2027,
+                      "src": "16442:9:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -72017,10 +74722,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 1525,
+                        "id": 1945,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "16018:7:0",
+                        "src": "16442:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -72029,18 +74734,18 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 1534,
+                  "id": 1954,
                   "initialValue": {
                     "arguments": [
                       {
                         "arguments": [
                           {
-                            "id": 1531,
+                            "id": 1951,
                             "name": "eotp",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1512,
-                            "src": "16050:4:0",
+                            "referencedDeclaration": 1932,
+                            "src": "16474:4:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
@@ -72055,39 +74760,39 @@
                             }
                           ],
                           "expression": {
-                            "id": 1529,
+                            "id": 1949,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "16037:5:0",
+                            "src": "16461:5:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                               "typeString": "type(bytes storage pointer)"
                             },
                             "typeName": {
-                              "id": 1528,
+                              "id": 1948,
                               "name": "bytes",
                               "nodeType": "ElementaryTypeName",
-                              "src": "16037:5:0",
+                              "src": "16461:5:6",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 1530,
+                          "id": 1950,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "concat",
                           "nodeType": "MemberAccess",
-                          "src": "16037:12:0",
+                          "src": "16461:12:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                             "typeString": "function () pure returns (bytes memory)"
                           }
                         },
-                        "id": 1532,
+                        "id": 1952,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -72095,7 +74800,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "16037:18:0",
+                        "src": "16461:18:6",
                         "tryCall": false,
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_memory_ptr",
@@ -72110,18 +74815,18 @@
                           "typeString": "bytes memory"
                         }
                       ],
-                      "id": 1527,
+                      "id": 1947,
                       "name": "sha256",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 4294967274,
-                      "src": "16030:6:0",
+                      "src": "16454:6:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_sha256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                         "typeString": "function (bytes memory) pure returns (bytes32)"
                       }
                     },
-                    "id": 1533,
+                    "id": 1953,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -72129,7 +74834,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "16030:26:0",
+                    "src": "16454:26:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
@@ -72137,13 +74842,144 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "16018:38:0"
+                  "src": "16442:38:6"
+                },
+                {
+                  "condition": {
+                    "commonType": {
+                      "typeIdentifier": "t_uint32",
+                      "typeString": "uint32"
+                    },
+                    "id": 1959,
+                    "isConstant": false,
+                    "isLValue": false,
+                    "isPure": false,
+                    "lValueRequested": false,
+                    "leftExpression": {
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+                      "name": "position",
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+                      "referencedDeclaration": 1930,
+                      "src": "16494:8:6",
+                      "typeDescriptions": {
+                        "typeIdentifier": "t_uint32",
+                        "typeString": "uint32"
+                      }
+                    },
+                    "nodeType": "BinaryOperation",
+                    "operator": "==",
+                    "rightExpression": {
+                      "commonType": {
+                        "typeIdentifier": "t_uint32",
+                        "typeString": "uint32"
+                      },
+                      "id": 1958,
+                      "isConstant": false,
+                      "isLValue": false,
+                      "isPure": false,
+                      "lValueRequested": false,
+                      "leftExpression": {
+                        "id": 1956,
+                        "name": "_numLeaves",
+                        "nodeType": "Identifier",
+                        "overloadedDeclarations": [],
+                        "referencedDeclaration": 449,
+                        "src": "16506:10:6",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_uint32",
+                          "typeString": "uint32"
+                        }
+                      },
+                      "nodeType": "BinaryOperation",
+                      "operator": "-",
+                      "rightExpression": {
+                        "hexValue": "31",
+                        "id": 1957,
+                        "isConstant": false,
+                        "isLValue": false,
+                        "isPure": true,
+                        "kind": "number",
+                        "lValueRequested": false,
+                        "nodeType": "Literal",
+                        "src": "16519:1:6",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_rational_1_by_1",
+                          "typeString": "int_const 1"
+                        },
+                        "value": "1"
+                      },
+                      "src": "16506:14:6",
+                      "typeDescriptions": {
+                        "typeIdentifier": "t_uint32",
+                        "typeString": "uint32"
+                      }
+                    },
+                    "src": "16494:26:6",
+                    "typeDescriptions": {
+                      "typeIdentifier": "t_bool",
+                      "typeString": "bool"
+                    }
+                  },
+                  "id": 1965,
+                  "nodeType": "IfStatement",
+                  "src": "16490:107:6",
+                  "trueBody": {
+                    "id": 1964,
+                    "nodeType": "Block",
+                    "src": "16522:75:6",
+                    "statements": [
+                      {
+                        "expression": {
+                          "id": 1962,
+                          "isConstant": false,
+                          "isLValue": false,
+                          "isPure": false,
+                          "lValueRequested": false,
+                          "leftHandSide": {
+                            "id": 1960,
+                            "name": "h",
+                            "nodeType": "Identifier",
+                            "overloadedDeclarations": [],
+                            "referencedDeclaration": 1946,
+                            "src": "16578:1:6",
+                            "typeDescriptions": {
+                              "typeIdentifier": "t_bytes32",
+                              "typeString": "bytes32"
+                            }
+                          },
+                          "nodeType": "Assignment",
+                          "operator": "=",
+                          "rightHandSide": {
+                            "id": 1961,
+                            "name": "eotp",
+                            "nodeType": "Identifier",
+                            "overloadedDeclarations": [],
+                            "referencedDeclaration": 1932,
+                            "src": "16582:4:6",
+                            "typeDescriptions": {
+                              "typeIdentifier": "t_bytes32",
+                              "typeString": "bytes32"
+                            }
+                          },
+                          "src": "16578:8:6",
+                          "typeDescriptions": {
+                            "typeIdentifier": "t_bytes32",
+                            "typeString": "bytes32"
+                          }
+                        },
+                        "id": 1963,
+                        "nodeType": "ExpressionStatement",
+                        "src": "16578:8:6"
+                      }
+                    ]
+                  }
                 },
                 {
                   "body": {
-                    "id": 1586,
+                    "id": 2017,
                     "nodeType": "Block",
-                    "src": "16105:237:0",
+                    "src": "16645:237:6",
                     "statements": [
                       {
                         "condition": {
@@ -72151,7 +74987,7 @@
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           },
-                          "id": 1552,
+                          "id": 1983,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -72163,18 +74999,18 @@
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
                                 },
-                                "id": 1549,
+                                "id": 1980,
                                 "isConstant": false,
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                                 "lValueRequested": false,
                                 "leftExpression": {
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                                   "name": "position",
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                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 1510,
-                                  "src": "16124:8:0",
+                                  "referencedDeclaration": 1930,
+                                  "src": "16664:8:6",
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                                     "typeString": "uint32"
@@ -72184,35 +75020,35 @@
                                 "operator": "&",
                                 "rightExpression": {
                                   "hexValue": "30783031",
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                                   "nodeType": "Literal",
-                                  "src": "16135:4:0",
+                                  "src": "16675:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_rational_1_by_1",
                                     "typeString": "int_const 1"
                                   },
                                   "value": "0x01"
                                 },
-                                "src": "16124:15:0",
+                                "src": "16664:15:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
                                 }
                               }
                             ],
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                             "nodeType": "TupleExpression",
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+                            "src": "16663:17:6",
                             "typeDescriptions": {
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                               "typeString": "uint32"
@@ -72222,45 +75058,45 @@
                           "operator": "==",
                           "rightExpression": {
                             "hexValue": "30783031",
-                            "id": 1551,
+                            "id": 1982,
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                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "16144:4:0",
+                            "src": "16684:4:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_1_by_1",
                               "typeString": "int_const 1"
                             },
                             "value": "0x01"
                           },
-                          "src": "16123:25:0",
+                          "src": "16663:25:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
                         "falseBody": {
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+                          "id": 2011,
                           "nodeType": "Block",
-                          "src": "16230:74:0",
+                          "src": "16770:74:6",
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                                 "lValueRequested": false,
                                 "leftHandSide": {
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+                                  "id": 1998,
                                   "name": "h",
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-                                  "referencedDeclaration": 1526,
-                                  "src": "16248:1:0",
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+                                  "src": "16788:1:6",
                                   "typeDescriptions": {
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                                     "typeString": "bytes32"
@@ -72273,12 +75109,12 @@
                                     {
                                       "arguments": [
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-                                          "src": "16272:1:0",
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+                                          "src": "16812:1:6",
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                                             "typeString": "bytes32"
@@ -72286,25 +75122,25 @@
                                         },
                                         {
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-                                            "src": "16275:9:0",
+                                            "referencedDeclaration": 1928,
+                                            "src": "16815:9:6",
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                                               "typeString": "bytes32[] calldata"
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@@ -72315,7 +75151,7 @@
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                                           "nodeType": "IndexAccess",
-                                          "src": "16275:12:0",
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@@ -72334,39 +75170,39 @@
                                           }
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                                           "nodeType": "ElementaryTypeNameExpression",
-                                          "src": "16259:5:0",
+                                          "src": "16799:5:6",
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                                             "typeString": "type(bytes storage pointer)"
                                           },
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+                                            "id": 2000,
                                             "name": "bytes",
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                                         "memberName": "concat",
                                         "nodeType": "MemberAccess",
-                                        "src": "16259:12:0",
+                                        "src": "16799:12:6",
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                                           "typeString": "function () pure returns (bytes memory)"
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                                       },
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@@ -72374,7 +75210,7 @@
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@@ -72389,18 +75225,18 @@
                                         "typeString": "bytes memory"
                                       }
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                                     "referencedDeclaration": 4294967274,
-                                    "src": "16252:6:0",
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                                     "typeDescriptions": {
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                                       "typeString": "function (bytes memory) pure returns (bytes32)"
                                     }
                                   },
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@@ -72408,47 +75244,47 @@
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                                     "typeString": "bytes32"
                                   }
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                                   "typeString": "bytes32"
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+                              "src": "16788:41:6"
                             }
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                         "nodeType": "IfStatement",
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@@ -72462,25 +75298,25 @@
                                       "arguments": [
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-                                            "src": "16192:9:0",
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+                                            "src": "16732:9:6",
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                                               "typeString": "bytes32[] calldata"
                                             }
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-                                            "src": "16202:1:0",
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@@ -72491,19 +75327,19 @@
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                                           "nodeType": "IndexAccess",
-                                          "src": "16192:12:0",
+                                          "src": "16732:12:6",
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                                             "typeString": "bytes32"
                                           }
                                         },
                                         {
-                                          "id": 1561,
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-                                          "src": "16206:1:0",
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@@ -72522,39 +75358,39 @@
                                           }
                                         ],
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                                           "nodeType": "ElementaryTypeNameExpression",
-                                          "src": "16179:5:0",
+                                          "src": "16719:5:6",
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                                             "typeString": "type(bytes storage pointer)"
                                           },
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+                                            "id": 1986,
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                                         "memberName": "concat",
                                         "nodeType": "MemberAccess",
-                                        "src": "16179:12:0",
+                                        "src": "16719:12:6",
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                                           "typeString": "function () pure returns (bytes memory)"
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@@ -72562,7 +75398,7 @@
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-                                      "src": "16179:29:0",
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@@ -72577,18 +75413,18 @@
                                         "typeString": "bytes memory"
                                       }
                                     ],
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+                                    "id": 1985,
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-                                    "src": "16172:6:0",
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                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_sha256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                       "typeString": "function (bytes memory) pure returns (bytes32)"
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                                   },
-                                  "id": 1563,
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@@ -72596,40 +75432,40 @@
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                                   "nodeType": "FunctionCall",
-                                  "src": "16172:37:0",
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                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
                                     "typeString": "bytes32"
                                   }
                                 },
-                                "src": "16168:41:0",
+                                "src": "16708:41:6",
                                 "typeDescriptions": {
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                                   "typeString": "bytes32"
                                 }
                               },
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                               "nodeType": "ExpressionStatement",
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+                              "src": "16708:41:6"
                             }
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                         }
                       },
                       {
                         "expression": {
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+                          "id": 2015,
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                           "lValueRequested": false,
                           "leftHandSide": {
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+                            "id": 2013,
                             "name": "position",
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-                            "referencedDeclaration": 1510,
-                            "src": "16317:8:0",
+                            "referencedDeclaration": 1930,
+                            "src": "16857:8:6",
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                               "typeString": "uint32"
@@ -72639,29 +75475,29 @@
                           "operator": ">>=",
                           "rightHandSide": {
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+                            "id": 2014,
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                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "16330:1:0",
+                            "src": "16870:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_1_by_1",
                               "typeString": "int_const 1"
                             },
                             "value": "1"
                           },
-                          "src": "16317:14:0",
+                          "src": "16857:14:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "id": 1585,
+                        "id": 2016,
                         "nodeType": "ExpressionStatement",
-                        "src": "16317:14:0"
+                        "src": "16857:14:6"
                       }
                     ]
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@@ -72670,18 +75506,18 @@
                       "typeIdentifier": "t_uint8",
                       "typeString": "uint8"
                     },
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@@ -72694,18 +75530,18 @@
                         "typeIdentifier": "t_uint8",
                         "typeString": "uint8"
                       },
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                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 52,
-                        "src": "16088:6:0",
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+                        "src": "16628:6:6",
                         "typeDescriptions": {
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                           "typeString": "uint8"
@@ -72715,47 +75551,47 @@
                       "operator": "-",
                       "rightExpression": {
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                         "kind": "number",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "16097:1:0",
+                        "src": "16637:1:6",
                         "typeDescriptions": {
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                           "typeString": "int_const 1"
                         },
                         "value": "1"
                       },
-                      "src": "16088:10:0",
+                      "src": "16628:10:6",
                       "typeDescriptions": {
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                         "typeString": "uint8"
                       }
                     },
-                    "src": "16084:14:0",
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+                        "id": 1967,
                         "mutability": "mutable",
                         "name": "i",
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                         "nodeType": "VariableDeclaration",
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-                        "src": "16071:7:0",
+                        "scope": 2018,
+                        "src": "16611:7:6",
                         "stateVariable": false,
                         "storageLocation": "default",
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@@ -72763,10 +75599,10 @@
                           "typeString": "uint8"
                         },
                         "typeName": {
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+                          "id": 1966,
                           "name": "uint8",
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-                          "src": "16071:5:0",
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                             "typeString": "uint8"
@@ -72775,17 +75611,17 @@
                         "visibility": "internal"
                       }
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                         "typeString": "int_const 0"
@@ -72793,11 +75629,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "16071:11:0"
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@@ -72805,14 +75641,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
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-                        "src": "16100:1:0",
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+                        "src": "16640:1:6",
                         "typeDescriptions": {
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@@ -72823,12 +75659,12 @@
                         "typeString": "uint8"
                       }
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@@ -72838,18 +75674,18 @@
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         },
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@@ -73026,13 +75862,13 @@
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@@ -73052,40 +75888,40 @@
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@@ -73146,10 +75982,10 @@
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@@ -73195,26 +76031,26 @@
                           "typeString": "uint256"
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                               "typeString": "bytes32"
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@@ -73271,28 +76107,28 @@
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@@ -73303,86 +76139,86 @@
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@@ -73393,14 +76229,14 @@
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@@ -73408,32 +76244,32 @@
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@@ -73443,107 +76279,107 @@
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@@ -73555,19 +76391,19 @@
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@@ -73575,33 +76411,33 @@
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                                 "typeString": "uint32"
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+                                    "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
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@@ -73614,18 +76450,18 @@
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
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                                     "typeString": "uint32"
@@ -73634,41 +76470,41 @@
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                                   "typeDescriptions": {
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                                     "typeString": "uint32"
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-                                "src": "18005:21:0",
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                                   "typeString": "uint32"
                                 }
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-                              "src": "17990:36:0",
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                                 "typeString": "bool"
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@@ -73682,18 +76518,18 @@
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@@ -73703,40 +76539,40 @@
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                         "typeString": "uint256"
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@@ -73744,14 +76580,14 @@
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@@ -73762,12 +76598,12 @@
                         "typeString": "uint32"
                       }
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@@ -73775,18 +76611,18 @@
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@@ -73796,63 +76632,63 @@
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                         "typeString": "int_const 0"
                       },
                       "value": "0"
                     },
-                    "src": "18245:16:0",
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                             "name": "hash",
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@@ -73860,10 +76696,10 @@
                               "typeString": "bytes32"
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@@ -73872,28 +76708,28 @@
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                               "typeString": "bytes32[] storage ref"
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@@ -73904,86 +76740,86 @@
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                             "typeString": "bytes32"
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+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit[]"
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                             "typeDescriptions": {
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+                              "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                               "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
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@@ -73994,24 +76830,24 @@
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+                            "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                             "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
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@@ -74019,28 +76855,28 @@
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+                                      "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
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@@ -74051,9 +76887,9 @@
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                                   "nodeType": "IndexAccess",
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+                                    "typeIdentifier": "t_struct$_Commit_$504_storage",
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@@ -74062,9 +76898,9 @@
                                   "typeString": "tuple()"
                                 }
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+                              "src": "19260:12:6"
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@@ -74073,18 +76909,18 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
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                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1693,
-                            "src": "18682:1:0",
+                            "referencedDeclaration": 2124,
+                            "src": "19222:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -74094,51 +76930,51 @@
                           "operator": "<",
                           "rightExpression": {
                             "expression": {
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+                              "id": 2128,
                               "name": "cc",
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                               "overloadedDeclarations": [],
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-                              "src": "18686:2:0",
+                              "referencedDeclaration": 2118,
+                              "src": "19226:2:6",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                                "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                               }
                             },
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                             "lValueRequested": false,
                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "18686:9:0",
+                            "src": "19226:9:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "18682:13:0",
+                          "src": "19222:13:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
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+                        "id": 2140,
                         "initializationExpression": {
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+                            2124
                           ],
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                               "constant": false,
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+                              "id": 2124,
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                               "name": "j",
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@@ -74146,10 +76982,10 @@
                                 "typeString": "uint32"
                               },
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-                                "id": 1692,
+                                "id": 2123,
                                 "name": "uint32",
                                 "nodeType": "ElementaryTypeName",
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+                                "src": "19208:6:6",
                                 "typeDescriptions": {
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                                   "typeString": "uint32"
@@ -74158,17 +76994,17 @@
                               "visibility": "internal"
                             }
                           ],
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                           "initialValue": {
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                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "18679:1:0",
+                            "src": "19219:1:6",
                             "typeDescriptions": {
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                               "typeString": "int_const 0"
@@ -74176,11 +77012,11 @@
                             "value": "0"
                           },
                           "nodeType": "VariableDeclarationStatement",
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+                          "src": "19208:12:6"
                         },
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@@ -74188,14 +77024,14 @@
                             "nodeType": "UnaryOperation",
                             "operator": "++",
                             "prefix": false,
-                            "src": "18697:3:0",
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                                 "typeString": "uint32"
@@ -74206,16 +77042,16 @@
                               "typeString": "uint32"
                             }
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@@ -74223,28 +77059,28 @@
                           "nodeType": "UnaryOperation",
                           "operator": "delete",
                           "prefix": true,
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                               "name": "commitLocker",
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-                              "src": "18767:12:0",
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+                              "src": "19307:12:6",
                               "typeDescriptions": {
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+                                "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                                 "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
                               }
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                                 "typeString": "bytes32"
@@ -74255,9 +77091,9 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
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+                            "src": "19307:18:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage",
+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
                             }
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@@ -74266,9 +77102,9 @@
                             "typeString": "tuple()"
                           }
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@@ -74277,18 +77113,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
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                         "typeString": "uint32"
@@ -74297,38 +77133,38 @@
                     "nodeType": "BinaryOperation",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "18534:15:0",
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                       "typeString": "bool"
                     }
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                     ],
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                       {
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                         "mutability": "mutable",
                         "name": "i",
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+                        "nameLocation": "19067:1:6",
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-                        "src": "18520:8:0",
+                        "scope": 2147,
+                        "src": "19060:8:6",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -74336,10 +77172,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
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+                          "id": 2098,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "18520:6:0",
+                          "src": "19060:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -74348,17 +77184,17 @@
                         "visibility": "internal"
                       }
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                       "nodeType": "Literal",
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                         "typeString": "int_const 0"
@@ -74366,11 +77202,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
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+                    "src": "19060:12:6"
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@@ -74378,14 +77214,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
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                         "overloadedDeclarations": [],
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-                        "src": "18551:1:0",
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                           "typeString": "uint32"
@@ -74396,27 +77232,27 @@
                         "typeString": "uint32"
                       }
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@@ -74424,10 +77260,10 @@
                         "typeString": "uint32"
                       },
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+                        "id": 2148,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
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                         "typeDescriptions": {
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                           "typeString": "uint32"
@@ -74436,30 +77272,30 @@
                       "visibility": "internal"
                     }
                   ],
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+                  "id": 2155,
                   "initialValue": {
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                       {
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                           "name": "commits",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 117,
-                          "src": "19001:7:0",
+                          "referencedDeclaration": 507,
+                          "src": "19541:7:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_array$_t_bytes32_$dyn_storage",
                             "typeString": "bytes32[] storage ref"
                           }
                         },
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+                        "id": 2153,
                         "isConstant": false,
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                         "lValueRequested": false,
                         "memberName": "length",
                         "nodeType": "MemberAccess",
-                        "src": "19001:14:0",
+                        "src": "19541:14:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -74473,26 +77309,26 @@
                           "typeString": "uint256"
                         }
                       ],
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                       "nodeType": "ElementaryTypeNameExpression",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_type$_t_uint32_$",
                         "typeString": "type(uint32)"
                       },
                       "typeName": {
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+                        "id": 2150,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
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                         "typeDescriptions": {}
                       }
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@@ -74500,7 +77336,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "18994:22:0",
+                    "src": "19534:22:6",
                     "tryCall": false,
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@@ -74508,57 +77344,57 @@
                     }
                   },
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+                  "src": "19521:35:6"
                 },
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+                    "id": 2177,
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+                        "id": 2176,
                         "nodeType": "UncheckedBlock",
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                         "statements": [
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                               "leftHandSide": {
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+                                  "id": 2166,
                                   "name": "commits",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 117,
-                                  "src": "19102:7:0",
+                                  "referencedDeclaration": 507,
+                                  "src": "19642:7:6",
                                   "typeDescriptions": {
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                                     "typeString": "bytes32[] storage ref"
                                   }
                                 },
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+                                "id": 2170,
                                 "indexExpression": {
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                                     "typeString": "uint32"
                                   },
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                                   "lValueRequested": false,
                                   "leftExpression": {
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                                     "name": "i",
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@@ -74567,18 +77403,18 @@
                                   "nodeType": "BinaryOperation",
                                   "operator": "-",
                                   "rightExpression": {
-                                    "id": 1737,
+                                    "id": 2168,
                                     "name": "timelyIndex",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1602,
-                                    "src": "19114:11:0",
+                                    "referencedDeclaration": 2033,
+                                    "src": "19654:11:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     }
                                   },
-                                  "src": "19110:15:0",
+                                  "src": "19650:15:6",
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                                     "typeString": "uint32"
@@ -74589,7 +77425,7 @@
                                 "isPure": false,
                                 "lValueRequested": true,
                                 "nodeType": "IndexAccess",
-                                "src": "19102:24:0",
+                                "src": "19642:24:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -74599,25 +77435,25 @@
                               "operator": "=",
                               "rightHandSide": {
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+                                  "id": 2171,
                                   "name": "commits",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 117,
-                                  "src": "19129:7:0",
+                                  "referencedDeclaration": 507,
+                                  "src": "19669:7:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_array$_t_bytes32_$dyn_storage",
                                     "typeString": "bytes32[] storage ref"
                                   }
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+                                  "src": "19677:1:6",
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                                     "typeString": "uint32"
@@ -74628,21 +77464,21 @@
                                 "isPure": false,
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                                 "nodeType": "IndexAccess",
-                                "src": "19129:10:0",
+                                "src": "19669:10:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
                                 }
                               },
-                              "src": "19102:37:0",
+                              "src": "19642:37:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
                               }
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+                            "src": "19642:37:6"
                           }
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@@ -74653,18 +77489,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
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@@ -74673,38 +77509,38 @@
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                         "typeString": "uint32"
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-                    "src": "19055:7:0",
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                         "constant": false,
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                         "mutability": "mutable",
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                         "nodeType": "VariableDeclaration",
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-                        "src": "19031:8:0",
+                        "scope": 2178,
+                        "src": "19571:8:6",
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@@ -74712,10 +77548,10 @@
                           "typeString": "uint32"
                         },
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+                          "id": 2156,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "19031:6:0",
+                          "src": "19571:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -74724,25 +77560,25 @@
                         "visibility": "internal"
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                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
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-                    "src": "19031:22:0"
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@@ -74750,14 +77586,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "19064:3:0",
+                      "src": "19604:3:6",
                       "subExpression": {
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                         "overloadedDeclarations": [],
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-                        "src": "19064:1:0",
+                        "referencedDeclaration": 2157,
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                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -74768,18 +77604,18 @@
                         "typeString": "uint32"
                       }
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@@ -74787,31 +77623,31 @@
                           "expression": {
                             "argumentTypes": [],
                             "expression": {
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+                              "id": 2189,
                               "name": "commits",
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+                              "referencedDeclaration": 507,
+                              "src": "19764:7:6",
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                                 "typeIdentifier": "t_array$_t_bytes32_$dyn_storage",
                                 "typeString": "bytes32[] storage ref"
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                             "lValueRequested": false,
                             "memberName": "pop",
                             "nodeType": "MemberAccess",
-                            "src": "19224:11:0",
+                            "src": "19764:11:6",
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                               "typeString": "function (bytes32[] storage pointer)"
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@@ -74819,16 +77655,16 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "19224:13:0",
+                          "src": "19764:13:6",
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                             "typeString": "tuple()"
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@@ -74837,18 +77673,18 @@
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                       "typeString": "uint32"
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@@ -74857,38 +77693,38 @@
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                         "typeString": "uint32"
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@@ -74896,10 +77732,10 @@
                           "typeString": "uint32"
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                             "typeString": "uint32"
@@ -74908,17 +77744,17 @@
                         "visibility": "internal"
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@@ -74926,11 +77762,11 @@
                       "value": "0"
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@@ -74938,14 +77774,14 @@
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@@ -74956,51 +77792,51 @@
                         "typeString": "uint32"
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               "text": "Remove old commits from storage, where the commit's timestamp is older than block.timestamp - REVEAL_MAX_DELAY. The purpose is to remove dangling data from blockchain, and prevent commits grow unbounded. This is executed at commit time. The committer pays for the gas of this cleanup. Therefore, any attacker who intend to spam commits would be disincentivized. The attacker would not succeed in preventing any normal operation by the user."
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@@ -75008,7 +77844,7 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
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@@ -75018,7 +77854,7 @@
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
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@@ -75027,25 +77863,25 @@
                         "arguments": [
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-                              "src": "19505:5:0",
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                               "typeDescriptions": {
                                 "typeIdentifier": "t_magic_block",
                                 "typeString": "block"
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                             "memberName": "timestamp",
                             "nodeType": "MemberAccess",
-                            "src": "19505:15:0",
+                            "src": "20045:15:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -75059,26 +77895,26 @@
                               "typeString": "uint256"
                             }
                           ],
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                           "nodeType": "ElementaryTypeNameExpression",
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                           "typeDescriptions": {
                             "typeIdentifier": "t_type$_t_uint32_$",
                             "typeString": "type(uint32)"
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-                            "id": 1773,
+                            "id": 2204,
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@@ -75086,7 +77922,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
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@@ -75096,18 +77932,18 @@
                       "nodeType": "BinaryOperation",
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                       "rightExpression": {
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+                        "id": 2209,
                         "name": "commitTime",
                         "nodeType": "Identifier",
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                           "typeString": "uint32"
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                         "typeString": "uint32"
@@ -75116,50 +77952,50 @@
                     "nodeType": "BinaryOperation",
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                         "typeString": "uint32"
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             "modifiers": [],
             "name": "_isRevealTimely",
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@@ -75167,10 +78003,10 @@
                     "typeString": "uint32"
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@@ -75179,21 +78015,21 @@
                   "visibility": "internal"
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+              "src": "19968:19:6"
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                   "nameLocation": "-1:-1:-1",
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@@ -75201,10 +78037,10 @@
                     "typeString": "bool"
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                       "typeString": "bool"
@@ -75213,34 +78049,34 @@
                   "visibility": "internal"
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@@ -75248,10 +78084,10 @@
                         "typeString": "uint32"
                       },
                       "typeName": {
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                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
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                         "typeDescriptions": {
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@@ -75260,24 +78096,24 @@
                       "visibility": "internal"
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                       "name": "indexWithNonce",
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@@ -75286,40 +78122,40 @@
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                       "name": "maxOperationsPerInterval",
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-                      "src": "20017:24:0",
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                       "typeDescriptions": {
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                         "typeString": "uint8"
                       }
                     },
-                    "src": "20000:41:0",
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                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
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                   },
                   "nodeType": "VariableDeclarationStatement",
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+                  "src": "20525:56:6"
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                 {
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                       "name": "nonce",
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                       "nodeType": "VariableDeclaration",
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@@ -75327,10 +78163,10 @@
                         "typeString": "uint8"
                       },
                       "typeName": {
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+                        "id": 2235,
                         "name": "uint8",
                         "nodeType": "ElementaryTypeName",
-                        "src": "20051:5:0",
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                         "typeDescriptions": {
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                           "typeString": "uint8"
@@ -75339,7 +78175,7 @@
                       "visibility": "internal"
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@@ -75347,18 +78183,18 @@
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
                         },
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                         "lValueRequested": false,
                         "leftExpression": {
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+                          "id": 2239,
                           "name": "indexWithNonce",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1789,
-                          "src": "20071:14:0",
+                          "referencedDeclaration": 2220,
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                           "typeDescriptions": {
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                             "typeString": "uint32"
@@ -75367,18 +78203,18 @@
                         "nodeType": "BinaryOperation",
                         "operator": "%",
                         "rightExpression": {
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+                          "id": 2240,
                           "name": "maxOperationsPerInterval",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
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-                          "src": "20088:24:0",
+                          "referencedDeclaration": 447,
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                           "typeDescriptions": {
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
                           }
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+                        "src": "20611:41:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -75392,26 +78228,26 @@
                           "typeString": "uint32"
                         }
                       ],
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                       "nodeType": "ElementaryTypeNameExpression",
-                      "src": "20065:5:0",
+                      "src": "20605:5:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_type$_t_uint8_$",
                         "typeString": "type(uint8)"
                       },
                       "typeName": {
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+                        "id": 2237,
                         "name": "uint8",
                         "nodeType": "ElementaryTypeName",
-                        "src": "20065:5:0",
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                         "typeDescriptions": {}
                       }
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+                    "id": 2242,
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@@ -75419,7 +78255,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "20065:48:0",
+                    "src": "20605:48:6",
                     "tryCall": false,
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@@ -75427,79 +78263,79 @@
                     }
                   },
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-                  "src": "20051:62:0"
+                  "src": "20591:62:6"
                 },
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+                    2248
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+                      "id": 2248,
                       "mutability": "mutable",
                       "name": "cc",
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                       "nodeType": "VariableDeclaration",
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-                      "src": "20123:19:0",
+                      "scope": 2358,
+                      "src": "20663:19:6",
                       "stateVariable": false,
                       "storageLocation": "storage",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                        "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                         "typeString": "struct ONEWallet.Commit[]"
                       },
                       "typeName": {
                         "baseType": {
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+                          "id": 2246,
                           "nodeType": "UserDefinedTypeName",
                           "pathNode": {
-                            "id": 1814,
+                            "id": 2245,
                             "name": "Commit",
                             "nodeType": "IdentifierPath",
-                            "referencedDeclaration": 114,
-                            "src": "20123:6:0"
+                            "referencedDeclaration": 504,
+                            "src": "20663:6:6"
                           },
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-                          "src": "20123:6:0",
+                          "referencedDeclaration": 504,
+                          "src": "20663:6:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                            "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                             "typeString": "struct ONEWallet.Commit"
                           }
                         },
-                        "id": 1816,
+                        "id": 2247,
                         "nodeType": "ArrayTypeName",
-                        "src": "20123:8:0",
+                        "src": "20663:8:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                          "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                           "typeString": "struct ONEWallet.Commit[]"
                         }
                       },
                       "visibility": "internal"
                     }
                   ],
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+                  "id": 2252,
                   "initialValue": {
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+                      "id": 2249,
                       "name": "commitLocker",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
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-                      "src": "20145:12:0",
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+                      "src": "20685:12:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$114_storage_$dyn_storage_$",
+                        "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                         "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
                       }
                     },
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+                    "id": 2251,
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+                      "id": 2250,
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                       "overloadedDeclarations": [],
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-                      "src": "20158:4:0",
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+                      "src": "20698:4:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bytes32",
                         "typeString": "bytes32"
@@ -75510,14 +78346,14 @@
                     "isPure": false,
                     "lValueRequested": false,
                     "nodeType": "IndexAccess",
-                    "src": "20145:18:0",
+                    "src": "20685:18:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage",
+                      "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                       "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "20123:40:0"
+                  "src": "20663:40:6"
                 },
                 {
                   "expression": {
@@ -75527,32 +78363,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 1826,
+                        "id": 2257,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 1823,
+                            "id": 2254,
                             "name": "cc",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1817,
-                            "src": "20181:2:0",
+                            "referencedDeclaration": 2248,
+                            "src": "20721:2:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                             }
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+                          "id": 2255,
                           "isConstant": false,
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                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "20181:9:0",
+                          "src": "20721:9:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -75562,21 +78398,21 @@
                         "operator": ">",
                         "rightExpression": {
                           "hexValue": "30",
-                          "id": 1825,
+                          "id": 2256,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "number",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "20193:1:0",
+                          "src": "20733:1:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_rational_0_by_1",
                             "typeString": "int_const 0"
                           },
                           "value": "0"
                         },
-                        "src": "20181:13:0",
+                        "src": "20721:13:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -75584,14 +78420,14 @@
                       },
                       {
                         "hexValue": "4e6f20636f6d6d697420666f756e64",
-                        "id": 1827,
+                        "id": 2258,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "20196:17:0",
+                        "src": "20736:17:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_38f47be26bf822ff597a5cbffa2774ecae1ceaa169f734b7db0a07fb62c9547a",
                           "typeString": "literal_string \"No commit found\""
@@ -75610,7 +78446,7 @@
                           "typeString": "literal_string \"No commit found\""
                         }
                       ],
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+                      "id": 2253,
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@@ -75618,13 +78454,13 @@
                         4294967278
                       ],
                       "referencedDeclaration": 4294967278,
-                      "src": "20173:7:0",
+                      "src": "20713:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (bool,string memory) pure"
                       }
                     },
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+                    "id": 2259,
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@@ -75632,85 +78468,85 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "20173:41:0",
+                    "src": "20713:41:6",
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                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
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+                  "src": "20713:41:6"
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+                    "id": 2352,
                     "nodeType": "Block",
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+                    "src": "20803:1170:6",
                     "statements": [
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+                          2274
                         ],
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                             "name": "c",
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+                            "nameLocation": "20832:1:6",
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+                            "scope": 2352,
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                             "stateVariable": false,
                             "storageLocation": "storage",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                              "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                               "typeString": "struct ONEWallet.Commit"
                             },
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+                              "id": 2273,
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                                 "name": "Commit",
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+                                "referencedDeclaration": 504,
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                               },
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+                              "referencedDeclaration": 504,
+                              "src": "20817:6:6",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                                "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit"
                               }
                             },
                             "visibility": "internal"
                           }
                         ],
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+                        "id": 2278,
                         "initialValue": {
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                             "name": "cc",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1817,
-                            "src": "20296:2:0",
+                            "referencedDeclaration": 2248,
+                            "src": "20836:2:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                             }
                           },
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+                          "id": 2277,
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                             "name": "i",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1831,
-                            "src": "20299:1:0",
+                            "referencedDeclaration": 2262,
+                            "src": "20839:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -75721,29 +78557,29 @@
                           "isPure": false,
                           "lValueRequested": false,
                           "nodeType": "IndexAccess",
-                          "src": "20296:5:0",
+                          "src": "20836:5:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_Commit_$114_storage",
+                            "typeIdentifier": "t_struct$_Commit_$504_storage",
                             "typeString": "struct ONEWallet.Commit storage ref"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "20277:24:0"
+                        "src": "20817:24:6"
                       },
                       {
                         "assignments": [
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+                          2280
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                             "constant": false,
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+                            "id": 2280,
                             "mutability": "mutable",
                             "name": "expectedVerificationHash",
-                            "nameLocation": "20323:24:0",
+                            "nameLocation": "20863:24:6",
                             "nodeType": "VariableDeclaration",
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+                            "scope": 2352,
+                            "src": "20855:32:6",
                             "stateVariable": false,
                             "storageLocation": "default",
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@@ -75751,10 +78587,10 @@
                               "typeString": "bytes32"
                             },
                             "typeName": {
-                              "id": 1848,
+                              "id": 2279,
                               "name": "bytes32",
                               "nodeType": "ElementaryTypeName",
-                              "src": "20315:7:0",
+                              "src": "20855:7:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -75763,45 +78599,45 @@
                             "visibility": "internal"
                           }
                         ],
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                                     "name": "c",
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-                                    "referencedDeclaration": 1843,
-                                    "src": "20373:1:0",
+                                    "referencedDeclaration": 2274,
+                                    "src": "20913:1:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                                      "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                       "typeString": "struct ONEWallet.Commit storage pointer"
                                     }
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                                   "memberName": "paramsHash",
                                   "nodeType": "MemberAccess",
-                                  "referencedDeclaration": 107,
-                                  "src": "20373:12:0",
+                                  "referencedDeclaration": 497,
+                                  "src": "20913:12:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
                                     "typeString": "bytes32"
                                   }
                                 },
                                 {
-                                  "id": 1856,
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                                   "name": "eotp",
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                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
                                     "typeString": "bytes32"
@@ -75820,39 +78656,39 @@
                                   }
                                 ],
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+                                  "id": 2283,
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                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "20360:5:0",
+                                  "src": "20900:5:6",
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                                     "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                     "typeString": "type(bytes storage pointer)"
                                   },
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+                                    "id": 2282,
                                     "name": "bytes",
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+                                    "src": "20900:5:6",
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                                 "lValueRequested": false,
                                 "memberName": "concat",
                                 "nodeType": "MemberAccess",
-                                "src": "20360:12:0",
+                                "src": "20900:12:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                   "typeString": "function () pure returns (bytes memory)"
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@@ -75860,7 +78696,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "20360:32:0",
+                              "src": "20900:32:6",
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@@ -75875,18 +78711,18 @@
                                 "typeString": "bytes memory"
                               }
                             ],
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                             "name": "keccak256",
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                             "referencedDeclaration": 4294967288,
-                            "src": "20350:9:0",
+                            "src": "20890:9:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                               "typeString": "function (bytes memory) pure returns (bytes32)"
                             }
                           },
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@@ -75894,7 +78730,7 @@
                           "lValueRequested": false,
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                           "nodeType": "FunctionCall",
-                          "src": "20350:43:0",
+                          "src": "20890:43:6",
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                             "typeIdentifier": "t_bytes32",
@@ -75902,7 +78738,7 @@
                           }
                         },
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-                        "src": "20315:78:0"
+                        "src": "20855:78:6"
                       },
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                         "condition": {
@@ -75910,33 +78746,33 @@
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
                           },
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                               "typeDescriptions": {
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+                                "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage pointer"
                               }
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                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
@@ -75945,35 +78781,35 @@
                           "nodeType": "BinaryOperation",
                           "operator": "!=",
                           "rightExpression": {
-                            "id": 1862,
+                            "id": 2293,
                             "name": "expectedVerificationHash",
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                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
                             }
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                           "typeDescriptions": {
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                             "typeString": "bool"
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                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 1910,
+                        "id": 2341,
                         "nodeType": "ExpressionStatement",
-                        "src": "20870:49:0"
+                        "src": "21410:49:6"
                       },
                       {
                         "expression": {
@@ -76622,26 +79458,26 @@
                               "arguments": [
                                 {
                                   "expression": {
-                                    "id": 1913,
+                                    "id": 2344,
                                     "name": "c",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1843,
-                                    "src": "21368:1:0",
+                                    "referencedDeclaration": 2274,
+                                    "src": "21908:1:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                                      "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                       "typeString": "struct ONEWallet.Commit storage pointer"
                                     }
                                   },
-                                  "id": 1914,
+                                  "id": 2345,
                                   "isConstant": false,
                                   "isLValue": true,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "memberName": "timestamp",
                                   "nodeType": "MemberAccess",
-                                  "referencedDeclaration": 111,
-                                  "src": "21368:11:0",
+                                  "referencedDeclaration": 501,
+                                  "src": "21908:11:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint32",
                                     "typeString": "uint32"
@@ -76655,18 +79491,18 @@
                                     "typeString": "uint32"
                                   }
                                 ],
-                                "id": 1912,
+                                "id": 2343,
                                 "name": "_isRevealTimely",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 1784,
-                                "src": "21352:15:0",
+                                "referencedDeclaration": 2215,
+                                "src": "21892:15:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_internal_view$_t_uint32_$returns$_t_bool_$",
                                   "typeString": "function (uint32) view returns (bool)"
                                 }
                               },
-                              "id": 1915,
+                              "id": 2346,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -76674,7 +79510,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "21352:28:0",
+                              "src": "21892:28:6",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bool",
@@ -76683,14 +79519,14 @@
                             },
                             {
                               "hexValue": "52657665616c20746f6f206c617465",
-                              "id": 1916,
+                              "id": 2347,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "kind": "string",
                               "lValueRequested": false,
                               "nodeType": "Literal",
-                              "src": "21382:17:0",
+                              "src": "21922:17:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_stringliteral_286e638d23bc87ce733fb0202708f485eb6091553feef3d943a83966c37e7639",
                                 "typeString": "literal_string \"Reveal too late\""
@@ -76709,7 +79545,7 @@
                                 "typeString": "literal_string \"Reveal too late\""
                               }
                             ],
-                            "id": 1911,
+                            "id": 2342,
                             "name": "require",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [
@@ -76717,13 +79553,13 @@
                               4294967278
                             ],
                             "referencedDeclaration": 4294967278,
-                            "src": "21344:7:0",
+                            "src": "21884:7:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                               "typeString": "function (bool,string memory) pure"
                             }
                           },
-                          "id": 1917,
+                          "id": 2348,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -76731,34 +79567,34 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "21344:56:0",
+                          "src": "21884:56:6",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 1918,
+                        "id": 2349,
                         "nodeType": "ExpressionStatement",
-                        "src": "21344:56:0"
+                        "src": "21884:56:6"
                       },
                       {
                         "expression": {
-                          "id": 1919,
+                          "id": 2350,
                           "name": "i",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1831,
-                          "src": "21421:1:0",
+                          "referencedDeclaration": 2262,
+                          "src": "21961:1:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "functionReturnParameters": 1797,
-                        "id": 1920,
+                        "functionReturnParameters": 2228,
+                        "id": 2351,
                         "nodeType": "Return",
-                        "src": "21414:8:0"
+                        "src": "21954:8:6"
                       }
                     ]
                   },
@@ -76767,18 +79603,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 1837,
+                    "id": 2268,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 1834,
+                      "id": 2265,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1831,
-                      "src": "20243:1:0",
+                      "referencedDeclaration": 2262,
+                      "src": "20783:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -76788,51 +79624,51 @@
                     "operator": "<",
                     "rightExpression": {
                       "expression": {
-                        "id": 1835,
+                        "id": 2266,
                         "name": "cc",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1817,
-                        "src": "20247:2:0",
+                        "referencedDeclaration": 2248,
+                        "src": "20787:2:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                          "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                           "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                         }
                       },
-                      "id": 1836,
+                      "id": 2267,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "20247:9:0",
+                      "src": "20787:9:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "20243:13:0",
+                    "src": "20783:13:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 1922,
+                  "id": 2353,
                   "initializationExpression": {
                     "assignments": [
-                      1831
+                      2262
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 1831,
+                        "id": 2262,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "20236:1:0",
+                        "nameLocation": "20776:1:6",
                         "nodeType": "VariableDeclaration",
-                        "scope": 1922,
-                        "src": "20229:8:0",
+                        "scope": 2353,
+                        "src": "20769:8:6",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -76840,10 +79676,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 1830,
+                          "id": 2261,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "20229:6:0",
+                          "src": "20769:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -76852,17 +79688,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 1833,
+                    "id": 2264,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 1832,
+                      "id": 2263,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "20240:1:0",
+                      "src": "20780:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -76870,11 +79706,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "20229:12:0"
+                    "src": "20769:12:6"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 1839,
+                      "id": 2270,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -76882,14 +79718,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "20258:3:0",
+                      "src": "20798:3:6",
                       "subExpression": {
-                        "id": 1838,
+                        "id": 2269,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1831,
-                        "src": "20258:1:0",
+                        "referencedDeclaration": 2262,
+                        "src": "20798:1:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -76900,26 +79736,26 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 1840,
+                    "id": 2271,
                     "nodeType": "ExpressionStatement",
-                    "src": "20258:3:0"
+                    "src": "20798:3:6"
                   },
                   "nodeType": "ForStatement",
-                  "src": "20224:1209:0"
+                  "src": "20764:1209:6"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
                         "hexValue": "4e6f2076616c696420636f6d6d6974",
-                        "id": 1924,
+                        "id": 2355,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "21449:17:0",
+                        "src": "21989:17:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_c3972966c6b890cd04bd250ec8fd05d1950759334a3d8fa4e9bb3d0693e9952d",
                           "typeString": "literal_string \"No valid commit\""
@@ -76934,7 +79770,7 @@
                           "typeString": "literal_string \"No valid commit\""
                         }
                       ],
-                      "id": 1923,
+                      "id": 2354,
                       "name": "revert",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
@@ -76942,13 +79778,13 @@
                         4294967277
                       ],
                       "referencedDeclaration": 4294967277,
-                      "src": "21442:6:0",
+                      "src": "21982:6:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_revert_pure$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (string memory) pure"
                       }
                     },
-                    "id": 1925,
+                    "id": 2356,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -76956,45 +79792,45 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "21442:25:0",
+                    "src": "21982:25:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 1926,
+                  "id": 2357,
                   "nodeType": "ExpressionStatement",
-                  "src": "21442:25:0"
+                  "src": "21982:25:6"
                 }
               ]
             },
             "documentation": {
-              "id": 1785,
+              "id": 2216,
               "nodeType": "StructuredDocumentation",
-              "src": "19566:275:0",
+              "src": "20106:275:6",
               "text": "This function verifies that the first valid entry with respect to the given `eotp` in `commitLocker[hash]` matches the provided `paramsHash` and `verificationHash`. An entry is valid with respect to `eotp` iff `h3(entry.paramsHash . eotp)` equals `entry.verificationHash`"
             },
-            "id": 1928,
+            "id": 2359,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_verifyReveal",
-            "nameLocation": "19855:13:0",
+            "nameLocation": "20395:13:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 1794,
+              "id": 2225,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 1787,
+                  "id": 2218,
                   "mutability": "mutable",
                   "name": "hash",
-                  "nameLocation": "19877:4:0",
+                  "nameLocation": "20417:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1928,
-                  "src": "19869:12:0",
+                  "scope": 2359,
+                  "src": "20409:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -77002,10 +79838,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 1786,
+                    "id": 2217,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "19869:7:0",
+                    "src": "20409:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -77015,13 +79851,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1789,
+                  "id": 2220,
                   "mutability": "mutable",
                   "name": "indexWithNonce",
-                  "nameLocation": "19890:14:0",
+                  "nameLocation": "20430:14:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1928,
-                  "src": "19883:21:0",
+                  "scope": 2359,
+                  "src": "20423:21:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -77029,10 +79865,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 1788,
+                    "id": 2219,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "19883:6:0",
+                    "src": "20423:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -77042,13 +79878,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1791,
+                  "id": 2222,
                   "mutability": "mutable",
                   "name": "paramsHash",
-                  "nameLocation": "19914:10:0",
+                  "nameLocation": "20454:10:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1928,
-                  "src": "19906:18:0",
+                  "scope": 2359,
+                  "src": "20446:18:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -77056,10 +79892,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 1790,
+                    "id": 2221,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "19906:7:0",
+                    "src": "20446:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -77069,13 +79905,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 1793,
+                  "id": 2224,
                   "mutability": "mutable",
                   "name": "eotp",
-                  "nameLocation": "19934:4:0",
+                  "nameLocation": "20474:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1928,
-                  "src": "19926:12:0",
+                  "scope": 2359,
+                  "src": "20466:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -77083,10 +79919,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 1792,
+                    "id": 2223,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "19926:7:0",
+                    "src": "20466:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -77095,21 +79931,21 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "19868:71:0"
+              "src": "20408:71:6"
             },
             "returnParameters": {
-              "id": 1797,
+              "id": 2228,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 1796,
+                  "id": 2227,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1928,
-                  "src": "19963:6:0",
+                  "scope": 2359,
+                  "src": "20503:6:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -77117,10 +79953,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 1795,
+                    "id": 2226,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "19963:6:0",
+                    "src": "20503:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -77129,91 +79965,91 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "19962:8:0"
+              "src": "20502:8:6"
             },
-            "scope": 2161,
-            "src": "19846:1628:0",
+            "scope": 2592,
+            "src": "20386:1628:6",
             "stateMutability": "view",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 2000,
+              "id": 2431,
               "nodeType": "Block",
-              "src": "21554:464:0",
+              "src": "22094:464:6",
               "statements": [
                 {
                   "assignments": [
-                    1939
+                    2370
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 1939,
+                      "id": 2370,
                       "mutability": "mutable",
                       "name": "cc",
-                      "nameLocation": "21581:2:0",
+                      "nameLocation": "22121:2:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2000,
-                      "src": "21564:19:0",
+                      "scope": 2431,
+                      "src": "22104:19:6",
                       "stateVariable": false,
                       "storageLocation": "storage",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                        "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                         "typeString": "struct ONEWallet.Commit[]"
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 1937,
+                          "id": 2368,
                           "nodeType": "UserDefinedTypeName",
                           "pathNode": {
-                            "id": 1936,
+                            "id": 2367,
                             "name": "Commit",
                             "nodeType": "IdentifierPath",
-                            "referencedDeclaration": 114,
-                            "src": "21564:6:0"
+                            "referencedDeclaration": 504,
+                            "src": "22104:6:6"
                           },
-                          "referencedDeclaration": 114,
-                          "src": "21564:6:0",
+                          "referencedDeclaration": 504,
+                          "src": "22104:6:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                            "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                             "typeString": "struct ONEWallet.Commit"
                           }
                         },
-                        "id": 1938,
+                        "id": 2369,
                         "nodeType": "ArrayTypeName",
-                        "src": "21564:8:0",
+                        "src": "22104:8:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                          "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                           "typeString": "struct ONEWallet.Commit[]"
                         }
                       },
                       "visibility": "internal"
                     }
                   ],
-                  "id": 1943,
+                  "id": 2374,
                   "initialValue": {
                     "baseExpression": {
-                      "id": 1940,
+                      "id": 2371,
                       "name": "commitLocker",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 123,
-                      "src": "21586:12:0",
+                      "referencedDeclaration": 513,
+                      "src": "22126:12:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$114_storage_$dyn_storage_$",
+                        "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                         "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
                       }
                     },
-                    "id": 1942,
+                    "id": 2373,
                     "indexExpression": {
-                      "id": 1941,
+                      "id": 2372,
                       "name": "commitHash",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1930,
-                      "src": "21599:10:0",
+                      "referencedDeclaration": 2361,
+                      "src": "22139:10:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bytes32",
                         "typeString": "bytes32"
@@ -77224,14 +80060,14 @@
                     "isPure": false,
                     "lValueRequested": false,
                     "nodeType": "IndexAccess",
-                    "src": "21586:24:0",
+                    "src": "22126:24:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage",
+                      "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                       "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "21564:46:0"
+                  "src": "22104:46:6"
                 },
                 {
                   "expression": {
@@ -77241,32 +80077,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
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+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
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@@ -77276,21 +80112,21 @@
                         "operator": ">",
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                           "nodeType": "Literal",
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                             "typeString": "int_const 0"
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                           "value": "0"
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@@ -77298,14 +80134,14 @@
                       },
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                         "nodeType": "Literal",
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                           "typeString": "literal_string \"Invalid commit hash\""
@@ -77324,7 +80160,7 @@
                           "typeString": "literal_string \"Invalid commit hash\""
                         }
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@@ -77332,13 +80168,13 @@
                         4294967278
                       ],
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@@ -77346,16 +80182,16 @@
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@@ -77365,32 +80201,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
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                             "typeDescriptions": {
-                              "typeIdentifier": "t_array$_t_struct$_Commit_$114_storage_$dyn_storage_ptr",
+                              "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
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                             "typeString": "uint256"
@@ -77399,18 +80235,18 @@
                         "nodeType": "BinaryOperation",
                         "operator": ">",
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                           "name": "commitIndex",
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                             "typeString": "uint32"
                           }
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-                        "src": "21683:23:0",
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@@ -77418,14 +80254,14 @@
                       },
                       {
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                           "typeString": "literal_string \"Invalid commitIndex\""
@@ -77444,7 +80280,7 @@
                           "typeString": "literal_string \"Invalid commitIndex\""
                         }
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@@ -77452,13 +80288,13 @@
                         4294967278
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@@ -77466,79 +80302,79 @@
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                       "typeDescriptions": {
-                        "typeIdentifier": "t_struct$_Commit_$114_storage_ptr",
+                        "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                         "typeString": "struct ONEWallet.Commit"
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+                        "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                         "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
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@@ -77549,14 +80385,14 @@
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@@ -77566,33 +80402,33 @@
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+                              "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
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@@ -77602,21 +80438,21 @@
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                             "typeString": "int_const 0"
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@@ -77624,14 +80460,14 @@
                       },
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@@ -77650,7 +80486,7 @@
                           "typeString": "literal_string \"Invalid commit timestamp\""
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@@ -77658,13 +80494,13 @@
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@@ -77672,31 +80508,31 @@
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@@ -77704,10 +80540,10 @@
                         "typeString": "uint32"
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@@ -77716,13 +80552,13 @@
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@@ -77732,7 +80568,7 @@
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+                                "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage pointer"
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@@ -77774,26 +80610,26 @@
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@@ -77811,18 +80647,18 @@
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@@ -77831,36 +80667,36 @@
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@@ -77874,18 +80710,18 @@
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@@ -78611,22 +81447,22 @@
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@@ -78634,10 +81470,10 @@
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@@ -78646,17 +81482,17 @@
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@@ -78664,28 +81500,28 @@
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@@ -78693,10 +81529,10 @@
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@@ -78705,28 +81541,28 @@
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@@ -78841,35 +81677,35 @@
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@@ -78895,25 +81731,25 @@
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@@ -78921,28 +81757,28 @@
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@@ -78953,7 +81789,7 @@
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@@ -78964,9 +81800,9 @@
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@@ -78978,18 +81814,18 @@
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@@ -79051,10 +81887,10 @@
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@@ -79063,17 +81899,17 @@
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@@ -79081,11 +81917,11 @@
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@@ -79093,14 +81929,14 @@
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@@ -79111,27 +81947,27 @@
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@@ -79140,18 +81976,18 @@
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@@ -79160,16 +81996,16 @@
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@@ -79183,38 +82019,38 @@
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                           "typeString": "uint32[]"
                         }
                       }
                     },
-                    "id": 2101,
+                    "id": 2532,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -79222,7 +82058,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "23267:29:0",
+                    "src": "23807:29:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
@@ -79230,42 +82066,42 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "23236:60:0"
+                  "src": "23776:60:6"
                 },
                 {
                   "body": {
-                    "id": 2121,
+                    "id": 2552,
                     "nodeType": "Block",
-                    "src": "23350:59:0",
+                    "src": "23890:59:6",
                     "statements": [
                       {
                         "expression": {
-                          "id": 2119,
+                          "id": 2550,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
                             "baseExpression": {
-                              "id": 2113,
+                              "id": 2544,
                               "name": "reducedArray",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2096,
-                              "src": "23364:12:0",
+                              "referencedDeclaration": 2527,
+                              "src": "23904:12:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
                                 "typeString": "uint32[] memory"
                               }
                             },
-                            "id": 2115,
+                            "id": 2546,
                             "indexExpression": {
-                              "id": 2114,
+                              "id": 2545,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2104,
-                              "src": "23377:1:0",
+                              "referencedDeclaration": 2535,
+                              "src": "23917:1:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint8",
                                 "typeString": "uint8"
@@ -79276,7 +82112,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "23364:15:0",
+                            "src": "23904:15:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -79286,25 +82122,25 @@
                           "operator": "=",
                           "rightHandSide": {
                             "baseExpression": {
-                              "id": 2116,
+                              "id": 2547,
                               "name": "nonZeroNonces",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2040,
-                              "src": "23382:13:0",
+                              "referencedDeclaration": 2471,
+                              "src": "23922:13:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
                                 "typeString": "uint32[] memory"
                               }
                             },
-                            "id": 2118,
+                            "id": 2549,
                             "indexExpression": {
-                              "id": 2117,
+                              "id": 2548,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2104,
-                              "src": "23396:1:0",
+                              "referencedDeclaration": 2535,
+                              "src": "23936:1:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint8",
                                 "typeString": "uint8"
@@ -79315,21 +82151,21 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "23382:16:0",
+                            "src": "23922:16:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
                             }
                           },
-                          "src": "23364:34:0",
+                          "src": "23904:34:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "id": 2120,
+                        "id": 2551,
                         "nodeType": "ExpressionStatement",
-                        "src": "23364:34:0"
+                        "src": "23904:34:6"
                       }
                     ]
                   },
@@ -79338,18 +82174,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
-                    "id": 2109,
+                    "id": 2540,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 2107,
+                      "id": 2538,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2104,
-                      "src": "23324:1:0",
+                      "referencedDeclaration": 2535,
+                      "src": "23864:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint8",
                         "typeString": "uint8"
@@ -79358,38 +82194,38 @@
                     "nodeType": "BinaryOperation",
                     "operator": "<",
                     "rightExpression": {
-                      "id": 2108,
+                      "id": 2539,
                       "name": "numValidIndices",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2049,
-                      "src": "23328:15:0",
+                      "referencedDeclaration": 2480,
+                      "src": "23868:15:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "23324:19:0",
+                    "src": "23864:19:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2122,
+                  "id": 2553,
                   "initializationExpression": {
                     "assignments": [
-                      2104
+                      2535
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 2104,
+                        "id": 2535,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "23317:1:0",
+                        "nameLocation": "23857:1:6",
                         "nodeType": "VariableDeclaration",
-                        "scope": 2122,
-                        "src": "23311:7:0",
+                        "scope": 2553,
+                        "src": "23851:7:6",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -79397,10 +82233,10 @@
                           "typeString": "uint8"
                         },
                         "typeName": {
-                          "id": 2103,
+                          "id": 2534,
                           "name": "uint8",
                           "nodeType": "ElementaryTypeName",
-                          "src": "23311:5:0",
+                          "src": "23851:5:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
@@ -79409,17 +82245,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2106,
+                    "id": 2537,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 2105,
+                      "id": 2536,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "23321:1:0",
+                      "src": "23861:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -79427,11 +82263,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "23311:11:0"
+                    "src": "23851:11:6"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 2111,
+                      "id": 2542,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -79439,14 +82275,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "23345:3:0",
+                      "src": "23885:3:6",
                       "subExpression": {
-                        "id": 2110,
+                        "id": 2541,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2104,
-                        "src": "23345:1:0",
+                        "referencedDeclaration": 2535,
+                        "src": "23885:1:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint8",
                           "typeString": "uint8"
@@ -79457,27 +82293,27 @@
                         "typeString": "uint8"
                       }
                     },
-                    "id": 2112,
+                    "id": 2543,
                     "nodeType": "ExpressionStatement",
-                    "src": "23345:3:0"
+                    "src": "23885:3:6"
                   },
                   "nodeType": "ForStatement",
-                  "src": "23306:103:0"
+                  "src": "23846:103:6"
                 },
                 {
                   "expression": {
-                    "id": 2125,
+                    "id": 2556,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftHandSide": {
-                      "id": 2123,
+                      "id": 2554,
                       "name": "nonceTracker",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 77,
-                      "src": "23418:12:0",
+                      "referencedDeclaration": 466,
+                      "src": "23958:12:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_array$_t_uint32_$dyn_storage",
                         "typeString": "uint32[] storage ref"
@@ -79486,80 +82322,80 @@
                     "nodeType": "Assignment",
                     "operator": "=",
                     "rightHandSide": {
-                      "id": 2124,
+                      "id": 2555,
                       "name": "reducedArray",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2096,
-                      "src": "23433:12:0",
+                      "referencedDeclaration": 2527,
+                      "src": "23973:12:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
                         "typeString": "uint32[] memory"
                       }
                     },
-                    "src": "23418:27:0",
+                    "src": "23958:27:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint32_$dyn_storage",
                       "typeString": "uint32[] storage ref"
                     }
                   },
-                  "id": 2126,
+                  "id": 2557,
                   "nodeType": "ExpressionStatement",
-                  "src": "23418:27:0"
+                  "src": "23958:27:6"
                 }
               ]
             },
             "documentation": {
-              "id": 2002,
+              "id": 2433,
               "nodeType": "StructuredDocumentation",
-              "src": "22024:249:0",
+              "src": "22564:249:6",
               "text": "This function removes all tracked nonce values correspond to interval blocks that are older than block.timestamp - REVEAL_MAX_DELAY. In doing so, extraneous data in the blockchain is removed, and both nonces and nonceTracker are bounded in size."
             },
-            "id": 2128,
+            "id": 2559,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_cleanupNonces",
-            "nameLocation": "22287:14:0",
+            "nameLocation": "22827:14:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2003,
+              "id": 2434,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "22301:2:0"
+              "src": "22841:2:6"
             },
             "returnParameters": {
-              "id": 2004,
+              "id": 2435,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "22313:0:0"
+              "src": "22853:0:6"
             },
-            "scope": 2161,
-            "src": "22278:1174:0",
+            "scope": 2592,
+            "src": "22818:1174:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 2159,
+              "id": 2590,
               "nodeType": "Block",
-              "src": "23506:162:0",
+              "src": "24046:162:6",
               "statements": [
                 {
                   "assignments": [
-                    2134
+                    2565
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2134,
+                      "id": 2565,
                       "mutability": "mutable",
                       "name": "v",
-                      "nameLocation": "23522:1:0",
+                      "nameLocation": "24062:1:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2159,
-                      "src": "23516:7:0",
+                      "scope": 2590,
+                      "src": "24056:7:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -79567,10 +82403,10 @@
                         "typeString": "uint8"
                       },
                       "typeName": {
-                        "id": 2133,
+                        "id": 2564,
                         "name": "uint8",
                         "nodeType": "ElementaryTypeName",
-                        "src": "23516:5:0",
+                        "src": "24056:5:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint8",
                           "typeString": "uint8"
@@ -79579,28 +82415,28 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2138,
+                  "id": 2569,
                   "initialValue": {
                     "baseExpression": {
-                      "id": 2135,
+                      "id": 2566,
                       "name": "nonces",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 74,
-                      "src": "23526:6:0",
+                      "referencedDeclaration": 463,
+                      "src": "24066:6:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_mapping$_t_uint32_$_t_uint8_$",
                         "typeString": "mapping(uint32 => uint8)"
                       }
                     },
-                    "id": 2137,
+                    "id": 2568,
                     "indexExpression": {
-                      "id": 2136,
+                      "id": 2567,
                       "name": "index",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2130,
-                      "src": "23533:5:0",
+                      "referencedDeclaration": 2561,
+                      "src": "24073:5:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -79611,14 +82447,14 @@
                     "isPure": false,
                     "lValueRequested": false,
                     "nodeType": "IndexAccess",
-                    "src": "23526:13:0",
+                    "src": "24066:13:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint8",
                       "typeString": "uint8"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "23516:23:0"
+                  "src": "24056:23:6"
                 },
                 {
                   "condition": {
@@ -79626,18 +82462,18 @@
                       "typeIdentifier": "t_uint8",
                       "typeString": "uint8"
                     },
-                    "id": 2141,
+                    "id": 2572,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 2139,
+                      "id": 2570,
                       "name": "v",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2134,
-                      "src": "23553:1:0",
+                      "referencedDeclaration": 2565,
+                      "src": "24093:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint8",
                         "typeString": "uint8"
@@ -79647,44 +82483,44 @@
                     "operator": "==",
                     "rightExpression": {
                       "hexValue": "30",
-                      "id": 2140,
+                      "id": 2571,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "23558:1:0",
+                      "src": "24098:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
                       },
                       "value": "0"
                     },
-                    "src": "23553:6:0",
+                    "src": "24093:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2149,
+                  "id": 2580,
                   "nodeType": "IfStatement",
-                  "src": "23549:61:0",
+                  "src": "24089:61:6",
                   "trueBody": {
-                    "id": 2148,
+                    "id": 2579,
                     "nodeType": "Block",
-                    "src": "23561:49:0",
+                    "src": "24101:49:6",
                     "statements": [
                       {
                         "expression": {
                           "arguments": [
                             {
-                              "id": 2145,
+                              "id": 2576,
                               "name": "index",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2130,
-                              "src": "23593:5:0",
+                              "referencedDeclaration": 2561,
+                              "src": "24133:5:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -79699,31 +82535,31 @@
                               }
                             ],
                             "expression": {
-                              "id": 2142,
+                              "id": 2573,
                               "name": "nonceTracker",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 77,
-                              "src": "23575:12:0",
+                              "referencedDeclaration": 466,
+                              "src": "24115:12:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint32_$dyn_storage",
                                 "typeString": "uint32[] storage ref"
                               }
                             },
-                            "id": 2144,
+                            "id": 2575,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "push",
                             "nodeType": "MemberAccess",
-                            "src": "23575:17:0",
+                            "src": "24115:17:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_uint32_$dyn_storage_ptr_$_t_uint32_$returns$__$bound_to$_t_array$_t_uint32_$dyn_storage_ptr_$",
                               "typeString": "function (uint32[] storage pointer,uint32)"
                             }
                           },
-                          "id": 2146,
+                          "id": 2577,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -79731,53 +82567,53 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "23575:24:0",
+                          "src": "24115:24:6",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 2147,
+                        "id": 2578,
                         "nodeType": "ExpressionStatement",
-                        "src": "23575:24:0"
+                        "src": "24115:24:6"
                       }
                     ]
                   }
                 },
                 {
-                  "id": 2158,
+                  "id": 2589,
                   "nodeType": "UncheckedBlock",
-                  "src": "23615:47:0",
+                  "src": "24155:47:6",
                   "statements": [
                     {
                       "expression": {
-                        "id": 2156,
+                        "id": 2587,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftHandSide": {
                           "baseExpression": {
-                            "id": 2150,
+                            "id": 2581,
                             "name": "nonces",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 74,
-                            "src": "23634:6:0",
+                            "referencedDeclaration": 463,
+                            "src": "24174:6:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_mapping$_t_uint32_$_t_uint8_$",
                               "typeString": "mapping(uint32 => uint8)"
                             }
                           },
-                          "id": 2152,
+                          "id": 2583,
                           "indexExpression": {
-                            "id": 2151,
+                            "id": 2582,
                             "name": "index",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2130,
-                            "src": "23641:5:0",
+                            "referencedDeclaration": 2561,
+                            "src": "24181:5:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -79788,7 +82624,7 @@
                           "isPure": false,
                           "lValueRequested": true,
                           "nodeType": "IndexAccess",
-                          "src": "23634:13:0",
+                          "src": "24174:13:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
@@ -79801,18 +82637,18 @@
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
                           },
-                          "id": 2155,
+                          "id": 2586,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 2153,
+                            "id": 2584,
                             "name": "v",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2134,
-                            "src": "23650:1:0",
+                            "referencedDeclaration": 2565,
+                            "src": "24190:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint8",
                               "typeString": "uint8"
@@ -79822,60 +82658,60 @@
                           "operator": "+",
                           "rightExpression": {
                             "hexValue": "31",
-                            "id": 2154,
+                            "id": 2585,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "23654:1:0",
+                            "src": "24194:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_1_by_1",
                               "typeString": "int_const 1"
                             },
                             "value": "1"
                           },
-                          "src": "23650:5:0",
+                          "src": "24190:5:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
                           }
                         },
-                        "src": "23634:21:0",
+                        "src": "24174:21:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint8",
                           "typeString": "uint8"
                         }
                       },
-                      "id": 2157,
+                      "id": 2588,
                       "nodeType": "ExpressionStatement",
-                      "src": "23634:21:0"
+                      "src": "24174:21:6"
                     }
                   ]
                 }
               ]
             },
-            "id": 2160,
+            "id": 2591,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_incrementNonce",
-            "nameLocation": "23467:15:0",
+            "nameLocation": "24007:15:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2131,
+              "id": 2562,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2130,
+                  "id": 2561,
                   "mutability": "mutable",
                   "name": "index",
-                  "nameLocation": "23490:5:0",
+                  "nameLocation": "24030:5:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2160,
-                  "src": "23483:12:0",
+                  "scope": 2591,
+                  "src": "24023:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -79883,10 +82719,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 2129,
+                    "id": 2560,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "23483:6:0",
+                    "src": "24023:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -79895,35 +82731,35 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "23482:14:0"
+              "src": "24022:14:6"
             },
             "returnParameters": {
-              "id": 2132,
+              "id": 2563,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "23506:0:0"
+              "src": "24046:0:6"
             },
-            "scope": 2161,
-            "src": "23458:210:0",
+            "scope": 2592,
+            "src": "23998:210:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           }
         ],
-        "scope": 2162,
-        "src": "151:23519:0",
+        "scope": 2593,
+        "src": "151:24059:6",
         "usedErrors": []
       }
     ],
-    "src": "39:23632:0"
+    "src": "39:24172:6"
   },
   "compiler": {
     "name": "solc",
     "version": "0.8.4+commit.c7e474f2.Emscripten.clang"
   },
   "networks": {},
-  "schemaVersion": "3.4.1",
-  "updatedAt": "2021-07-27T11:00:31.606Z",
+  "schemaVersion": "3.4.2",
+  "updatedAt": "2021-08-05T09:45:29.841Z",
   "devdoc": {
     "kind": "dev",
     "methods": {
diff --git a/code/build/contracts/TokenTracker.json b/code/build/contracts/TokenTracker.json
index 994988ef..782f6fc9 100644
--- a/code/build/contracts/TokenTracker.json
+++ b/code/build/contracts/TokenTracker.json
@@ -402,9 +402,9 @@
       "type": "function"
     }
   ],
-  "metadata": "{\"compiler\":{\"version\":\"0.8.4+commit.c7e474f2\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"tokenContract\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"ReceivedToken\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenNotFound\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenTracked\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"string\",\"name\":\"reason\",\"type\":\"string\"}],\"name\":\"TokenTransferError\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferFailed\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferSucceeded\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenUntracked\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"getTrackedTokens\",\"outputs\":[{\"internalType\":\"enum TokenTracker.TokenType[]\",\"name\":\"\",\"type\":\"uint8[]\"},{\"internalType\":\"address[]\",\"name\":\"\",\"type\":\"address[]\"},{\"internalType\":\"uint256[]\",\"name\":\"\",\"type\":\"uint256[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"uint256[]\",\"name\":\"ids\",\"type\":\"uint256[]\"},{\"internalType\":\"uint256[]\",\"name\":\"values\",\"type\":\"uint256[]\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"onERC1155BatchReceived\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"id\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"onERC1155Received\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"onERC721Received\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes4\",\"name\":\"interfaceID\",\"type\":\"bytes4\"}],\"name\":\"supportsInterface\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"pure\",\"type\":\"function\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\":{\"details\":\"Handles the receipt of a multiple ERC1155 token types. This function is called at the end of a `safeBatchTransferFrom` after the balances have been updated. To accept the transfer(s), this must return `bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` (i.e. 0xbc197c81, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"ids\":\"An array containing ids of each token being transferred (order and length must match values array)\",\"operator\":\"The address which initiated the batch transfer (i.e. msg.sender)\",\"values\":\"An array containing amounts of each token being transferred (order and length must match ids array)\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` if transfer is allowed\"}},\"onERC1155Received(address,address,uint256,uint256,bytes)\":{\"details\":\"Handles the receipt of a single ERC1155 token type. This function is called at the end of a `safeTransferFrom` after the balance has been updated. To accept the transfer, this must return `bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` (i.e. 0xf23a6e61, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"id\":\"The ID of the token being transferred\",\"operator\":\"The address which initiated the transfer (i.e. msg.sender)\",\"value\":\"The amount of tokens being transferred\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` if transfer is allowed\"}},\"onERC721Received(address,address,uint256,bytes)\":{\"details\":\"Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} by `operator` from `from`, this function is called. It must return its Solidity selector to confirm the token transfer. If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"/Users/polymorpher/git/one-wallet/code/contracts/TokenTracker.sol\":\"TokenTracker\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/Users/polymorpher/git/one-wallet/code/contracts/TokenTracker.sol\":{\"keccak256\":\"0x153e8bd4263b7b071e5c4e9e44f5da2afb16c74207e8a6a071c837721de1747b\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://5550ad4a2929a9216432939182544a355ccfa1fdc04566497d4215d08171d115\",\"dweb:/ipfs/QmRkCR7qmJP6oLqFs7FbAZNgQUV9PNRLweP4Kkv3L81AW7\"]},\"@openzeppelin/contracts/token/ERC1155/IERC1155.sol\":{\"keccak256\":\"0xfce1eb6398eae0e2b50251140866a70a3106193f101972c878bba1dbf44929ec\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://4f0709c3f462b28b400f57db181254ad970967c3b49a8948ef5e05929b106ffe\",\"dweb:/ipfs/QmNe3sRmPKw1T7q7m733tk7tFKpi3jo9PCisDPMbjeg3kJ\"]},\"@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol\":{\"keccak256\":\"0x7de6e64d4a8075e803a972cc77c4c91463e0c3777e4110eacfb5d4a71759b2fa\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://b83b3b09ef36374c1c104ee896797dadf2e81466d2143b481d3f1ddc7d9f3873\",\"dweb:/ipfs/QmSWtqs28RHDezRWBbmEfqiPYwsGTKj44NRbuxvZ96cqMU\"]},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0xf101e8720213560fab41104d53b3cc7ba0456ef3a98455aa7f022391783144a0\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://3e7820bcf567e6892d937c3cb10db263a4042e446799bca602535868d822384e\",\"dweb:/ipfs/QmPG2oeDjKncqsEeyYGjAN7CwAJmMgHterXGGnpzhha4z7\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\":{\"keccak256\":\"0xd9517254724276e2e8de3769183c1f738f445f0095c26fd9b86d3c6687e887b9\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://0e604bcdcd5e5b2fb299ad09769cde6db19d5aa1929d1b5e939234a0f10d7eb8\",\"dweb:/ipfs/Qmd8hXE3GZfBHuWx3RNiYgFW2ci7KvHtib8DiwzJ2dgo9V\"]},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"keccak256\":\"0xa28007762d9da9db878dd421960c8cb9a10471f47ab5c1b3309bfe48e9e79ff4\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://796ab6e88af7bf0e78def0f059310c903af6a312b565344e0ff524a0f26e81c6\",\"dweb:/ipfs/QmcsVgLgzWdor3UnAztUkXKNGcysm1MPneWksF72AvnwBx\"]}},\"version\":1}",
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+  "metadata": "{\"compiler\":{\"version\":\"0.8.4+commit.c7e474f2\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"tokenContract\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"ReceivedToken\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenNotFound\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenTracked\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"string\",\"name\":\"reason\",\"type\":\"string\"}],\"name\":\"TokenTransferError\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferFailed\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferSucceeded\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenUntracked\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"getTrackedTokens\",\"outputs\":[{\"internalType\":\"enum TokenTracker.TokenType[]\",\"name\":\"\",\"type\":\"uint8[]\"},{\"internalType\":\"address[]\",\"name\":\"\",\"type\":\"address[]\"},{\"internalType\":\"uint256[]\",\"name\":\"\",\"type\":\"uint256[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"uint256[]\",\"name\":\"ids\",\"type\":\"uint256[]\"},{\"internalType\":\"uint256[]\",\"name\":\"values\",\"type\":\"uint256[]\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"onERC1155BatchReceived\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"id\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"onERC1155Received\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"onERC721Received\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes4\",\"name\":\"interfaceID\",\"type\":\"bytes4\"}],\"name\":\"supportsInterface\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"pure\",\"type\":\"function\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\":{\"details\":\"Handles the receipt of a multiple ERC1155 token types. This function is called at the end of a `safeBatchTransferFrom` after the balances have been updated. To accept the transfer(s), this must return `bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` (i.e. 0xbc197c81, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"ids\":\"An array containing ids of each token being transferred (order and length must match values array)\",\"operator\":\"The address which initiated the batch transfer (i.e. msg.sender)\",\"values\":\"An array containing amounts of each token being transferred (order and length must match ids array)\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` if transfer is allowed\"}},\"onERC1155Received(address,address,uint256,uint256,bytes)\":{\"details\":\"Handles the receipt of a single ERC1155 token type. This function is called at the end of a `safeTransferFrom` after the balance has been updated. To accept the transfer, this must return `bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` (i.e. 0xf23a6e61, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"id\":\"The ID of the token being transferred\",\"operator\":\"The address which initiated the transfer (i.e. msg.sender)\",\"value\":\"The amount of tokens being transferred\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` if transfer is allowed\"}},\"onERC721Received(address,address,uint256,bytes)\":{\"details\":\"Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} by `operator` from `from`, this function is called. It must return its Solidity selector to confirm the token transfer. If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"project:/contracts/TokenTracker.sol\":\"TokenTracker\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/token/ERC1155/IERC1155.sol\":{\"keccak256\":\"0xfce1eb6398eae0e2b50251140866a70a3106193f101972c878bba1dbf44929ec\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://4f0709c3f462b28b400f57db181254ad970967c3b49a8948ef5e05929b106ffe\",\"dweb:/ipfs/QmNe3sRmPKw1T7q7m733tk7tFKpi3jo9PCisDPMbjeg3kJ\"]},\"@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol\":{\"keccak256\":\"0x7de6e64d4a8075e803a972cc77c4c91463e0c3777e4110eacfb5d4a71759b2fa\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://b83b3b09ef36374c1c104ee896797dadf2e81466d2143b481d3f1ddc7d9f3873\",\"dweb:/ipfs/QmSWtqs28RHDezRWBbmEfqiPYwsGTKj44NRbuxvZ96cqMU\"]},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0xf101e8720213560fab41104d53b3cc7ba0456ef3a98455aa7f022391783144a0\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://3e7820bcf567e6892d937c3cb10db263a4042e446799bca602535868d822384e\",\"dweb:/ipfs/QmPG2oeDjKncqsEeyYGjAN7CwAJmMgHterXGGnpzhha4z7\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\":{\"keccak256\":\"0xd9517254724276e2e8de3769183c1f738f445f0095c26fd9b86d3c6687e887b9\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://0e604bcdcd5e5b2fb299ad09769cde6db19d5aa1929d1b5e939234a0f10d7eb8\",\"dweb:/ipfs/Qmd8hXE3GZfBHuWx3RNiYgFW2ci7KvHtib8DiwzJ2dgo9V\"]},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"keccak256\":\"0xa28007762d9da9db878dd421960c8cb9a10471f47ab5c1b3309bfe48e9e79ff4\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://796ab6e88af7bf0e78def0f059310c903af6a312b565344e0ff524a0f26e81c6\",\"dweb:/ipfs/QmcsVgLgzWdor3UnAztUkXKNGcysm1MPneWksF72AvnwBx\"]},\"project:/contracts/TokenTracker.sol\":{\"keccak256\":\"0x153e8bd4263b7b071e5c4e9e44f5da2afb16c74207e8a6a071c837721de1747b\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://5550ad4a2929a9216432939182544a355ccfa1fdc04566497d4215d08171d115\",\"dweb:/ipfs/QmRkCR7qmJP6oLqFs7FbAZNgQUV9PNRLweP4Kkv3L81AW7\"]}},\"version\":1}",
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   "deployedGeneratedSources": [
@@ -5755,7 +5755,7 @@
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+            "name": "abi_encode_tuple_t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__to_t_array$_t_uint8_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__fromStack_reversed",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
@@ -6241,7 +6241,7 @@
                 }
               ]
             },
-            "name": "abi_encode_tuple_t_enum$_TokenType_$2138_t_address_t_uint256__to_t_uint8_t_address_t_uint256__fromStack_reversed",
+            "name": "abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256__to_t_uint8_t_address_t_uint256__fromStack_reversed",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
@@ -6729,7 +6729,7 @@
                 }
               ]
             },
-            "name": "abi_encode_tuple_t_enum$_TokenType_$2138_t_rational_1_by_1_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed",
+            "name": "abi_encode_tuple_t_enum$_TokenType_$2607_t_rational_1_by_1_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
@@ -7247,7 +7247,7 @@
                 }
               ]
             },
-            "name": "abi_encode_tuple_t_enum$_TokenType_$2138_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed",
+            "name": "abi_encode_tuple_t_enum$_TokenType_$2607_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
@@ -7688,44 +7688,44 @@
           }
         ]
       },
-      "contents": "{\n    { }\n    function abi_decode_address(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(eq(value, and(value, sub(shl(160, 1), 1)))) { revert(0, 0) }\n    }\n    function abi_decode_array_uint256_dyn_calldata(offset, end) -> arrayPos, length\n    {\n        if iszero(slt(add(offset, 0x1f), end)) { revert(arrayPos, arrayPos) }\n        length := calldataload(offset)\n        if gt(length, 0xffffffffffffffff) { revert(arrayPos, arrayPos) }\n        arrayPos := add(offset, 0x20)\n        if gt(add(add(offset, shl(5, length)), 0x20), end) { revert(0, 0) }\n    }\n    function abi_decode_bytes_calldata(offset, end) -> arrayPos, length\n    {\n        if iszero(slt(add(offset, 0x1f), end)) { revert(arrayPos, arrayPos) }\n        length := calldataload(offset)\n        if gt(length, 0xffffffffffffffff) { revert(arrayPos, arrayPos) }\n        arrayPos := add(offset, 0x20)\n        if gt(add(add(offset, length), 0x20), end) { revert(0, 0) }\n    }\n    function abi_decode_tuple_t_addresst_addresst_array$_t_uint256_$dyn_calldata_ptrt_array$_t_uint256_$dyn_calldata_ptrt_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5, value6, value7\n    {\n        if slt(sub(dataEnd, headStart), 160) { revert(value4, value4) }\n        value0 := abi_decode_address(headStart)\n        value1 := abi_decode_address(add(headStart, 32))\n        let offset := calldataload(add(headStart, 64))\n        let _1 := 0xffffffffffffffff\n        if gt(offset, _1) { revert(value4, value4) }\n        let value2_1, value3_1 := abi_decode_array_uint256_dyn_calldata(add(headStart, offset), dataEnd)\n        value2 := value2_1\n        value3 := value3_1\n        let offset_1 := calldataload(add(headStart, 96))\n        if gt(offset_1, _1) { revert(value4, value4) }\n        let value4_1, value5_1 := abi_decode_array_uint256_dyn_calldata(add(headStart, offset_1), dataEnd)\n        value4 := value4_1\n        value5 := value5_1\n        let offset_2 := calldataload(add(headStart, 128))\n        if gt(offset_2, _1) { revert(value6, value6) }\n        let value6_1, value7_1 := abi_decode_bytes_calldata(add(headStart, offset_2), dataEnd)\n        value6 := value6_1\n        value7 := value7_1\n    }\n    function abi_decode_tuple_t_addresst_addresst_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4\n    {\n        if slt(sub(dataEnd, headStart), 128) { revert(value4, value4) }\n        value0 := abi_decode_address(headStart)\n        value1 := abi_decode_address(add(headStart, 32))\n        value2 := calldataload(add(headStart, 64))\n        let offset := calldataload(add(headStart, 96))\n        if gt(offset, 0xffffffffffffffff) { revert(value4, value4) }\n        let value3_1, value4_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n        value3 := value3_1\n        value4 := value4_1\n    }\n    function abi_decode_tuple_t_addresst_addresst_uint256t_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5\n    {\n        if slt(sub(dataEnd, headStart), 160) { revert(value4, value4) }\n        value0 := abi_decode_address(headStart)\n        value1 := abi_decode_address(add(headStart, 32))\n        value2 := calldataload(add(headStart, 64))\n        value3 := calldataload(add(headStart, 96))\n        let offset := calldataload(add(headStart, 128))\n        if gt(offset, 0xffffffffffffffff) { revert(value4, value4) }\n        let value4_1, value5_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n        value4 := value4_1\n        value5 := value5_1\n    }\n    function abi_decode_tuple_t_bytes4(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := calldataload(headStart)\n        validator_revert_bytes4(value)\n        value0 := value\n    }\n    function abi_decode_tuple_t_bytes4_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := mload(headStart)\n        validator_revert_bytes4(value)\n        value0 := value\n    }\n    function abi_encode_array_uint256_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, mload(srcPtr))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_bytes_calldata(start, length, pos) -> end\n    {\n        mstore(pos, length)\n        calldatacopy(add(pos, 0x20), start, length)\n        mstore(add(add(pos, length), 0x20), end)\n        end := add(add(pos, and(add(length, 31), not(31))), 0x20)\n    }\n    function abi_encode_enum_TokenType(value, pos)\n    {\n        if iszero(lt(value, 4))\n        {\n            mstore(0, shl(224, 0x4e487b71))\n            mstore(4, 0x21)\n            revert(0, 0x24)\n        }\n        mstore(pos, value)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32_t_bytes32__to_t_bytes32_t_bytes32_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value2, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        mstore(add(pos, 64), value2)\n        end := add(pos, 96)\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_uint256_t_bytes_calldata_ptr__to_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), value3)\n        mstore(add(headStart, 128), 160)\n        tail := abi_encode_bytes_calldata(value4, value5, add(headStart, 160))\n    }\n    function abi_encode_tuple_t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__to_t_array$_t_uint8_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        let tail_1 := add(headStart, 96)\n        mstore(headStart, 96)\n        let pos := tail_1\n        let length := mload(value0)\n        mstore(tail_1, length)\n        pos := add(headStart, 128)\n        let _1 := 0x20\n        let srcPtr := add(value0, _1)\n        let i := tail\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            abi_encode_enum_TokenType(mload(srcPtr), pos)\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        mstore(add(headStart, _1), sub(pos, headStart))\n        let pos_1 := pos\n        let length_1 := mload(value1)\n        mstore(pos, length_1)\n        pos_1 := add(pos, _1)\n        let srcPtr_1 := add(value1, _1)\n        let i_1 := tail\n        for { } lt(i_1, length_1) { i_1 := add(i_1, 1) }\n        {\n            mstore(pos_1, and(mload(srcPtr_1), sub(shl(160, 1), 1)))\n            pos_1 := add(pos_1, _1)\n            srcPtr_1 := add(srcPtr_1, _1)\n        }\n        mstore(add(headStart, 64), sub(pos_1, headStart))\n        tail := abi_encode_array_uint256_dyn(value2, pos_1)\n    }\n    function abi_encode_tuple_t_bool__to_t_bool__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, iszero(iszero(value0)))\n    }\n    function abi_encode_tuple_t_bytes4__to_t_bytes4__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, shl(224, 0xffffffff)))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2138_t_address_t_uint256__to_t_uint8_t_address_t_uint256__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 96)\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 64), value2)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2138_t_rational_1_by_1_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), value1)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 64), and(value2, _1))\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), value5)\n        mstore(add(headStart, 192), 224)\n        tail := abi_encode_bytes_calldata(value6, value7, add(headStart, 224))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2138_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), value1)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 64), and(value2, _1))\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), value5)\n        mstore(add(headStart, 192), 224)\n        tail := abi_encode_bytes_calldata(value6, value7, add(headStart, 224))\n    }\n    function increment_t_uint32(value) -> ret\n    {\n        let _1 := 0xffffffff\n        let value_1 := and(value, _1)\n        if eq(value_1, _1)\n        {\n            mstore(ret, shl(224, 0x4e487b71))\n            mstore(4, 0x11)\n            revert(ret, 0x24)\n        }\n        ret := add(value_1, 1)\n    }\n    function validator_revert_bytes4(value)\n    {\n        if iszero(eq(value, and(value, shl(224, 0xffffffff)))) { revert(0, 0) }\n    }\n}",
+      "contents": "{\n    { }\n    function abi_decode_address(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(eq(value, and(value, sub(shl(160, 1), 1)))) { revert(0, 0) }\n    }\n    function abi_decode_array_uint256_dyn_calldata(offset, end) -> arrayPos, length\n    {\n        if iszero(slt(add(offset, 0x1f), end)) { revert(arrayPos, arrayPos) }\n        length := calldataload(offset)\n        if gt(length, 0xffffffffffffffff) { revert(arrayPos, arrayPos) }\n        arrayPos := add(offset, 0x20)\n        if gt(add(add(offset, shl(5, length)), 0x20), end) { revert(0, 0) }\n    }\n    function abi_decode_bytes_calldata(offset, end) -> arrayPos, length\n    {\n        if iszero(slt(add(offset, 0x1f), end)) { revert(arrayPos, arrayPos) }\n        length := calldataload(offset)\n        if gt(length, 0xffffffffffffffff) { revert(arrayPos, arrayPos) }\n        arrayPos := add(offset, 0x20)\n        if gt(add(add(offset, length), 0x20), end) { revert(0, 0) }\n    }\n    function abi_decode_tuple_t_addresst_addresst_array$_t_uint256_$dyn_calldata_ptrt_array$_t_uint256_$dyn_calldata_ptrt_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5, value6, value7\n    {\n        if slt(sub(dataEnd, headStart), 160) { revert(value4, value4) }\n        value0 := abi_decode_address(headStart)\n        value1 := abi_decode_address(add(headStart, 32))\n        let offset := calldataload(add(headStart, 64))\n        let _1 := 0xffffffffffffffff\n        if gt(offset, _1) { revert(value4, value4) }\n        let value2_1, value3_1 := abi_decode_array_uint256_dyn_calldata(add(headStart, offset), dataEnd)\n        value2 := value2_1\n        value3 := value3_1\n        let offset_1 := calldataload(add(headStart, 96))\n        if gt(offset_1, _1) { revert(value4, value4) }\n        let value4_1, value5_1 := abi_decode_array_uint256_dyn_calldata(add(headStart, offset_1), dataEnd)\n        value4 := value4_1\n        value5 := value5_1\n        let offset_2 := calldataload(add(headStart, 128))\n        if gt(offset_2, _1) { revert(value6, value6) }\n        let value6_1, value7_1 := abi_decode_bytes_calldata(add(headStart, offset_2), dataEnd)\n        value6 := value6_1\n        value7 := value7_1\n    }\n    function abi_decode_tuple_t_addresst_addresst_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4\n    {\n        if slt(sub(dataEnd, headStart), 128) { revert(value4, value4) }\n        value0 := abi_decode_address(headStart)\n        value1 := abi_decode_address(add(headStart, 32))\n        value2 := calldataload(add(headStart, 64))\n        let offset := calldataload(add(headStart, 96))\n        if gt(offset, 0xffffffffffffffff) { revert(value4, value4) }\n        let value3_1, value4_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n        value3 := value3_1\n        value4 := value4_1\n    }\n    function abi_decode_tuple_t_addresst_addresst_uint256t_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5\n    {\n        if slt(sub(dataEnd, headStart), 160) { revert(value4, value4) }\n        value0 := abi_decode_address(headStart)\n        value1 := abi_decode_address(add(headStart, 32))\n        value2 := calldataload(add(headStart, 64))\n        value3 := calldataload(add(headStart, 96))\n        let offset := calldataload(add(headStart, 128))\n        if gt(offset, 0xffffffffffffffff) { revert(value4, value4) }\n        let value4_1, value5_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n        value4 := value4_1\n        value5 := value5_1\n    }\n    function abi_decode_tuple_t_bytes4(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := calldataload(headStart)\n        validator_revert_bytes4(value)\n        value0 := value\n    }\n    function abi_decode_tuple_t_bytes4_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := mload(headStart)\n        validator_revert_bytes4(value)\n        value0 := value\n    }\n    function abi_encode_array_uint256_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, mload(srcPtr))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_bytes_calldata(start, length, pos) -> end\n    {\n        mstore(pos, length)\n        calldatacopy(add(pos, 0x20), start, length)\n        mstore(add(add(pos, length), 0x20), end)\n        end := add(add(pos, and(add(length, 31), not(31))), 0x20)\n    }\n    function abi_encode_enum_TokenType(value, pos)\n    {\n        if iszero(lt(value, 4))\n        {\n            mstore(0, shl(224, 0x4e487b71))\n            mstore(4, 0x21)\n            revert(0, 0x24)\n        }\n        mstore(pos, value)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32_t_bytes32__to_t_bytes32_t_bytes32_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value2, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        mstore(add(pos, 64), value2)\n        end := add(pos, 96)\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_uint256_t_bytes_calldata_ptr__to_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), value3)\n        mstore(add(headStart, 128), 160)\n        tail := abi_encode_bytes_calldata(value4, value5, add(headStart, 160))\n    }\n    function abi_encode_tuple_t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__to_t_array$_t_uint8_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        let tail_1 := add(headStart, 96)\n        mstore(headStart, 96)\n        let pos := tail_1\n        let length := mload(value0)\n        mstore(tail_1, length)\n        pos := add(headStart, 128)\n        let _1 := 0x20\n        let srcPtr := add(value0, _1)\n        let i := tail\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            abi_encode_enum_TokenType(mload(srcPtr), pos)\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        mstore(add(headStart, _1), sub(pos, headStart))\n        let pos_1 := pos\n        let length_1 := mload(value1)\n        mstore(pos, length_1)\n        pos_1 := add(pos, _1)\n        let srcPtr_1 := add(value1, _1)\n        let i_1 := tail\n        for { } lt(i_1, length_1) { i_1 := add(i_1, 1) }\n        {\n            mstore(pos_1, and(mload(srcPtr_1), sub(shl(160, 1), 1)))\n            pos_1 := add(pos_1, _1)\n            srcPtr_1 := add(srcPtr_1, _1)\n        }\n        mstore(add(headStart, 64), sub(pos_1, headStart))\n        tail := abi_encode_array_uint256_dyn(value2, pos_1)\n    }\n    function abi_encode_tuple_t_bool__to_t_bool__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, iszero(iszero(value0)))\n    }\n    function abi_encode_tuple_t_bytes4__to_t_bytes4__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, shl(224, 0xffffffff)))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256__to_t_uint8_t_address_t_uint256__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 96)\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 64), value2)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_rational_1_by_1_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), value1)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 64), and(value2, _1))\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), value5)\n        mstore(add(headStart, 192), 224)\n        tail := abi_encode_bytes_calldata(value6, value7, add(headStart, 224))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), value1)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 64), and(value2, _1))\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), value5)\n        mstore(add(headStart, 192), 224)\n        tail := abi_encode_bytes_calldata(value6, value7, add(headStart, 224))\n    }\n    function increment_t_uint32(value) -> ret\n    {\n        let _1 := 0xffffffff\n        let value_1 := and(value, _1)\n        if eq(value_1, _1)\n        {\n            mstore(ret, shl(224, 0x4e487b71))\n            mstore(4, 0x11)\n            revert(ret, 0x24)\n        }\n        ret := add(value_1, 1)\n    }\n    function validator_revert_bytes4(value)\n    {\n        if iszero(eq(value, and(value, shl(224, 0xffffffff)))) { revert(0, 0) }\n    }\n}",
       "id": 8,
       "language": "Yul",
       "name": "#utility.yul"
     }
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   "source": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.4;\n\nimport \"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\";\nimport \"@openzeppelin/contracts/token/ERC721/IERC721.sol\";\nimport \"@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol\";\nimport \"@openzeppelin/contracts/token/ERC1155/IERC1155.sol\";\n\n\ncontract TokenTracker is IERC721Receiver, IERC1155Receiver {\n\n    /// token tracking\n    enum TokenType{\n        ERC20, ERC721, ERC1155, NONE\n    }\n    event ReceivedToken(TokenType tokenType, uint256 amount, address from, address tokenContract, address operator, uint256 tokenId, bytes data);\n    event TokenTracked(TokenType tokenType, address contractAddress, uint256 tokenId);\n    event TokenUntracked(TokenType tokenType, address contractAddress, uint256 tokenId);\n    event TokenNotFound(TokenType tokenType, address contractAddress, uint256 tokenId);\n    event TokenTransferFailed(TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount);\n    event TokenTransferError(TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount, string reason);\n    event TokenTransferSucceeded(TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount);\n\n    // We track tokens in the contract instead of at the client so users can immediately get a record of what tokens they own when they restore their wallet at a new client\n    // The tracking of ERC721 and ERC1155 are automatically established upon a token is transferred to this wallet. The tracking of ERC20 needs to be manually established by the client.\n    // The gas cost of tracking and untracking operations are of constant complexity. The gas cost is paid by the transferer in the case of automatically established tracking, and paid by the user in the case of manual tracking.\n    struct TrackedToken {\n        TokenType tokenType;\n        address contractAddress;\n        uint256 tokenId; // only valid for ERC721 and ERC1155\n    }\n\n    mapping(bytes32 => uint256[]) trackedTokenPositions; // keccak256(bytes.concat(byte32(uint(tokenType)), bytes32(contractAddress), bytes32(tokenId)) => positions in trackedTokens. Positions should be of length 1 except in very rare occasion of collision\n    TrackedToken[] trackedTokens;\n\n    constructor(){}\n\n    function onERC1155Received(\n        address operator,\n        address from,\n        uint256 id,\n        uint256 value,\n        bytes calldata data\n    ) external override returns (bytes4){\n        emit ReceivedToken(TokenType.ERC1155, value, from, msg.sender, operator, id, data);\n        _trackToken(TokenType.ERC1155, msg.sender, id);\n        return this.onERC1155Received.selector;\n    }\n\n    function onERC1155BatchReceived(address operator, address from, uint256[] calldata ids, uint256[] calldata values, bytes calldata data) external override returns (bytes4){\n        for (uint32 i = 0; i < ids.length; i++) {\n            this.onERC1155Received(operator, from, ids[i], values[i], data);\n        }\n        return this.onERC1155BatchReceived.selector;\n    }\n\n    function supportsInterface(bytes4 interfaceID) external override pure returns (bool) {\n        return interfaceID == this.supportsInterface.selector ||\n        interfaceID == this.onERC1155Received.selector ||\n        interfaceID == this.onERC721Received.selector;\n    }\n\n    // identical to ERC1155, except tracked only on ERC721 related data structures\n    function onERC721Received(\n        address operator,\n        address from,\n        uint256 tokenId,\n        bytes calldata data\n    ) external override returns (bytes4){\n        emit ReceivedToken(TokenType.ERC721, 1, from, msg.sender, operator, tokenId, data);\n        _trackToken(TokenType.ERC721, msg.sender, tokenId);\n        return this.onERC721Received.selector;\n    }\n\n    function getTrackedTokens() external view returns (TokenType[] memory, address[] memory, uint256[] memory){\n        TokenType[] memory tokenTypes = new TokenType[](trackedTokens.length);\n        address[] memory contractAddresses = new address[](trackedTokens.length);\n        uint256[] memory tokenIds = new uint256[](trackedTokens.length);\n        for (uint32 i = 0; i < trackedTokens.length; i++) {\n            tokenTypes[i] = trackedTokens[i].tokenType;\n            contractAddresses[i] = trackedTokens[i].contractAddress;\n            tokenIds[i] = trackedTokens[i].tokenId;\n        }\n        return (tokenTypes, contractAddresses, tokenIds);\n    }\n \n\n    function _trackToken(TokenType tokenType, address contractAddress, uint256 tokenId) internal {\n        bytes32 key = keccak256(bytes.concat(bytes32(uint256(tokenType)), bytes32(bytes20(contractAddress)), bytes32(tokenId)));\n        if (trackedTokenPositions[key].length > 0) {\n            for (uint32 i = 0; i < trackedTokenPositions[key].length; i++) {\n                uint256 j = trackedTokenPositions[key][i];\n                if (trackedTokens[j].tokenType != tokenType) continue;\n                if (trackedTokens[j].tokenId != tokenId) continue;\n                if (trackedTokens[j].contractAddress != contractAddress) continue;\n                // we found a token that is already tracked and is identical to the requested token\n                return;\n            }\n        }\n        TrackedToken memory tt = TrackedToken(tokenType, contractAddress, tokenId);\n        trackedTokenPositions[key].push(trackedTokens.length);\n        trackedTokens.push(tt);\n        emit TokenTracked(tokenType, contractAddress, tokenId);\n    }\n\n    function _untrackToken(TokenType tokenType, address contractAddress, uint256 tokenId) internal {\n        bytes32 key = keccak256(bytes.concat(bytes32(uint256(tokenType)), bytes32(bytes20(contractAddress)), bytes32(tokenId)));\n        if (trackedTokenPositions[key].length == 0) {\n            return;\n        }\n        for (uint32 i = 0; i < trackedTokenPositions[key].length; i++) {\n            uint256 j = trackedTokenPositions[key][i];\n            if (trackedTokens[j].tokenType != tokenType) continue;\n            if (trackedTokens[j].tokenId != tokenId) continue;\n            if (trackedTokens[j].contractAddress != contractAddress) continue;\n            // found our token\n            uint256 swappedPosition = trackedTokens.length - 1;\n            trackedTokens[j] = trackedTokens[swappedPosition];\n            bytes32 swappedKey = keccak256(bytes.concat(bytes32(uint256(trackedTokens[j].tokenType)), bytes32(bytes20(trackedTokens[j].contractAddress)), bytes32(trackedTokens[j].tokenId)));\n            trackedTokens.pop();\n            for (uint32 k = 0; k < trackedTokenPositions[swappedKey].length; k++) {\n                if (trackedTokenPositions[swappedKey][k] == swappedPosition) {\n                    trackedTokenPositions[swappedKey][k] = j;\n                }\n            }\n            trackedTokenPositions[key][j] = trackedTokenPositions[key][trackedTokenPositions[key].length - 1];\n            trackedTokenPositions[key].pop();\n            emit TokenUntracked(tokenType, contractAddress, tokenId);\n            return;\n        }\n        emit TokenNotFound(tokenType, contractAddress, tokenId);\n    }\n\n    function _overrideTrack(TrackedToken[] memory newTrackedTokens) internal {\n        for (uint32 i = 0; i < trackedTokens.length; i++) {\n            TokenType tokenType = trackedTokens[i].tokenType;\n            address contractAddress = trackedTokens[i].contractAddress;\n            uint256 tokenId = trackedTokens[i].tokenId;\n            bytes32 key = keccak256(bytes.concat(bytes32(uint256(tokenType)), bytes32(bytes20(contractAddress)), bytes32(tokenId)));\n            delete trackedTokenPositions[key];\n        }\n        delete trackedTokens;\n        for (uint32 i = 0; i < newTrackedTokens.length; i++) {\n            TokenType tokenType = newTrackedTokens[i].tokenType;\n            address contractAddress = newTrackedTokens[i].contractAddress;\n            uint256 tokenId = newTrackedTokens[i].tokenId;\n            bytes32 key = keccak256(bytes.concat(bytes32(uint256(tokenType)), bytes32(bytes20(contractAddress)), bytes32(tokenId)));\n            TrackedToken memory t = TrackedToken(tokenType, contractAddress, tokenId);\n            trackedTokens.push(t);\n            trackedTokenPositions[key].push(i);\n        }\n    }\n\n    function _overrideTrackWithBytes(bytes calldata data) internal {\n        uint32 numTokens = uint32(data.length / 96);\n        require(numTokens * 96 == data.length, \"data must have length multiple to 96\");\n        TrackedToken[] memory newTrackedTokens = new TrackedToken[](numTokens);\n        for (uint32 i = 0; i < numTokens; i++) {\n            TokenType tokenType = TokenType(uint256(_asByte32(data[i * 96 : i * 96 + 32])));\n            address contractAddress = address(bytes20(_asByte32(data[i * 96 + 32 : i * 96 + 52])));\n            uint256 tokenId = uint256(_asByte32(data[i * 96 + 64 : i * 96 + 96]));\n            newTrackedTokens[i] = TrackedToken(tokenType, contractAddress, tokenId);\n        }\n        _overrideTrack(newTrackedTokens);\n    }\n\n    function _multiTrack(bytes calldata data) internal {\n        uint32 numTokens = uint32(data.length / 96);\n        require(numTokens * 96 == data.length, \"data must have length multiple to 96\");\n        for (uint32 i = 0; i < numTokens; i++) {\n            TokenType tokenType = TokenType(uint256(_asByte32(data[i * 96 : i * 96 + 32])));\n            address contractAddress = address(bytes20(_asByte32(data[i * 96 + 32 : i * 96 + 52])));\n            uint256 tokenId = uint256(_asByte32(data[i * 96 + 64 : i * 96 + 96]));\n            _trackToken(tokenType, contractAddress, tokenId);\n        }\n    }\n\n    function _multiUntrack(bytes calldata data) internal {\n        uint32 numTokens = uint32(data.length / 96);\n        require(numTokens * 96 == data.length, \"data must have length multiple to 96\");\n        for (uint32 i = 0; i < numTokens; i++) {\n            TokenType tokenType = TokenType(uint256(_asByte32(data[i * 96 : i * 96 + 32])));\n            address contractAddress = address(bytes20(_asByte32(data[i * 96 + 32 : i * 96 + 52])));\n            uint256 tokenId = uint256(_asByte32(data[i * 96 + 64 : i * 96 + 96]));\n            _untrackToken(tokenType, contractAddress, tokenId);\n        }\n    }\n\n    function _asByte32(bytes memory b) pure internal returns (bytes32){\n        if (b.length == 0) {\n            return bytes32(0x0);\n        }\n        require(b.length <= 32, \"input bytes too long\");\n        bytes32 r;\n        uint8 len = uint8((32 - b.length) * 8);\n        assembly{\n            r := mload(add(b, 32))\n            r := shr(len, r)\n            r := shl(len, r)\n        }\n        return r;\n    }\n}\n",
   "sourcePath": "/Users/polymorpher/git/one-wallet/code/contracts/TokenTracker.sol",
   "ast": {
-    "absolutePath": "/Users/polymorpher/git/one-wallet/code/contracts/TokenTracker.sol",
+    "absolutePath": "project:/contracts/TokenTracker.sol",
     "exportedSymbols": {
       "IERC1155": [
-        3513
+        121
       ],
       "IERC1155Receiver": [
-        3554
+        162
       ],
       "IERC165": [
-        3778
+        386
       ],
       "IERC721": [
-        3748
+        356
       ],
       "IERC721Receiver": [
-        3766
+        374
       ],
       "TokenTracker": [
-        3391
+        3860
       ]
     },
-    "id": 3392,
+    "id": 3861,
     "license": "Apache-2.0",
     "nodeType": "SourceUnit",
     "nodes": [
       {
-        "id": 2125,
+        "id": 2594,
         "literals": [
           "solidity",
           "^",
@@ -7733,53 +7733,53 @@
           ".4"
         ],
         "nodeType": "PragmaDirective",
-        "src": "39:23:1"
+        "src": "39:23:7"
       },
       {
         "absolutePath": "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol",
         "file": "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol",
-        "id": 2126,
+        "id": 2595,
         "nameLocation": "-1:-1:-1",
         "nodeType": "ImportDirective",
-        "scope": 3392,
-        "sourceUnit": 3767,
-        "src": "64:66:1",
+        "scope": 3861,
+        "sourceUnit": 375,
+        "src": "64:66:7",
         "symbolAliases": [],
         "unitAlias": ""
       },
       {
         "absolutePath": "@openzeppelin/contracts/token/ERC721/IERC721.sol",
         "file": "@openzeppelin/contracts/token/ERC721/IERC721.sol",
-        "id": 2127,
+        "id": 2596,
         "nameLocation": "-1:-1:-1",
         "nodeType": "ImportDirective",
-        "scope": 3392,
-        "sourceUnit": 3749,
-        "src": "131:58:1",
+        "scope": 3861,
+        "sourceUnit": 357,
+        "src": "131:58:7",
         "symbolAliases": [],
         "unitAlias": ""
       },
       {
         "absolutePath": "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol",
         "file": "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol",
-        "id": 2128,
+        "id": 2597,
         "nameLocation": "-1:-1:-1",
         "nodeType": "ImportDirective",
-        "scope": 3392,
-        "sourceUnit": 3555,
-        "src": "190:68:1",
+        "scope": 3861,
+        "sourceUnit": 163,
+        "src": "190:68:7",
         "symbolAliases": [],
         "unitAlias": ""
       },
       {
         "absolutePath": "@openzeppelin/contracts/token/ERC1155/IERC1155.sol",
         "file": "@openzeppelin/contracts/token/ERC1155/IERC1155.sol",
-        "id": 2129,
+        "id": 2598,
         "nameLocation": "-1:-1:-1",
         "nodeType": "ImportDirective",
-        "scope": 3392,
-        "sourceUnit": 3514,
-        "src": "259:60:1",
+        "scope": 3861,
+        "sourceUnit": 122,
+        "src": "259:60:7",
         "symbolAliases": [],
         "unitAlias": ""
       },
@@ -7788,121 +7788,121 @@
         "baseContracts": [
           {
             "baseName": {
-              "id": 2130,
+              "id": 2599,
               "name": "IERC721Receiver",
               "nodeType": "IdentifierPath",
-              "referencedDeclaration": 3766,
-              "src": "347:15:1"
+              "referencedDeclaration": 374,
+              "src": "347:15:7"
             },
-            "id": 2131,
+            "id": 2600,
             "nodeType": "InheritanceSpecifier",
-            "src": "347:15:1"
+            "src": "347:15:7"
           },
           {
             "baseName": {
-              "id": 2132,
+              "id": 2601,
               "name": "IERC1155Receiver",
               "nodeType": "IdentifierPath",
-              "referencedDeclaration": 3554,
-              "src": "364:16:1"
+              "referencedDeclaration": 162,
+              "src": "364:16:7"
             },
-            "id": 2133,
+            "id": 2602,
             "nodeType": "InheritanceSpecifier",
-            "src": "364:16:1"
+            "src": "364:16:7"
           }
         ],
         "contractDependencies": [],
         "contractKind": "contract",
         "fullyImplemented": true,
-        "id": 3391,
+        "id": 3860,
         "linearizedBaseContracts": [
-          3391,
-          3554,
-          3778,
-          3766
+          3860,
+          162,
+          386,
+          374
         ],
         "name": "TokenTracker",
-        "nameLocation": "331:12:1",
+        "nameLocation": "331:12:7",
         "nodeType": "ContractDefinition",
         "nodes": [
           {
             "canonicalName": "TokenTracker.TokenType",
-            "id": 2138,
+            "id": 2607,
             "members": [
               {
-                "id": 2134,
+                "id": 2603,
                 "name": "ERC20",
-                "nameLocation": "435:5:1",
+                "nameLocation": "435:5:7",
                 "nodeType": "EnumValue",
-                "src": "435:5:1"
+                "src": "435:5:7"
               },
               {
-                "id": 2135,
+                "id": 2604,
                 "name": "ERC721",
-                "nameLocation": "442:6:1",
+                "nameLocation": "442:6:7",
                 "nodeType": "EnumValue",
-                "src": "442:6:1"
+                "src": "442:6:7"
               },
               {
-                "id": 2136,
+                "id": 2605,
                 "name": "ERC1155",
-                "nameLocation": "450:7:1",
+                "nameLocation": "450:7:7",
                 "nodeType": "EnumValue",
-                "src": "450:7:1"
+                "src": "450:7:7"
               },
               {
-                "id": 2137,
+                "id": 2606,
                 "name": "NONE",
-                "nameLocation": "459:4:1",
+                "nameLocation": "459:4:7",
                 "nodeType": "EnumValue",
-                "src": "459:4:1"
+                "src": "459:4:7"
               }
             ],
             "name": "TokenType",
-            "nameLocation": "416:9:1",
+            "nameLocation": "416:9:7",
             "nodeType": "EnumDefinition",
-            "src": "411:58:1"
+            "src": "411:58:7"
           },
           {
             "anonymous": false,
-            "id": 2155,
+            "id": 2624,
             "name": "ReceivedToken",
-            "nameLocation": "480:13:1",
+            "nameLocation": "480:13:7",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 2154,
+              "id": 2623,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2141,
+                  "id": 2610,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "504:9:1",
+                  "nameLocation": "504:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2155,
-                  "src": "494:19:1",
+                  "scope": 2624,
+                  "src": "494:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2140,
+                    "id": 2609,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2139,
+                      "id": 2608,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "494:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "494:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "494:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "494:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -7910,14 +7910,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2143,
+                  "id": 2612,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "523:6:1",
+                  "nameLocation": "523:6:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2155,
-                  "src": "515:14:1",
+                  "scope": 2624,
+                  "src": "515:14:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -7925,10 +7925,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2142,
+                    "id": 2611,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "515:7:1",
+                    "src": "515:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -7938,14 +7938,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2145,
+                  "id": 2614,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "from",
-                  "nameLocation": "539:4:1",
+                  "nameLocation": "539:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2155,
-                  "src": "531:12:1",
+                  "scope": 2624,
+                  "src": "531:12:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -7953,10 +7953,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2144,
+                    "id": 2613,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "531:7:1",
+                    "src": "531:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -7967,14 +7967,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2147,
+                  "id": 2616,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenContract",
-                  "nameLocation": "553:13:1",
+                  "nameLocation": "553:13:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2155,
-                  "src": "545:21:1",
+                  "scope": 2624,
+                  "src": "545:21:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -7982,10 +7982,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2146,
+                    "id": 2615,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "545:7:1",
+                    "src": "545:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -7996,14 +7996,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2149,
+                  "id": 2618,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "operator",
-                  "nameLocation": "576:8:1",
+                  "nameLocation": "576:8:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2155,
-                  "src": "568:16:1",
+                  "scope": 2624,
+                  "src": "568:16:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8011,10 +8011,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2148,
+                    "id": 2617,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "568:7:1",
+                    "src": "568:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -8025,14 +8025,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2151,
+                  "id": 2620,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "594:7:1",
+                  "nameLocation": "594:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2155,
-                  "src": "586:15:1",
+                  "scope": 2624,
+                  "src": "586:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8040,10 +8040,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2150,
+                    "id": 2619,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "586:7:1",
+                    "src": "586:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -8053,14 +8053,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2153,
+                  "id": 2622,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "data",
-                  "nameLocation": "609:4:1",
+                  "nameLocation": "609:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2155,
-                  "src": "603:10:1",
+                  "scope": 2624,
+                  "src": "603:10:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8068,10 +8068,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 2152,
+                    "id": 2621,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "603:5:1",
+                    "src": "603:5:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -8080,50 +8080,50 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "493:121:1"
+              "src": "493:121:7"
             },
-            "src": "474:141:1"
+            "src": "474:141:7"
           },
           {
             "anonymous": false,
-            "id": 2164,
+            "id": 2633,
             "name": "TokenTracked",
-            "nameLocation": "626:12:1",
+            "nameLocation": "626:12:7",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 2163,
+              "id": 2632,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2158,
+                  "id": 2627,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "649:9:1",
+                  "nameLocation": "649:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2164,
-                  "src": "639:19:1",
+                  "scope": 2633,
+                  "src": "639:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2157,
+                    "id": 2626,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2156,
+                      "id": 2625,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "639:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "639:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "639:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "639:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -8131,14 +8131,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2160,
+                  "id": 2629,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "668:15:1",
+                  "nameLocation": "668:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2164,
-                  "src": "660:23:1",
+                  "scope": 2633,
+                  "src": "660:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8146,10 +8146,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2159,
+                    "id": 2628,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "660:7:1",
+                    "src": "660:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -8160,14 +8160,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2162,
+                  "id": 2631,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "693:7:1",
+                  "nameLocation": "693:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2164,
-                  "src": "685:15:1",
+                  "scope": 2633,
+                  "src": "685:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8175,10 +8175,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2161,
+                    "id": 2630,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "685:7:1",
+                    "src": "685:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -8187,50 +8187,50 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "638:63:1"
+              "src": "638:63:7"
             },
-            "src": "620:82:1"
+            "src": "620:82:7"
           },
           {
             "anonymous": false,
-            "id": 2173,
+            "id": 2642,
             "name": "TokenUntracked",
-            "nameLocation": "713:14:1",
+            "nameLocation": "713:14:7",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 2172,
+              "id": 2641,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2167,
+                  "id": 2636,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "738:9:1",
+                  "nameLocation": "738:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2173,
-                  "src": "728:19:1",
+                  "scope": 2642,
+                  "src": "728:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2166,
+                    "id": 2635,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2165,
+                      "id": 2634,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "728:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "728:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "728:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "728:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -8238,14 +8238,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2169,
+                  "id": 2638,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "757:15:1",
+                  "nameLocation": "757:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2173,
-                  "src": "749:23:1",
+                  "scope": 2642,
+                  "src": "749:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8253,10 +8253,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2168,
+                    "id": 2637,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "749:7:1",
+                    "src": "749:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -8267,14 +8267,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2171,
+                  "id": 2640,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "782:7:1",
+                  "nameLocation": "782:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2173,
-                  "src": "774:15:1",
+                  "scope": 2642,
+                  "src": "774:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8282,10 +8282,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2170,
+                    "id": 2639,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "774:7:1",
+                    "src": "774:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -8294,50 +8294,50 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "727:63:1"
+              "src": "727:63:7"
             },
-            "src": "707:84:1"
+            "src": "707:84:7"
           },
           {
             "anonymous": false,
-            "id": 2182,
+            "id": 2651,
             "name": "TokenNotFound",
-            "nameLocation": "802:13:1",
+            "nameLocation": "802:13:7",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 2181,
+              "id": 2650,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2176,
+                  "id": 2645,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "826:9:1",
+                  "nameLocation": "826:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2182,
-                  "src": "816:19:1",
+                  "scope": 2651,
+                  "src": "816:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2175,
+                    "id": 2644,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2174,
+                      "id": 2643,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "816:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "816:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "816:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "816:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -8345,14 +8345,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2178,
+                  "id": 2647,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "845:15:1",
+                  "nameLocation": "845:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2182,
-                  "src": "837:23:1",
+                  "scope": 2651,
+                  "src": "837:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8360,10 +8360,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2177,
+                    "id": 2646,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "837:7:1",
+                    "src": "837:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -8374,14 +8374,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2180,
+                  "id": 2649,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "870:7:1",
+                  "nameLocation": "870:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2182,
-                  "src": "862:15:1",
+                  "scope": 2651,
+                  "src": "862:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8389,10 +8389,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2179,
+                    "id": 2648,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "862:7:1",
+                    "src": "862:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -8401,50 +8401,50 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "815:63:1"
+              "src": "815:63:7"
             },
-            "src": "796:83:1"
+            "src": "796:83:7"
           },
           {
             "anonymous": false,
-            "id": 2195,
+            "id": 2664,
             "name": "TokenTransferFailed",
-            "nameLocation": "890:19:1",
+            "nameLocation": "890:19:7",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 2194,
+              "id": 2663,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2185,
+                  "id": 2654,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "920:9:1",
+                  "nameLocation": "920:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2195,
-                  "src": "910:19:1",
+                  "scope": 2664,
+                  "src": "910:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2184,
+                    "id": 2653,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2183,
+                      "id": 2652,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "910:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "910:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "910:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "910:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -8452,14 +8452,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2187,
+                  "id": 2656,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "939:15:1",
+                  "nameLocation": "939:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2195,
-                  "src": "931:23:1",
+                  "scope": 2664,
+                  "src": "931:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8467,10 +8467,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2186,
+                    "id": 2655,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "931:7:1",
+                    "src": "931:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -8481,14 +8481,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2189,
+                  "id": 2658,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "964:7:1",
+                  "nameLocation": "964:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2195,
-                  "src": "956:15:1",
+                  "scope": 2664,
+                  "src": "956:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8496,10 +8496,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2188,
+                    "id": 2657,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "956:7:1",
+                    "src": "956:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -8509,14 +8509,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2191,
+                  "id": 2660,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "981:4:1",
+                  "nameLocation": "981:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2195,
-                  "src": "973:12:1",
+                  "scope": 2664,
+                  "src": "973:12:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8524,10 +8524,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2190,
+                    "id": 2659,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "973:7:1",
+                    "src": "973:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -8538,14 +8538,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2193,
+                  "id": 2662,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "995:6:1",
+                  "nameLocation": "995:6:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2195,
-                  "src": "987:14:1",
+                  "scope": 2664,
+                  "src": "987:14:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8553,10 +8553,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2192,
+                    "id": 2661,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "987:7:1",
+                    "src": "987:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -8565,50 +8565,50 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "909:93:1"
+              "src": "909:93:7"
             },
-            "src": "884:119:1"
+            "src": "884:119:7"
           },
           {
             "anonymous": false,
-            "id": 2210,
+            "id": 2679,
             "name": "TokenTransferError",
-            "nameLocation": "1014:18:1",
+            "nameLocation": "1014:18:7",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 2209,
+              "id": 2678,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2198,
+                  "id": 2667,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "1043:9:1",
+                  "nameLocation": "1043:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2210,
-                  "src": "1033:19:1",
+                  "scope": 2679,
+                  "src": "1033:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2197,
+                    "id": 2666,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2196,
+                      "id": 2665,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "1033:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "1033:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "1033:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "1033:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -8616,14 +8616,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2200,
+                  "id": 2669,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "1062:15:1",
+                  "nameLocation": "1062:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2210,
-                  "src": "1054:23:1",
+                  "scope": 2679,
+                  "src": "1054:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8631,10 +8631,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2199,
+                    "id": 2668,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1054:7:1",
+                    "src": "1054:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -8645,14 +8645,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2202,
+                  "id": 2671,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "1087:7:1",
+                  "nameLocation": "1087:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2210,
-                  "src": "1079:15:1",
+                  "scope": 2679,
+                  "src": "1079:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8660,10 +8660,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2201,
+                    "id": 2670,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1079:7:1",
+                    "src": "1079:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -8673,14 +8673,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2204,
+                  "id": 2673,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "1104:4:1",
+                  "nameLocation": "1104:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2210,
-                  "src": "1096:12:1",
+                  "scope": 2679,
+                  "src": "1096:12:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8688,10 +8688,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2203,
+                    "id": 2672,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1096:7:1",
+                    "src": "1096:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -8702,14 +8702,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2206,
+                  "id": 2675,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "1118:6:1",
+                  "nameLocation": "1118:6:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2210,
-                  "src": "1110:14:1",
+                  "scope": 2679,
+                  "src": "1110:14:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8717,10 +8717,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2205,
+                    "id": 2674,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1110:7:1",
+                    "src": "1110:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -8730,14 +8730,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2208,
+                  "id": 2677,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "reason",
-                  "nameLocation": "1133:6:1",
+                  "nameLocation": "1133:6:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2210,
-                  "src": "1126:13:1",
+                  "scope": 2679,
+                  "src": "1126:13:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8745,10 +8745,10 @@
                     "typeString": "string"
                   },
                   "typeName": {
-                    "id": 2207,
+                    "id": 2676,
                     "name": "string",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1126:6:1",
+                    "src": "1126:6:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_string_storage_ptr",
                       "typeString": "string"
@@ -8757,50 +8757,50 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "1032:108:1"
+              "src": "1032:108:7"
             },
-            "src": "1008:133:1"
+            "src": "1008:133:7"
           },
           {
             "anonymous": false,
-            "id": 2223,
+            "id": 2692,
             "name": "TokenTransferSucceeded",
-            "nameLocation": "1152:22:1",
+            "nameLocation": "1152:22:7",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 2222,
+              "id": 2691,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2213,
+                  "id": 2682,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "1185:9:1",
+                  "nameLocation": "1185:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2223,
-                  "src": "1175:19:1",
+                  "scope": 2692,
+                  "src": "1175:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2212,
+                    "id": 2681,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2211,
+                      "id": 2680,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "1175:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "1175:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "1175:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "1175:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -8808,14 +8808,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2215,
+                  "id": 2684,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "1204:15:1",
+                  "nameLocation": "1204:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2223,
-                  "src": "1196:23:1",
+                  "scope": 2692,
+                  "src": "1196:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8823,10 +8823,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2214,
+                    "id": 2683,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1196:7:1",
+                    "src": "1196:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -8837,14 +8837,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2217,
+                  "id": 2686,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "1229:7:1",
+                  "nameLocation": "1229:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2223,
-                  "src": "1221:15:1",
+                  "scope": 2692,
+                  "src": "1221:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8852,10 +8852,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2216,
+                    "id": 2685,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1221:7:1",
+                    "src": "1221:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -8865,14 +8865,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2219,
+                  "id": 2688,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "1246:4:1",
+                  "nameLocation": "1246:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2223,
-                  "src": "1238:12:1",
+                  "scope": 2692,
+                  "src": "1238:12:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8880,10 +8880,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2218,
+                    "id": 2687,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1238:7:1",
+                    "src": "1238:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -8894,14 +8894,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2221,
+                  "id": 2690,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "1260:6:1",
+                  "nameLocation": "1260:6:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2223,
-                  "src": "1252:14:1",
+                  "scope": 2692,
+                  "src": "1252:14:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -8909,10 +8909,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2220,
+                    "id": 2689,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1252:7:1",
+                    "src": "1252:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -8921,43 +8921,43 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "1174:93:1"
+              "src": "1174:93:7"
             },
-            "src": "1146:122:1"
+            "src": "1146:122:7"
           },
           {
             "canonicalName": "TokenTracker.TrackedToken",
-            "id": 2231,
+            "id": 2700,
             "members": [
               {
                 "constant": false,
-                "id": 2226,
+                "id": 2695,
                 "mutability": "mutable",
                 "name": "tokenType",
-                "nameLocation": "1902:9:1",
+                "nameLocation": "1902:9:7",
                 "nodeType": "VariableDeclaration",
-                "scope": 2231,
-                "src": "1892:19:1",
+                "scope": 2700,
+                "src": "1892:19:7",
                 "stateVariable": false,
                 "storageLocation": "default",
                 "typeDescriptions": {
-                  "typeIdentifier": "t_enum$_TokenType_$2138",
+                  "typeIdentifier": "t_enum$_TokenType_$2607",
                   "typeString": "enum TokenTracker.TokenType"
                 },
                 "typeName": {
-                  "id": 2225,
+                  "id": 2694,
                   "nodeType": "UserDefinedTypeName",
                   "pathNode": {
-                    "id": 2224,
+                    "id": 2693,
                     "name": "TokenType",
                     "nodeType": "IdentifierPath",
-                    "referencedDeclaration": 2138,
-                    "src": "1892:9:1"
+                    "referencedDeclaration": 2607,
+                    "src": "1892:9:7"
                   },
-                  "referencedDeclaration": 2138,
-                  "src": "1892:9:1",
+                  "referencedDeclaration": 2607,
+                  "src": "1892:9:7",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   }
                 },
@@ -8965,13 +8965,13 @@
               },
               {
                 "constant": false,
-                "id": 2228,
+                "id": 2697,
                 "mutability": "mutable",
                 "name": "contractAddress",
-                "nameLocation": "1929:15:1",
+                "nameLocation": "1929:15:7",
                 "nodeType": "VariableDeclaration",
-                "scope": 2231,
-                "src": "1921:23:1",
+                "scope": 2700,
+                "src": "1921:23:7",
                 "stateVariable": false,
                 "storageLocation": "default",
                 "typeDescriptions": {
@@ -8979,10 +8979,10 @@
                   "typeString": "address"
                 },
                 "typeName": {
-                  "id": 2227,
+                  "id": 2696,
                   "name": "address",
                   "nodeType": "ElementaryTypeName",
-                  "src": "1921:7:1",
+                  "src": "1921:7:7",
                   "stateMutability": "nonpayable",
                   "typeDescriptions": {
                     "typeIdentifier": "t_address",
@@ -8993,13 +8993,13 @@
               },
               {
                 "constant": false,
-                "id": 2230,
+                "id": 2699,
                 "mutability": "mutable",
                 "name": "tokenId",
-                "nameLocation": "1962:7:1",
+                "nameLocation": "1962:7:7",
                 "nodeType": "VariableDeclaration",
-                "scope": 2231,
-                "src": "1954:15:1",
+                "scope": 2700,
+                "src": "1954:15:7",
                 "stateVariable": false,
                 "storageLocation": "default",
                 "typeDescriptions": {
@@ -9007,10 +9007,10 @@
                   "typeString": "uint256"
                 },
                 "typeName": {
-                  "id": 2229,
+                  "id": 2698,
                   "name": "uint256",
                   "nodeType": "ElementaryTypeName",
-                  "src": "1954:7:1",
+                  "src": "1954:7:7",
                   "typeDescriptions": {
                     "typeIdentifier": "t_uint256",
                     "typeString": "uint256"
@@ -9020,21 +9020,21 @@
               }
             ],
             "name": "TrackedToken",
-            "nameLocation": "1869:12:1",
+            "nameLocation": "1869:12:7",
             "nodeType": "StructDefinition",
-            "scope": 3391,
-            "src": "1862:151:1",
+            "scope": 3860,
+            "src": "1862:151:7",
             "visibility": "public"
           },
           {
             "constant": false,
-            "id": 2236,
+            "id": 2705,
             "mutability": "mutable",
             "name": "trackedTokenPositions",
-            "nameLocation": "2049:21:1",
+            "nameLocation": "2049:21:7",
             "nodeType": "VariableDeclaration",
-            "scope": 3391,
-            "src": "2019:51:1",
+            "scope": 3860,
+            "src": "2019:51:7",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -9042,37 +9042,37 @@
               "typeString": "mapping(bytes32 => uint256[])"
             },
             "typeName": {
-              "id": 2235,
+              "id": 2704,
               "keyType": {
-                "id": 2232,
+                "id": 2701,
                 "name": "bytes32",
                 "nodeType": "ElementaryTypeName",
-                "src": "2027:7:1",
+                "src": "2027:7:7",
                 "typeDescriptions": {
                   "typeIdentifier": "t_bytes32",
                   "typeString": "bytes32"
                 }
               },
               "nodeType": "Mapping",
-              "src": "2019:29:1",
+              "src": "2019:29:7",
               "typeDescriptions": {
                 "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                 "typeString": "mapping(bytes32 => uint256[])"
               },
               "valueType": {
                 "baseType": {
-                  "id": 2233,
+                  "id": 2702,
                   "name": "uint256",
                   "nodeType": "ElementaryTypeName",
-                  "src": "2038:7:1",
+                  "src": "2038:7:7",
                   "typeDescriptions": {
                     "typeIdentifier": "t_uint256",
                     "typeString": "uint256"
                   }
                 },
-                "id": 2234,
+                "id": 2703,
                 "nodeType": "ArrayTypeName",
-                "src": "2038:9:1",
+                "src": "2038:9:7",
                 "typeDescriptions": {
                   "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr",
                   "typeString": "uint256[]"
@@ -9083,42 +9083,42 @@
           },
           {
             "constant": false,
-            "id": 2240,
+            "id": 2709,
             "mutability": "mutable",
             "name": "trackedTokens",
-            "nameLocation": "2291:13:1",
+            "nameLocation": "2291:13:7",
             "nodeType": "VariableDeclaration",
-            "scope": 3391,
-            "src": "2276:28:1",
+            "scope": 3860,
+            "src": "2276:28:7",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
-              "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+              "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
               "typeString": "struct TokenTracker.TrackedToken[]"
             },
             "typeName": {
               "baseType": {
-                "id": 2238,
+                "id": 2707,
                 "nodeType": "UserDefinedTypeName",
                 "pathNode": {
-                  "id": 2237,
+                  "id": 2706,
                   "name": "TrackedToken",
                   "nodeType": "IdentifierPath",
-                  "referencedDeclaration": 2231,
-                  "src": "2276:12:1"
+                  "referencedDeclaration": 2700,
+                  "src": "2276:12:7"
                 },
-                "referencedDeclaration": 2231,
-                "src": "2276:12:1",
+                "referencedDeclaration": 2700,
+                "src": "2276:12:7",
                 "typeDescriptions": {
-                  "typeIdentifier": "t_struct$_TrackedToken_$2231_storage_ptr",
+                  "typeIdentifier": "t_struct$_TrackedToken_$2700_storage_ptr",
                   "typeString": "struct TokenTracker.TrackedToken"
                 }
               },
-              "id": 2239,
+              "id": 2708,
               "nodeType": "ArrayTypeName",
-              "src": "2276:14:1",
+              "src": "2276:14:7",
               "typeDescriptions": {
-                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr",
+                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr",
                 "typeString": "struct TokenTracker.TrackedToken[]"
               }
             },
@@ -9126,12 +9126,12 @@
           },
           {
             "body": {
-              "id": 2243,
+              "id": 2712,
               "nodeType": "Block",
-              "src": "2324:2:1",
+              "src": "2324:2:7",
               "statements": []
             },
-            "id": 2244,
+            "id": 2713,
             "implemented": true,
             "kind": "constructor",
             "modifiers": [],
@@ -9139,81 +9139,81 @@
             "nameLocation": "-1:-1:-1",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2241,
+              "id": 2710,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "2322:2:1"
+              "src": "2322:2:7"
             },
             "returnParameters": {
-              "id": 2242,
+              "id": 2711,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "2324:0:1"
+              "src": "2324:0:7"
             },
-            "scope": 3391,
-            "src": "2311:15:1",
+            "scope": 3860,
+            "src": "2311:15:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "public"
           },
           {
             "baseFunctions": [
-              3535
+              143
             ],
             "body": {
-              "id": 2284,
+              "id": 2753,
               "nodeType": "Block",
-              "src": "2519:203:1",
+              "src": "2519:203:7",
               "statements": [
                 {
                   "eventCall": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2261,
+                          "id": 2730,
                           "name": "TokenType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2138,
-                          "src": "2548:9:1",
+                          "referencedDeclaration": 2607,
+                          "src": "2548:9:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2138_$",
+                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                             "typeString": "type(enum TokenTracker.TokenType)"
                           }
                         },
-                        "id": 2262,
+                        "id": 2731,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "memberName": "ERC1155",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 2136,
-                        "src": "2548:17:1",
+                        "referencedDeclaration": 2605,
+                        "src": "2548:17:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
-                        "id": 2263,
+                        "id": 2732,
                         "name": "value",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2252,
-                        "src": "2567:5:1",
+                        "referencedDeclaration": 2721,
+                        "src": "2567:5:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         }
                       },
                       {
-                        "id": 2264,
+                        "id": 2733,
                         "name": "from",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2248,
-                        "src": "2574:4:1",
+                        "referencedDeclaration": 2717,
+                        "src": "2574:4:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
@@ -9221,61 +9221,61 @@
                       },
                       {
                         "expression": {
-                          "id": 2265,
+                          "id": 2734,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "2580:3:1",
+                          "src": "2580:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_magic_message",
                             "typeString": "msg"
                           }
                         },
-                        "id": 2266,
+                        "id": 2735,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "sender",
                         "nodeType": "MemberAccess",
-                        "src": "2580:10:1",
+                        "src": "2580:10:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2267,
+                        "id": 2736,
                         "name": "operator",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2246,
-                        "src": "2592:8:1",
+                        "referencedDeclaration": 2715,
+                        "src": "2592:8:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2268,
+                        "id": 2737,
                         "name": "id",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2250,
-                        "src": "2602:2:1",
+                        "referencedDeclaration": 2719,
+                        "src": "2602:2:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         }
                       },
                       {
-                        "id": 2269,
+                        "id": 2738,
                         "name": "data",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2254,
-                        "src": "2606:4:1",
+                        "referencedDeclaration": 2723,
+                        "src": "2606:4:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_calldata_ptr",
                           "typeString": "bytes calldata"
@@ -9285,7 +9285,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -9313,18 +9313,18 @@
                           "typeString": "bytes calldata"
                         }
                       ],
-                      "id": 2260,
+                      "id": 2729,
                       "name": "ReceivedToken",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2155,
-                      "src": "2534:13:1",
+                      "referencedDeclaration": 2624,
+                      "src": "2534:13:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2138_$_t_uint256_$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_uint256_$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
                         "typeString": "function (enum TokenTracker.TokenType,uint256,address,address,address,uint256,bytes memory)"
                       }
                     },
-                    "id": 2270,
+                    "id": 2739,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -9332,80 +9332,80 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "2534:77:1",
+                    "src": "2534:77:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2271,
+                  "id": 2740,
                   "nodeType": "EmitStatement",
-                  "src": "2529:82:1"
+                  "src": "2529:82:7"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2273,
+                          "id": 2742,
                           "name": "TokenType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2138,
-                          "src": "2633:9:1",
+                          "referencedDeclaration": 2607,
+                          "src": "2633:9:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2138_$",
+                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                             "typeString": "type(enum TokenTracker.TokenType)"
                           }
                         },
-                        "id": 2274,
+                        "id": 2743,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "memberName": "ERC1155",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 2136,
-                        "src": "2633:17:1",
+                        "referencedDeclaration": 2605,
+                        "src": "2633:17:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
                         "expression": {
-                          "id": 2275,
+                          "id": 2744,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "2652:3:1",
+                          "src": "2652:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_magic_message",
                             "typeString": "msg"
                           }
                         },
-                        "id": 2276,
+                        "id": 2745,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "sender",
                         "nodeType": "MemberAccess",
-                        "src": "2652:10:1",
+                        "src": "2652:10:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2277,
+                        "id": 2746,
                         "name": "id",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2250,
-                        "src": "2664:2:1",
+                        "referencedDeclaration": 2719,
+                        "src": "2664:2:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -9415,7 +9415,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -9427,18 +9427,18 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2272,
+                      "id": 2741,
                       "name": "_trackToken",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2620,
-                      "src": "2621:11:1",
+                      "referencedDeclaration": 3089,
+                      "src": "2621:11:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2138_$_t_address_$_t_uint256_$returns$__$",
+                        "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                         "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                       }
                     },
-                    "id": 2278,
+                    "id": 2747,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -9446,93 +9446,93 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "2621:46:1",
+                    "src": "2621:46:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2279,
+                  "id": 2748,
                   "nodeType": "ExpressionStatement",
-                  "src": "2621:46:1"
+                  "src": "2621:46:7"
                 },
                 {
                   "expression": {
                     "expression": {
                       "expression": {
-                        "id": 2280,
+                        "id": 2749,
                         "name": "this",
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-                        "src": "2684:4:1",
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                         "typeDescriptions": {
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+                          "typeIdentifier": "t_contract$_TokenTracker_$3860",
                           "typeString": "contract TokenTracker"
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             "name": "onERC1155Received",
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@@ -9540,10 +9540,10 @@
                     "typeString": "address"
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@@ -9554,13 +9554,13 @@
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@@ -9568,10 +9568,10 @@
                     "typeString": "address"
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@@ -9582,13 +9582,13 @@
                 },
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@@ -9596,10 +9596,10 @@
                     "typeString": "uint256"
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@@ -9609,13 +9609,13 @@
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@@ -9623,10 +9623,10 @@
                     "typeString": "uint256"
                   },
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@@ -9636,13 +9636,13 @@
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@@ -9650,10 +9650,10 @@
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@@ -9662,21 +9662,21 @@
                   "visibility": "internal"
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@@ -9684,10 +9684,10 @@
                     "typeString": "bytes4"
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@@ -9696,51 +9696,51 @@
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@@ -9748,25 +9748,25 @@
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@@ -9777,7 +9777,7 @@
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@@ -9785,25 +9785,25 @@
                             },
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                                   "typeString": "uint256[] calldata"
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@@ -9814,19 +9814,19 @@
                               "isPure": false,
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@@ -9857,32 +9857,32 @@
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                               "typeDescriptions": {
-                                "typeIdentifier": "t_contract$_TokenTracker_$3391",
+                                "typeIdentifier": "t_contract$_TokenTracker_$3860",
                                 "typeString": "contract TokenTracker"
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@@ -9890,16 +9890,16 @@
                           "lValueRequested": false,
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                           "nodeType": "FunctionCall",
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@@ -9908,18 +9908,18 @@
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@@ -9929,51 +9929,51 @@
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@@ -9981,10 +9981,10 @@
                           "typeString": "uint32"
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+                          "id": 2772,
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@@ -9993,17 +9993,17 @@
                         "visibility": "internal"
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@@ -10011,11 +10011,11 @@
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@@ -10023,14 +10023,14 @@
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@@ -10041,89 +10041,89 @@
                         "typeString": "uint32"
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-                        "src": "3052:4:1",
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                         "typeDescriptions": {
-                          "typeIdentifier": "t_contract$_TokenTracker_$3391",
+                          "typeIdentifier": "t_contract$_TokenTracker_$3860",
                           "typeString": "contract TokenTracker"
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+              "src": "2873:8:7"
             },
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+              "id": 2767,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2287,
+                  "id": 2756,
                   "mutability": "mutable",
                   "name": "operator",
-                  "nameLocation": "2768:8:1",
+                  "nameLocation": "2768:8:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2335,
-                  "src": "2760:16:1",
+                  "scope": 2804,
+                  "src": "2760:16:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -10131,10 +10131,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2286,
+                    "id": 2755,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "2760:7:1",
+                    "src": "2760:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -10145,13 +10145,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2289,
+                  "id": 2758,
                   "mutability": "mutable",
                   "name": "from",
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+                  "nameLocation": "2786:4:7",
                   "nodeType": "VariableDeclaration",
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-                  "src": "2778:12:1",
+                  "scope": 2804,
+                  "src": "2778:12:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -10159,10 +10159,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2288,
+                    "id": 2757,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "2778:7:1",
+                    "src": "2778:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -10173,13 +10173,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2292,
+                  "id": 2761,
                   "mutability": "mutable",
                   "name": "ids",
-                  "nameLocation": "2811:3:1",
+                  "nameLocation": "2811:3:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2335,
-                  "src": "2792:22:1",
+                  "scope": 2804,
+                  "src": "2792:22:7",
                   "stateVariable": false,
                   "storageLocation": "calldata",
                   "typeDescriptions": {
@@ -10188,18 +10188,18 @@
                   },
                   "typeName": {
                     "baseType": {
-                      "id": 2290,
+                      "id": 2759,
                       "name": "uint256",
                       "nodeType": "ElementaryTypeName",
-                      "src": "2792:7:1",
+                      "src": "2792:7:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "id": 2291,
+                    "id": 2760,
                     "nodeType": "ArrayTypeName",
-                    "src": "2792:9:1",
+                    "src": "2792:9:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr",
                       "typeString": "uint256[]"
@@ -10209,13 +10209,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2295,
+                  "id": 2764,
                   "mutability": "mutable",
                   "name": "values",
-                  "nameLocation": "2835:6:1",
+                  "nameLocation": "2835:6:7",
                   "nodeType": "VariableDeclaration",
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-                  "src": "2816:25:1",
+                  "scope": 2804,
+                  "src": "2816:25:7",
                   "stateVariable": false,
                   "storageLocation": "calldata",
                   "typeDescriptions": {
@@ -10224,18 +10224,18 @@
                   },
                   "typeName": {
                     "baseType": {
-                      "id": 2293,
+                      "id": 2762,
                       "name": "uint256",
                       "nodeType": "ElementaryTypeName",
-                      "src": "2816:7:1",
+                      "src": "2816:7:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "id": 2294,
+                    "id": 2763,
                     "nodeType": "ArrayTypeName",
-                    "src": "2816:9:1",
+                    "src": "2816:9:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr",
                       "typeString": "uint256[]"
@@ -10245,13 +10245,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2297,
+                  "id": 2766,
                   "mutability": "mutable",
                   "name": "data",
-                  "nameLocation": "2858:4:1",
+                  "nameLocation": "2858:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2335,
-                  "src": "2843:19:1",
+                  "scope": 2804,
+                  "src": "2843:19:7",
                   "stateVariable": false,
                   "storageLocation": "calldata",
                   "typeDescriptions": {
@@ -10259,10 +10259,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 2296,
+                    "id": 2765,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "2843:5:1",
+                    "src": "2843:5:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -10271,21 +10271,21 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "2759:104:1"
+              "src": "2759:104:7"
             },
             "returnParameters": {
-              "id": 2302,
+              "id": 2771,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
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+                  "id": 2770,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2335,
-                  "src": "2891:6:1",
+                  "scope": 2804,
+                  "src": "2891:6:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -10293,10 +10293,10 @@
                     "typeString": "bytes4"
                   },
                   "typeName": {
-                    "id": 2300,
+                    "id": 2769,
                     "name": "bytes4",
                     "nodeType": "ElementaryTypeName",
-                    "src": "2891:6:1",
+                    "src": "2891:6:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes4",
                       "typeString": "bytes4"
@@ -10305,22 +10305,22 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "2890:8:1"
+              "src": "2890:8:7"
             },
-            "scope": 3391,
-            "src": "2728:367:1",
+            "scope": 3860,
+            "src": "2728:367:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "external"
           },
           {
             "baseFunctions": [
-              3777
+              385
             ],
             "body": {
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+              "id": 2830,
               "nodeType": "Block",
-              "src": "3186:185:1",
+              "src": "3186:185:7",
               "statements": [
                 {
                   "expression": {
@@ -10328,7 +10328,7 @@
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     },
-                    "id": 2359,
+                    "id": 2828,
                     "isConstant": false,
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@@ -10338,7 +10338,7 @@
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
                       },
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+                      "id": 2822,
                       "isConstant": false,
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@@ -10348,18 +10348,18 @@
                           "typeIdentifier": "t_bytes4",
                           "typeString": "bytes4"
                         },
-                        "id": 2347,
+                        "id": 2816,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
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+                          "id": 2812,
                           "name": "interfaceID",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2337,
-                          "src": "3203:11:1",
+                          "referencedDeclaration": 2806,
+                          "src": "3203:11:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes4",
                             "typeString": "bytes4"
@@ -10370,45 +10370,45 @@
                         "rightExpression": {
                           "expression": {
                             "expression": {
-                              "id": 2344,
+                              "id": 2813,
                               "name": "this",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 4294967268,
-                              "src": "3218:4:1",
+                              "src": "3218:4:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_contract$_TokenTracker_$3391",
+                                "typeIdentifier": "t_contract$_TokenTracker_$3860",
                                 "typeString": "contract TokenTracker"
                               }
                             },
-                            "id": 2345,
+                            "id": 2814,
                             "isConstant": false,
                             "isLValue": false,
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                             "lValueRequested": false,
                             "memberName": "supportsInterface",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2362,
-                            "src": "3218:22:1",
+                            "referencedDeclaration": 2831,
+                            "src": "3218:22:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_external_pure$_t_bytes4_$returns$_t_bool_$",
                               "typeString": "function (bytes4) pure external returns (bool)"
                             }
                           },
-                          "id": 2346,
+                          "id": 2815,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "lValueRequested": false,
                           "memberName": "selector",
                           "nodeType": "MemberAccess",
-                          "src": "3218:31:1",
+                          "src": "3218:31:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes4",
                             "typeString": "bytes4"
                           }
                         },
-                        "src": "3203:46:1",
+                        "src": "3203:46:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -10421,18 +10421,18 @@
                           "typeIdentifier": "t_bytes4",
                           "typeString": "bytes4"
                         },
-                        "id": 2352,
+                        "id": 2821,
                         "isConstant": false,
                         "isLValue": false,
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                         "lValueRequested": false,
                         "leftExpression": {
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                           "name": "interfaceID",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2337,
-                          "src": "3261:11:1",
+                          "referencedDeclaration": 2806,
+                          "src": "3261:11:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes4",
                             "typeString": "bytes4"
@@ -10443,51 +10443,51 @@
                         "rightExpression": {
                           "expression": {
                             "expression": {
-                              "id": 2349,
+                              "id": 2818,
                               "name": "this",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 4294967268,
-                              "src": "3276:4:1",
+                              "src": "3276:4:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_contract$_TokenTracker_$3391",
+                                "typeIdentifier": "t_contract$_TokenTracker_$3860",
                                 "typeString": "contract TokenTracker"
                               }
                             },
-                            "id": 2350,
+                            "id": 2819,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "onERC1155Received",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2285,
-                            "src": "3276:22:1",
+                            "referencedDeclaration": 2754,
+                            "src": "3276:22:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$",
                               "typeString": "function (address,address,uint256,uint256,bytes memory) external returns (bytes4)"
                             }
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+                          "id": 2820,
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                           "isPure": true,
                           "lValueRequested": false,
                           "memberName": "selector",
                           "nodeType": "MemberAccess",
-                          "src": "3276:31:1",
+                          "src": "3276:31:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes4",
                             "typeString": "bytes4"
                           }
                         },
-                        "src": "3261:46:1",
+                        "src": "3261:46:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
                         }
                       },
-                      "src": "3203:104:1",
+                      "src": "3203:104:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
@@ -10500,18 +10500,18 @@
                         "typeIdentifier": "t_bytes4",
                         "typeString": "bytes4"
                       },
-                      "id": 2358,
+                      "id": 2827,
                       "isConstant": false,
                       "isLValue": false,
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                       "lValueRequested": false,
                       "leftExpression": {
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+                        "id": 2823,
                         "name": "interfaceID",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2337,
-                        "src": "3319:11:1",
+                        "referencedDeclaration": 2806,
+                        "src": "3319:11:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes4",
                           "typeString": "bytes4"
@@ -10522,90 +10522,90 @@
                       "rightExpression": {
                         "expression": {
                           "expression": {
-                            "id": 2355,
+                            "id": 2824,
                             "name": "this",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 4294967268,
-                            "src": "3334:4:1",
+                            "src": "3334:4:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_contract$_TokenTracker_$3391",
+                              "typeIdentifier": "t_contract$_TokenTracker_$3860",
                               "typeString": "contract TokenTracker"
                             }
                           },
-                          "id": 2356,
+                          "id": 2825,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "onERC721Received",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2401,
-                          "src": "3334:21:1",
+                          "referencedDeclaration": 2870,
+                          "src": "3334:21:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$",
                             "typeString": "function (address,address,uint256,bytes memory) external returns (bytes4)"
                           }
                         },
-                        "id": 2357,
+                        "id": 2826,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "memberName": "selector",
                         "nodeType": "MemberAccess",
-                        "src": "3334:30:1",
+                        "src": "3334:30:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes4",
                           "typeString": "bytes4"
                         }
                       },
-                      "src": "3319:45:1",
+                      "src": "3319:45:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
                       }
                     },
-                    "src": "3203:161:1",
+                    "src": "3203:161:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "functionReturnParameters": 2342,
-                  "id": 2360,
+                  "functionReturnParameters": 2811,
+                  "id": 2829,
                   "nodeType": "Return",
-                  "src": "3196:168:1"
+                  "src": "3196:168:7"
                 }
               ]
             },
             "functionSelector": "01ffc9a7",
-            "id": 2362,
+            "id": 2831,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "supportsInterface",
-            "nameLocation": "3110:17:1",
+            "nameLocation": "3110:17:7",
             "nodeType": "FunctionDefinition",
             "overrides": {
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+              "id": 2808,
               "nodeType": "OverrideSpecifier",
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-              "src": "3157:8:1"
+              "src": "3157:8:7"
             },
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+              "id": 2807,
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               "parameters": [
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+                  "id": 2806,
                   "mutability": "mutable",
                   "name": "interfaceID",
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+                  "nameLocation": "3135:11:7",
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-                  "src": "3128:18:1",
+                  "scope": 2831,
+                  "src": "3128:18:7",
                   "stateVariable": false,
                   "storageLocation": "default",
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@@ -10613,10 +10613,10 @@
                     "typeString": "bytes4"
                   },
                   "typeName": {
-                    "id": 2336,
+                    "id": 2805,
                     "name": "bytes4",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3128:6:1",
+                    "src": "3128:6:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes4",
                       "typeString": "bytes4"
@@ -10625,21 +10625,21 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "3127:20:1"
+              "src": "3127:20:7"
             },
             "returnParameters": {
-              "id": 2342,
+              "id": 2811,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
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+                  "id": 2810,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2362,
-                  "src": "3180:4:1",
+                  "scope": 2831,
+                  "src": "3180:4:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -10647,10 +10647,10 @@
                     "typeString": "bool"
                   },
                   "typeName": {
-                    "id": 2340,
+                    "id": 2809,
                     "name": "bool",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3180:4:1",
+                    "src": "3180:4:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -10659,63 +10659,63 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "3179:6:1"
+              "src": "3179:6:7"
             },
-            "scope": 3391,
-            "src": "3101:270:1",
+            "scope": 3860,
+            "src": "3101:270:7",
             "stateMutability": "pure",
             "virtual": false,
             "visibility": "external"
           },
           {
             "baseFunctions": [
-              3765
+              373
             ],
             "body": {
-              "id": 2400,
+              "id": 2869,
               "nodeType": "Block",
-              "src": "3628:206:1",
+              "src": "3628:206:7",
               "statements": [
                 {
                   "eventCall": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2377,
+                          "id": 2846,
                           "name": "TokenType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2138,
-                          "src": "3657:9:1",
+                          "referencedDeclaration": 2607,
+                          "src": "3657:9:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2138_$",
+                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                             "typeString": "type(enum TokenTracker.TokenType)"
                           }
                         },
-                        "id": 2378,
+                        "id": 2847,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "memberName": "ERC721",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 2135,
-                        "src": "3657:16:1",
+                        "referencedDeclaration": 2604,
+                        "src": "3657:16:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
                         "hexValue": "31",
-                        "id": 2379,
+                        "id": 2848,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "number",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "3675:1:1",
+                        "src": "3675:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_rational_1_by_1",
                           "typeString": "int_const 1"
@@ -10723,12 +10723,12 @@
                         "value": "1"
                       },
                       {
-                        "id": 2380,
+                        "id": 2849,
                         "name": "from",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2366,
-                        "src": "3678:4:1",
+                        "referencedDeclaration": 2835,
+                        "src": "3678:4:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
@@ -10736,61 +10736,61 @@
                       },
                       {
                         "expression": {
-                          "id": 2381,
+                          "id": 2850,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "3684:3:1",
+                          "src": "3684:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_magic_message",
                             "typeString": "msg"
                           }
                         },
-                        "id": 2382,
+                        "id": 2851,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "sender",
                         "nodeType": "MemberAccess",
-                        "src": "3684:10:1",
+                        "src": "3684:10:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2383,
+                        "id": 2852,
                         "name": "operator",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2364,
-                        "src": "3696:8:1",
+                        "referencedDeclaration": 2833,
+                        "src": "3696:8:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2384,
+                        "id": 2853,
                         "name": "tokenId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2368,
-                        "src": "3706:7:1",
+                        "referencedDeclaration": 2837,
+                        "src": "3706:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         }
                       },
                       {
-                        "id": 2385,
+                        "id": 2854,
                         "name": "data",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2370,
-                        "src": "3715:4:1",
+                        "referencedDeclaration": 2839,
+                        "src": "3715:4:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_calldata_ptr",
                           "typeString": "bytes calldata"
@@ -10800,7 +10800,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -10828,18 +10828,18 @@
                           "typeString": "bytes calldata"
                         }
                       ],
-                      "id": 2376,
+                      "id": 2845,
                       "name": "ReceivedToken",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2155,
-                      "src": "3643:13:1",
+                      "referencedDeclaration": 2624,
+                      "src": "3643:13:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2138_$_t_uint256_$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_uint256_$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
                         "typeString": "function (enum TokenTracker.TokenType,uint256,address,address,address,uint256,bytes memory)"
                       }
                     },
-                    "id": 2386,
+                    "id": 2855,
                     "isConstant": false,
                     "isLValue": false,
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@@ -10847,80 +10847,80 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "3643:77:1",
+                    "src": "3643:77:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2387,
+                  "id": 2856,
                   "nodeType": "EmitStatement",
-                  "src": "3638:82:1"
+                  "src": "3638:82:7"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2389,
+                          "id": 2858,
                           "name": "TokenType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2138,
-                          "src": "3742:9:1",
+                          "referencedDeclaration": 2607,
+                          "src": "3742:9:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2138_$",
+                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                             "typeString": "type(enum TokenTracker.TokenType)"
                           }
                         },
-                        "id": 2390,
+                        "id": 2859,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "memberName": "ERC721",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 2135,
-                        "src": "3742:16:1",
+                        "referencedDeclaration": 2604,
+                        "src": "3742:16:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
                         "expression": {
-                          "id": 2391,
+                          "id": 2860,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "3760:3:1",
+                          "src": "3760:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_magic_message",
                             "typeString": "msg"
                           }
                         },
-                        "id": 2392,
+                        "id": 2861,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "sender",
                         "nodeType": "MemberAccess",
-                        "src": "3760:10:1",
+                        "src": "3760:10:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2393,
+                        "id": 2862,
                         "name": "tokenId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2368,
-                        "src": "3772:7:1",
+                        "referencedDeclaration": 2837,
+                        "src": "3772:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -10930,7 +10930,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -10942,18 +10942,18 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2388,
+                      "id": 2857,
                       "name": "_trackToken",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2620,
-                      "src": "3730:11:1",
+                      "referencedDeclaration": 3089,
+                      "src": "3730:11:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2138_$_t_address_$_t_uint256_$returns$__$",
+                        "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                         "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                       }
                     },
-                    "id": 2394,
+                    "id": 2863,
                     "isConstant": false,
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@@ -10961,93 +10961,93 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "3730:50:1",
+                    "src": "3730:50:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2395,
+                  "id": 2864,
                   "nodeType": "ExpressionStatement",
-                  "src": "3730:50:1"
+                  "src": "3730:50:7"
                 },
                 {
                   "expression": {
                     "expression": {
                       "expression": {
-                        "id": 2396,
+                        "id": 2865,
                         "name": "this",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 4294967268,
-                        "src": "3797:4:1",
+                        "src": "3797:4:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_contract$_TokenTracker_$3391",
+                          "typeIdentifier": "t_contract$_TokenTracker_$3860",
                           "typeString": "contract TokenTracker"
                         }
                       },
-                      "id": 2397,
+                      "id": 2866,
                       "isConstant": false,
                       "isLValue": false,
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                       "lValueRequested": false,
                       "memberName": "onERC721Received",
                       "nodeType": "MemberAccess",
-                      "referencedDeclaration": 2401,
-                      "src": "3797:21:1",
+                      "referencedDeclaration": 2870,
+                      "src": "3797:21:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$",
                         "typeString": "function (address,address,uint256,bytes memory) external returns (bytes4)"
                       }
                     },
-                    "id": 2398,
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                     "isConstant": false,
                     "isLValue": false,
                     "isPure": true,
                     "lValueRequested": false,
                     "memberName": "selector",
                     "nodeType": "MemberAccess",
-                    "src": "3797:30:1",
+                    "src": "3797:30:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes4",
                       "typeString": "bytes4"
                     }
                   },
-                  "functionReturnParameters": 2375,
-                  "id": 2399,
+                  "functionReturnParameters": 2844,
+                  "id": 2868,
                   "nodeType": "Return",
-                  "src": "3790:37:1"
+                  "src": "3790:37:7"
                 }
               ]
             },
             "functionSelector": "150b7a02",
-            "id": 2401,
+            "id": 2870,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "onERC721Received",
-            "nameLocation": "3469:16:1",
+            "nameLocation": "3469:16:7",
             "nodeType": "FunctionDefinition",
             "overrides": {
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+              "id": 2841,
               "nodeType": "OverrideSpecifier",
               "overrides": [],
-              "src": "3603:8:1"
+              "src": "3603:8:7"
             },
             "parameters": {
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+              "id": 2840,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
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+                  "id": 2833,
                   "mutability": "mutable",
                   "name": "operator",
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+                  "nameLocation": "3503:8:7",
                   "nodeType": "VariableDeclaration",
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-                  "src": "3495:16:1",
+                  "scope": 2870,
+                  "src": "3495:16:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -11055,10 +11055,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2363,
+                    "id": 2832,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3495:7:1",
+                    "src": "3495:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -11069,13 +11069,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2366,
+                  "id": 2835,
                   "mutability": "mutable",
                   "name": "from",
-                  "nameLocation": "3529:4:1",
+                  "nameLocation": "3529:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2401,
-                  "src": "3521:12:1",
+                  "scope": 2870,
+                  "src": "3521:12:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -11083,10 +11083,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2365,
+                    "id": 2834,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3521:7:1",
+                    "src": "3521:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -11097,13 +11097,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2368,
+                  "id": 2837,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "3551:7:1",
+                  "nameLocation": "3551:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2401,
-                  "src": "3543:15:1",
+                  "scope": 2870,
+                  "src": "3543:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -11111,10 +11111,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2367,
+                    "id": 2836,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3543:7:1",
+                    "src": "3543:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -11124,13 +11124,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2370,
+                  "id": 2839,
                   "mutability": "mutable",
                   "name": "data",
-                  "nameLocation": "3583:4:1",
+                  "nameLocation": "3583:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2401,
-                  "src": "3568:19:1",
+                  "scope": 2870,
+                  "src": "3568:19:7",
                   "stateVariable": false,
                   "storageLocation": "calldata",
                   "typeDescriptions": {
@@ -11138,10 +11138,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 2369,
+                    "id": 2838,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3568:5:1",
+                    "src": "3568:5:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -11150,21 +11150,21 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "3485:108:1"
+              "src": "3485:108:7"
             },
             "returnParameters": {
-              "id": 2375,
+              "id": 2844,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2374,
+                  "id": 2843,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2401,
-                  "src": "3621:6:1",
+                  "scope": 2870,
+                  "src": "3621:6:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -11172,10 +11172,10 @@
                     "typeString": "bytes4"
                   },
                   "typeName": {
-                    "id": 2373,
+                    "id": 2842,
                     "name": "bytes4",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3621:6:1",
+                    "src": "3621:6:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes4",
                       "typeString": "bytes4"
@@ -11184,93 +11184,93 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "3620:8:1"
+              "src": "3620:8:7"
             },
-            "scope": 3391,
-            "src": "3460:374:1",
+            "scope": 3860,
+            "src": "3460:374:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "external"
           },
           {
             "body": {
-              "id": 2496,
+              "id": 2965,
               "nodeType": "Block",
-              "src": "3946:546:1",
+              "src": "3946:546:7",
               "statements": [
                 {
                   "assignments": [
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+                    2887
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2418,
+                      "id": 2887,
                       "mutability": "mutable",
                       "name": "tokenTypes",
-                      "nameLocation": "3975:10:1",
+                      "nameLocation": "3975:10:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2496,
-                      "src": "3956:29:1",
+                      "scope": 2965,
+                      "src": "3956:29:7",
                       "stateVariable": false,
                       "storageLocation": "memory",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr",
+                        "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr",
                         "typeString": "enum TokenTracker.TokenType[]"
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2416,
+                          "id": 2885,
                           "nodeType": "UserDefinedTypeName",
                           "pathNode": {
-                            "id": 2415,
+                            "id": 2884,
                             "name": "TokenType",
                             "nodeType": "IdentifierPath",
-                            "referencedDeclaration": 2138,
-                            "src": "3956:9:1"
+                            "referencedDeclaration": 2607,
+                            "src": "3956:9:7"
                           },
-                          "referencedDeclaration": 2138,
-                          "src": "3956:9:1",
+                          "referencedDeclaration": 2607,
+                          "src": "3956:9:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
-                        "id": 2417,
+                        "id": 2886,
                         "nodeType": "ArrayTypeName",
-                        "src": "3956:11:1",
+                        "src": "3956:11:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_storage_ptr",
+                          "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_storage_ptr",
                           "typeString": "enum TokenTracker.TokenType[]"
                         }
                       },
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2426,
+                  "id": 2895,
                   "initialValue": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2423,
+                          "id": 2892,
                           "name": "trackedTokens",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2240,
-                          "src": "4004:13:1",
+                          "referencedDeclaration": 2709,
+                          "src": "4004:13:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                             "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                           }
                         },
-                        "id": 2424,
+                        "id": 2893,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "length",
                         "nodeType": "MemberAccess",
-                        "src": "4004:20:1",
+                        "src": "4004:20:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -11284,45 +11284,45 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2422,
+                      "id": 2891,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "NewExpression",
-                      "src": "3988:15:1",
+                      "src": "3988:15:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_objectcreation_pure$_t_uint256_$returns$_t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr_$",
+                        "typeIdentifier": "t_function_objectcreation_pure$_t_uint256_$returns$_t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr_$",
                         "typeString": "function (uint256) pure returns (enum TokenTracker.TokenType[] memory)"
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2420,
+                          "id": 2889,
                           "nodeType": "UserDefinedTypeName",
                           "pathNode": {
-                            "id": 2419,
+                            "id": 2888,
                             "name": "TokenType",
                             "nodeType": "IdentifierPath",
-                            "referencedDeclaration": 2138,
-                            "src": "3992:9:1"
+                            "referencedDeclaration": 2607,
+                            "src": "3992:9:7"
                           },
-                          "referencedDeclaration": 2138,
-                          "src": "3992:9:1",
+                          "referencedDeclaration": 2607,
+                          "src": "3992:9:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
-                        "id": 2421,
+                        "id": 2890,
                         "nodeType": "ArrayTypeName",
-                        "src": "3992:11:1",
+                        "src": "3992:11:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_storage_ptr",
+                          "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_storage_ptr",
                           "typeString": "enum TokenTracker.TokenType[]"
                         }
                       }
                     },
-                    "id": 2425,
+                    "id": 2894,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -11330,30 +11330,30 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "3988:37:1",
+                    "src": "3988:37:7",
                     "tryCall": false,
                     "typeDescriptions": {
-                      "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr",
+                      "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr",
                       "typeString": "enum TokenTracker.TokenType[] memory"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "3956:69:1"
+                  "src": "3956:69:7"
                 },
                 {
                   "assignments": [
-                    2431
+                    2900
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2431,
+                      "id": 2900,
                       "mutability": "mutable",
                       "name": "contractAddresses",
-                      "nameLocation": "4052:17:1",
+                      "nameLocation": "4052:17:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2496,
-                      "src": "4035:34:1",
+                      "scope": 2965,
+                      "src": "4035:34:7",
                       "stateVariable": false,
                       "storageLocation": "memory",
                       "typeDescriptions": {
@@ -11362,18 +11362,18 @@
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2429,
+                          "id": 2898,
                           "name": "address",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4035:7:1",
+                          "src": "4035:7:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
                             "typeString": "address"
                           }
                         },
-                        "id": 2430,
+                        "id": 2899,
                         "nodeType": "ArrayTypeName",
-                        "src": "4035:9:1",
+                        "src": "4035:9:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_address_$dyn_storage_ptr",
                           "typeString": "address[]"
@@ -11382,30 +11382,30 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2438,
+                  "id": 2907,
                   "initialValue": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2435,
+                          "id": 2904,
                           "name": "trackedTokens",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2240,
-                          "src": "4086:13:1",
+                          "referencedDeclaration": 2709,
+                          "src": "4086:13:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                             "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                           }
                         },
-                        "id": 2436,
+                        "id": 2905,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "length",
                         "nodeType": "MemberAccess",
-                        "src": "4086:20:1",
+                        "src": "4086:20:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -11419,39 +11419,39 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2434,
+                      "id": 2903,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "NewExpression",
-                      "src": "4072:13:1",
+                      "src": "4072:13:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_objectcreation_pure$_t_uint256_$returns$_t_array$_t_address_$dyn_memory_ptr_$",
                         "typeString": "function (uint256) pure returns (address[] memory)"
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2432,
+                          "id": 2901,
                           "name": "address",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4076:7:1",
+                          "src": "4076:7:7",
                           "stateMutability": "nonpayable",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
                             "typeString": "address"
                           }
                         },
-                        "id": 2433,
+                        "id": 2902,
                         "nodeType": "ArrayTypeName",
-                        "src": "4076:9:1",
+                        "src": "4076:9:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_address_$dyn_storage_ptr",
                           "typeString": "address[]"
                         }
                       }
                     },
-                    "id": 2437,
+                    "id": 2906,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -11459,7 +11459,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "4072:35:1",
+                    "src": "4072:35:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_address_$dyn_memory_ptr",
@@ -11467,22 +11467,22 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "4035:72:1"
+                  "src": "4035:72:7"
                 },
                 {
                   "assignments": [
-                    2443
+                    2912
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2443,
+                      "id": 2912,
                       "mutability": "mutable",
                       "name": "tokenIds",
-                      "nameLocation": "4134:8:1",
+                      "nameLocation": "4134:8:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2496,
-                      "src": "4117:25:1",
+                      "scope": 2965,
+                      "src": "4117:25:7",
                       "stateVariable": false,
                       "storageLocation": "memory",
                       "typeDescriptions": {
@@ -11491,18 +11491,18 @@
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2441,
+                          "id": 2910,
                           "name": "uint256",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4117:7:1",
+                          "src": "4117:7:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
-                        "id": 2442,
+                        "id": 2911,
                         "nodeType": "ArrayTypeName",
-                        "src": "4117:9:1",
+                        "src": "4117:9:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr",
                           "typeString": "uint256[]"
@@ -11511,30 +11511,30 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2450,
+                  "id": 2919,
                   "initialValue": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2447,
+                          "id": 2916,
                           "name": "trackedTokens",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2240,
-                          "src": "4159:13:1",
+                          "referencedDeclaration": 2709,
+                          "src": "4159:13:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                             "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                           }
                         },
-                        "id": 2448,
+                        "id": 2917,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "length",
                         "nodeType": "MemberAccess",
-                        "src": "4159:20:1",
+                        "src": "4159:20:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -11548,38 +11548,38 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2446,
+                      "id": 2915,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "NewExpression",
-                      "src": "4145:13:1",
+                      "src": "4145:13:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_objectcreation_pure$_t_uint256_$returns$_t_array$_t_uint256_$dyn_memory_ptr_$",
                         "typeString": "function (uint256) pure returns (uint256[] memory)"
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2444,
+                          "id": 2913,
                           "name": "uint256",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4149:7:1",
+                          "src": "4149:7:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
-                        "id": 2445,
+                        "id": 2914,
                         "nodeType": "ArrayTypeName",
-                        "src": "4149:9:1",
+                        "src": "4149:9:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr",
                           "typeString": "uint256[]"
                         }
                       }
                     },
-                    "id": 2449,
+                    "id": 2918,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -11587,7 +11587,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "4145:35:1",
+                    "src": "4145:35:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint256_$dyn_memory_ptr",
@@ -11595,42 +11595,42 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "4117:63:1"
+                  "src": "4117:63:7"
                 },
                 {
                   "body": {
-                    "id": 2489,
+                    "id": 2958,
                     "nodeType": "Block",
-                    "src": "4240:188:1",
+                    "src": "4240:188:7",
                     "statements": [
                       {
                         "expression": {
-                          "id": 2469,
+                          "id": 2938,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
                             "baseExpression": {
-                              "id": 2462,
+                              "id": 2931,
                               "name": "tokenTypes",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2418,
-                              "src": "4254:10:1",
+                              "referencedDeclaration": 2887,
+                              "src": "4254:10:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr",
+                                "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr",
                                 "typeString": "enum TokenTracker.TokenType[] memory"
                               }
                             },
-                            "id": 2464,
+                            "id": 2933,
                             "indexExpression": {
-                              "id": 2463,
+                              "id": 2932,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2452,
-                              "src": "4265:1:1",
+                              "referencedDeclaration": 2921,
+                              "src": "4265:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -11641,9 +11641,9 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "4254:13:1",
+                            "src": "4254:13:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             }
                           },
@@ -11652,25 +11652,25 @@
                           "rightHandSide": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2465,
+                                "id": 2934,
                                 "name": "trackedTokens",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2240,
-                                "src": "4270:13:1",
+                                "referencedDeclaration": 2709,
+                                "src": "4270:13:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                   "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                 }
                               },
-                              "id": 2467,
+                              "id": 2936,
                               "indexExpression": {
-                                "id": 2466,
+                                "id": 2935,
                                 "name": "i",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2452,
-                                "src": "4284:1:1",
+                                "referencedDeclaration": 2921,
+                                "src": "4284:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
@@ -11681,64 +11681,64 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "4270:16:1",
+                              "src": "4270:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref"
                               }
                             },
-                            "id": 2468,
+                            "id": 2937,
                             "isConstant": false,
                             "isLValue": true,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "tokenType",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2226,
-                            "src": "4270:26:1",
+                            "referencedDeclaration": 2695,
+                            "src": "4270:26:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             }
                           },
-                          "src": "4254:42:1",
+                          "src": "4254:42:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
-                        "id": 2470,
+                        "id": 2939,
                         "nodeType": "ExpressionStatement",
-                        "src": "4254:42:1"
+                        "src": "4254:42:7"
                       },
                       {
                         "expression": {
-                          "id": 2478,
+                          "id": 2947,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
                             "baseExpression": {
-                              "id": 2471,
+                              "id": 2940,
                               "name": "contractAddresses",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2431,
-                              "src": "4310:17:1",
+                              "referencedDeclaration": 2900,
+                              "src": "4310:17:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_address_$dyn_memory_ptr",
                                 "typeString": "address[] memory"
                               }
                             },
-                            "id": 2473,
+                            "id": 2942,
                             "indexExpression": {
-                              "id": 2472,
+                              "id": 2941,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2452,
-                              "src": "4328:1:1",
+                              "referencedDeclaration": 2921,
+                              "src": "4328:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -11749,7 +11749,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "4310:20:1",
+                            "src": "4310:20:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_address",
                               "typeString": "address"
@@ -11760,25 +11760,25 @@
                           "rightHandSide": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2474,
+                                "id": 2943,
                                 "name": "trackedTokens",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2240,
-                                "src": "4333:13:1",
+                                "referencedDeclaration": 2709,
+                                "src": "4333:13:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                   "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                 }
                               },
-                              "id": 2476,
+                              "id": 2945,
                               "indexExpression": {
-                                "id": 2475,
+                                "id": 2944,
                                 "name": "i",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2452,
-                                "src": "4347:1:1",
+                                "referencedDeclaration": 2921,
+                                "src": "4347:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
@@ -11789,64 +11789,64 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "4333:16:1",
+                              "src": "4333:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref"
                               }
                             },
-                            "id": 2477,
+                            "id": 2946,
                             "isConstant": false,
                             "isLValue": true,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "contractAddress",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2228,
-                            "src": "4333:32:1",
+                            "referencedDeclaration": 2697,
+                            "src": "4333:32:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_address",
                               "typeString": "address"
                             }
                           },
-                          "src": "4310:55:1",
+                          "src": "4310:55:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
                             "typeString": "address"
                           }
                         },
-                        "id": 2479,
+                        "id": 2948,
                         "nodeType": "ExpressionStatement",
-                        "src": "4310:55:1"
+                        "src": "4310:55:7"
                       },
                       {
                         "expression": {
-                          "id": 2487,
+                          "id": 2956,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
                             "baseExpression": {
-                              "id": 2480,
+                              "id": 2949,
                               "name": "tokenIds",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2443,
-                              "src": "4379:8:1",
+                              "referencedDeclaration": 2912,
+                              "src": "4379:8:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_memory_ptr",
                                 "typeString": "uint256[] memory"
                               }
                             },
-                            "id": 2482,
+                            "id": 2951,
                             "indexExpression": {
-                              "id": 2481,
+                              "id": 2950,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2452,
-                              "src": "4388:1:1",
+                              "referencedDeclaration": 2921,
+                              "src": "4388:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -11857,7 +11857,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "4379:11:1",
+                            "src": "4379:11:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -11868,25 +11868,25 @@
                           "rightHandSide": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2483,
+                                "id": 2952,
                                 "name": "trackedTokens",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2240,
-                                "src": "4393:13:1",
+                                "referencedDeclaration": 2709,
+                                "src": "4393:13:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                   "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                 }
                               },
-                              "id": 2485,
+                              "id": 2954,
                               "indexExpression": {
-                                "id": 2484,
+                                "id": 2953,
                                 "name": "i",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2452,
-                                "src": "4407:1:1",
+                                "referencedDeclaration": 2921,
+                                "src": "4407:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
@@ -11897,35 +11897,35 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "4393:16:1",
+                              "src": "4393:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref"
                               }
                             },
-                            "id": 2486,
+                            "id": 2955,
                             "isConstant": false,
                             "isLValue": true,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "tokenId",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2230,
-                            "src": "4393:24:1",
+                            "referencedDeclaration": 2699,
+                            "src": "4393:24:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "4379:38:1",
+                          "src": "4379:38:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
-                        "id": 2488,
+                        "id": 2957,
                         "nodeType": "ExpressionStatement",
-                        "src": "4379:38:1"
+                        "src": "4379:38:7"
                       }
                     ]
                   },
@@ -11934,18 +11934,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2458,
+                    "id": 2927,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 2455,
+                      "id": 2924,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2452,
-                      "src": "4209:1:1",
+                      "referencedDeclaration": 2921,
+                      "src": "4209:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -11955,51 +11955,51 @@
                     "operator": "<",
                     "rightExpression": {
                       "expression": {
-                        "id": 2456,
+                        "id": 2925,
                         "name": "trackedTokens",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2240,
-                        "src": "4213:13:1",
+                        "referencedDeclaration": 2709,
+                        "src": "4213:13:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                           "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                         }
                       },
-                      "id": 2457,
+                      "id": 2926,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "4213:20:1",
+                      "src": "4213:20:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "4209:24:1",
+                    "src": "4209:24:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2490,
+                  "id": 2959,
                   "initializationExpression": {
                     "assignments": [
-                      2452
+                      2921
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 2452,
+                        "id": 2921,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "4202:1:1",
+                        "nameLocation": "4202:1:7",
                         "nodeType": "VariableDeclaration",
-                        "scope": 2490,
-                        "src": "4195:8:1",
+                        "scope": 2959,
+                        "src": "4195:8:7",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -12007,10 +12007,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 2451,
+                          "id": 2920,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4195:6:1",
+                          "src": "4195:6:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -12019,17 +12019,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2454,
+                    "id": 2923,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 2453,
+                      "id": 2922,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "4206:1:1",
+                      "src": "4206:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -12037,11 +12037,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "4195:12:1"
+                    "src": "4195:12:7"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 2460,
+                      "id": 2929,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -12049,14 +12049,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "4235:3:1",
+                      "src": "4235:3:7",
                       "subExpression": {
-                        "id": 2459,
+                        "id": 2928,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2452,
-                        "src": "4235:1:1",
+                        "referencedDeclaration": 2921,
+                        "src": "4235:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -12067,129 +12067,129 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 2461,
+                    "id": 2930,
                     "nodeType": "ExpressionStatement",
-                    "src": "4235:3:1"
+                    "src": "4235:3:7"
                   },
                   "nodeType": "ForStatement",
-                  "src": "4190:238:1"
+                  "src": "4190:238:7"
                 },
                 {
                   "expression": {
                     "components": [
                       {
-                        "id": 2491,
+                        "id": 2960,
                         "name": "tokenTypes",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2418,
-                        "src": "4445:10:1",
+                        "referencedDeclaration": 2887,
+                        "src": "4445:10:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr",
+                          "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr",
                           "typeString": "enum TokenTracker.TokenType[] memory"
                         }
                       },
                       {
-                        "id": 2492,
+                        "id": 2961,
                         "name": "contractAddresses",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2431,
-                        "src": "4457:17:1",
+                        "referencedDeclaration": 2900,
+                        "src": "4457:17:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_address_$dyn_memory_ptr",
                           "typeString": "address[] memory"
                         }
                       },
                       {
-                        "id": 2493,
+                        "id": 2962,
                         "name": "tokenIds",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2443,
-                        "src": "4476:8:1",
+                        "referencedDeclaration": 2912,
+                        "src": "4476:8:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_memory_ptr",
                           "typeString": "uint256[] memory"
                         }
                       }
                     ],
-                    "id": 2494,
+                    "id": 2963,
                     "isConstant": false,
                     "isInlineArray": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "nodeType": "TupleExpression",
-                    "src": "4444:41:1",
+                    "src": "4444:41:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$_t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr_$_t_array$_t_address_$dyn_memory_ptr_$_t_array$_t_uint256_$dyn_memory_ptr_$",
+                      "typeIdentifier": "t_tuple$_t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr_$_t_array$_t_address_$dyn_memory_ptr_$_t_array$_t_uint256_$dyn_memory_ptr_$",
                       "typeString": "tuple(enum TokenTracker.TokenType[] memory,address[] memory,uint256[] memory)"
                     }
                   },
-                  "functionReturnParameters": 2413,
-                  "id": 2495,
+                  "functionReturnParameters": 2882,
+                  "id": 2964,
                   "nodeType": "Return",
-                  "src": "4437:48:1"
+                  "src": "4437:48:7"
                 }
               ]
             },
             "functionSelector": "695def4c",
-            "id": 2497,
+            "id": 2966,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "getTrackedTokens",
-            "nameLocation": "3849:16:1",
+            "nameLocation": "3849:16:7",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2402,
+              "id": 2871,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "3865:2:1"
+              "src": "3865:2:7"
             },
             "returnParameters": {
-              "id": 2413,
+              "id": 2882,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2406,
+                  "id": 2875,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2497,
-                  "src": "3891:18:1",
+                  "scope": 2966,
+                  "src": "3891:18:7",
                   "stateVariable": false,
                   "storageLocation": "memory",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr",
+                    "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr",
                     "typeString": "enum TokenTracker.TokenType[]"
                   },
                   "typeName": {
                     "baseType": {
-                      "id": 2404,
+                      "id": 2873,
                       "nodeType": "UserDefinedTypeName",
                       "pathNode": {
-                        "id": 2403,
+                        "id": 2872,
                         "name": "TokenType",
                         "nodeType": "IdentifierPath",
-                        "referencedDeclaration": 2138,
-                        "src": "3891:9:1"
+                        "referencedDeclaration": 2607,
+                        "src": "3891:9:7"
                       },
-                      "referencedDeclaration": 2138,
-                      "src": "3891:9:1",
+                      "referencedDeclaration": 2607,
+                      "src": "3891:9:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_TokenType_$2138",
+                        "typeIdentifier": "t_enum$_TokenType_$2607",
                         "typeString": "enum TokenTracker.TokenType"
                       }
                     },
-                    "id": 2405,
+                    "id": 2874,
                     "nodeType": "ArrayTypeName",
-                    "src": "3891:11:1",
+                    "src": "3891:11:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_storage_ptr",
+                      "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_storage_ptr",
                       "typeString": "enum TokenTracker.TokenType[]"
                     }
                   },
@@ -12197,13 +12197,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2409,
+                  "id": 2878,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2497,
-                  "src": "3911:16:1",
+                  "scope": 2966,
+                  "src": "3911:16:7",
                   "stateVariable": false,
                   "storageLocation": "memory",
                   "typeDescriptions": {
@@ -12212,19 +12212,19 @@
                   },
                   "typeName": {
                     "baseType": {
-                      "id": 2407,
+                      "id": 2876,
                       "name": "address",
                       "nodeType": "ElementaryTypeName",
-                      "src": "3911:7:1",
+                      "src": "3911:7:7",
                       "stateMutability": "nonpayable",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address",
                         "typeString": "address"
                       }
                     },
-                    "id": 2408,
+                    "id": 2877,
                     "nodeType": "ArrayTypeName",
-                    "src": "3911:9:1",
+                    "src": "3911:9:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_address_$dyn_storage_ptr",
                       "typeString": "address[]"
@@ -12234,13 +12234,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2412,
+                  "id": 2881,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2497,
-                  "src": "3929:16:1",
+                  "scope": 2966,
+                  "src": "3929:16:7",
                   "stateVariable": false,
                   "storageLocation": "memory",
                   "typeDescriptions": {
@@ -12249,18 +12249,18 @@
                   },
                   "typeName": {
                     "baseType": {
-                      "id": 2410,
+                      "id": 2879,
                       "name": "uint256",
                       "nodeType": "ElementaryTypeName",
-                      "src": "3929:7:1",
+                      "src": "3929:7:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "id": 2411,
+                    "id": 2880,
                     "nodeType": "ArrayTypeName",
-                    "src": "3929:9:1",
+                    "src": "3929:9:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr",
                       "typeString": "uint256[]"
@@ -12269,34 +12269,34 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "3890:56:1"
+              "src": "3890:56:7"
             },
-            "scope": 3391,
-            "src": "3840:652:1",
+            "scope": 3860,
+            "src": "3840:652:7",
             "stateMutability": "view",
             "virtual": false,
             "visibility": "external"
           },
           {
             "body": {
-              "id": 2619,
+              "id": 3088,
               "nodeType": "Block",
-              "src": "4593:937:1",
+              "src": "4593:937:7",
               "statements": [
                 {
                   "assignments": [
-                    2508
+                    2977
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2508,
+                      "id": 2977,
                       "mutability": "mutable",
                       "name": "key",
-                      "nameLocation": "4611:3:1",
+                      "nameLocation": "4611:3:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2619,
-                      "src": "4603:11:1",
+                      "scope": 3088,
+                      "src": "4603:11:7",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -12304,10 +12304,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 2507,
+                        "id": 2976,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "4603:7:1",
+                        "src": "4603:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -12316,7 +12316,7 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2533,
+                  "id": 3002,
                   "initialValue": {
                     "arguments": [
                       {
@@ -12326,14 +12326,14 @@
                               {
                                 "arguments": [
                                   {
-                                    "id": 2517,
+                                    "id": 2986,
                                     "name": "tokenType",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2500,
-                                    "src": "4656:9:1",
+                                    "referencedDeclaration": 2969,
+                                    "src": "4656:9:7",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                                      "typeIdentifier": "t_enum$_TokenType_$2607",
                                       "typeString": "enum TokenTracker.TokenType"
                                     }
                                   }
@@ -12341,30 +12341,30 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                                      "typeIdentifier": "t_enum$_TokenType_$2607",
                                       "typeString": "enum TokenTracker.TokenType"
                                     }
                                   ],
-                                  "id": 2516,
+                                  "id": 2985,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "4648:7:1",
+                                  "src": "4648:7:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_uint256_$",
                                     "typeString": "type(uint256)"
                                   },
                                   "typeName": {
-                                    "id": 2515,
+                                    "id": 2984,
                                     "name": "uint256",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "4648:7:1",
+                                    "src": "4648:7:7",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 2518,
+                                "id": 2987,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -12372,7 +12372,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "4648:18:1",
+                                "src": "4648:18:7",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
@@ -12387,26 +12387,26 @@
                                   "typeString": "uint256"
                                 }
                               ],
-                              "id": 2514,
+                              "id": 2983,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "4640:7:1",
+                              "src": "4640:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 2513,
+                                "id": 2982,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "4640:7:1",
+                                "src": "4640:7:7",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 2519,
+                            "id": 2988,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -12414,7 +12414,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "4640:27:1",
+                            "src": "4640:27:7",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -12426,12 +12426,12 @@
                               {
                                 "arguments": [
                                   {
-                                    "id": 2524,
+                                    "id": 2993,
                                     "name": "contractAddress",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2502,
-                                    "src": "4685:15:1",
+                                    "referencedDeclaration": 2971,
+                                    "src": "4685:15:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_address",
                                       "typeString": "address"
@@ -12445,26 +12445,26 @@
                                       "typeString": "address"
                                     }
                                   ],
-                                  "id": 2523,
+                                  "id": 2992,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "4677:7:1",
+                                  "src": "4677:7:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes20_$",
                                     "typeString": "type(bytes20)"
                                   },
                                   "typeName": {
-                                    "id": 2522,
+                                    "id": 2991,
                                     "name": "bytes20",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "4677:7:1",
+                                    "src": "4677:7:7",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 2525,
+                                "id": 2994,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -12472,7 +12472,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "4677:24:1",
+                                "src": "4677:24:7",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes20",
@@ -12487,26 +12487,26 @@
                                   "typeString": "bytes20"
                                 }
                               ],
-                              "id": 2521,
+                              "id": 2990,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "4669:7:1",
+                              "src": "4669:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 2520,
+                                "id": 2989,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "4669:7:1",
+                                "src": "4669:7:7",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 2526,
+                            "id": 2995,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -12514,7 +12514,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "4669:33:1",
+                            "src": "4669:33:7",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -12524,12 +12524,12 @@
                           {
                             "arguments": [
                               {
-                                "id": 2529,
+                                "id": 2998,
                                 "name": "tokenId",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2504,
-                                "src": "4712:7:1",
+                                "referencedDeclaration": 2973,
+                                "src": "4712:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -12543,26 +12543,26 @@
                                   "typeString": "uint256"
                                 }
                               ],
-                              "id": 2528,
+                              "id": 2997,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "4704:7:1",
+                              "src": "4704:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 2527,
+                                "id": 2996,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "4704:7:1",
+                                "src": "4704:7:7",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 2530,
+                            "id": 2999,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -12570,7 +12570,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "4704:16:1",
+                            "src": "4704:16:7",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -12594,39 +12594,39 @@
                             }
                           ],
                           "expression": {
-                            "id": 2511,
+                            "id": 2980,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "4627:5:1",
+                            "src": "4627:5:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                               "typeString": "type(bytes storage pointer)"
                             },
                             "typeName": {
-                              "id": 2510,
+                              "id": 2979,
                               "name": "bytes",
                               "nodeType": "ElementaryTypeName",
-                              "src": "4627:5:1",
+                              "src": "4627:5:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 2512,
+                          "id": 2981,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "concat",
                           "nodeType": "MemberAccess",
-                          "src": "4627:12:1",
+                          "src": "4627:12:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                             "typeString": "function () pure returns (bytes memory)"
                           }
                         },
-                        "id": 2531,
+                        "id": 3000,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -12634,7 +12634,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "4627:94:1",
+                        "src": "4627:94:7",
                         "tryCall": false,
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_memory_ptr",
@@ -12649,18 +12649,18 @@
                           "typeString": "bytes memory"
                         }
                       ],
-                      "id": 2509,
+                      "id": 2978,
                       "name": "keccak256",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 4294967288,
-                      "src": "4617:9:1",
+                      "src": "4617:9:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                         "typeString": "function (bytes memory) pure returns (bytes32)"
                       }
                     },
-                    "id": 2532,
+                    "id": 3001,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -12668,7 +12668,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "4617:105:1",
+                    "src": "4617:105:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
@@ -12676,7 +12676,7 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "4603:119:1"
+                  "src": "4603:119:7"
                 },
                 {
                   "condition": {
@@ -12684,7 +12684,7 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2539,
+                    "id": 3008,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -12692,25 +12692,25 @@
                     "leftExpression": {
                       "expression": {
                         "baseExpression": {
-                          "id": 2534,
+                          "id": 3003,
                           "name": "trackedTokenPositions",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2236,
-                          "src": "4736:21:1",
+                          "referencedDeclaration": 2705,
+                          "src": "4736:21:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                             "typeString": "mapping(bytes32 => uint256[] storage ref)"
                           }
                         },
-                        "id": 2536,
+                        "id": 3005,
                         "indexExpression": {
-                          "id": 2535,
+                          "id": 3004,
                           "name": "key",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2508,
-                          "src": "4758:3:1",
+                          "referencedDeclaration": 2977,
+                          "src": "4758:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
@@ -12721,20 +12721,20 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "4736:26:1",
+                        "src": "4736:26:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                           "typeString": "uint256[] storage ref"
                         }
                       },
-                      "id": 2537,
+                      "id": 3006,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "4736:33:1",
+                      "src": "4736:33:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
@@ -12744,54 +12744,54 @@
                     "operator": ">",
                     "rightExpression": {
                       "hexValue": "30",
-                      "id": 2538,
+                      "id": 3007,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "4772:1:1",
+                      "src": "4772:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
                       },
                       "value": "0"
                     },
-                    "src": "4736:37:1",
+                    "src": "4736:37:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2589,
+                  "id": 3058,
                   "nodeType": "IfStatement",
-                  "src": "4732:549:1",
+                  "src": "4732:549:7",
                   "trueBody": {
-                    "id": 2588,
+                    "id": 3057,
                     "nodeType": "Block",
-                    "src": "4775:506:1",
+                    "src": "4775:506:7",
                     "statements": [
                       {
                         "body": {
-                          "id": 2586,
+                          "id": 3055,
                           "nodeType": "Block",
-                          "src": "4852:419:1",
+                          "src": "4852:419:7",
                           "statements": [
                             {
                               "assignments": [
-                                2554
+                                3023
                               ],
                               "declarations": [
                                 {
                                   "constant": false,
-                                  "id": 2554,
+                                  "id": 3023,
                                   "mutability": "mutable",
                                   "name": "j",
-                                  "nameLocation": "4878:1:1",
+                                  "nameLocation": "4878:1:7",
                                   "nodeType": "VariableDeclaration",
-                                  "scope": 2586,
-                                  "src": "4870:9:1",
+                                  "scope": 3055,
+                                  "src": "4870:9:7",
                                   "stateVariable": false,
                                   "storageLocation": "default",
                                   "typeDescriptions": {
@@ -12799,10 +12799,10 @@
                                     "typeString": "uint256"
                                   },
                                   "typeName": {
-                                    "id": 2553,
+                                    "id": 3022,
                                     "name": "uint256",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "4870:7:1",
+                                    "src": "4870:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint256",
                                       "typeString": "uint256"
@@ -12811,29 +12811,29 @@
                                   "visibility": "internal"
                                 }
                               ],
-                              "id": 2560,
+                              "id": 3029,
                               "initialValue": {
                                 "baseExpression": {
                                   "baseExpression": {
-                                    "id": 2555,
+                                    "id": 3024,
                                     "name": "trackedTokenPositions",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2236,
-                                    "src": "4882:21:1",
+                                    "referencedDeclaration": 2705,
+                                    "src": "4882:21:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                       "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                     }
                                   },
-                                  "id": 2557,
+                                  "id": 3026,
                                   "indexExpression": {
-                                    "id": 2556,
+                                    "id": 3025,
                                     "name": "key",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2508,
-                                    "src": "4904:3:1",
+                                    "referencedDeclaration": 2977,
+                                    "src": "4904:3:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes32",
                                       "typeString": "bytes32"
@@ -12844,20 +12844,20 @@
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "nodeType": "IndexAccess",
-                                  "src": "4882:26:1",
+                                  "src": "4882:26:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                     "typeString": "uint256[] storage ref"
                                   }
                                 },
-                                "id": 2559,
+                                "id": 3028,
                                 "indexExpression": {
-                                  "id": 2558,
+                                  "id": 3027,
                                   "name": "i",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2541,
-                                  "src": "4909:1:1",
+                                  "referencedDeclaration": 3010,
+                                  "src": "4909:1:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint32",
                                     "typeString": "uint32"
@@ -12868,22 +12868,22 @@
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "nodeType": "IndexAccess",
-                                "src": "4882:29:1",
+                                "src": "4882:29:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
                                 }
                               },
                               "nodeType": "VariableDeclarationStatement",
-                              "src": "4870:41:1"
+                              "src": "4870:41:7"
                             },
                             {
                               "condition": {
                                 "commonType": {
-                                  "typeIdentifier": "t_enum$_TokenType_$2138",
+                                  "typeIdentifier": "t_enum$_TokenType_$2607",
                                   "typeString": "enum TokenTracker.TokenType"
                                 },
-                                "id": 2566,
+                                "id": 3035,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -12891,25 +12891,25 @@
                                 "leftExpression": {
                                   "expression": {
                                     "baseExpression": {
-                                      "id": 2561,
+                                      "id": 3030,
                                       "name": "trackedTokens",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2240,
-                                      "src": "4933:13:1",
+                                      "referencedDeclaration": 2709,
+                                      "src": "4933:13:7",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                         "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                       }
                                     },
-                                    "id": 2563,
+                                    "id": 3032,
                                     "indexExpression": {
-                                      "id": 2562,
+                                      "id": 3031,
                                       "name": "j",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2554,
-                                      "src": "4947:1:1",
+                                      "referencedDeclaration": 3023,
+                                      "src": "4947:1:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -12920,53 +12920,53 @@
                                     "isPure": false,
                                     "lValueRequested": false,
                                     "nodeType": "IndexAccess",
-                                    "src": "4933:16:1",
+                                    "src": "4933:16:7",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                      "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                       "typeString": "struct TokenTracker.TrackedToken storage ref"
                                     }
                                   },
-                                  "id": 2564,
+                                  "id": 3033,
                                   "isConstant": false,
                                   "isLValue": true,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "memberName": "tokenType",
                                   "nodeType": "MemberAccess",
-                                  "referencedDeclaration": 2226,
-                                  "src": "4933:26:1",
+                                  "referencedDeclaration": 2695,
+                                  "src": "4933:26:7",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                                    "typeIdentifier": "t_enum$_TokenType_$2607",
                                     "typeString": "enum TokenTracker.TokenType"
                                   }
                                 },
                                 "nodeType": "BinaryOperation",
                                 "operator": "!=",
                                 "rightExpression": {
-                                  "id": 2565,
+                                  "id": 3034,
                                   "name": "tokenType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2500,
-                                  "src": "4963:9:1",
+                                  "referencedDeclaration": 2969,
+                                  "src": "4963:9:7",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                                    "typeIdentifier": "t_enum$_TokenType_$2607",
                                     "typeString": "enum TokenTracker.TokenType"
                                   }
                                 },
-                                "src": "4933:39:1",
+                                "src": "4933:39:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bool",
                                   "typeString": "bool"
                                 }
                               },
-                              "id": 2568,
+                              "id": 3037,
                               "nodeType": "IfStatement",
-                              "src": "4929:53:1",
+                              "src": "4929:53:7",
                               "trueBody": {
-                                "id": 2567,
+                                "id": 3036,
                                 "nodeType": "Continue",
-                                "src": "4974:8:1"
+                                "src": "4974:8:7"
                               }
                             },
                             {
@@ -12975,7 +12975,7 @@
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
                                 },
-                                "id": 2574,
+                                "id": 3043,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -12983,25 +12983,25 @@
                                 "leftExpression": {
                                   "expression": {
                                     "baseExpression": {
-                                      "id": 2569,
+                                      "id": 3038,
                                       "name": "trackedTokens",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2240,
-                                      "src": "5004:13:1",
+                                      "referencedDeclaration": 2709,
+                                      "src": "5004:13:7",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                         "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                       }
                                     },
-                                    "id": 2571,
+                                    "id": 3040,
                                     "indexExpression": {
-                                      "id": 2570,
+                                      "id": 3039,
                                       "name": "j",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2554,
-                                      "src": "5018:1:1",
+                                      "referencedDeclaration": 3023,
+                                      "src": "5018:1:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -13012,21 +13012,21 @@
                                     "isPure": false,
                                     "lValueRequested": false,
                                     "nodeType": "IndexAccess",
-                                    "src": "5004:16:1",
+                                    "src": "5004:16:7",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                      "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                       "typeString": "struct TokenTracker.TrackedToken storage ref"
                                     }
                                   },
-                                  "id": 2572,
+                                  "id": 3041,
                                   "isConstant": false,
                                   "isLValue": true,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "memberName": "tokenId",
                                   "nodeType": "MemberAccess",
-                                  "referencedDeclaration": 2230,
-                                  "src": "5004:24:1",
+                                  "referencedDeclaration": 2699,
+                                  "src": "5004:24:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
@@ -13035,30 +13035,30 @@
                                 "nodeType": "BinaryOperation",
                                 "operator": "!=",
                                 "rightExpression": {
-                                  "id": 2573,
+                                  "id": 3042,
                                   "name": "tokenId",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2504,
-                                  "src": "5032:7:1",
+                                  "referencedDeclaration": 2973,
+                                  "src": "5032:7:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
-                                "src": "5004:35:1",
+                                "src": "5004:35:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bool",
                                   "typeString": "bool"
                                 }
                               },
-                              "id": 2576,
+                              "id": 3045,
                               "nodeType": "IfStatement",
-                              "src": "5000:49:1",
+                              "src": "5000:49:7",
                               "trueBody": {
-                                "id": 2575,
+                                "id": 3044,
                                 "nodeType": "Continue",
-                                "src": "5041:8:1"
+                                "src": "5041:8:7"
                               }
                             },
                             {
@@ -13067,7 +13067,7 @@
                                   "typeIdentifier": "t_address",
                                   "typeString": "address"
                                 },
-                                "id": 2582,
+                                "id": 3051,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -13075,25 +13075,25 @@
                                 "leftExpression": {
                                   "expression": {
                                     "baseExpression": {
-                                      "id": 2577,
+                                      "id": 3046,
                                       "name": "trackedTokens",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2240,
-                                      "src": "5071:13:1",
+                                      "referencedDeclaration": 2709,
+                                      "src": "5071:13:7",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                         "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                       }
                                     },
-                                    "id": 2579,
+                                    "id": 3048,
                                     "indexExpression": {
-                                      "id": 2578,
+                                      "id": 3047,
                                       "name": "j",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2554,
-                                      "src": "5085:1:1",
+                                      "referencedDeclaration": 3023,
+                                      "src": "5085:1:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -13104,21 +13104,21 @@
                                     "isPure": false,
                                     "lValueRequested": false,
                                     "nodeType": "IndexAccess",
-                                    "src": "5071:16:1",
+                                    "src": "5071:16:7",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                      "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                       "typeString": "struct TokenTracker.TrackedToken storage ref"
                                     }
                                   },
-                                  "id": 2580,
+                                  "id": 3049,
                                   "isConstant": false,
                                   "isLValue": true,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "memberName": "contractAddress",
                                   "nodeType": "MemberAccess",
-                                  "referencedDeclaration": 2228,
-                                  "src": "5071:32:1",
+                                  "referencedDeclaration": 2697,
+                                  "src": "5071:32:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
@@ -13127,37 +13127,37 @@
                                 "nodeType": "BinaryOperation",
                                 "operator": "!=",
                                 "rightExpression": {
-                                  "id": 2581,
+                                  "id": 3050,
                                   "name": "contractAddress",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2502,
-                                  "src": "5107:15:1",
+                                  "referencedDeclaration": 2971,
+                                  "src": "5107:15:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
                                   }
                                 },
-                                "src": "5071:51:1",
+                                "src": "5071:51:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bool",
                                   "typeString": "bool"
                                 }
                               },
-                              "id": 2584,
+                              "id": 3053,
                               "nodeType": "IfStatement",
-                              "src": "5067:65:1",
+                              "src": "5067:65:7",
                               "trueBody": {
-                                "id": 2583,
+                                "id": 3052,
                                 "nodeType": "Continue",
-                                "src": "5124:8:1"
+                                "src": "5124:8:7"
                               }
                             },
                             {
-                              "functionReturnParameters": 2506,
-                              "id": 2585,
+                              "functionReturnParameters": 2975,
+                              "id": 3054,
                               "nodeType": "Return",
-                              "src": "5250:7:1"
+                              "src": "5250:7:7"
                             }
                           ]
                         },
@@ -13166,18 +13166,18 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
-                          "id": 2549,
+                          "id": 3018,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 2544,
+                            "id": 3013,
                             "name": "i",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2541,
-                            "src": "4808:1:1",
+                            "referencedDeclaration": 3010,
+                            "src": "4808:1:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -13188,25 +13188,25 @@
                           "rightExpression": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2545,
+                                "id": 3014,
                                 "name": "trackedTokenPositions",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2236,
-                                "src": "4812:21:1",
+                                "referencedDeclaration": 2705,
+                                "src": "4812:21:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                   "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                 }
                               },
-                              "id": 2547,
+                              "id": 3016,
                               "indexExpression": {
-                                "id": 2546,
+                                "id": 3015,
                                 "name": "key",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2508,
-                                "src": "4834:3:1",
+                                "referencedDeclaration": 2977,
+                                "src": "4834:3:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -13217,46 +13217,46 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "4812:26:1",
+                              "src": "4812:26:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                 "typeString": "uint256[] storage ref"
                               }
                             },
-                            "id": 2548,
+                            "id": 3017,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "4812:33:1",
+                            "src": "4812:33:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "4808:37:1",
+                          "src": "4808:37:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "id": 2587,
+                        "id": 3056,
                         "initializationExpression": {
                           "assignments": [
-                            2541
+                            3010
                           ],
                           "declarations": [
                             {
                               "constant": false,
-                              "id": 2541,
+                              "id": 3010,
                               "mutability": "mutable",
                               "name": "i",
-                              "nameLocation": "4801:1:1",
+                              "nameLocation": "4801:1:7",
                               "nodeType": "VariableDeclaration",
-                              "scope": 2587,
-                              "src": "4794:8:1",
+                              "scope": 3056,
+                              "src": "4794:8:7",
                               "stateVariable": false,
                               "storageLocation": "default",
                               "typeDescriptions": {
@@ -13264,10 +13264,10 @@
                                 "typeString": "uint32"
                               },
                               "typeName": {
-                                "id": 2540,
+                                "id": 3009,
                                 "name": "uint32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "4794:6:1",
+                                "src": "4794:6:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
@@ -13276,17 +13276,17 @@
                               "visibility": "internal"
                             }
                           ],
-                          "id": 2543,
+                          "id": 3012,
                           "initialValue": {
                             "hexValue": "30",
-                            "id": 2542,
+                            "id": 3011,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "4805:1:1",
+                            "src": "4805:1:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_0_by_1",
                               "typeString": "int_const 0"
@@ -13294,11 +13294,11 @@
                             "value": "0"
                           },
                           "nodeType": "VariableDeclarationStatement",
-                          "src": "4794:12:1"
+                          "src": "4794:12:7"
                         },
                         "loopExpression": {
                           "expression": {
-                            "id": 2551,
+                            "id": 3020,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -13306,14 +13306,14 @@
                             "nodeType": "UnaryOperation",
                             "operator": "++",
                             "prefix": false,
-                            "src": "4847:3:1",
+                            "src": "4847:3:7",
                             "subExpression": {
-                              "id": 2550,
+                              "id": 3019,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2541,
-                              "src": "4847:1:1",
+                              "referencedDeclaration": 3010,
+                              "src": "4847:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -13324,90 +13324,90 @@
                               "typeString": "uint32"
                             }
                           },
-                          "id": 2552,
+                          "id": 3021,
                           "nodeType": "ExpressionStatement",
-                          "src": "4847:3:1"
+                          "src": "4847:3:7"
                         },
                         "nodeType": "ForStatement",
-                        "src": "4789:482:1"
+                        "src": "4789:482:7"
                       }
                     ]
                   }
                 },
                 {
                   "assignments": [
-                    2592
+                    3061
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2592,
+                      "id": 3061,
                       "mutability": "mutable",
                       "name": "tt",
-                      "nameLocation": "5310:2:1",
+                      "nameLocation": "5310:2:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2619,
-                      "src": "5290:22:1",
+                      "scope": 3088,
+                      "src": "5290:22:7",
                       "stateVariable": false,
                       "storageLocation": "memory",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                        "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                         "typeString": "struct TokenTracker.TrackedToken"
                       },
                       "typeName": {
-                        "id": 2591,
+                        "id": 3060,
                         "nodeType": "UserDefinedTypeName",
                         "pathNode": {
-                          "id": 2590,
+                          "id": 3059,
                           "name": "TrackedToken",
                           "nodeType": "IdentifierPath",
-                          "referencedDeclaration": 2231,
-                          "src": "5290:12:1"
+                          "referencedDeclaration": 2700,
+                          "src": "5290:12:7"
                         },
-                        "referencedDeclaration": 2231,
-                        "src": "5290:12:1",
+                        "referencedDeclaration": 2700,
+                        "src": "5290:12:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_TrackedToken_$2231_storage_ptr",
+                          "typeIdentifier": "t_struct$_TrackedToken_$2700_storage_ptr",
                           "typeString": "struct TokenTracker.TrackedToken"
                         }
                       },
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2598,
+                  "id": 3067,
                   "initialValue": {
                     "arguments": [
                       {
-                        "id": 2594,
+                        "id": 3063,
                         "name": "tokenType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2500,
-                        "src": "5328:9:1",
+                        "referencedDeclaration": 2969,
+                        "src": "5328:9:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
-                        "id": 2595,
+                        "id": 3064,
                         "name": "contractAddress",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2502,
-                        "src": "5339:15:1",
+                        "referencedDeclaration": 2971,
+                        "src": "5339:15:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2596,
+                        "id": 3065,
                         "name": "tokenId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2504,
-                        "src": "5356:7:1",
+                        "referencedDeclaration": 2973,
+                        "src": "5356:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -13417,7 +13417,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -13429,18 +13429,18 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2593,
+                      "id": 3062,
                       "name": "TrackedToken",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2231,
-                      "src": "5315:12:1",
+                      "referencedDeclaration": 2700,
+                      "src": "5315:12:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_type$_t_struct$_TrackedToken_$2231_storage_ptr_$",
+                        "typeIdentifier": "t_type$_t_struct$_TrackedToken_$2700_storage_ptr_$",
                         "typeString": "type(struct TokenTracker.TrackedToken storage pointer)"
                       }
                     },
-                    "id": 2597,
+                    "id": 3066,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -13448,40 +13448,40 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5315:49:1",
+                    "src": "5315:49:7",
                     "tryCall": false,
                     "typeDescriptions": {
-                      "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                      "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                       "typeString": "struct TokenTracker.TrackedToken memory"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "5290:74:1"
+                  "src": "5290:74:7"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2603,
+                          "id": 3072,
                           "name": "trackedTokens",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2240,
-                          "src": "5406:13:1",
+                          "referencedDeclaration": 2709,
+                          "src": "5406:13:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                             "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                           }
                         },
-                        "id": 2604,
+                        "id": 3073,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "length",
                         "nodeType": "MemberAccess",
-                        "src": "5406:20:1",
+                        "src": "5406:20:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -13497,25 +13497,25 @@
                       ],
                       "expression": {
                         "baseExpression": {
-                          "id": 2599,
+                          "id": 3068,
                           "name": "trackedTokenPositions",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2236,
-                          "src": "5374:21:1",
+                          "referencedDeclaration": 2705,
+                          "src": "5374:21:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                             "typeString": "mapping(bytes32 => uint256[] storage ref)"
                           }
                         },
-                        "id": 2601,
+                        "id": 3070,
                         "indexExpression": {
-                          "id": 2600,
+                          "id": 3069,
                           "name": "key",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2508,
-                          "src": "5396:3:1",
+                          "referencedDeclaration": 2977,
+                          "src": "5396:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
@@ -13526,26 +13526,26 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "5374:26:1",
+                        "src": "5374:26:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                           "typeString": "uint256[] storage ref"
                         }
                       },
-                      "id": 2602,
+                      "id": 3071,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "push",
                       "nodeType": "MemberAccess",
-                      "src": "5374:31:1",
+                      "src": "5374:31:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_uint256_$dyn_storage_ptr_$_t_uint256_$returns$__$bound_to$_t_array$_t_uint256_$dyn_storage_ptr_$",
                         "typeString": "function (uint256[] storage pointer,uint256)"
                       }
                     },
-                    "id": 2605,
+                    "id": 3074,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -13553,29 +13553,29 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5374:53:1",
+                    "src": "5374:53:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2606,
+                  "id": 3075,
                   "nodeType": "ExpressionStatement",
-                  "src": "5374:53:1"
+                  "src": "5374:53:7"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
-                        "id": 2610,
+                        "id": 3079,
                         "name": "tt",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2592,
-                        "src": "5456:2:1",
+                        "referencedDeclaration": 3061,
+                        "src": "5456:2:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                          "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                           "typeString": "struct TokenTracker.TrackedToken memory"
                         }
                       }
@@ -13583,36 +13583,36 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                          "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                           "typeString": "struct TokenTracker.TrackedToken memory"
                         }
                       ],
                       "expression": {
-                        "id": 2607,
+                        "id": 3076,
                         "name": "trackedTokens",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2240,
-                        "src": "5437:13:1",
+                        "referencedDeclaration": 2709,
+                        "src": "5437:13:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                           "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                         }
                       },
-                      "id": 2609,
+                      "id": 3078,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "push",
                       "nodeType": "MemberAccess",
-                      "src": "5437:18:1",
+                      "src": "5437:18:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr_$_t_struct$_TrackedToken_$2231_storage_$returns$__$bound_to$_t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr_$",
+                        "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr_$_t_struct$_TrackedToken_$2700_storage_$returns$__$bound_to$_t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr_$",
                         "typeString": "function (struct TokenTracker.TrackedToken storage ref[] storage pointer,struct TokenTracker.TrackedToken storage ref)"
                       }
                     },
-                    "id": 2611,
+                    "id": 3080,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -13620,51 +13620,51 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5437:22:1",
+                    "src": "5437:22:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2612,
+                  "id": 3081,
                   "nodeType": "ExpressionStatement",
-                  "src": "5437:22:1"
+                  "src": "5437:22:7"
                 },
                 {
                   "eventCall": {
                     "arguments": [
                       {
-                        "id": 2614,
+                        "id": 3083,
                         "name": "tokenType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2500,
-                        "src": "5487:9:1",
+                        "referencedDeclaration": 2969,
+                        "src": "5487:9:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
-                        "id": 2615,
+                        "id": 3084,
                         "name": "contractAddress",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2502,
-                        "src": "5498:15:1",
+                        "referencedDeclaration": 2971,
+                        "src": "5498:15:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2616,
+                        "id": 3085,
                         "name": "tokenId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2504,
-                        "src": "5515:7:1",
+                        "referencedDeclaration": 2973,
+                        "src": "5515:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -13674,7 +13674,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -13686,18 +13686,18 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2613,
+                      "id": 3082,
                       "name": "TokenTracked",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2164,
-                      "src": "5474:12:1",
+                      "referencedDeclaration": 2633,
+                      "src": "5474:12:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2138_$_t_address_$_t_uint256_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                         "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                       }
                     },
-                    "id": 2617,
+                    "id": 3086,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -13705,59 +13705,59 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5474:49:1",
+                    "src": "5474:49:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2618,
+                  "id": 3087,
                   "nodeType": "EmitStatement",
-                  "src": "5469:54:1"
+                  "src": "5469:54:7"
                 }
               ]
             },
-            "id": 2620,
+            "id": 3089,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_trackToken",
-            "nameLocation": "4509:11:1",
+            "nameLocation": "4509:11:7",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2505,
+              "id": 2974,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2500,
+                  "id": 2969,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "4531:9:1",
+                  "nameLocation": "4531:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2620,
-                  "src": "4521:19:1",
+                  "scope": 3089,
+                  "src": "4521:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2499,
+                    "id": 2968,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2498,
+                      "id": 2967,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "4521:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "4521:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "4521:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "4521:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -13765,13 +13765,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2502,
+                  "id": 2971,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "4550:15:1",
+                  "nameLocation": "4550:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2620,
-                  "src": "4542:23:1",
+                  "scope": 3089,
+                  "src": "4542:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -13779,10 +13779,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2501,
+                    "id": 2970,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "4542:7:1",
+                    "src": "4542:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -13793,13 +13793,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2504,
+                  "id": 2973,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "4575:7:1",
+                  "nameLocation": "4575:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2620,
-                  "src": "4567:15:1",
+                  "scope": 3089,
+                  "src": "4567:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -13807,10 +13807,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2503,
+                    "id": 2972,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "4567:7:1",
+                    "src": "4567:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -13819,40 +13819,40 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "4520:63:1"
+              "src": "4520:63:7"
             },
             "returnParameters": {
-              "id": 2506,
+              "id": 2975,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "4593:0:1"
+              "src": "4593:0:7"
             },
-            "scope": 3391,
-            "src": "4500:1030:1",
+            "scope": 3860,
+            "src": "4500:1030:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 2837,
+              "id": 3306,
               "nodeType": "Block",
-              "src": "5631:1518:1",
+              "src": "5631:1518:7",
               "statements": [
                 {
                   "assignments": [
-                    2631
+                    3100
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2631,
+                      "id": 3100,
                       "mutability": "mutable",
                       "name": "key",
-                      "nameLocation": "5649:3:1",
+                      "nameLocation": "5649:3:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2837,
-                      "src": "5641:11:1",
+                      "scope": 3306,
+                      "src": "5641:11:7",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -13860,10 +13860,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 2630,
+                        "id": 3099,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "5641:7:1",
+                        "src": "5641:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -13872,7 +13872,7 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2656,
+                  "id": 3125,
                   "initialValue": {
                     "arguments": [
                       {
@@ -13882,14 +13882,14 @@
                               {
                                 "arguments": [
                                   {
-                                    "id": 2640,
+                                    "id": 3109,
                                     "name": "tokenType",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2623,
-                                    "src": "5694:9:1",
+                                    "referencedDeclaration": 3092,
+                                    "src": "5694:9:7",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                                      "typeIdentifier": "t_enum$_TokenType_$2607",
                                       "typeString": "enum TokenTracker.TokenType"
                                     }
                                   }
@@ -13897,30 +13897,30 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                                      "typeIdentifier": "t_enum$_TokenType_$2607",
                                       "typeString": "enum TokenTracker.TokenType"
                                     }
                                   ],
-                                  "id": 2639,
+                                  "id": 3108,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "5686:7:1",
+                                  "src": "5686:7:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_uint256_$",
                                     "typeString": "type(uint256)"
                                   },
                                   "typeName": {
-                                    "id": 2638,
+                                    "id": 3107,
                                     "name": "uint256",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "5686:7:1",
+                                    "src": "5686:7:7",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 2641,
+                                "id": 3110,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -13928,7 +13928,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "5686:18:1",
+                                "src": "5686:18:7",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
@@ -13943,26 +13943,26 @@
                                   "typeString": "uint256"
                                 }
                               ],
-                              "id": 2637,
+                              "id": 3106,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "5678:7:1",
+                              "src": "5678:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 2636,
+                                "id": 3105,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "5678:7:1",
+                                "src": "5678:7:7",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 2642,
+                            "id": 3111,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -13970,7 +13970,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "5678:27:1",
+                            "src": "5678:27:7",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -13982,12 +13982,12 @@
                               {
                                 "arguments": [
                                   {
-                                    "id": 2647,
+                                    "id": 3116,
                                     "name": "contractAddress",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2625,
-                                    "src": "5723:15:1",
+                                    "referencedDeclaration": 3094,
+                                    "src": "5723:15:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_address",
                                       "typeString": "address"
@@ -14001,26 +14001,26 @@
                                       "typeString": "address"
                                     }
                                   ],
-                                  "id": 2646,
+                                  "id": 3115,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "5715:7:1",
+                                  "src": "5715:7:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes20_$",
                                     "typeString": "type(bytes20)"
                                   },
                                   "typeName": {
-                                    "id": 2645,
+                                    "id": 3114,
                                     "name": "bytes20",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "5715:7:1",
+                                    "src": "5715:7:7",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 2648,
+                                "id": 3117,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -14028,7 +14028,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "5715:24:1",
+                                "src": "5715:24:7",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes20",
@@ -14043,26 +14043,26 @@
                                   "typeString": "bytes20"
                                 }
                               ],
-                              "id": 2644,
+                              "id": 3113,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "5707:7:1",
+                              "src": "5707:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 2643,
+                                "id": 3112,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "5707:7:1",
+                                "src": "5707:7:7",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 2649,
+                            "id": 3118,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -14070,7 +14070,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "5707:33:1",
+                            "src": "5707:33:7",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -14080,12 +14080,12 @@
                           {
                             "arguments": [
                               {
-                                "id": 2652,
+                                "id": 3121,
                                 "name": "tokenId",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2627,
-                                "src": "5750:7:1",
+                                "referencedDeclaration": 3096,
+                                "src": "5750:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -14099,26 +14099,26 @@
                                   "typeString": "uint256"
                                 }
                               ],
-                              "id": 2651,
+                              "id": 3120,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "5742:7:1",
+                              "src": "5742:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 2650,
+                                "id": 3119,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "5742:7:1",
+                                "src": "5742:7:7",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 2653,
+                            "id": 3122,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -14126,7 +14126,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "5742:16:1",
+                            "src": "5742:16:7",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -14150,39 +14150,39 @@
                             }
                           ],
                           "expression": {
-                            "id": 2634,
+                            "id": 3103,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "5665:5:1",
+                            "src": "5665:5:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                               "typeString": "type(bytes storage pointer)"
                             },
                             "typeName": {
-                              "id": 2633,
+                              "id": 3102,
                               "name": "bytes",
                               "nodeType": "ElementaryTypeName",
-                              "src": "5665:5:1",
+                              "src": "5665:5:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 2635,
+                          "id": 3104,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "concat",
                           "nodeType": "MemberAccess",
-                          "src": "5665:12:1",
+                          "src": "5665:12:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                             "typeString": "function () pure returns (bytes memory)"
                           }
                         },
-                        "id": 2654,
+                        "id": 3123,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -14190,7 +14190,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "5665:94:1",
+                        "src": "5665:94:7",
                         "tryCall": false,
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_memory_ptr",
@@ -14205,18 +14205,18 @@
                           "typeString": "bytes memory"
                         }
                       ],
-                      "id": 2632,
+                      "id": 3101,
                       "name": "keccak256",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 4294967288,
-                      "src": "5655:9:1",
+                      "src": "5655:9:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                         "typeString": "function (bytes memory) pure returns (bytes32)"
                       }
                     },
-                    "id": 2655,
+                    "id": 3124,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -14224,7 +14224,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5655:105:1",
+                    "src": "5655:105:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
@@ -14232,7 +14232,7 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "5641:119:1"
+                  "src": "5641:119:7"
                 },
                 {
                   "condition": {
@@ -14240,7 +14240,7 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2662,
+                    "id": 3131,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -14248,25 +14248,25 @@
                     "leftExpression": {
                       "expression": {
                         "baseExpression": {
-                          "id": 2657,
+                          "id": 3126,
                           "name": "trackedTokenPositions",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2236,
-                          "src": "5774:21:1",
+                          "referencedDeclaration": 2705,
+                          "src": "5774:21:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                             "typeString": "mapping(bytes32 => uint256[] storage ref)"
                           }
                         },
-                        "id": 2659,
+                        "id": 3128,
                         "indexExpression": {
-                          "id": 2658,
+                          "id": 3127,
                           "name": "key",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2631,
-                          "src": "5796:3:1",
+                          "referencedDeclaration": 3100,
+                          "src": "5796:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
@@ -14277,20 +14277,20 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "5774:26:1",
+                        "src": "5774:26:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                           "typeString": "uint256[] storage ref"
                         }
                       },
-                      "id": 2660,
+                      "id": 3129,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "5774:33:1",
+                      "src": "5774:33:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
@@ -14300,63 +14300,63 @@
                     "operator": "==",
                     "rightExpression": {
                       "hexValue": "30",
-                      "id": 2661,
+                      "id": 3130,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "5811:1:1",
+                      "src": "5811:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
                       },
                       "value": "0"
                     },
-                    "src": "5774:38:1",
+                    "src": "5774:38:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2665,
+                  "id": 3134,
                   "nodeType": "IfStatement",
-                  "src": "5770:75:1",
+                  "src": "5770:75:7",
                   "trueBody": {
-                    "id": 2664,
+                    "id": 3133,
                     "nodeType": "Block",
-                    "src": "5814:31:1",
+                    "src": "5814:31:7",
                     "statements": [
                       {
-                        "functionReturnParameters": 2629,
-                        "id": 2663,
+                        "functionReturnParameters": 3098,
+                        "id": 3132,
                         "nodeType": "Return",
-                        "src": "5828:7:1"
+                        "src": "5828:7:7"
                       }
                     ]
                   }
                 },
                 {
                   "body": {
-                    "id": 2829,
+                    "id": 3298,
                     "nodeType": "Block",
-                    "src": "5917:1161:1",
+                    "src": "5917:1161:7",
                     "statements": [
                       {
                         "assignments": [
-                          2680
+                          3149
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2680,
+                            "id": 3149,
                             "mutability": "mutable",
                             "name": "j",
-                            "nameLocation": "5939:1:1",
+                            "nameLocation": "5939:1:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2829,
-                            "src": "5931:9:1",
+                            "scope": 3298,
+                            "src": "5931:9:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -14364,10 +14364,10 @@
                               "typeString": "uint256"
                             },
                             "typeName": {
-                              "id": 2679,
+                              "id": 3148,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "5931:7:1",
+                              "src": "5931:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -14376,29 +14376,29 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2686,
+                        "id": 3155,
                         "initialValue": {
                           "baseExpression": {
                             "baseExpression": {
-                              "id": 2681,
+                              "id": 3150,
                               "name": "trackedTokenPositions",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2236,
-                              "src": "5943:21:1",
+                              "referencedDeclaration": 2705,
+                              "src": "5943:21:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                 "typeString": "mapping(bytes32 => uint256[] storage ref)"
                               }
                             },
-                            "id": 2683,
+                            "id": 3152,
                             "indexExpression": {
-                              "id": 2682,
+                              "id": 3151,
                               "name": "key",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2631,
-                              "src": "5965:3:1",
+                              "referencedDeclaration": 3100,
+                              "src": "5965:3:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -14409,20 +14409,20 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "5943:26:1",
+                            "src": "5943:26:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                               "typeString": "uint256[] storage ref"
                             }
                           },
-                          "id": 2685,
+                          "id": 3154,
                           "indexExpression": {
-                            "id": 2684,
+                            "id": 3153,
                             "name": "i",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2667,
-                            "src": "5970:1:1",
+                            "referencedDeclaration": 3136,
+                            "src": "5970:1:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -14433,22 +14433,22 @@
                           "isPure": false,
                           "lValueRequested": false,
                           "nodeType": "IndexAccess",
-                          "src": "5943:29:1",
+                          "src": "5943:29:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "5931:41:1"
+                        "src": "5931:41:7"
                       },
                       {
                         "condition": {
                           "commonType": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           },
-                          "id": 2692,
+                          "id": 3161,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -14456,25 +14456,25 @@
                           "leftExpression": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2687,
+                                "id": 3156,
                                 "name": "trackedTokens",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2240,
-                                "src": "5990:13:1",
+                                "referencedDeclaration": 2709,
+                                "src": "5990:13:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                   "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                 }
                               },
-                              "id": 2689,
+                              "id": 3158,
                               "indexExpression": {
-                                "id": 2688,
+                                "id": 3157,
                                 "name": "j",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2680,
-                                "src": "6004:1:1",
+                                "referencedDeclaration": 3149,
+                                "src": "6004:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -14485,53 +14485,53 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "5990:16:1",
+                              "src": "5990:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref"
                               }
                             },
-                            "id": 2690,
+                            "id": 3159,
                             "isConstant": false,
                             "isLValue": true,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "tokenType",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2226,
-                            "src": "5990:26:1",
+                            "referencedDeclaration": 2695,
+                            "src": "5990:26:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             }
                           },
                           "nodeType": "BinaryOperation",
                           "operator": "!=",
                           "rightExpression": {
-                            "id": 2691,
+                            "id": 3160,
                             "name": "tokenType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2623,
-                            "src": "6020:9:1",
+                            "referencedDeclaration": 3092,
+                            "src": "6020:9:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             }
                           },
-                          "src": "5990:39:1",
+                          "src": "5990:39:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "id": 2694,
+                        "id": 3163,
                         "nodeType": "IfStatement",
-                        "src": "5986:53:1",
+                        "src": "5986:53:7",
                         "trueBody": {
-                          "id": 2693,
+                          "id": 3162,
                           "nodeType": "Continue",
-                          "src": "6031:8:1"
+                          "src": "6031:8:7"
                         }
                       },
                       {
@@ -14540,7 +14540,7 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
-                          "id": 2700,
+                          "id": 3169,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -14548,25 +14548,25 @@
                           "leftExpression": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2695,
+                                "id": 3164,
                                 "name": "trackedTokens",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2240,
-                                "src": "6057:13:1",
+                                "referencedDeclaration": 2709,
+                                "src": "6057:13:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                   "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                 }
                               },
-                              "id": 2697,
+                              "id": 3166,
                               "indexExpression": {
-                                "id": 2696,
+                                "id": 3165,
                                 "name": "j",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2680,
-                                "src": "6071:1:1",
+                                "referencedDeclaration": 3149,
+                                "src": "6071:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -14577,21 +14577,21 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "6057:16:1",
+                              "src": "6057:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref"
                               }
                             },
-                            "id": 2698,
+                            "id": 3167,
                             "isConstant": false,
                             "isLValue": true,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "tokenId",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2230,
-                            "src": "6057:24:1",
+                            "referencedDeclaration": 2699,
+                            "src": "6057:24:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -14600,30 +14600,30 @@
                           "nodeType": "BinaryOperation",
                           "operator": "!=",
                           "rightExpression": {
-                            "id": 2699,
+                            "id": 3168,
                             "name": "tokenId",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2627,
-                            "src": "6085:7:1",
+                            "referencedDeclaration": 3096,
+                            "src": "6085:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "6057:35:1",
+                          "src": "6057:35:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "id": 2702,
+                        "id": 3171,
                         "nodeType": "IfStatement",
-                        "src": "6053:49:1",
+                        "src": "6053:49:7",
                         "trueBody": {
-                          "id": 2701,
+                          "id": 3170,
                           "nodeType": "Continue",
-                          "src": "6094:8:1"
+                          "src": "6094:8:7"
                         }
                       },
                       {
@@ -14632,7 +14632,7 @@
                             "typeIdentifier": "t_address",
                             "typeString": "address"
                           },
-                          "id": 2708,
+                          "id": 3177,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -14640,25 +14640,25 @@
                           "leftExpression": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2703,
+                                "id": 3172,
                                 "name": "trackedTokens",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2240,
-                                "src": "6120:13:1",
+                                "referencedDeclaration": 2709,
+                                "src": "6120:13:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                   "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                 }
                               },
-                              "id": 2705,
+                              "id": 3174,
                               "indexExpression": {
-                                "id": 2704,
+                                "id": 3173,
                                 "name": "j",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2680,
-                                "src": "6134:1:1",
+                                "referencedDeclaration": 3149,
+                                "src": "6134:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -14669,21 +14669,21 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "6120:16:1",
+                              "src": "6120:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref"
                               }
                             },
-                            "id": 2706,
+                            "id": 3175,
                             "isConstant": false,
                             "isLValue": true,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "contractAddress",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2228,
-                            "src": "6120:32:1",
+                            "referencedDeclaration": 2697,
+                            "src": "6120:32:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_address",
                               "typeString": "address"
@@ -14692,46 +14692,46 @@
                           "nodeType": "BinaryOperation",
                           "operator": "!=",
                           "rightExpression": {
-                            "id": 2707,
+                            "id": 3176,
                             "name": "contractAddress",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2625,
-                            "src": "6156:15:1",
+                            "referencedDeclaration": 3094,
+                            "src": "6156:15:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_address",
                               "typeString": "address"
                             }
                           },
-                          "src": "6120:51:1",
+                          "src": "6120:51:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "id": 2710,
+                        "id": 3179,
                         "nodeType": "IfStatement",
-                        "src": "6116:65:1",
+                        "src": "6116:65:7",
                         "trueBody": {
-                          "id": 2709,
+                          "id": 3178,
                           "nodeType": "Continue",
-                          "src": "6173:8:1"
+                          "src": "6173:8:7"
                         }
                       },
                       {
                         "assignments": [
-                          2712
+                          3181
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2712,
+                            "id": 3181,
                             "mutability": "mutable",
                             "name": "swappedPosition",
-                            "nameLocation": "6234:15:1",
+                            "nameLocation": "6234:15:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2829,
-                            "src": "6226:23:1",
+                            "scope": 3298,
+                            "src": "6226:23:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -14739,10 +14739,10 @@
                               "typeString": "uint256"
                             },
                             "typeName": {
-                              "id": 2711,
+                              "id": 3180,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "6226:7:1",
+                              "src": "6226:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -14751,38 +14751,38 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2717,
+                        "id": 3186,
                         "initialValue": {
                           "commonType": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
-                          "id": 2716,
+                          "id": 3185,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
                             "expression": {
-                              "id": 2713,
+                              "id": 3182,
                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "6252:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "6252:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
-                            "id": 2714,
+                            "id": 3183,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "6252:20:1",
+                            "src": "6252:20:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -14792,57 +14792,57 @@
                           "operator": "-",
                           "rightExpression": {
                             "hexValue": "31",
-                            "id": 2715,
+                            "id": 3184,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "6275:1:1",
+                            "src": "6275:1:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_1_by_1",
                               "typeString": "int_const 1"
                             },
                             "value": "1"
                           },
-                          "src": "6252:24:1",
+                          "src": "6252:24:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "6226:50:1"
+                        "src": "6226:50:7"
                       },
                       {
                         "expression": {
-                          "id": 2724,
+                          "id": 3193,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
                             "baseExpression": {
-                              "id": 2718,
+                              "id": 3187,
                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "6290:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "6290:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
-                            "id": 2720,
+                            "id": 3189,
                             "indexExpression": {
-                              "id": 2719,
+                              "id": 3188,
                               "name": "j",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2680,
-                              "src": "6304:1:1",
+                              "referencedDeclaration": 3149,
+                              "src": "6304:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -14853,9 +14853,9 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "6290:16:1",
+                            "src": "6290:16:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                             }
                           },
@@ -14863,25 +14863,25 @@
                           "operator": "=",
                           "rightHandSide": {
                             "baseExpression": {
-                              "id": 2721,
+                              "id": 3190,
                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "6309:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "6309:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
-                            "id": 2723,
+                            "id": 3192,
                             "indexExpression": {
-                              "id": 2722,
+                              "id": 3191,
                               "name": "swappedPosition",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2712,
-                              "src": "6323:15:1",
+                              "referencedDeclaration": 3181,
+                              "src": "6323:15:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -14892,36 +14892,36 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "6309:30:1",
+                            "src": "6309:30:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                             }
                           },
-                          "src": "6290:49:1",
+                          "src": "6290:49:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                            "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                             "typeString": "struct TokenTracker.TrackedToken storage ref"
                           }
                         },
-                        "id": 2725,
+                        "id": 3194,
                         "nodeType": "ExpressionStatement",
-                        "src": "6290:49:1"
+                        "src": "6290:49:7"
                       },
                       {
                         "assignments": [
-                          2727
+                          3196
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2727,
+                            "id": 3196,
                             "mutability": "mutable",
                             "name": "swappedKey",
-                            "nameLocation": "6361:10:1",
+                            "nameLocation": "6361:10:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2829,
-                            "src": "6353:18:1",
+                            "scope": 3298,
+                            "src": "6353:18:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -14929,10 +14929,10 @@
                               "typeString": "bytes32"
                             },
                             "typeName": {
-                              "id": 2726,
+                              "id": 3195,
                               "name": "bytes32",
                               "nodeType": "ElementaryTypeName",
-                              "src": "6353:7:1",
+                              "src": "6353:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -14941,7 +14941,7 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2761,
+                        "id": 3230,
                         "initialValue": {
                           "arguments": [
                             {
@@ -14953,25 +14953,25 @@
                                         {
                                           "expression": {
                                             "baseExpression": {
-                                              "id": 2736,
+                                              "id": 3205,
                                               "name": "trackedTokens",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 2240,
-                                              "src": "6413:13:1",
+                                              "referencedDeclaration": 2709,
+                                              "src": "6413:13:7",
                                               "typeDescriptions": {
-                                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                               }
                                             },
-                                            "id": 2738,
+                                            "id": 3207,
                                             "indexExpression": {
-                                              "id": 2737,
+                                              "id": 3206,
                                               "name": "j",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 2680,
-                                              "src": "6427:1:1",
+                                              "referencedDeclaration": 3149,
+                                              "src": "6427:1:7",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_uint256",
                                                 "typeString": "uint256"
@@ -14982,23 +14982,23 @@
                                             "isPure": false,
                                             "lValueRequested": false,
                                             "nodeType": "IndexAccess",
-                                            "src": "6413:16:1",
+                                            "src": "6413:16:7",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                                             }
                                           },
-                                          "id": 2739,
+                                          "id": 3208,
                                           "isConstant": false,
                                           "isLValue": true,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "memberName": "tokenType",
                                           "nodeType": "MemberAccess",
-                                          "referencedDeclaration": 2226,
-                                          "src": "6413:26:1",
+                                          "referencedDeclaration": 2695,
+                                          "src": "6413:26:7",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         }
@@ -15006,30 +15006,30 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         ],
-                                        "id": 2735,
+                                        "id": 3204,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "6405:7:1",
+                                        "src": "6405:7:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_uint256_$",
                                           "typeString": "type(uint256)"
                                         },
                                         "typeName": {
-                                          "id": 2734,
+                                          "id": 3203,
                                           "name": "uint256",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "6405:7:1",
+                                          "src": "6405:7:7",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 2740,
+                                      "id": 3209,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -15037,7 +15037,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "6405:35:1",
+                                      "src": "6405:35:7",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
@@ -15052,26 +15052,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 2733,
+                                    "id": 3202,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "6397:7:1",
+                                    "src": "6397:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2732,
+                                      "id": 3201,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "6397:7:1",
+                                      "src": "6397:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2741,
+                                  "id": 3210,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -15079,7 +15079,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "6397:44:1",
+                                  "src": "6397:44:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -15093,25 +15093,25 @@
                                         {
                                           "expression": {
                                             "baseExpression": {
-                                              "id": 2746,
+                                              "id": 3215,
                                               "name": "trackedTokens",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 2240,
-                                              "src": "6459:13:1",
+                                              "referencedDeclaration": 2709,
+                                              "src": "6459:13:7",
                                               "typeDescriptions": {
-                                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                               }
                                             },
-                                            "id": 2748,
+                                            "id": 3217,
                                             "indexExpression": {
-                                              "id": 2747,
+                                              "id": 3216,
                                               "name": "j",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 2680,
-                                              "src": "6473:1:1",
+                                              "referencedDeclaration": 3149,
+                                              "src": "6473:1:7",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_uint256",
                                                 "typeString": "uint256"
@@ -15122,21 +15122,21 @@
                                             "isPure": false,
                                             "lValueRequested": false,
                                             "nodeType": "IndexAccess",
-                                            "src": "6459:16:1",
+                                            "src": "6459:16:7",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                                             }
                                           },
-                                          "id": 2749,
+                                          "id": 3218,
                                           "isConstant": false,
                                           "isLValue": true,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "memberName": "contractAddress",
                                           "nodeType": "MemberAccess",
-                                          "referencedDeclaration": 2228,
-                                          "src": "6459:32:1",
+                                          "referencedDeclaration": 2697,
+                                          "src": "6459:32:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
@@ -15150,26 +15150,26 @@
                                             "typeString": "address"
                                           }
                                         ],
-                                        "id": 2745,
+                                        "id": 3214,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "6451:7:1",
+                                        "src": "6451:7:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes20_$",
                                           "typeString": "type(bytes20)"
                                         },
                                         "typeName": {
-                                          "id": 2744,
+                                          "id": 3213,
                                           "name": "bytes20",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "6451:7:1",
+                                          "src": "6451:7:7",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 2750,
+                                      "id": 3219,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -15177,7 +15177,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "6451:41:1",
+                                      "src": "6451:41:7",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes20",
@@ -15192,26 +15192,26 @@
                                         "typeString": "bytes20"
                                       }
                                     ],
-                                    "id": 2743,
+                                    "id": 3212,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "6443:7:1",
+                                    "src": "6443:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2742,
+                                      "id": 3211,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "6443:7:1",
+                                      "src": "6443:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2751,
+                                  "id": 3220,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -15219,7 +15219,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "6443:50:1",
+                                  "src": "6443:50:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -15231,25 +15231,25 @@
                                     {
                                       "expression": {
                                         "baseExpression": {
-                                          "id": 2754,
+                                          "id": 3223,
                                           "name": "trackedTokens",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2240,
-                                          "src": "6503:13:1",
+                                          "referencedDeclaration": 2709,
+                                          "src": "6503:13:7",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                             "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                           }
                                         },
-                                        "id": 2756,
+                                        "id": 3225,
                                         "indexExpression": {
-                                          "id": 2755,
+                                          "id": 3224,
                                           "name": "j",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2680,
-                                          "src": "6517:1:1",
+                                          "referencedDeclaration": 3149,
+                                          "src": "6517:1:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
@@ -15260,21 +15260,21 @@
                                         "isPure": false,
                                         "lValueRequested": false,
                                         "nodeType": "IndexAccess",
-                                        "src": "6503:16:1",
+                                        "src": "6503:16:7",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                          "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                           "typeString": "struct TokenTracker.TrackedToken storage ref"
                                         }
                                       },
-                                      "id": 2757,
+                                      "id": 3226,
                                       "isConstant": false,
                                       "isLValue": true,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "memberName": "tokenId",
                                       "nodeType": "MemberAccess",
-                                      "referencedDeclaration": 2230,
-                                      "src": "6503:24:1",
+                                      "referencedDeclaration": 2699,
+                                      "src": "6503:24:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -15288,26 +15288,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 2753,
+                                    "id": 3222,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "6495:7:1",
+                                    "src": "6495:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2752,
+                                      "id": 3221,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "6495:7:1",
+                                      "src": "6495:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2758,
+                                  "id": 3227,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -15315,7 +15315,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "6495:33:1",
+                                  "src": "6495:33:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -15339,39 +15339,39 @@
                                   }
                                 ],
                                 "expression": {
-                                  "id": 2730,
+                                  "id": 3199,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "6384:5:1",
+                                  "src": "6384:5:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                     "typeString": "type(bytes storage pointer)"
                                   },
                                   "typeName": {
-                                    "id": 2729,
+                                    "id": 3198,
                                     "name": "bytes",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "6384:5:1",
+                                    "src": "6384:5:7",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 2731,
+                                "id": 3200,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "memberName": "concat",
                                 "nodeType": "MemberAccess",
-                                "src": "6384:12:1",
+                                "src": "6384:12:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                   "typeString": "function () pure returns (bytes memory)"
                                 }
                               },
-                              "id": 2759,
+                              "id": 3228,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -15379,7 +15379,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "6384:145:1",
+                              "src": "6384:145:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_memory_ptr",
@@ -15394,18 +15394,18 @@
                                 "typeString": "bytes memory"
                               }
                             ],
-                            "id": 2728,
+                            "id": 3197,
                             "name": "keccak256",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 4294967288,
-                            "src": "6374:9:1",
+                            "src": "6374:9:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                               "typeString": "function (bytes memory) pure returns (bytes32)"
                             }
                           },
-                          "id": 2760,
+                          "id": 3229,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -15413,7 +15413,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "6374:156:1",
+                          "src": "6374:156:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
@@ -15421,7 +15421,7 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "6353:177:1"
+                        "src": "6353:177:7"
                       },
                       {
                         "expression": {
@@ -15429,31 +15429,31 @@
                           "expression": {
                             "argumentTypes": [],
                             "expression": {
-                              "id": 2762,
+                              "id": 3231,
                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "6544:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "6544:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
-                            "id": 2764,
+                            "id": 3233,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "pop",
                             "nodeType": "MemberAccess",
-                            "src": "6544:17:1",
+                            "src": "6544:17:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_function_arraypop_nonpayable$_t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr_$returns$__$bound_to$_t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr_$",
+                              "typeIdentifier": "t_function_arraypop_nonpayable$_t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr_$returns$__$bound_to$_t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr_$",
                               "typeString": "function (struct TokenTracker.TrackedToken storage ref[] storage pointer)"
                             }
                           },
-                          "id": 2765,
+                          "id": 3234,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -15461,22 +15461,22 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "6544:19:1",
+                          "src": "6544:19:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 2766,
+                        "id": 3235,
                         "nodeType": "ExpressionStatement",
-                        "src": "6544:19:1"
+                        "src": "6544:19:7"
                       },
                       {
                         "body": {
-                          "id": 2797,
+                          "id": 3266,
                           "nodeType": "Block",
-                          "src": "6647:174:1",
+                          "src": "6647:174:7",
                           "statements": [
                             {
                               "condition": {
@@ -15484,7 +15484,7 @@
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
                                 },
-                                "id": 2786,
+                                "id": 3255,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -15492,25 +15492,25 @@
                                 "leftExpression": {
                                   "baseExpression": {
                                     "baseExpression": {
-                                      "id": 2780,
+                                      "id": 3249,
                                       "name": "trackedTokenPositions",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2236,
-                                      "src": "6669:21:1",
+                                      "referencedDeclaration": 2705,
+                                      "src": "6669:21:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                         "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                       }
                                     },
-                                    "id": 2782,
+                                    "id": 3251,
                                     "indexExpression": {
-                                      "id": 2781,
+                                      "id": 3250,
                                       "name": "swappedKey",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2727,
-                                      "src": "6691:10:1",
+                                      "referencedDeclaration": 3196,
+                                      "src": "6691:10:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes32",
                                         "typeString": "bytes32"
@@ -15521,20 +15521,20 @@
                                     "isPure": false,
                                     "lValueRequested": false,
                                     "nodeType": "IndexAccess",
-                                    "src": "6669:33:1",
+                                    "src": "6669:33:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                       "typeString": "uint256[] storage ref"
                                     }
                                   },
-                                  "id": 2784,
+                                  "id": 3253,
                                   "indexExpression": {
-                                    "id": 2783,
+                                    "id": 3252,
                                     "name": "k",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2768,
-                                    "src": "6703:1:1",
+                                    "referencedDeclaration": 3237,
+                                    "src": "6703:1:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
@@ -15545,7 +15545,7 @@
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "nodeType": "IndexAccess",
-                                  "src": "6669:36:1",
+                                  "src": "6669:36:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
@@ -15554,34 +15554,34 @@
                                 "nodeType": "BinaryOperation",
                                 "operator": "==",
                                 "rightExpression": {
-                                  "id": 2785,
+                                  "id": 3254,
                                   "name": "swappedPosition",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2712,
-                                  "src": "6709:15:1",
+                                  "referencedDeclaration": 3181,
+                                  "src": "6709:15:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
-                                "src": "6669:55:1",
+                                "src": "6669:55:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bool",
                                   "typeString": "bool"
                                 }
                               },
-                              "id": 2796,
+                              "id": 3265,
                               "nodeType": "IfStatement",
-                              "src": "6665:142:1",
+                              "src": "6665:142:7",
                               "trueBody": {
-                                "id": 2795,
+                                "id": 3264,
                                 "nodeType": "Block",
-                                "src": "6726:81:1",
+                                "src": "6726:81:7",
                                 "statements": [
                                   {
                                     "expression": {
-                                      "id": 2793,
+                                      "id": 3262,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -15589,25 +15589,25 @@
                                       "leftHandSide": {
                                         "baseExpression": {
                                           "baseExpression": {
-                                            "id": 2787,
+                                            "id": 3256,
                                             "name": "trackedTokenPositions",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 2236,
-                                            "src": "6748:21:1",
+                                            "referencedDeclaration": 2705,
+                                            "src": "6748:21:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                               "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                             }
                                           },
-                                          "id": 2790,
+                                          "id": 3259,
                                           "indexExpression": {
-                                            "id": 2788,
+                                            "id": 3257,
                                             "name": "swappedKey",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 2727,
-                                            "src": "6770:10:1",
+                                            "referencedDeclaration": 3196,
+                                            "src": "6770:10:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_bytes32",
                                               "typeString": "bytes32"
@@ -15618,20 +15618,20 @@
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "nodeType": "IndexAccess",
-                                          "src": "6748:33:1",
+                                          "src": "6748:33:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                             "typeString": "uint256[] storage ref"
                                           }
                                         },
-                                        "id": 2791,
+                                        "id": 3260,
                                         "indexExpression": {
-                                          "id": 2789,
+                                          "id": 3258,
                                           "name": "k",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2768,
-                                          "src": "6782:1:1",
+                                          "referencedDeclaration": 3237,
+                                          "src": "6782:1:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -15642,7 +15642,7 @@
                                         "isPure": false,
                                         "lValueRequested": true,
                                         "nodeType": "IndexAccess",
-                                        "src": "6748:36:1",
+                                        "src": "6748:36:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
@@ -15651,26 +15651,26 @@
                                       "nodeType": "Assignment",
                                       "operator": "=",
                                       "rightHandSide": {
-                                        "id": 2792,
+                                        "id": 3261,
                                         "name": "j",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2680,
-                                        "src": "6787:1:1",
+                                        "referencedDeclaration": 3149,
+                                        "src": "6787:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
                                         }
                                       },
-                                      "src": "6748:40:1",
+                                      "src": "6748:40:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
                                       }
                                     },
-                                    "id": 2794,
+                                    "id": 3263,
                                     "nodeType": "ExpressionStatement",
-                                    "src": "6748:40:1"
+                                    "src": "6748:40:7"
                                   }
                                 ]
                               }
@@ -15682,18 +15682,18 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
-                          "id": 2776,
+                          "id": 3245,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 2771,
+                            "id": 3240,
                             "name": "k",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2768,
-                            "src": "6596:1:1",
+                            "referencedDeclaration": 3237,
+                            "src": "6596:1:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -15704,25 +15704,25 @@
                           "rightExpression": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2772,
+                                "id": 3241,
                                 "name": "trackedTokenPositions",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2236,
-                                "src": "6600:21:1",
+                                "referencedDeclaration": 2705,
+                                "src": "6600:21:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                   "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                 }
                               },
-                              "id": 2774,
+                              "id": 3243,
                               "indexExpression": {
-                                "id": 2773,
+                                "id": 3242,
                                 "name": "swappedKey",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2727,
-                                "src": "6622:10:1",
+                                "referencedDeclaration": 3196,
+                                "src": "6622:10:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -15733,46 +15733,46 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "6600:33:1",
+                              "src": "6600:33:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                 "typeString": "uint256[] storage ref"
                               }
                             },
-                            "id": 2775,
+                            "id": 3244,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "6600:40:1",
+                            "src": "6600:40:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "6596:44:1",
+                          "src": "6596:44:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "id": 2798,
+                        "id": 3267,
                         "initializationExpression": {
                           "assignments": [
-                            2768
+                            3237
                           ],
                           "declarations": [
                             {
                               "constant": false,
-                              "id": 2768,
+                              "id": 3237,
                               "mutability": "mutable",
                               "name": "k",
-                              "nameLocation": "6589:1:1",
+                              "nameLocation": "6589:1:7",
                               "nodeType": "VariableDeclaration",
-                              "scope": 2798,
-                              "src": "6582:8:1",
+                              "scope": 3267,
+                              "src": "6582:8:7",
                               "stateVariable": false,
                               "storageLocation": "default",
                               "typeDescriptions": {
@@ -15780,10 +15780,10 @@
                                 "typeString": "uint32"
                               },
                               "typeName": {
-                                "id": 2767,
+                                "id": 3236,
                                 "name": "uint32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "6582:6:1",
+                                "src": "6582:6:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
@@ -15792,17 +15792,17 @@
                               "visibility": "internal"
                             }
                           ],
-                          "id": 2770,
+                          "id": 3239,
                           "initialValue": {
                             "hexValue": "30",
-                            "id": 2769,
+                            "id": 3238,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "6593:1:1",
+                            "src": "6593:1:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_0_by_1",
                               "typeString": "int_const 0"
@@ -15810,11 +15810,11 @@
                             "value": "0"
                           },
                           "nodeType": "VariableDeclarationStatement",
-                          "src": "6582:12:1"
+                          "src": "6582:12:7"
                         },
                         "loopExpression": {
                           "expression": {
-                            "id": 2778,
+                            "id": 3247,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -15822,14 +15822,14 @@
                             "nodeType": "UnaryOperation",
                             "operator": "++",
                             "prefix": false,
-                            "src": "6642:3:1",
+                            "src": "6642:3:7",
                             "subExpression": {
-                              "id": 2777,
+                              "id": 3246,
                               "name": "k",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2768,
-                              "src": "6642:1:1",
+                              "referencedDeclaration": 3237,
+                              "src": "6642:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -15840,16 +15840,16 @@
                               "typeString": "uint32"
                             }
                           },
-                          "id": 2779,
+                          "id": 3248,
                           "nodeType": "ExpressionStatement",
-                          "src": "6642:3:1"
+                          "src": "6642:3:7"
                         },
                         "nodeType": "ForStatement",
-                        "src": "6577:244:1"
+                        "src": "6577:244:7"
                       },
                       {
                         "expression": {
-                          "id": 2814,
+                          "id": 3283,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -15857,25 +15857,25 @@
                           "leftHandSide": {
                             "baseExpression": {
                               "baseExpression": {
-                                "id": 2799,
+                                "id": 3268,
                                 "name": "trackedTokenPositions",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2236,
-                                "src": "6834:21:1",
+                                "referencedDeclaration": 2705,
+                                "src": "6834:21:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                   "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                 }
                               },
-                              "id": 2802,
+                              "id": 3271,
                               "indexExpression": {
-                                "id": 2800,
+                                "id": 3269,
                                 "name": "key",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2631,
-                                "src": "6856:3:1",
+                                "referencedDeclaration": 3100,
+                                "src": "6856:3:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -15886,20 +15886,20 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "6834:26:1",
+                              "src": "6834:26:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                 "typeString": "uint256[] storage ref"
                               }
                             },
-                            "id": 2803,
+                            "id": 3272,
                             "indexExpression": {
-                              "id": 2801,
+                              "id": 3270,
                               "name": "j",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2680,
-                              "src": "6861:1:1",
+                              "referencedDeclaration": 3149,
+                              "src": "6861:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -15910,7 +15910,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "6834:29:1",
+                            "src": "6834:29:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -15921,25 +15921,25 @@
                           "rightHandSide": {
                             "baseExpression": {
                               "baseExpression": {
-                                "id": 2804,
+                                "id": 3273,
                                 "name": "trackedTokenPositions",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2236,
-                                "src": "6866:21:1",
+                                "referencedDeclaration": 2705,
+                                "src": "6866:21:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                   "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                 }
                               },
-                              "id": 2806,
+                              "id": 3275,
                               "indexExpression": {
-                                "id": 2805,
+                                "id": 3274,
                                 "name": "key",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2631,
-                                "src": "6888:3:1",
+                                "referencedDeclaration": 3100,
+                                "src": "6888:3:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -15950,19 +15950,19 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "6866:26:1",
+                              "src": "6866:26:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                 "typeString": "uint256[] storage ref"
                               }
                             },
-                            "id": 2813,
+                            "id": 3282,
                             "indexExpression": {
                               "commonType": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               },
-                              "id": 2812,
+                              "id": 3281,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -15970,25 +15970,25 @@
                               "leftExpression": {
                                 "expression": {
                                   "baseExpression": {
-                                    "id": 2807,
+                                    "id": 3276,
                                     "name": "trackedTokenPositions",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2236,
-                                    "src": "6893:21:1",
+                                    "referencedDeclaration": 2705,
+                                    "src": "6893:21:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                       "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                     }
                                   },
-                                  "id": 2809,
+                                  "id": 3278,
                                   "indexExpression": {
-                                    "id": 2808,
+                                    "id": 3277,
                                     "name": "key",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2631,
-                                    "src": "6915:3:1",
+                                    "referencedDeclaration": 3100,
+                                    "src": "6915:3:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes32",
                                       "typeString": "bytes32"
@@ -15999,20 +15999,20 @@
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "nodeType": "IndexAccess",
-                                  "src": "6893:26:1",
+                                  "src": "6893:26:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                     "typeString": "uint256[] storage ref"
                                   }
                                 },
-                                "id": 2810,
+                                "id": 3279,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "memberName": "length",
                                 "nodeType": "MemberAccess",
-                                "src": "6893:33:1",
+                                "src": "6893:33:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -16022,21 +16022,21 @@
                               "operator": "-",
                               "rightExpression": {
                                 "hexValue": "31",
-                                "id": 2811,
+                                "id": 3280,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
                                 "kind": "number",
                                 "lValueRequested": false,
                                 "nodeType": "Literal",
-                                "src": "6929:1:1",
+                                "src": "6929:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_rational_1_by_1",
                                   "typeString": "int_const 1"
                                 },
                                 "value": "1"
                               },
-                              "src": "6893:37:1",
+                              "src": "6893:37:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -16047,21 +16047,21 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "6866:65:1",
+                            "src": "6866:65:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "6834:97:1",
+                          "src": "6834:97:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
-                        "id": 2815,
+                        "id": 3284,
                         "nodeType": "ExpressionStatement",
-                        "src": "6834:97:1"
+                        "src": "6834:97:7"
                       },
                       {
                         "expression": {
@@ -16070,25 +16070,25 @@
                             "argumentTypes": [],
                             "expression": {
                               "baseExpression": {
-                                "id": 2816,
+                                "id": 3285,
                                 "name": "trackedTokenPositions",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2236,
-                                "src": "6945:21:1",
+                                "referencedDeclaration": 2705,
+                                "src": "6945:21:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                   "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                 }
                               },
-                              "id": 2818,
+                              "id": 3287,
                               "indexExpression": {
-                                "id": 2817,
+                                "id": 3286,
                                 "name": "key",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2631,
-                                "src": "6967:3:1",
+                                "referencedDeclaration": 3100,
+                                "src": "6967:3:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -16099,26 +16099,26 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "6945:26:1",
+                              "src": "6945:26:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                 "typeString": "uint256[] storage ref"
                               }
                             },
-                            "id": 2819,
+                            "id": 3288,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "pop",
                             "nodeType": "MemberAccess",
-                            "src": "6945:30:1",
+                            "src": "6945:30:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_arraypop_nonpayable$_t_array$_t_uint256_$dyn_storage_ptr_$returns$__$bound_to$_t_array$_t_uint256_$dyn_storage_ptr_$",
                               "typeString": "function (uint256[] storage pointer)"
                             }
                           },
-                          "id": 2820,
+                          "id": 3289,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -16126,51 +16126,51 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "6945:32:1",
+                          "src": "6945:32:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 2821,
+                        "id": 3290,
                         "nodeType": "ExpressionStatement",
-                        "src": "6945:32:1"
+                        "src": "6945:32:7"
                       },
                       {
                         "eventCall": {
                           "arguments": [
                             {
-                              "id": 2823,
+                              "id": 3292,
                               "name": "tokenType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2623,
-                              "src": "7011:9:1",
+                              "referencedDeclaration": 3092,
+                              "src": "7011:9:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             {
-                              "id": 2824,
+                              "id": 3293,
                               "name": "contractAddress",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2625,
-                              "src": "7022:15:1",
+                              "referencedDeclaration": 3094,
+                              "src": "7022:15:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
                                 "typeString": "address"
                               }
                             },
                             {
-                              "id": 2825,
+                              "id": 3294,
                               "name": "tokenId",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2627,
-                              "src": "7039:7:1",
+                              "referencedDeclaration": 3096,
+                              "src": "7039:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -16180,7 +16180,7 @@
                           "expression": {
                             "argumentTypes": [
                               {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               },
                               {
@@ -16192,18 +16192,18 @@
                                 "typeString": "uint256"
                               }
                             ],
-                            "id": 2822,
+                            "id": 3291,
                             "name": "TokenUntracked",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2173,
-                            "src": "6996:14:1",
+                            "referencedDeclaration": 2642,
+                            "src": "6996:14:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2138_$_t_address_$_t_uint256_$returns$__$",
+                              "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                               "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                             }
                           },
-                          "id": 2826,
+                          "id": 3295,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -16211,22 +16211,22 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "6996:51:1",
+                          "src": "6996:51:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 2827,
+                        "id": 3296,
                         "nodeType": "EmitStatement",
-                        "src": "6991:56:1"
+                        "src": "6991:56:7"
                       },
                       {
-                        "functionReturnParameters": 2629,
-                        "id": 2828,
+                        "functionReturnParameters": 3098,
+                        "id": 3297,
                         "nodeType": "Return",
-                        "src": "7061:7:1"
+                        "src": "7061:7:7"
                       }
                     ]
                   },
@@ -16235,18 +16235,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2675,
+                    "id": 3144,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
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+                      "id": 3139,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2667,
-                      "src": "5873:1:1",
+                      "referencedDeclaration": 3136,
+                      "src": "5873:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -16257,25 +16257,25 @@
                     "rightExpression": {
                       "expression": {
                         "baseExpression": {
-                          "id": 2671,
+                          "id": 3140,
                           "name": "trackedTokenPositions",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2236,
-                          "src": "5877:21:1",
+                          "referencedDeclaration": 2705,
+                          "src": "5877:21:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                             "typeString": "mapping(bytes32 => uint256[] storage ref)"
                           }
                         },
-                        "id": 2673,
+                        "id": 3142,
                         "indexExpression": {
-                          "id": 2672,
+                          "id": 3141,
                           "name": "key",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2631,
-                          "src": "5899:3:1",
+                          "referencedDeclaration": 3100,
+                          "src": "5899:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
@@ -16286,46 +16286,46 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "5877:26:1",
+                        "src": "5877:26:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                           "typeString": "uint256[] storage ref"
                         }
                       },
-                      "id": 2674,
+                      "id": 3143,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "5877:33:1",
+                      "src": "5877:33:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "5873:37:1",
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                       "typeString": "bool"
                     }
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+                  "id": 3299,
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+                      3136
                     ],
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                       {
                         "constant": false,
-                        "id": 2667,
+                        "id": 3136,
                         "mutability": "mutable",
                         "name": "i",
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+                        "nameLocation": "5866:1:7",
                         "nodeType": "VariableDeclaration",
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-                        "src": "5859:8:1",
+                        "scope": 3299,
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                         "stateVariable": false,
                         "storageLocation": "default",
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@@ -16333,10 +16333,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 2666,
+                          "id": 3135,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "5859:6:1",
+                          "src": "5859:6:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -16345,17 +16345,17 @@
                         "visibility": "internal"
                       }
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                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "5870:1:1",
+                      "src": "5870:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -16363,11 +16363,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "5859:12:1"
+                    "src": "5859:12:7"
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@@ -16375,14 +16375,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "5912:3:1",
+                      "src": "5912:3:7",
                       "subExpression": {
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                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
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-                        "src": "5912:1:1",
+                        "referencedDeclaration": 3136,
+                        "src": "5912:1:7",
                         "typeDescriptions": {
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                           "typeString": "uint32"
@@ -16393,47 +16393,47 @@
                         "typeString": "uint32"
                       }
                     },
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+                    "id": 3147,
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                   },
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+                  "src": "5854:1224:7"
                 },
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                   "eventCall": {
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                       {
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+                        "id": 3301,
                         "name": "tokenType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2623,
-                        "src": "7106:9:1",
+                        "referencedDeclaration": 3092,
+                        "src": "7106:9:7",
                         "typeDescriptions": {
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+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
-                        "id": 2833,
+                        "id": 3302,
                         "name": "contractAddress",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2625,
-                        "src": "7117:15:1",
+                        "referencedDeclaration": 3094,
+                        "src": "7117:15:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
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                       {
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+                        "id": 3303,
                         "name": "tokenId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2627,
-                        "src": "7134:7:1",
+                        "referencedDeclaration": 3096,
+                        "src": "7134:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -16443,7 +16443,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -16455,18 +16455,18 @@
                           "typeString": "uint256"
                         }
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-                      "src": "7092:13:1",
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                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2138_$_t_address_$_t_uint256_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                         "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                       }
                     },
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@@ -16474,59 +16474,59 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "7092:50:1",
+                    "src": "7092:50:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
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               ]
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+            "id": 3307,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_untrackToken",
-            "nameLocation": "5545:13:1",
+            "nameLocation": "5545:13:7",
             "nodeType": "FunctionDefinition",
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                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
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                     "nodeType": "UserDefinedTypeName",
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+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
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@@ -16534,13 +16534,13 @@
                 },
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                   "constant": false,
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+                  "id": 3094,
                   "mutability": "mutable",
                   "name": "contractAddress",
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@@ -16548,10 +16548,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
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+                    "id": 3093,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "5580:7:1",
+                    "src": "5580:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -16562,13 +16562,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2627,
+                  "id": 3096,
                   "mutability": "mutable",
                   "name": "tokenId",
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@@ -16576,10 +16576,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2626,
+                    "id": 3095,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "5605:7:1",
+                    "src": "5605:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -16588,95 +16588,95 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "5558:63:1"
+              "src": "5558:63:7"
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+              "src": "5631:0:7"
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-            "src": "5536:1613:1",
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+            "src": "5536:1613:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
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+              "id": 3468,
               "nodeType": "Block",
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               "statements": [
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                     "statements": [
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                         ],
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+                            "id": 3327,
                             "mutability": "mutable",
                             "name": "tokenType",
-                            "nameLocation": "7312:9:1",
+                            "nameLocation": "7312:9:7",
                             "nodeType": "VariableDeclaration",
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-                            "src": "7302:19:1",
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+                            "src": "7302:19:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             },
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                               "nodeType": "UserDefinedTypeName",
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                                 "name": "TokenType",
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+                                "src": "7302:9:7"
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+                              "src": "7302:9:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             "visibility": "internal"
                           }
                         ],
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                         "initialValue": {
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                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "7324:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "7324:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
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                               "name": "i",
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                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2846,
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+                              "src": "7338:1:7",
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                                 "typeString": "uint32"
@@ -16687,43 +16687,43 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "7324:16:1",
+                            "src": "7324:16:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                             }
                           },
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                           "memberName": "tokenType",
                           "nodeType": "MemberAccess",
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-                          "src": "7324:26:1",
+                          "referencedDeclaration": 2695,
+                          "src": "7324:26:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7302:48:1"
+                        "src": "7302:48:7"
                       },
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+                          3334
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2865,
+                            "id": 3334,
                             "mutability": "mutable",
                             "name": "contractAddress",
-                            "nameLocation": "7372:15:1",
+                            "nameLocation": "7372:15:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2910,
-                            "src": "7364:23:1",
+                            "scope": 3379,
+                            "src": "7364:23:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -16731,10 +16731,10 @@
                               "typeString": "address"
                             },
                             "typeName": {
-                              "id": 2864,
+                              "id": 3333,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "7364:7:1",
+                              "src": "7364:7:7",
                               "stateMutability": "nonpayable",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
@@ -16744,29 +16744,29 @@
                             "visibility": "internal"
                           }
                         ],
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+                        "id": 3339,
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                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "7390:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "7390:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
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                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
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                                 "typeString": "uint32"
@@ -16777,43 +16777,43 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "7390:16:1",
+                            "src": "7390:16:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                             }
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+                          "id": 3338,
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                           "memberName": "contractAddress",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2228,
-                          "src": "7390:32:1",
+                          "referencedDeclaration": 2697,
+                          "src": "7390:32:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
                             "typeString": "address"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7364:58:1"
+                        "src": "7364:58:7"
                       },
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                         "assignments": [
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+                          3341
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                         "declarations": [
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                             "constant": false,
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+                            "id": 3341,
                             "mutability": "mutable",
                             "name": "tokenId",
-                            "nameLocation": "7444:7:1",
+                            "nameLocation": "7444:7:7",
                             "nodeType": "VariableDeclaration",
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+                            "scope": 3379,
+                            "src": "7436:15:7",
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@@ -16821,10 +16821,10 @@
                               "typeString": "uint256"
                             },
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-                              "id": 2871,
+                              "id": 3340,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "7436:7:1",
+                              "src": "7436:7:7",
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                                 "typeString": "uint256"
@@ -16833,29 +16833,29 @@
                             "visibility": "internal"
                           }
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                         "initialValue": {
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                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "7454:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "7454:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
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@@ -16866,43 +16866,43 @@
                             "isPure": false,
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                             "nodeType": "IndexAccess",
-                            "src": "7454:16:1",
+                            "src": "7454:16:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                             }
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                             "typeString": "uint256"
                           }
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                         "nodeType": "VariableDeclarationStatement",
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+                        "src": "7436:42:7"
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+                            "id": 3348,
                             "mutability": "mutable",
                             "name": "key",
-                            "nameLocation": "7500:3:1",
+                            "nameLocation": "7500:3:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2910,
-                            "src": "7492:11:1",
+                            "scope": 3379,
+                            "src": "7492:11:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -16910,10 +16910,10 @@
                               "typeString": "bytes32"
                             },
                             "typeName": {
-                              "id": 2878,
+                              "id": 3347,
                               "name": "bytes32",
                               "nodeType": "ElementaryTypeName",
-                              "src": "7492:7:1",
+                              "src": "7492:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -16922,7 +16922,7 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2904,
+                        "id": 3373,
                         "initialValue": {
                           "arguments": [
                             {
@@ -16932,14 +16932,14 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 2888,
+                                          "id": 3357,
                                           "name": "tokenType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2858,
-                                          "src": "7545:9:1",
+                                          "referencedDeclaration": 3327,
+                                          "src": "7545:9:7",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         }
@@ -16947,30 +16947,30 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         ],
-                                        "id": 2887,
+                                        "id": 3356,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "7537:7:1",
+                                        "src": "7537:7:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_uint256_$",
                                           "typeString": "type(uint256)"
                                         },
                                         "typeName": {
-                                          "id": 2886,
+                                          "id": 3355,
                                           "name": "uint256",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "7537:7:1",
+                                          "src": "7537:7:7",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 2889,
+                                      "id": 3358,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -16978,7 +16978,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "7537:18:1",
+                                      "src": "7537:18:7",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
@@ -16993,26 +16993,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 2885,
+                                    "id": 3354,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "7529:7:1",
+                                    "src": "7529:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2884,
+                                      "id": 3353,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "7529:7:1",
+                                      "src": "7529:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2890,
+                                  "id": 3359,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -17020,7 +17020,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "7529:27:1",
+                                  "src": "7529:27:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -17032,12 +17032,12 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 2895,
+                                          "id": 3364,
                                           "name": "contractAddress",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2865,
-                                          "src": "7574:15:1",
+                                          "referencedDeclaration": 3334,
+                                          "src": "7574:15:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
@@ -17051,26 +17051,26 @@
                                             "typeString": "address"
                                           }
                                         ],
-                                        "id": 2894,
+                                        "id": 3363,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "7566:7:1",
+                                        "src": "7566:7:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes20_$",
                                           "typeString": "type(bytes20)"
                                         },
                                         "typeName": {
-                                          "id": 2893,
+                                          "id": 3362,
                                           "name": "bytes20",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "7566:7:1",
+                                          "src": "7566:7:7",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 2896,
+                                      "id": 3365,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -17078,7 +17078,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "7566:24:1",
+                                      "src": "7566:24:7",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes20",
@@ -17093,26 +17093,26 @@
                                         "typeString": "bytes20"
                                       }
                                     ],
-                                    "id": 2892,
+                                    "id": 3361,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "7558:7:1",
+                                    "src": "7558:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2891,
+                                      "id": 3360,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "7558:7:1",
+                                      "src": "7558:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2897,
+                                  "id": 3366,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -17120,7 +17120,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "7558:33:1",
+                                  "src": "7558:33:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -17130,12 +17130,12 @@
                                 {
                                   "arguments": [
                                     {
-                                      "id": 2900,
+                                      "id": 3369,
                                       "name": "tokenId",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2872,
-                                      "src": "7601:7:1",
+                                      "referencedDeclaration": 3341,
+                                      "src": "7601:7:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -17149,26 +17149,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 2899,
+                                    "id": 3368,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "7593:7:1",
+                                    "src": "7593:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2898,
+                                      "id": 3367,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "7593:7:1",
+                                      "src": "7593:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2901,
+                                  "id": 3370,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -17176,7 +17176,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "7593:16:1",
+                                  "src": "7593:16:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -17200,39 +17200,39 @@
                                   }
                                 ],
                                 "expression": {
-                                  "id": 2882,
+                                  "id": 3351,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "7516:5:1",
+                                  "src": "7516:5:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                     "typeString": "type(bytes storage pointer)"
                                   },
                                   "typeName": {
-                                    "id": 2881,
+                                    "id": 3350,
                                     "name": "bytes",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "7516:5:1",
+                                    "src": "7516:5:7",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 2883,
+                                "id": 3352,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "memberName": "concat",
                                 "nodeType": "MemberAccess",
-                                "src": "7516:12:1",
+                                "src": "7516:12:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                   "typeString": "function () pure returns (bytes memory)"
                                 }
                               },
-                              "id": 2902,
+                              "id": 3371,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -17240,7 +17240,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "7516:94:1",
+                              "src": "7516:94:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_memory_ptr",
@@ -17255,18 +17255,18 @@
                                 "typeString": "bytes memory"
                               }
                             ],
-                            "id": 2880,
+                            "id": 3349,
                             "name": "keccak256",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 4294967288,
-                            "src": "7506:9:1",
+                            "src": "7506:9:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                               "typeString": "function (bytes memory) pure returns (bytes32)"
                             }
                           },
-                          "id": 2903,
+                          "id": 3372,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -17274,7 +17274,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "7506:105:1",
+                          "src": "7506:105:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
@@ -17282,11 +17282,11 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7492:119:1"
+                        "src": "7492:119:7"
                       },
                       {
                         "expression": {
-                          "id": 2908,
+                          "id": 3377,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -17294,28 +17294,28 @@
                           "nodeType": "UnaryOperation",
                           "operator": "delete",
                           "prefix": true,
-                          "src": "7625:33:1",
+                          "src": "7625:33:7",
                           "subExpression": {
                             "baseExpression": {
-                              "id": 2905,
+                              "id": 3374,
                               "name": "trackedTokenPositions",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2236,
-                              "src": "7632:21:1",
+                              "referencedDeclaration": 2705,
+                              "src": "7632:21:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                 "typeString": "mapping(bytes32 => uint256[] storage ref)"
                               }
                             },
-                            "id": 2907,
+                            "id": 3376,
                             "indexExpression": {
-                              "id": 2906,
+                              "id": 3375,
                               "name": "key",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2879,
-                              "src": "7654:3:1",
+                              "referencedDeclaration": 3348,
+                              "src": "7654:3:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -17326,7 +17326,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "7632:26:1",
+                            "src": "7632:26:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                               "typeString": "uint256[] storage ref"
@@ -17337,9 +17337,9 @@
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 2909,
+                        "id": 3378,
                         "nodeType": "ExpressionStatement",
-                        "src": "7625:33:1"
+                        "src": "7625:33:7"
                       }
                     ]
                   },
@@ -17348,18 +17348,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2852,
+                    "id": 3321,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 2849,
+                      "id": 3318,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2846,
-                      "src": "7257:1:1",
+                      "referencedDeclaration": 3315,
+                      "src": "7257:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -17369,51 +17369,51 @@
                     "operator": "<",
                     "rightExpression": {
                       "expression": {
-                        "id": 2850,
+                        "id": 3319,
                         "name": "trackedTokens",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2240,
-                        "src": "7261:13:1",
+                        "referencedDeclaration": 2709,
+                        "src": "7261:13:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                           "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                         }
                       },
-                      "id": 2851,
+                      "id": 3320,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "7261:20:1",
+                      "src": "7261:20:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "7257:24:1",
+                    "src": "7257:24:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2911,
+                  "id": 3380,
                   "initializationExpression": {
                     "assignments": [
-                      2846
+                      3315
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 2846,
+                        "id": 3315,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "7250:1:1",
+                        "nameLocation": "7250:1:7",
                         "nodeType": "VariableDeclaration",
-                        "scope": 2911,
-                        "src": "7243:8:1",
+                        "scope": 3380,
+                        "src": "7243:8:7",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -17421,10 +17421,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 2845,
+                          "id": 3314,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "7243:6:1",
+                          "src": "7243:6:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -17433,17 +17433,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2848,
+                    "id": 3317,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 2847,
+                      "id": 3316,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "7254:1:1",
+                      "src": "7254:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -17451,11 +17451,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "7243:12:1"
+                    "src": "7243:12:7"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 2854,
+                      "id": 3323,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -17463,14 +17463,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "7283:3:1",
+                      "src": "7283:3:7",
                       "subExpression": {
-                        "id": 2853,
+                        "id": 3322,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2846,
-                        "src": "7283:1:1",
+                        "referencedDeclaration": 3315,
+                        "src": "7283:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -17481,16 +17481,16 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 2855,
+                    "id": 3324,
                     "nodeType": "ExpressionStatement",
-                    "src": "7283:3:1"
+                    "src": "7283:3:7"
                   },
                   "nodeType": "ForStatement",
-                  "src": "7238:431:1"
+                  "src": "7238:431:7"
                 },
                 {
                   "expression": {
-                    "id": 2913,
+                    "id": 3382,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -17498,16 +17498,16 @@
                     "nodeType": "UnaryOperation",
                     "operator": "delete",
                     "prefix": true,
-                    "src": "7678:20:1",
+                    "src": "7678:20:7",
                     "subExpression": {
-                      "id": 2912,
+                      "id": 3381,
                       "name": "trackedTokens",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2240,
-                      "src": "7685:13:1",
+                      "referencedDeclaration": 2709,
+                      "src": "7685:13:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                         "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                       }
                     },
@@ -17516,79 +17516,79 @@
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2914,
+                  "id": 3383,
                   "nodeType": "ExpressionStatement",
-                  "src": "7678:20:1"
+                  "src": "7678:20:7"
                 },
                 {
                   "body": {
-                    "id": 2997,
+                    "id": 3466,
                     "nodeType": "Block",
-                    "src": "7761:513:1",
+                    "src": "7761:513:7",
                     "statements": [
                       {
                         "assignments": [
-                          2928
+                          3397
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2928,
+                            "id": 3397,
                             "mutability": "mutable",
                             "name": "tokenType",
-                            "nameLocation": "7785:9:1",
+                            "nameLocation": "7785:9:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2997,
-                            "src": "7775:19:1",
+                            "scope": 3466,
+                            "src": "7775:19:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             },
                             "typeName": {
-                              "id": 2927,
+                              "id": 3396,
                               "nodeType": "UserDefinedTypeName",
                               "pathNode": {
-                                "id": 2926,
+                                "id": 3395,
                                 "name": "TokenType",
                                 "nodeType": "IdentifierPath",
-                                "referencedDeclaration": 2138,
-                                "src": "7775:9:1"
+                                "referencedDeclaration": 2607,
+                                "src": "7775:9:7"
                               },
-                              "referencedDeclaration": 2138,
-                              "src": "7775:9:1",
+                              "referencedDeclaration": 2607,
+                              "src": "7775:9:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2933,
+                        "id": 3402,
                         "initialValue": {
                           "expression": {
                             "baseExpression": {
-                              "id": 2929,
+                              "id": 3398,
                               "name": "newTrackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2842,
-                              "src": "7797:16:1",
+                              "referencedDeclaration": 3311,
+                              "src": "7797:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                               }
                             },
-                            "id": 2931,
+                            "id": 3400,
                             "indexExpression": {
-                              "id": 2930,
+                              "id": 3399,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2916,
-                              "src": "7814:1:1",
+                              "referencedDeclaration": 3385,
+                              "src": "7814:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -17599,43 +17599,43 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "7797:19:1",
+                            "src": "7797:19:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                               "typeString": "struct TokenTracker.TrackedToken memory"
                             }
                           },
-                          "id": 2932,
+                          "id": 3401,
                           "isConstant": false,
                           "isLValue": true,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "tokenType",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2226,
-                          "src": "7797:29:1",
+                          "referencedDeclaration": 2695,
+                          "src": "7797:29:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7775:51:1"
+                        "src": "7775:51:7"
                       },
                       {
                         "assignments": [
-                          2935
+                          3404
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2935,
+                            "id": 3404,
                             "mutability": "mutable",
                             "name": "contractAddress",
-                            "nameLocation": "7848:15:1",
+                            "nameLocation": "7848:15:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2997,
-                            "src": "7840:23:1",
+                            "scope": 3466,
+                            "src": "7840:23:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -17643,10 +17643,10 @@
                               "typeString": "address"
                             },
                             "typeName": {
-                              "id": 2934,
+                              "id": 3403,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "7840:7:1",
+                              "src": "7840:7:7",
                               "stateMutability": "nonpayable",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
@@ -17656,29 +17656,29 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2940,
+                        "id": 3409,
                         "initialValue": {
                           "expression": {
                             "baseExpression": {
-                              "id": 2936,
+                              "id": 3405,
                               "name": "newTrackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2842,
-                              "src": "7866:16:1",
+                              "referencedDeclaration": 3311,
+                              "src": "7866:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                               }
                             },
-                            "id": 2938,
+                            "id": 3407,
                             "indexExpression": {
-                              "id": 2937,
+                              "id": 3406,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2916,
-                              "src": "7883:1:1",
+                              "referencedDeclaration": 3385,
+                              "src": "7883:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -17689,43 +17689,43 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "7866:19:1",
+                            "src": "7866:19:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                               "typeString": "struct TokenTracker.TrackedToken memory"
                             }
                           },
-                          "id": 2939,
+                          "id": 3408,
                           "isConstant": false,
                           "isLValue": true,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "contractAddress",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2228,
-                          "src": "7866:35:1",
+                          "referencedDeclaration": 2697,
+                          "src": "7866:35:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
                             "typeString": "address"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7840:61:1"
+                        "src": "7840:61:7"
                       },
                       {
                         "assignments": [
-                          2942
+                          3411
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2942,
+                            "id": 3411,
                             "mutability": "mutable",
                             "name": "tokenId",
-                            "nameLocation": "7923:7:1",
+                            "nameLocation": "7923:7:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2997,
-                            "src": "7915:15:1",
+                            "scope": 3466,
+                            "src": "7915:15:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -17733,10 +17733,10 @@
                               "typeString": "uint256"
                             },
                             "typeName": {
-                              "id": 2941,
+                              "id": 3410,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "7915:7:1",
+                              "src": "7915:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -17745,29 +17745,29 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2947,
+                        "id": 3416,
                         "initialValue": {
                           "expression": {
                             "baseExpression": {
-                              "id": 2943,
+                              "id": 3412,
                               "name": "newTrackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2842,
-                              "src": "7933:16:1",
+                              "referencedDeclaration": 3311,
+                              "src": "7933:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                               }
                             },
-                            "id": 2945,
+                            "id": 3414,
                             "indexExpression": {
-                              "id": 2944,
+                              "id": 3413,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2916,
-                              "src": "7950:1:1",
+                              "referencedDeclaration": 3385,
+                              "src": "7950:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -17778,43 +17778,43 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "7933:19:1",
+                            "src": "7933:19:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                               "typeString": "struct TokenTracker.TrackedToken memory"
                             }
                           },
-                          "id": 2946,
+                          "id": 3415,
                           "isConstant": false,
                           "isLValue": true,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "tokenId",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2230,
-                          "src": "7933:27:1",
+                          "referencedDeclaration": 2699,
+                          "src": "7933:27:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7915:45:1"
+                        "src": "7915:45:7"
                       },
                       {
                         "assignments": [
-                          2949
+                          3418
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2949,
+                            "id": 3418,
                             "mutability": "mutable",
                             "name": "key",
-                            "nameLocation": "7982:3:1",
+                            "nameLocation": "7982:3:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2997,
-                            "src": "7974:11:1",
+                            "scope": 3466,
+                            "src": "7974:11:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -17822,10 +17822,10 @@
                               "typeString": "bytes32"
                             },
                             "typeName": {
-                              "id": 2948,
+                              "id": 3417,
                               "name": "bytes32",
                               "nodeType": "ElementaryTypeName",
-                              "src": "7974:7:1",
+                              "src": "7974:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -17834,7 +17834,7 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2974,
+                        "id": 3443,
                         "initialValue": {
                           "arguments": [
                             {
@@ -17844,14 +17844,14 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 2958,
+                                          "id": 3427,
                                           "name": "tokenType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2928,
-                                          "src": "8027:9:1",
+                                          "referencedDeclaration": 3397,
+                                          "src": "8027:9:7",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         }
@@ -17859,30 +17859,30 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         ],
-                                        "id": 2957,
+                                        "id": 3426,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "8019:7:1",
+                                        "src": "8019:7:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_uint256_$",
                                           "typeString": "type(uint256)"
                                         },
                                         "typeName": {
-                                          "id": 2956,
+                                          "id": 3425,
                                           "name": "uint256",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "8019:7:1",
+                                          "src": "8019:7:7",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 2959,
+                                      "id": 3428,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -17890,7 +17890,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "8019:18:1",
+                                      "src": "8019:18:7",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
@@ -17905,26 +17905,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 2955,
+                                    "id": 3424,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "8011:7:1",
+                                    "src": "8011:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2954,
+                                      "id": 3423,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "8011:7:1",
+                                      "src": "8011:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2960,
+                                  "id": 3429,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -17932,7 +17932,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "8011:27:1",
+                                  "src": "8011:27:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -17944,12 +17944,12 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 2965,
+                                          "id": 3434,
                                           "name": "contractAddress",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2935,
-                                          "src": "8056:15:1",
+                                          "referencedDeclaration": 3404,
+                                          "src": "8056:15:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
@@ -17963,26 +17963,26 @@
                                             "typeString": "address"
                                           }
                                         ],
-                                        "id": 2964,
+                                        "id": 3433,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "8048:7:1",
+                                        "src": "8048:7:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes20_$",
                                           "typeString": "type(bytes20)"
                                         },
                                         "typeName": {
-                                          "id": 2963,
+                                          "id": 3432,
                                           "name": "bytes20",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "8048:7:1",
+                                          "src": "8048:7:7",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 2966,
+                                      "id": 3435,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -17990,7 +17990,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "8048:24:1",
+                                      "src": "8048:24:7",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes20",
@@ -18005,26 +18005,26 @@
                                         "typeString": "bytes20"
                                       }
                                     ],
-                                    "id": 2962,
+                                    "id": 3431,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "8040:7:1",
+                                    "src": "8040:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2961,
+                                      "id": 3430,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "8040:7:1",
+                                      "src": "8040:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2967,
+                                  "id": 3436,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -18032,7 +18032,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "8040:33:1",
+                                  "src": "8040:33:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -18042,12 +18042,12 @@
                                 {
                                   "arguments": [
                                     {
-                                      "id": 2970,
+                                      "id": 3439,
                                       "name": "tokenId",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2942,
-                                      "src": "8083:7:1",
+                                      "referencedDeclaration": 3411,
+                                      "src": "8083:7:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -18061,26 +18061,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 2969,
+                                    "id": 3438,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "8075:7:1",
+                                    "src": "8075:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2968,
+                                      "id": 3437,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "8075:7:1",
+                                      "src": "8075:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2971,
+                                  "id": 3440,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -18088,7 +18088,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "8075:16:1",
+                                  "src": "8075:16:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -18112,39 +18112,39 @@
                                   }
                                 ],
                                 "expression": {
-                                  "id": 2952,
+                                  "id": 3421,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "7998:5:1",
+                                  "src": "7998:5:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                     "typeString": "type(bytes storage pointer)"
                                   },
                                   "typeName": {
-                                    "id": 2951,
+                                    "id": 3420,
                                     "name": "bytes",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "7998:5:1",
+                                    "src": "7998:5:7",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 2953,
+                                "id": 3422,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "memberName": "concat",
                                 "nodeType": "MemberAccess",
-                                "src": "7998:12:1",
+                                "src": "7998:12:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                   "typeString": "function () pure returns (bytes memory)"
                                 }
                               },
-                              "id": 2972,
+                              "id": 3441,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -18152,7 +18152,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "7998:94:1",
+                              "src": "7998:94:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_memory_ptr",
@@ -18167,18 +18167,18 @@
                                 "typeString": "bytes memory"
                               }
                             ],
-                            "id": 2950,
+                            "id": 3419,
                             "name": "keccak256",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 4294967288,
-                            "src": "7988:9:1",
+                            "src": "7988:9:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                               "typeString": "function (bytes memory) pure returns (bytes32)"
                             }
                           },
-                          "id": 2973,
+                          "id": 3442,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -18186,7 +18186,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "7988:105:1",
+                          "src": "7988:105:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
@@ -18194,82 +18194,82 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7974:119:1"
+                        "src": "7974:119:7"
                       },
                       {
                         "assignments": [
-                          2977
+                          3446
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2977,
+                            "id": 3446,
                             "mutability": "mutable",
                             "name": "t",
-                            "nameLocation": "8127:1:1",
+                            "nameLocation": "8127:1:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2997,
-                            "src": "8107:21:1",
+                            "scope": 3466,
+                            "src": "8107:21:7",
                             "stateVariable": false,
                             "storageLocation": "memory",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                               "typeString": "struct TokenTracker.TrackedToken"
                             },
                             "typeName": {
-                              "id": 2976,
+                              "id": 3445,
                               "nodeType": "UserDefinedTypeName",
                               "pathNode": {
-                                "id": 2975,
+                                "id": 3444,
                                 "name": "TrackedToken",
                                 "nodeType": "IdentifierPath",
-                                "referencedDeclaration": 2231,
-                                "src": "8107:12:1"
+                                "referencedDeclaration": 2700,
+                                "src": "8107:12:7"
                               },
-                              "referencedDeclaration": 2231,
-                              "src": "8107:12:1",
+                              "referencedDeclaration": 2700,
+                              "src": "8107:12:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage_ptr",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken"
                               }
                             },
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2983,
+                        "id": 3452,
                         "initialValue": {
                           "arguments": [
                             {
-                              "id": 2979,
+                              "id": 3448,
                               "name": "tokenType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2928,
-                              "src": "8144:9:1",
+                              "referencedDeclaration": 3397,
+                              "src": "8144:9:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             {
-                              "id": 2980,
+                              "id": 3449,
                               "name": "contractAddress",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2935,
-                              "src": "8155:15:1",
+                              "referencedDeclaration": 3404,
+                              "src": "8155:15:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
                                 "typeString": "address"
                               }
                             },
                             {
-                              "id": 2981,
+                              "id": 3450,
                               "name": "tokenId",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2942,
-                              "src": "8172:7:1",
+                              "referencedDeclaration": 3411,
+                              "src": "8172:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -18279,7 +18279,7 @@
                           "expression": {
                             "argumentTypes": [
                               {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               },
                               {
@@ -18291,18 +18291,18 @@
                                 "typeString": "uint256"
                               }
                             ],
-                            "id": 2978,
+                            "id": 3447,
                             "name": "TrackedToken",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2231,
-                            "src": "8131:12:1",
+                            "referencedDeclaration": 2700,
+                            "src": "8131:12:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_struct$_TrackedToken_$2231_storage_ptr_$",
+                              "typeIdentifier": "t_type$_t_struct$_TrackedToken_$2700_storage_ptr_$",
                               "typeString": "type(struct TokenTracker.TrackedToken storage pointer)"
                             }
                           },
-                          "id": 2982,
+                          "id": 3451,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -18310,28 +18310,28 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "8131:49:1",
+                          "src": "8131:49:7",
                           "tryCall": false,
                           "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                            "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                             "typeString": "struct TokenTracker.TrackedToken memory"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "8107:73:1"
+                        "src": "8107:73:7"
                       },
                       {
                         "expression": {
                           "arguments": [
                             {
-                              "id": 2987,
+                              "id": 3456,
                               "name": "t",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2977,
-                              "src": "8213:1:1",
+                              "referencedDeclaration": 3446,
+                              "src": "8213:1:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken memory"
                               }
                             }
@@ -18339,36 +18339,36 @@
                           "expression": {
                             "argumentTypes": [
                               {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken memory"
                               }
                             ],
                             "expression": {
-                              "id": 2984,
+                              "id": 3453,
                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "8194:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "8194:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
-                            "id": 2986,
+                            "id": 3455,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "push",
                             "nodeType": "MemberAccess",
-                            "src": "8194:18:1",
+                            "src": "8194:18:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr_$_t_struct$_TrackedToken_$2231_storage_$returns$__$bound_to$_t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr_$",
+                              "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr_$_t_struct$_TrackedToken_$2700_storage_$returns$__$bound_to$_t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr_$",
                               "typeString": "function (struct TokenTracker.TrackedToken storage ref[] storage pointer,struct TokenTracker.TrackedToken storage ref)"
                             }
                           },
-                          "id": 2988,
+                          "id": 3457,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -18376,27 +18376,27 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "8194:21:1",
+                          "src": "8194:21:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
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+                        "id": 3458,
                         "nodeType": "ExpressionStatement",
-                        "src": "8194:21:1"
+                        "src": "8194:21:7"
                       },
                       {
                         "expression": {
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                             {
-                              "id": 2994,
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                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2916,
-                              "src": "8261:1:1",
+                              "referencedDeclaration": 3385,
+                              "src": "8261:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -18412,25 +18412,25 @@
                             ],
                             "expression": {
                               "baseExpression": {
-                                "id": 2990,
+                                "id": 3459,
                                 "name": "trackedTokenPositions",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2236,
-                                "src": "8229:21:1",
+                                "referencedDeclaration": 2705,
+                                "src": "8229:21:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                   "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                 }
                               },
-                              "id": 2992,
+                              "id": 3461,
                               "indexExpression": {
-                                "id": 2991,
+                                "id": 3460,
                                 "name": "key",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2949,
-                                "src": "8251:3:1",
+                                "referencedDeclaration": 3418,
+                                "src": "8251:3:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -18441,26 +18441,26 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "8229:26:1",
+                              "src": "8229:26:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                 "typeString": "uint256[] storage ref"
                               }
                             },
-                            "id": 2993,
+                            "id": 3462,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "push",
                             "nodeType": "MemberAccess",
-                            "src": "8229:31:1",
+                            "src": "8229:31:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_uint256_$dyn_storage_ptr_$_t_uint256_$returns$__$bound_to$_t_array$_t_uint256_$dyn_storage_ptr_$",
                               "typeString": "function (uint256[] storage pointer,uint256)"
                             }
                           },
-                          "id": 2995,
+                          "id": 3464,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -18468,16 +18468,16 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "8229:34:1",
+                          "src": "8229:34:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 2996,
+                        "id": 3465,
                         "nodeType": "ExpressionStatement",
-                        "src": "8229:34:1"
+                        "src": "8229:34:7"
                       }
                     ]
                   },
@@ -18486,18 +18486,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2922,
+                    "id": 3391,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 2919,
+                      "id": 3388,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2916,
-                      "src": "7727:1:1",
+                      "referencedDeclaration": 3385,
+                      "src": "7727:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -18507,51 +18507,51 @@
                     "operator": "<",
                     "rightExpression": {
                       "expression": {
-                        "id": 2920,
+                        "id": 3389,
                         "name": "newTrackedTokens",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2842,
-                        "src": "7731:16:1",
+                        "referencedDeclaration": 3311,
+                        "src": "7731:16:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                           "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                         }
                       },
-                      "id": 2921,
+                      "id": 3390,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "7731:23:1",
+                      "src": "7731:23:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "7727:27:1",
+                    "src": "7727:27:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2998,
+                  "id": 3467,
                   "initializationExpression": {
                     "assignments": [
-                      2916
+                      3385
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 2916,
+                        "id": 3385,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "7720:1:1",
+                        "nameLocation": "7720:1:7",
                         "nodeType": "VariableDeclaration",
-                        "scope": 2998,
-                        "src": "7713:8:1",
+                        "scope": 3467,
+                        "src": "7713:8:7",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -18559,10 +18559,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 2915,
+                          "id": 3384,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "7713:6:1",
+                          "src": "7713:6:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -18571,17 +18571,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2918,
+                    "id": 3387,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 2917,
+                      "id": 3386,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "7724:1:1",
+                      "src": "7724:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -18589,11 +18589,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "7713:12:1"
+                    "src": "7713:12:7"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 2924,
+                      "id": 3393,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -18601,14 +18601,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "7756:3:1",
+                      "src": "7756:3:7",
                       "subExpression": {
-                        "id": 2923,
+                        "id": 3392,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2916,
-                        "src": "7756:1:1",
+                        "referencedDeclaration": 3385,
+                        "src": "7756:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -18619,104 +18619,104 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 2925,
+                    "id": 3394,
                     "nodeType": "ExpressionStatement",
-                    "src": "7756:3:1"
+                    "src": "7756:3:7"
                   },
                   "nodeType": "ForStatement",
-                  "src": "7708:566:1"
+                  "src": "7708:566:7"
                 }
               ]
             },
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+            "id": 3469,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_overrideTrack",
-            "nameLocation": "7164:14:1",
+            "nameLocation": "7164:14:7",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2843,
+              "id": 3312,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2842,
+                  "id": 3311,
                   "mutability": "mutable",
                   "name": "newTrackedTokens",
-                  "nameLocation": "7201:16:1",
+                  "nameLocation": "7201:16:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 3000,
-                  "src": "7179:38:1",
+                  "scope": 3469,
+                  "src": "7179:38:7",
                   "stateVariable": false,
                   "storageLocation": "memory",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                    "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                     "typeString": "struct TokenTracker.TrackedToken[]"
                   },
                   "typeName": {
                     "baseType": {
-                      "id": 2840,
+                      "id": 3309,
                       "nodeType": "UserDefinedTypeName",
                       "pathNode": {
-                        "id": 2839,
+                        "id": 3308,
                         "name": "TrackedToken",
                         "nodeType": "IdentifierPath",
-                        "referencedDeclaration": 2231,
-                        "src": "7179:12:1"
+                        "referencedDeclaration": 2700,
+                        "src": "7179:12:7"
                       },
-                      "referencedDeclaration": 2231,
-                      "src": "7179:12:1",
+                      "referencedDeclaration": 2700,
+                      "src": "7179:12:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_struct$_TrackedToken_$2231_storage_ptr",
+                        "typeIdentifier": "t_struct$_TrackedToken_$2700_storage_ptr",
                         "typeString": "struct TokenTracker.TrackedToken"
                       }
                     },
-                    "id": 2841,
+                    "id": 3310,
                     "nodeType": "ArrayTypeName",
-                    "src": "7179:14:1",
+                    "src": "7179:14:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr",
+                      "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr",
                       "typeString": "struct TokenTracker.TrackedToken[]"
                     }
                   },
                   "visibility": "internal"
                 }
               ],
-              "src": "7178:40:1"
+              "src": "7178:40:7"
             },
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+              "id": 3313,
               "nodeType": "ParameterList",
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-              "src": "7228:0:1"
+              "src": "7228:0:7"
             },
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-            "src": "7155:1125:1",
+            "scope": 3860,
+            "src": "7155:1125:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 3127,
+              "id": 3596,
               "nodeType": "Block",
-              "src": "8349:690:1",
+              "src": "8349:690:7",
               "statements": [
                 {
                   "assignments": [
-                    3006
+                    3475
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 3006,
+                      "id": 3475,
                       "mutability": "mutable",
                       "name": "numTokens",
-                      "nameLocation": "8366:9:1",
+                      "nameLocation": "8366:9:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 3127,
-                      "src": "8359:16:1",
+                      "scope": 3596,
+                      "src": "8359:16:7",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -18724,10 +18724,10 @@
                         "typeString": "uint32"
                       },
                       "typeName": {
-                        "id": 3005,
+                        "id": 3474,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "8359:6:1",
+                        "src": "8359:6:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -18736,7 +18736,7 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 3014,
+                  "id": 3483,
                   "initialValue": {
                     "arguments": [
                       {
@@ -18744,32 +18744,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 3012,
+                        "id": 3481,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 3009,
+                            "id": 3478,
                             "name": "data",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 3002,
-                            "src": "8385:4:1",
+                            "referencedDeclaration": 3471,
+                            "src": "8385:4:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes_calldata_ptr",
                               "typeString": "bytes calldata"
                             }
                           },
-                          "id": 3010,
+                          "id": 3479,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "8385:11:1",
+                          "src": "8385:11:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -18779,21 +18779,21 @@
                         "operator": "/",
                         "rightExpression": {
                           "hexValue": "3936",
-                          "id": 3011,
+                          "id": 3480,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "number",
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                           "nodeType": "Literal",
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+                          "src": "8399:2:7",
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                             "typeIdentifier": "t_rational_96_by_1",
                             "typeString": "int_const 96"
                           },
                           "value": "96"
                         },
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+                        "src": "8385:16:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -18807,26 +18807,26 @@
                           "typeString": "uint256"
                         }
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                         "typeString": "type(uint32)"
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+                        "id": 3476,
                         "name": "uint32",
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@@ -18834,7 +18834,7 @@
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                     "nodeType": "FunctionCall",
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@@ -18842,7 +18842,7 @@
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@@ -18852,7 +18852,7 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
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+                        "id": 3490,
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@@ -18862,18 +18862,18 @@
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
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-                            "src": "8420:9:1",
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                               "typeString": "uint32"
@@ -18883,21 +18883,21 @@
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                           "rightExpression": {
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-                            "src": "8432:2:1",
+                            "src": "8432:2:7",
                             "typeDescriptions": {
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                               "typeString": "int_const 96"
                             },
                             "value": "96"
                           },
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+                          "src": "8420:14:7",
                           "typeDescriptions": {
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                             "typeString": "uint32"
@@ -18907,31 +18907,31 @@
                         "operator": "==",
                         "rightExpression": {
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                             "typeDescriptions": {
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                               "typeString": "bytes calldata"
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                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "8438:11:1",
+                          "src": "8438:11:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
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-                        "src": "8420:29:1",
+                        "src": "8420:29:7",
                         "typeDescriptions": {
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                           "typeString": "bool"
@@ -18939,14 +18939,14 @@
                       },
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                         "lValueRequested": false,
                         "nodeType": "Literal",
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                           "typeString": "literal_string \"data must have length multiple to 96\""
@@ -18965,7 +18965,7 @@
                           "typeString": "literal_string \"data must have length multiple to 96\""
                         }
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@@ -18973,13 +18973,13 @@
                         4294967278
                       ],
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                         "typeString": "function (bool,string memory) pure"
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@@ -18987,76 +18987,76 @@
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                       "storageLocation": "memory",
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-                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                         "typeString": "struct TokenTracker.TrackedToken[]"
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                           "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_TrackedToken_$2231_storage_ptr",
+                            "typeIdentifier": "t_struct$_TrackedToken_$2700_storage_ptr",
                             "typeString": "struct TokenTracker.TrackedToken"
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+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr",
                           "typeString": "struct TokenTracker.TrackedToken[]"
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                           "typeString": "uint32"
@@ -19070,45 +19070,45 @@
                           "typeString": "uint32"
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+                        "typeIdentifier": "t_function_objectcreation_pure$_t_uint256_$returns$_t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr_$",
                         "typeString": "function (uint256) pure returns (struct TokenTracker.TrackedToken memory[] memory)"
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+                            "typeIdentifier": "t_struct$_TrackedToken_$2700_storage_ptr",
                             "typeString": "struct TokenTracker.TrackedToken"
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                         "typeDescriptions": {
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+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr",
                           "typeString": "struct TokenTracker.TrackedToken[]"
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@@ -19116,63 +19116,63 @@
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+                      "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                       "typeString": "struct TokenTracker.TrackedToken memory[] memory"
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                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
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                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
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                             "visibility": "internal"
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@@ -19181,12 +19181,12 @@
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                                     {
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@@ -19197,7 +19197,7 @@
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
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@@ -19207,18 +19207,18 @@
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                                             "typeString": "uint32"
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@@ -19228,21 +19228,21 @@
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+                                            "src": "8701:2:7",
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                                               "typeString": "int_const 96"
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+                                          "src": "8697:6:7",
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@@ -19252,50 +19252,50 @@
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                                             "typeString": "int_const 32"
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                                           "value": "32"
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+                                        "src": "8697:11:7",
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                                           "typeString": "uint32"
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                                           "typeString": "uint32"
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@@ -19305,21 +19305,21 @@
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                                             "typeString": "int_const 96"
                                           },
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+                                        "src": "8688:6:7",
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@@ -19338,18 +19338,18 @@
                                         "typeString": "bytes calldata slice"
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                                       "typeString": "function (bytes memory) pure returns (bytes32)"
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@@ -19357,7 +19357,7 @@
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@@ -19372,26 +19372,26 @@
                                     "typeString": "bytes32"
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                                 "nodeType": "ElementaryTypeNameExpression",
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+                                "src": "8665:7:7",
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                                   "typeString": "type(uint256)"
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+                                  "id": 3520,
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@@ -19399,7 +19399,7 @@
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@@ -19414,18 +19414,18 @@
                                 "typeString": "uint256"
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+                            "src": "8655:9:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2138_$",
+                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                               "typeString": "type(enum TokenTracker.TokenType)"
                             }
                           },
-                          "id": 3066,
+                          "id": 3535,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -19433,30 +19433,30 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "8655:57:1",
+                          "src": "8655:57:7",
                           "tryCall": false,
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "8633:79:1"
+                        "src": "8633:79:7"
                       },
                       {
                         "assignments": [
-                          3069
+                          3538
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 3069,
+                            "id": 3538,
                             "mutability": "mutable",
                             "name": "contractAddress",
-                            "nameLocation": "8734:15:1",
+                            "nameLocation": "8734:15:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 3121,
-                            "src": "8726:23:1",
+                            "scope": 3590,
+                            "src": "8726:23:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -19464,10 +19464,10 @@
                               "typeString": "address"
                             },
                             "typeName": {
-                              "id": 3068,
+                              "id": 3537,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "8726:7:1",
+                              "src": "8726:7:7",
                               "stateMutability": "nonpayable",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
@@ -19477,7 +19477,7 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 3090,
+                        "id": 3559,
                         "initialValue": {
                           "arguments": [
                             {
@@ -19486,12 +19486,12 @@
                                   "arguments": [
                                     {
                                       "baseExpression": {
-                                        "id": 3075,
+                                        "id": 3544,
                                         "name": "data",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3002,
-                                        "src": "8778:4:1",
+                                        "referencedDeclaration": 3471,
+                                        "src": "8778:4:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes_calldata_ptr",
                                           "typeString": "bytes calldata"
@@ -19502,7 +19502,7 @@
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
-                                        "id": 3085,
+                                        "id": 3554,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -19512,18 +19512,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
-                                          "id": 3083,
+                                          "id": 3552,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "leftExpression": {
-                                            "id": 3081,
+                                            "id": 3550,
                                             "name": "i",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 3038,
-                                            "src": "8797:1:1",
+                                            "referencedDeclaration": 3507,
+                                            "src": "8797:1:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint32",
                                               "typeString": "uint32"
@@ -19533,21 +19533,21 @@
                                           "operator": "*",
                                           "rightExpression": {
                                             "hexValue": "3936",
-                                            "id": 3082,
+                                            "id": 3551,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": true,
                                             "kind": "number",
                                             "lValueRequested": false,
                                             "nodeType": "Literal",
-                                            "src": "8801:2:1",
+                                            "src": "8801:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
-                                          "src": "8797:6:1",
+                                          "src": "8797:6:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -19557,39 +19557,39 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3532",
-                                          "id": 3084,
+                                          "id": 3553,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "8806:2:1",
+                                          "src": "8806:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_52_by_1",
                                             "typeString": "int_const 52"
                                           },
                                           "value": "52"
                                         },
-                                        "src": "8797:11:1",
+                                        "src": "8797:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         }
                                       },
-                                      "id": 3086,
+                                      "id": 3555,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "nodeType": "IndexRangeAccess",
-                                      "src": "8778:31:1",
+                                      "src": "8778:31:7",
                                       "startExpression": {
                                         "commonType": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
-                                        "id": 3080,
+                                        "id": 3549,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -19599,18 +19599,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
-                                          "id": 3078,
+                                          "id": 3547,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "leftExpression": {
-                                            "id": 3076,
+                                            "id": 3545,
                                             "name": "i",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 3038,
-                                            "src": "8783:1:1",
+                                            "referencedDeclaration": 3507,
+                                            "src": "8783:1:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint32",
                                               "typeString": "uint32"
@@ -19620,21 +19620,21 @@
                                           "operator": "*",
                                           "rightExpression": {
                                             "hexValue": "3936",
-                                            "id": 3077,
+                                            "id": 3546,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": true,
                                             "kind": "number",
                                             "lValueRequested": false,
                                             "nodeType": "Literal",
-                                            "src": "8787:2:1",
+                                            "src": "8787:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
-                                          "src": "8783:6:1",
+                                          "src": "8783:6:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -19644,21 +19644,21 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3332",
-                                          "id": 3079,
+                                          "id": 3548,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "8792:2:1",
+                                          "src": "8792:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_32_by_1",
                                             "typeString": "int_const 32"
                                           },
                                           "value": "32"
                                         },
-                                        "src": "8783:11:1",
+                                        "src": "8783:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -19677,18 +19677,18 @@
                                         "typeString": "bytes calldata slice"
                                       }
                                     ],
-                                    "id": 3074,
+                                    "id": 3543,
                                     "name": "_asByte32",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3390,
-                                    "src": "8768:9:1",
+                                    "referencedDeclaration": 3859,
+                                    "src": "8768:9:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                       "typeString": "function (bytes memory) pure returns (bytes32)"
                                     }
                                   },
-                                  "id": 3087,
+                                  "id": 3556,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -19696,7 +19696,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "8768:42:1",
+                                  "src": "8768:42:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -19711,26 +19711,26 @@
                                     "typeString": "bytes32"
                                   }
                                 ],
-                                "id": 3073,
+                                "id": 3542,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
                                 "lValueRequested": false,
                                 "nodeType": "ElementaryTypeNameExpression",
-                                "src": "8760:7:1",
+                                "src": "8760:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_type$_t_bytes20_$",
                                   "typeString": "type(bytes20)"
                                 },
                                 "typeName": {
-                                  "id": 3072,
+                                  "id": 3541,
                                   "name": "bytes20",
                                   "nodeType": "ElementaryTypeName",
-                                  "src": "8760:7:1",
+                                  "src": "8760:7:7",
                                   "typeDescriptions": {}
                                 }
                               },
-                              "id": 3088,
+                              "id": 3557,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -19738,7 +19738,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "8760:51:1",
+                              "src": "8760:51:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes20",
@@ -19753,26 +19753,26 @@
                                 "typeString": "bytes20"
                               }
                             ],
-                            "id": 3071,
+                            "id": 3540,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "8752:7:1",
+                            "src": "8752:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_address_$",
                               "typeString": "type(address)"
                             },
                             "typeName": {
-                              "id": 3070,
+                              "id": 3539,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "8752:7:1",
+                              "src": "8752:7:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 3089,
+                          "id": 3558,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -19780,7 +19780,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "8752:60:1",
+                          "src": "8752:60:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
@@ -19788,22 +19788,22 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "8726:86:1"
+                        "src": "8726:86:7"
                       },
                       {
                         "assignments": [
-                          3092
+                          3561
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 3092,
+                            "id": 3561,
                             "mutability": "mutable",
                             "name": "tokenId",
-                            "nameLocation": "8834:7:1",
+                            "nameLocation": "8834:7:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 3121,
-                            "src": "8826:15:1",
+                            "scope": 3590,
+                            "src": "8826:15:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -19811,10 +19811,10 @@
                               "typeString": "uint256"
                             },
                             "typeName": {
-                              "id": 3091,
+                              "id": 3560,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "8826:7:1",
+                              "src": "8826:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -19823,19 +19823,19 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 3110,
+                        "id": 3579,
                         "initialValue": {
                           "arguments": [
                             {
                               "arguments": [
                                 {
                                   "baseExpression": {
-                                    "id": 3096,
+                                    "id": 3565,
                                     "name": "data",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3002,
-                                    "src": "8862:4:1",
+                                    "referencedDeclaration": 3471,
+                                    "src": "8862:4:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -19846,7 +19846,7 @@
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     },
-                                    "id": 3106,
+                                    "id": 3575,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -19856,18 +19856,18 @@
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
                                       },
-                                      "id": 3104,
+                                      "id": 3573,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "leftExpression": {
-                                        "id": 3102,
+                                        "id": 3571,
                                         "name": "i",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3038,
-                                        "src": "8881:1:1",
+                                        "referencedDeclaration": 3507,
+                                        "src": "8881:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -19877,21 +19877,21 @@
                                       "operator": "*",
                                       "rightExpression": {
                                         "hexValue": "3936",
-                                        "id": 3103,
+                                        "id": 3572,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "kind": "number",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "8885:2:1",
+                                        "src": "8885:2:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_rational_96_by_1",
                                           "typeString": "int_const 96"
                                         },
                                         "value": "96"
                                       },
-                                      "src": "8881:6:1",
+                                      "src": "8881:6:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
@@ -19901,39 +19901,39 @@
                                     "operator": "+",
                                     "rightExpression": {
                                       "hexValue": "3936",
-                                      "id": 3105,
+                                      "id": 3574,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "kind": "number",
                                       "lValueRequested": false,
                                       "nodeType": "Literal",
-                                      "src": "8890:2:1",
+                                      "src": "8890:2:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_rational_96_by_1",
                                         "typeString": "int_const 96"
                                       },
                                       "value": "96"
                                     },
-                                    "src": "8881:11:1",
+                                    "src": "8881:11:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     }
                                   },
-                                  "id": 3107,
+                                  "id": 3576,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "nodeType": "IndexRangeAccess",
-                                  "src": "8862:31:1",
+                                  "src": "8862:31:7",
                                   "startExpression": {
                                     "commonType": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     },
-                                    "id": 3101,
+                                    "id": 3570,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -19943,18 +19943,18 @@
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
                                       },
-                                      "id": 3099,
+                                      "id": 3568,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "leftExpression": {
-                                        "id": 3097,
+                                        "id": 3566,
                                         "name": "i",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3038,
-                                        "src": "8867:1:1",
+                                        "referencedDeclaration": 3507,
+                                        "src": "8867:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -19964,21 +19964,21 @@
                                       "operator": "*",
                                       "rightExpression": {
                                         "hexValue": "3936",
-                                        "id": 3098,
+                                        "id": 3567,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "kind": "number",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "8871:2:1",
+                                        "src": "8871:2:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_rational_96_by_1",
                                           "typeString": "int_const 96"
                                         },
                                         "value": "96"
                                       },
-                                      "src": "8867:6:1",
+                                      "src": "8867:6:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
@@ -19988,21 +19988,21 @@
                                     "operator": "+",
                                     "rightExpression": {
                                       "hexValue": "3634",
-                                      "id": 3100,
+                                      "id": 3569,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "kind": "number",
                                       "lValueRequested": false,
                                       "nodeType": "Literal",
-                                      "src": "8876:2:1",
+                                      "src": "8876:2:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_rational_64_by_1",
                                         "typeString": "int_const 64"
                                       },
                                       "value": "64"
                                     },
-                                    "src": "8867:11:1",
+                                    "src": "8867:11:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
@@ -20021,18 +20021,18 @@
                                     "typeString": "bytes calldata slice"
                                   }
                                 ],
-                                "id": 3095,
+                                "id": 3564,
                                 "name": "_asByte32",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3390,
-                                "src": "8852:9:1",
+                                "referencedDeclaration": 3859,
+                                "src": "8852:9:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                   "typeString": "function (bytes memory) pure returns (bytes32)"
                                 }
                               },
-                              "id": 3108,
+                              "id": 3577,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -20040,7 +20040,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "8852:42:1",
+                              "src": "8852:42:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
@@ -20055,26 +20055,26 @@
                                 "typeString": "bytes32"
                               }
                             ],
-                            "id": 3094,
+                            "id": 3563,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "8844:7:1",
+                            "src": "8844:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_uint256_$",
                               "typeString": "type(uint256)"
                             },
                             "typeName": {
-                              "id": 3093,
+                              "id": 3562,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "8844:7:1",
+                              "src": "8844:7:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 3109,
+                          "id": 3578,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -20082,7 +20082,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "8844:51:1",
+                          "src": "8844:51:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
@@ -20090,36 +20090,36 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "8826:69:1"
+                        "src": "8826:69:7"
                       },
                       {
                         "expression": {
-                          "id": 3119,
+                          "id": 3588,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
                             "baseExpression": {
-                              "id": 3111,
+                              "id": 3580,
                               "name": "newTrackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3029,
-                              "src": "8909:16:1",
+                              "referencedDeclaration": 3498,
+                              "src": "8909:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                               }
                             },
-                            "id": 3113,
+                            "id": 3582,
                             "indexExpression": {
-                              "id": 3112,
+                              "id": 3581,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3038,
-                              "src": "8926:1:1",
+                              "referencedDeclaration": 3507,
+                              "src": "8926:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -20130,9 +20130,9 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "8909:19:1",
+                            "src": "8909:19:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                               "typeString": "struct TokenTracker.TrackedToken memory"
                             }
                           },
@@ -20141,36 +20141,36 @@
                           "rightHandSide": {
                             "arguments": [
                               {
-                                "id": 3115,
+                                "id": 3584,
                                 "name": "tokenType",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3049,
-                                "src": "8944:9:1",
+                                "referencedDeclaration": 3518,
+                                "src": "8944:9:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_enum$_TokenType_$2138",
+                                  "typeIdentifier": "t_enum$_TokenType_$2607",
                                   "typeString": "enum TokenTracker.TokenType"
                                 }
                               },
                               {
-                                "id": 3116,
+                                "id": 3585,
                                 "name": "contractAddress",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3069,
-                                "src": "8955:15:1",
+                                "referencedDeclaration": 3538,
+                                "src": "8955:15:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_address",
                                   "typeString": "address"
                                 }
                               },
                               {
-                                "id": 3117,
+                                "id": 3586,
                                 "name": "tokenId",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3092,
-                                "src": "8972:7:1",
+                                "referencedDeclaration": 3561,
+                                "src": "8972:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -20180,7 +20180,7 @@
                             "expression": {
                               "argumentTypes": [
                                 {
-                                  "typeIdentifier": "t_enum$_TokenType_$2138",
+                                  "typeIdentifier": "t_enum$_TokenType_$2607",
                                   "typeString": "enum TokenTracker.TokenType"
                                 },
                                 {
@@ -20192,18 +20192,18 @@
                                   "typeString": "uint256"
                                 }
                               ],
-                              "id": 3114,
+                              "id": 3583,
                               "name": "TrackedToken",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2231,
-                              "src": "8931:12:1",
+                              "referencedDeclaration": 2700,
+                              "src": "8931:12:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_type$_t_struct$_TrackedToken_$2231_storage_ptr_$",
+                                "typeIdentifier": "t_type$_t_struct$_TrackedToken_$2700_storage_ptr_$",
                                 "typeString": "type(struct TokenTracker.TrackedToken storage pointer)"
                               }
                             },
-                            "id": 3118,
+                            "id": 3587,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -20211,22 +20211,22 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "8931:49:1",
+                            "src": "8931:49:7",
                             "tryCall": false,
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                               "typeString": "struct TokenTracker.TrackedToken memory"
                             }
                           },
-                          "src": "8909:71:1",
+                          "src": "8909:71:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                            "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                             "typeString": "struct TokenTracker.TrackedToken memory"
                           }
                         },
-                        "id": 3120,
+                        "id": 3589,
                         "nodeType": "ExpressionStatement",
-                        "src": "8909:71:1"
+                        "src": "8909:71:7"
                       }
                     ]
                   },
@@ -20235,18 +20235,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
-                    "id": 3043,
+                    "id": 3512,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
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+                      "id": 3510,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 3038,
-                      "src": "8599:1:1",
+                      "referencedDeclaration": 3507,
+                      "src": "8599:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -20255,38 +20255,38 @@
                     "nodeType": "BinaryOperation",
                     "operator": "<",
                     "rightExpression": {
-                      "id": 3042,
+                      "id": 3511,
                       "name": "numTokens",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 3006,
-                      "src": "8603:9:1",
+                      "referencedDeclaration": 3475,
+                      "src": "8603:9:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "8599:13:1",
+                    "src": "8599:13:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 3122,
+                  "id": 3591,
                   "initializationExpression": {
                     "assignments": [
-                      3038
+                      3507
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 3038,
+                        "id": 3507,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "8592:1:1",
+                        "nameLocation": "8592:1:7",
                         "nodeType": "VariableDeclaration",
-                        "scope": 3122,
-                        "src": "8585:8:1",
+                        "scope": 3591,
+                        "src": "8585:8:7",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -20294,10 +20294,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 3037,
+                          "id": 3506,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "8585:6:1",
+                          "src": "8585:6:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -20306,17 +20306,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 3040,
+                    "id": 3509,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 3039,
+                      "id": 3508,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "8596:1:1",
+                      "src": "8596:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -20324,11 +20324,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "8585:12:1"
+                    "src": "8585:12:7"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 3045,
+                      "id": 3514,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -20336,14 +20336,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "8614:3:1",
+                      "src": "8614:3:7",
                       "subExpression": {
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+                        "id": 3513,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 3038,
-                        "src": "8614:1:1",
+                        "referencedDeclaration": 3507,
+                        "src": "8614:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -20354,25 +20354,25 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 3046,
+                    "id": 3515,
                     "nodeType": "ExpressionStatement",
-                    "src": "8614:3:1"
+                    "src": "8614:3:7"
                   },
                   "nodeType": "ForStatement",
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+                  "src": "8580:411:7"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
-                        "id": 3124,
+                        "id": 3593,
                         "name": "newTrackedTokens",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 3029,
-                        "src": "9015:16:1",
+                        "referencedDeclaration": 3498,
+                        "src": "9015:16:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                           "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                         }
                       }
@@ -20380,22 +20380,22 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                           "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                         }
                       ],
-                      "id": 3123,
+                      "id": 3592,
                       "name": "_overrideTrack",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 3000,
-                      "src": "9000:14:1",
+                      "referencedDeclaration": 3469,
+                      "src": "9000:14:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_nonpayable$_t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr_$returns$__$",
+                        "typeIdentifier": "t_function_internal_nonpayable$_t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr_$returns$__$",
                         "typeString": "function (struct TokenTracker.TrackedToken memory[] memory)"
                       }
                     },
-                    "id": 3125,
+                    "id": 3594,
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                     "isLValue": false,
                     "isPure": false,
@@ -20403,39 +20403,39 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "9000:32:1",
+                    "src": "9000:32:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 3126,
+                  "id": 3595,
                   "nodeType": "ExpressionStatement",
-                  "src": "9000:32:1"
+                  "src": "9000:32:7"
                 }
               ]
             },
-            "id": 3128,
+            "id": 3597,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_overrideTrackWithBytes",
-            "nameLocation": "8295:23:1",
+            "nameLocation": "8295:23:7",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 3003,
+              "id": 3472,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 3002,
+                  "id": 3471,
                   "mutability": "mutable",
                   "name": "data",
-                  "nameLocation": "8334:4:1",
+                  "nameLocation": "8334:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 3128,
-                  "src": "8319:19:1",
+                  "scope": 3597,
+                  "src": "8319:19:7",
                   "stateVariable": false,
                   "storageLocation": "calldata",
                   "typeDescriptions": {
@@ -20443,10 +20443,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 3001,
+                    "id": 3470,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "8319:5:1",
+                    "src": "8319:5:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -20455,40 +20455,40 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "8318:21:1"
+              "src": "8318:21:7"
             },
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               "nodeType": "ParameterList",
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-              "src": "8349:0:1"
+              "src": "8349:0:7"
             },
-            "scope": 3391,
-            "src": "8286:753:1",
+            "scope": 3860,
+            "src": "8286:753:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 3235,
+              "id": 3704,
               "nodeType": "Block",
-              "src": "9096:545:1",
+              "src": "9096:545:7",
               "statements": [
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+                    3603
                   ],
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                     {
                       "constant": false,
-                      "id": 3134,
+                      "id": 3603,
                       "mutability": "mutable",
                       "name": "numTokens",
-                      "nameLocation": "9113:9:1",
+                      "nameLocation": "9113:9:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 3235,
-                      "src": "9106:16:1",
+                      "scope": 3704,
+                      "src": "9106:16:7",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -20496,10 +20496,10 @@
                         "typeString": "uint32"
                       },
                       "typeName": {
-                        "id": 3133,
+                        "id": 3602,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "9106:6:1",
+                        "src": "9106:6:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -20508,7 +20508,7 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 3142,
+                  "id": 3611,
                   "initialValue": {
                     "arguments": [
                       {
@@ -20516,32 +20516,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 3140,
+                        "id": 3609,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 3137,
+                            "id": 3606,
                             "name": "data",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 3130,
-                            "src": "9132:4:1",
+                            "referencedDeclaration": 3599,
+                            "src": "9132:4:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes_calldata_ptr",
                               "typeString": "bytes calldata"
                             }
                           },
-                          "id": 3138,
+                          "id": 3607,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "9132:11:1",
+                          "src": "9132:11:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -20551,21 +20551,21 @@
                         "operator": "/",
                         "rightExpression": {
                           "hexValue": "3936",
-                          "id": 3139,
+                          "id": 3608,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "number",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "9146:2:1",
+                          "src": "9146:2:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_rational_96_by_1",
                             "typeString": "int_const 96"
                           },
                           "value": "96"
                         },
-                        "src": "9132:16:1",
+                        "src": "9132:16:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -20579,26 +20579,26 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 3136,
+                      "id": 3605,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "ElementaryTypeNameExpression",
-                      "src": "9125:6:1",
+                      "src": "9125:6:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_type$_t_uint32_$",
                         "typeString": "type(uint32)"
                       },
                       "typeName": {
-                        "id": 3135,
+                        "id": 3604,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "9125:6:1",
+                        "src": "9125:6:7",
                         "typeDescriptions": {}
                       }
                     },
-                    "id": 3141,
+                    "id": 3610,
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                     "isLValue": false,
                     "isPure": false,
@@ -20606,7 +20606,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "9125:24:1",
+                    "src": "9125:24:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
@@ -20614,7 +20614,7 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "9106:43:1"
+                  "src": "9106:43:7"
                 },
                 {
                   "expression": {
@@ -20624,7 +20624,7 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 3149,
+                        "id": 3618,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -20634,18 +20634,18 @@
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           },
-                          "id": 3146,
+                          "id": 3615,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 3144,
+                            "id": 3613,
                             "name": "numTokens",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 3134,
-                            "src": "9167:9:1",
+                            "referencedDeclaration": 3603,
+                            "src": "9167:9:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -20655,21 +20655,21 @@
                           "operator": "*",
                           "rightExpression": {
                             "hexValue": "3936",
-                            "id": 3145,
+                            "id": 3614,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "9179:2:1",
+                            "src": "9179:2:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_96_by_1",
                               "typeString": "int_const 96"
                             },
                             "value": "96"
                           },
-                          "src": "9167:14:1",
+                          "src": "9167:14:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -20679,31 +20679,31 @@
                         "operator": "==",
                         "rightExpression": {
                           "expression": {
-                            "id": 3147,
+                            "id": 3616,
                             "name": "data",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 3130,
-                            "src": "9185:4:1",
+                            "referencedDeclaration": 3599,
+                            "src": "9185:4:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes_calldata_ptr",
                               "typeString": "bytes calldata"
                             }
                           },
-                          "id": 3148,
+                          "id": 3617,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "9185:11:1",
+                          "src": "9185:11:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
-                        "src": "9167:29:1",
+                        "src": "9167:29:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -20711,14 +20711,14 @@
                       },
                       {
                         "hexValue": "64617461206d7573742068617665206c656e677468206d756c7469706c6520746f203936",
-                        "id": 3150,
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                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "9198:38:1",
+                        "src": "9198:38:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_7fb6a81bbdba15000418055bc5e058938e4fd0b50065d70de11ee03ca8f293e3",
                           "typeString": "literal_string \"data must have length multiple to 96\""
@@ -20737,7 +20737,7 @@
                           "typeString": "literal_string \"data must have length multiple to 96\""
                         }
                       ],
-                      "id": 3143,
+                      "id": 3612,
                       "name": "require",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
@@ -20745,13 +20745,13 @@
                         4294967278
                       ],
                       "referencedDeclaration": 4294967278,
-                      "src": "9159:7:1",
+                      "src": "9159:7:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (bool,string memory) pure"
                       }
                     },
-                    "id": 3151,
+                    "id": 3620,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -20759,64 +20759,64 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "9159:78:1",
+                    "src": "9159:78:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
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+                  "id": 3621,
                   "nodeType": "ExpressionStatement",
-                  "src": "9159:78:1"
+                  "src": "9159:78:7"
                 },
                 {
                   "body": {
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+                    "id": 3702,
                     "nodeType": "Block",
-                    "src": "9286:349:1",
+                    "src": "9286:349:7",
                     "statements": [
                       {
                         "assignments": [
-                          3165
+                          3634
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 3165,
+                            "id": 3634,
                             "mutability": "mutable",
                             "name": "tokenType",
-                            "nameLocation": "9310:9:1",
+                            "nameLocation": "9310:9:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 3233,
-                            "src": "9300:19:1",
+                            "scope": 3702,
+                            "src": "9300:19:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             },
                             "typeName": {
-                              "id": 3164,
+                              "id": 3633,
                               "nodeType": "UserDefinedTypeName",
                               "pathNode": {
-                                "id": 3163,
+                                "id": 3632,
                                 "name": "TokenType",
                                 "nodeType": "IdentifierPath",
-                                "referencedDeclaration": 2138,
-                                "src": "9300:9:1"
+                                "referencedDeclaration": 2607,
+                                "src": "9300:9:7"
                               },
-                              "referencedDeclaration": 2138,
-                              "src": "9300:9:1",
+                              "referencedDeclaration": 2607,
+                              "src": "9300:9:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             "visibility": "internal"
                           }
                         ],
-                        "id": 3183,
+                        "id": 3652,
                         "initialValue": {
                           "arguments": [
                             {
@@ -20825,12 +20825,12 @@
                                   "arguments": [
                                     {
                                       "baseExpression": {
-                                        "id": 3170,
+                                        "id": 3639,
                                         "name": "data",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3130,
-                                        "src": "9350:4:1",
+                                        "referencedDeclaration": 3599,
+                                        "src": "9350:4:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes_calldata_ptr",
                                           "typeString": "bytes calldata"
@@ -20841,7 +20841,7 @@
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
-                                        "id": 3178,
+                                        "id": 3647,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -20851,18 +20851,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
-                                          "id": 3176,
+                                          "id": 3645,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "leftExpression": {
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+                                            "id": 3643,
                                             "name": "i",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 3154,
-                                            "src": "9364:1:1",
+                                            "referencedDeclaration": 3623,
+                                            "src": "9364:1:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint32",
                                               "typeString": "uint32"
@@ -20872,21 +20872,21 @@
                                           "operator": "*",
                                           "rightExpression": {
                                             "hexValue": "3936",
-                                            "id": 3175,
+                                            "id": 3644,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": true,
                                             "kind": "number",
                                             "lValueRequested": false,
                                             "nodeType": "Literal",
-                                            "src": "9368:2:1",
+                                            "src": "9368:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
-                                          "src": "9364:6:1",
+                                          "src": "9364:6:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -20896,50 +20896,50 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3332",
-                                          "id": 3177,
+                                          "id": 3646,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "9373:2:1",
+                                          "src": "9373:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_32_by_1",
                                             "typeString": "int_const 32"
                                           },
                                           "value": "32"
                                         },
-                                        "src": "9364:11:1",
+                                        "src": "9364:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         }
                                       },
-                                      "id": 3179,
+                                      "id": 3648,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "nodeType": "IndexRangeAccess",
-                                      "src": "9350:26:1",
+                                      "src": "9350:26:7",
                                       "startExpression": {
                                         "commonType": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
-                                        "id": 3173,
+                                        "id": 3642,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
                                         "lValueRequested": false,
                                         "leftExpression": {
-                                          "id": 3171,
+                                          "id": 3640,
                                           "name": "i",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 3154,
-                                          "src": "9355:1:1",
+                                          "referencedDeclaration": 3623,
+                                          "src": "9355:1:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -20949,21 +20949,21 @@
                                         "operator": "*",
                                         "rightExpression": {
                                           "hexValue": "3936",
-                                          "id": 3172,
+                                          "id": 3641,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "9359:2:1",
+                                          "src": "9359:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_96_by_1",
                                             "typeString": "int_const 96"
                                           },
                                           "value": "96"
                                         },
-                                        "src": "9355:6:1",
+                                        "src": "9355:6:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -20982,18 +20982,18 @@
                                         "typeString": "bytes calldata slice"
                                       }
                                     ],
-                                    "id": 3169,
+                                    "id": 3638,
                                     "name": "_asByte32",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3390,
-                                    "src": "9340:9:1",
+                                    "referencedDeclaration": 3859,
+                                    "src": "9340:9:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                       "typeString": "function (bytes memory) pure returns (bytes32)"
                                     }
                                   },
-                                  "id": 3180,
+                                  "id": 3649,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -21001,7 +21001,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "9340:37:1",
+                                  "src": "9340:37:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -21016,26 +21016,26 @@
                                     "typeString": "bytes32"
                                   }
                                 ],
-                                "id": 3168,
+                                "id": 3637,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
                                 "lValueRequested": false,
                                 "nodeType": "ElementaryTypeNameExpression",
-                                "src": "9332:7:1",
+                                "src": "9332:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_type$_t_uint256_$",
                                   "typeString": "type(uint256)"
                                 },
                                 "typeName": {
-                                  "id": 3167,
+                                  "id": 3636,
                                   "name": "uint256",
                                   "nodeType": "ElementaryTypeName",
-                                  "src": "9332:7:1",
+                                  "src": "9332:7:7",
                                   "typeDescriptions": {}
                                 }
                               },
-                              "id": 3181,
+                              "id": 3650,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -21043,7 +21043,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "9332:46:1",
+                              "src": "9332:46:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
@@ -21058,18 +21058,18 @@
                                 "typeString": "uint256"
                               }
                             ],
-                            "id": 3166,
+                            "id": 3635,
                             "name": "TokenType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2138,
-                            "src": "9322:9:1",
+                            "referencedDeclaration": 2607,
+                            "src": "9322:9:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2138_$",
+                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                               "typeString": "type(enum TokenTracker.TokenType)"
                             }
                           },
-                          "id": 3182,
+                          "id": 3651,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -21077,30 +21077,30 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "9322:57:1",
+                          "src": "9322:57:7",
                           "tryCall": false,
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "9300:79:1"
+                        "src": "9300:79:7"
                       },
                       {
                         "assignments": [
-                          3185
+                          3654
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 3185,
+                            "id": 3654,
                             "mutability": "mutable",
                             "name": "contractAddress",
-                            "nameLocation": "9401:15:1",
+                            "nameLocation": "9401:15:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 3233,
-                            "src": "9393:23:1",
+                            "scope": 3702,
+                            "src": "9393:23:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -21108,10 +21108,10 @@
                               "typeString": "address"
                             },
                             "typeName": {
-                              "id": 3184,
+                              "id": 3653,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "9393:7:1",
+                              "src": "9393:7:7",
                               "stateMutability": "nonpayable",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
@@ -21121,7 +21121,7 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 3206,
+                        "id": 3675,
                         "initialValue": {
                           "arguments": [
                             {
@@ -21130,12 +21130,12 @@
                                   "arguments": [
                                     {
                                       "baseExpression": {
-                                        "id": 3191,
+                                        "id": 3660,
                                         "name": "data",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3130,
-                                        "src": "9445:4:1",
+                                        "referencedDeclaration": 3599,
+                                        "src": "9445:4:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes_calldata_ptr",
                                           "typeString": "bytes calldata"
@@ -21146,7 +21146,7 @@
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
-                                        "id": 3201,
+                                        "id": 3670,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -21156,18 +21156,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
-                                          "id": 3199,
+                                          "id": 3668,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "leftExpression": {
-                                            "id": 3197,
+                                            "id": 3666,
                                             "name": "i",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 3154,
-                                            "src": "9464:1:1",
+                                            "referencedDeclaration": 3623,
+                                            "src": "9464:1:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint32",
                                               "typeString": "uint32"
@@ -21177,21 +21177,21 @@
                                           "operator": "*",
                                           "rightExpression": {
                                             "hexValue": "3936",
-                                            "id": 3198,
+                                            "id": 3667,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": true,
                                             "kind": "number",
                                             "lValueRequested": false,
                                             "nodeType": "Literal",
-                                            "src": "9468:2:1",
+                                            "src": "9468:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
-                                          "src": "9464:6:1",
+                                          "src": "9464:6:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -21201,39 +21201,39 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3532",
-                                          "id": 3200,
+                                          "id": 3669,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "9473:2:1",
+                                          "src": "9473:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_52_by_1",
                                             "typeString": "int_const 52"
                                           },
                                           "value": "52"
                                         },
-                                        "src": "9464:11:1",
+                                        "src": "9464:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         }
                                       },
-                                      "id": 3202,
+                                      "id": 3671,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "nodeType": "IndexRangeAccess",
-                                      "src": "9445:31:1",
+                                      "src": "9445:31:7",
                                       "startExpression": {
                                         "commonType": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
-                                        "id": 3196,
+                                        "id": 3665,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -21243,18 +21243,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
-                                          "id": 3194,
+                                          "id": 3663,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "leftExpression": {
-                                            "id": 3192,
+                                            "id": 3661,
                                             "name": "i",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 3154,
-                                            "src": "9450:1:1",
+                                            "referencedDeclaration": 3623,
+                                            "src": "9450:1:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint32",
                                               "typeString": "uint32"
@@ -21264,21 +21264,21 @@
                                           "operator": "*",
                                           "rightExpression": {
                                             "hexValue": "3936",
-                                            "id": 3193,
+                                            "id": 3662,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": true,
                                             "kind": "number",
                                             "lValueRequested": false,
                                             "nodeType": "Literal",
-                                            "src": "9454:2:1",
+                                            "src": "9454:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
-                                          "src": "9450:6:1",
+                                          "src": "9450:6:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -21288,21 +21288,21 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3332",
-                                          "id": 3195,
+                                          "id": 3664,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "9459:2:1",
+                                          "src": "9459:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_32_by_1",
                                             "typeString": "int_const 32"
                                           },
                                           "value": "32"
                                         },
-                                        "src": "9450:11:1",
+                                        "src": "9450:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -21321,18 +21321,18 @@
                                         "typeString": "bytes calldata slice"
                                       }
                                     ],
-                                    "id": 3190,
+                                    "id": 3659,
                                     "name": "_asByte32",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3390,
-                                    "src": "9435:9:1",
+                                    "referencedDeclaration": 3859,
+                                    "src": "9435:9:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                       "typeString": "function (bytes memory) pure returns (bytes32)"
                                     }
                                   },
-                                  "id": 3203,
+                                  "id": 3672,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -21340,7 +21340,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "9435:42:1",
+                                  "src": "9435:42:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -21355,26 +21355,26 @@
                                     "typeString": "bytes32"
                                   }
                                 ],
-                                "id": 3189,
+                                "id": 3658,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
                                 "lValueRequested": false,
                                 "nodeType": "ElementaryTypeNameExpression",
-                                "src": "9427:7:1",
+                                "src": "9427:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_type$_t_bytes20_$",
                                   "typeString": "type(bytes20)"
                                 },
                                 "typeName": {
-                                  "id": 3188,
+                                  "id": 3657,
                                   "name": "bytes20",
                                   "nodeType": "ElementaryTypeName",
-                                  "src": "9427:7:1",
+                                  "src": "9427:7:7",
                                   "typeDescriptions": {}
                                 }
                               },
-                              "id": 3204,
+                              "id": 3673,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -21382,7 +21382,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "9427:51:1",
+                              "src": "9427:51:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes20",
@@ -21397,26 +21397,26 @@
                                 "typeString": "bytes20"
                               }
                             ],
-                            "id": 3187,
+                            "id": 3656,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "9419:7:1",
+                            "src": "9419:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_address_$",
                               "typeString": "type(address)"
                             },
                             "typeName": {
-                              "id": 3186,
+                              "id": 3655,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "9419:7:1",
+                              "src": "9419:7:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 3205,
+                          "id": 3674,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -21424,7 +21424,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "9419:60:1",
+                          "src": "9419:60:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
@@ -21432,22 +21432,22 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "9393:86:1"
+                        "src": "9393:86:7"
                       },
                       {
                         "assignments": [
-                          3208
+                          3677
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 3208,
+                            "id": 3677,
                             "mutability": "mutable",
                             "name": "tokenId",
-                            "nameLocation": "9501:7:1",
+                            "nameLocation": "9501:7:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 3233,
-                            "src": "9493:15:1",
+                            "scope": 3702,
+                            "src": "9493:15:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -21455,10 +21455,10 @@
                               "typeString": "uint256"
                             },
                             "typeName": {
-                              "id": 3207,
+                              "id": 3676,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "9493:7:1",
+                              "src": "9493:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -21467,19 +21467,19 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 3226,
+                        "id": 3695,
                         "initialValue": {
                           "arguments": [
                             {
                               "arguments": [
                                 {
                                   "baseExpression": {
-                                    "id": 3212,
+                                    "id": 3681,
                                     "name": "data",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3130,
-                                    "src": "9529:4:1",
+                                    "referencedDeclaration": 3599,
+                                    "src": "9529:4:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -21490,7 +21490,7 @@
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     },
-                                    "id": 3222,
+                                    "id": 3691,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -21500,18 +21500,18 @@
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
                                       },
-                                      "id": 3220,
+                                      "id": 3689,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "leftExpression": {
-                                        "id": 3218,
+                                        "id": 3687,
                                         "name": "i",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3154,
-                                        "src": "9548:1:1",
+                                        "referencedDeclaration": 3623,
+                                        "src": "9548:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -21521,21 +21521,21 @@
                                       "operator": "*",
                                       "rightExpression": {
                                         "hexValue": "3936",
-                                        "id": 3219,
+                                        "id": 3688,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "kind": "number",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "9552:2:1",
+                                        "src": "9552:2:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_rational_96_by_1",
                                           "typeString": "int_const 96"
                                         },
                                         "value": "96"
                                       },
-                                      "src": "9548:6:1",
+                                      "src": "9548:6:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
@@ -21545,39 +21545,39 @@
                                     "operator": "+",
                                     "rightExpression": {
                                       "hexValue": "3936",
-                                      "id": 3221,
+                                      "id": 3690,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "kind": "number",
                                       "lValueRequested": false,
                                       "nodeType": "Literal",
-                                      "src": "9557:2:1",
+                                      "src": "9557:2:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_rational_96_by_1",
                                         "typeString": "int_const 96"
                                       },
                                       "value": "96"
                                     },
-                                    "src": "9548:11:1",
+                                    "src": "9548:11:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     }
                                   },
-                                  "id": 3223,
+                                  "id": 3692,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "nodeType": "IndexRangeAccess",
-                                  "src": "9529:31:1",
+                                  "src": "9529:31:7",
                                   "startExpression": {
                                     "commonType": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     },
-                                    "id": 3217,
+                                    "id": 3686,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -21587,18 +21587,18 @@
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
                                       },
-                                      "id": 3215,
+                                      "id": 3684,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "leftExpression": {
-                                        "id": 3213,
+                                        "id": 3682,
                                         "name": "i",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3154,
-                                        "src": "9534:1:1",
+                                        "referencedDeclaration": 3623,
+                                        "src": "9534:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -21608,21 +21608,21 @@
                                       "operator": "*",
                                       "rightExpression": {
                                         "hexValue": "3936",
-                                        "id": 3214,
+                                        "id": 3683,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "kind": "number",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "9538:2:1",
+                                        "src": "9538:2:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_rational_96_by_1",
                                           "typeString": "int_const 96"
                                         },
                                         "value": "96"
                                       },
-                                      "src": "9534:6:1",
+                                      "src": "9534:6:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
@@ -21632,21 +21632,21 @@
                                     "operator": "+",
                                     "rightExpression": {
                                       "hexValue": "3634",
-                                      "id": 3216,
+                                      "id": 3685,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "kind": "number",
                                       "lValueRequested": false,
                                       "nodeType": "Literal",
-                                      "src": "9543:2:1",
+                                      "src": "9543:2:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_rational_64_by_1",
                                         "typeString": "int_const 64"
                                       },
                                       "value": "64"
                                     },
-                                    "src": "9534:11:1",
+                                    "src": "9534:11:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
@@ -21665,18 +21665,18 @@
                                     "typeString": "bytes calldata slice"
                                   }
                                 ],
-                                "id": 3211,
+                                "id": 3680,
                                 "name": "_asByte32",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3390,
-                                "src": "9519:9:1",
+                                "referencedDeclaration": 3859,
+                                "src": "9519:9:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                   "typeString": "function (bytes memory) pure returns (bytes32)"
                                 }
                               },
-                              "id": 3224,
+                              "id": 3693,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -21684,7 +21684,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "9519:42:1",
+                              "src": "9519:42:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
@@ -21699,26 +21699,26 @@
                                 "typeString": "bytes32"
                               }
                             ],
-                            "id": 3210,
+                            "id": 3679,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "9511:7:1",
+                            "src": "9511:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_uint256_$",
                               "typeString": "type(uint256)"
                             },
                             "typeName": {
-                              "id": 3209,
+                              "id": 3678,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "9511:7:1",
+                              "src": "9511:7:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 3225,
+                          "id": 3694,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -21726,7 +21726,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "9511:51:1",
+                          "src": "9511:51:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
@@ -21734,42 +21734,42 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "9493:69:1"
+                        "src": "9493:69:7"
                       },
                       {
                         "expression": {
                           "arguments": [
                             {
-                              "id": 3228,
+                              "id": 3697,
                               "name": "tokenType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3165,
-                              "src": "9588:9:1",
+                              "referencedDeclaration": 3634,
+                              "src": "9588:9:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             {
-                              "id": 3229,
+                              "id": 3698,
                               "name": "contractAddress",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3185,
-                              "src": "9599:15:1",
+                              "referencedDeclaration": 3654,
+                              "src": "9599:15:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
                                 "typeString": "address"
                               }
                             },
                             {
-                              "id": 3230,
+                              "id": 3699,
                               "name": "tokenId",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3208,
-                              "src": "9616:7:1",
+                              "referencedDeclaration": 3677,
+                              "src": "9616:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -21779,7 +21779,7 @@
                           "expression": {
                             "argumentTypes": [
                               {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               },
                               {
@@ -21791,18 +21791,18 @@
                                 "typeString": "uint256"
                               }
                             ],
-                            "id": 3227,
+                            "id": 3696,
                             "name": "_trackToken",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2620,
-                            "src": "9576:11:1",
+                            "referencedDeclaration": 3089,
+                            "src": "9576:11:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2138_$_t_address_$_t_uint256_$returns$__$",
+                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                               "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                             }
                           },
-                          "id": 3231,
+                          "id": 3700,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -21810,16 +21810,16 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "9576:48:1",
+                          "src": "9576:48:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 3232,
+                        "id": 3701,
                         "nodeType": "ExpressionStatement",
-                        "src": "9576:48:1"
+                        "src": "9576:48:7"
                       }
                     ]
                   },
@@ -21828,18 +21828,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
-                    "id": 3159,
+                    "id": 3628,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 3157,
+                      "id": 3626,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 3154,
-                      "src": "9266:1:1",
+                      "referencedDeclaration": 3623,
+                      "src": "9266:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -21848,38 +21848,38 @@
                     "nodeType": "BinaryOperation",
                     "operator": "<",
                     "rightExpression": {
-                      "id": 3158,
+                      "id": 3627,
                       "name": "numTokens",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 3134,
-                      "src": "9270:9:1",
+                      "referencedDeclaration": 3603,
+                      "src": "9270:9:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "9266:13:1",
+                    "src": "9266:13:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 3234,
+                  "id": 3703,
                   "initializationExpression": {
                     "assignments": [
-                      3154
+                      3623
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 3154,
+                        "id": 3623,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "9259:1:1",
+                        "nameLocation": "9259:1:7",
                         "nodeType": "VariableDeclaration",
-                        "scope": 3234,
-                        "src": "9252:8:1",
+                        "scope": 3703,
+                        "src": "9252:8:7",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -21887,10 +21887,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 3153,
+                          "id": 3622,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "9252:6:1",
+                          "src": "9252:6:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -21899,17 +21899,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 3156,
+                    "id": 3625,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 3155,
+                      "id": 3624,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "9263:1:1",
+                      "src": "9263:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -21917,11 +21917,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "9252:12:1"
+                    "src": "9252:12:7"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 3161,
+                      "id": 3630,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -21929,14 +21929,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "9281:3:1",
+                      "src": "9281:3:7",
                       "subExpression": {
-                        "id": 3160,
+                        "id": 3629,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 3154,
-                        "src": "9281:1:1",
+                        "referencedDeclaration": 3623,
+                        "src": "9281:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -21947,35 +21947,35 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 3162,
+                    "id": 3631,
                     "nodeType": "ExpressionStatement",
-                    "src": "9281:3:1"
+                    "src": "9281:3:7"
                   },
                   "nodeType": "ForStatement",
-                  "src": "9247:388:1"
+                  "src": "9247:388:7"
                 }
               ]
             },
-            "id": 3236,
+            "id": 3705,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_multiTrack",
-            "nameLocation": "9054:11:1",
+            "nameLocation": "9054:11:7",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 3131,
+              "id": 3600,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 3130,
+                  "id": 3599,
                   "mutability": "mutable",
                   "name": "data",
-                  "nameLocation": "9081:4:1",
+                  "nameLocation": "9081:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 3236,
-                  "src": "9066:19:1",
+                  "scope": 3705,
+                  "src": "9066:19:7",
                   "stateVariable": false,
                   "storageLocation": "calldata",
                   "typeDescriptions": {
@@ -21983,10 +21983,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 3129,
+                    "id": 3598,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "9066:5:1",
+                    "src": "9066:5:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -21995,40 +21995,40 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "9065:21:1"
+              "src": "9065:21:7"
             },
             "returnParameters": {
-              "id": 3132,
+              "id": 3601,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "9096:0:1"
+              "src": "9096:0:7"
             },
-            "scope": 3391,
-            "src": "9045:596:1",
+            "scope": 3860,
+            "src": "9045:596:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 3343,
+              "id": 3812,
               "nodeType": "Block",
-              "src": "9700:547:1",
+              "src": "9700:547:7",
               "statements": [
                 {
                   "assignments": [
-                    3242
+                    3711
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 3242,
+                      "id": 3711,
                       "mutability": "mutable",
                       "name": "numTokens",
-                      "nameLocation": "9717:9:1",
+                      "nameLocation": "9717:9:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 3343,
-                      "src": "9710:16:1",
+                      "scope": 3812,
+                      "src": "9710:16:7",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -22036,10 +22036,10 @@
                         "typeString": "uint32"
                       },
                       "typeName": {
-                        "id": 3241,
+                        "id": 3710,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "9710:6:1",
+                        "src": "9710:6:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -22048,7 +22048,7 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 3250,
+                  "id": 3719,
                   "initialValue": {
                     "arguments": [
                       {
@@ -22056,32 +22056,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 3248,
+                        "id": 3717,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 3245,
+                            "id": 3714,
                             "name": "data",
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                             "overloadedDeclarations": [],
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-                            "src": "9736:4:1",
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                             "typeDescriptions": {
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                               "typeString": "bytes calldata"
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                           "memberName": "length",
                           "nodeType": "MemberAccess",
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+                          "src": "9736:11:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -22091,21 +22091,21 @@
                         "operator": "/",
                         "rightExpression": {
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                           "isConstant": false,
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                           "nodeType": "Literal",
-                          "src": "9750:2:1",
+                          "src": "9750:2:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_rational_96_by_1",
                             "typeString": "int_const 96"
                           },
                           "value": "96"
                         },
-                        "src": "9736:16:1",
+                        "src": "9736:16:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -22119,26 +22119,26 @@
                           "typeString": "uint256"
                         }
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                         "typeString": "type(uint32)"
                       },
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                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
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@@ -22146,7 +22146,7 @@
                     "lValueRequested": false,
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                     "nodeType": "FunctionCall",
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+                    "src": "9729:24:7",
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                       "typeIdentifier": "t_uint32",
@@ -22154,7 +22154,7 @@
                     }
                   },
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-                  "src": "9710:43:1"
+                  "src": "9710:43:7"
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                   "expression": {
@@ -22164,7 +22164,7 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 3257,
+                        "id": 3726,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -22174,18 +22174,18 @@
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           },
-                          "id": 3254,
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                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 3252,
+                            "id": 3721,
                             "name": "numTokens",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 3242,
-                            "src": "9771:9:1",
+                            "referencedDeclaration": 3711,
+                            "src": "9771:9:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -22195,21 +22195,21 @@
                           "operator": "*",
                           "rightExpression": {
                             "hexValue": "3936",
-                            "id": 3253,
+                            "id": 3722,
                             "isConstant": false,
                             "isLValue": false,
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                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "9783:2:1",
+                            "src": "9783:2:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_96_by_1",
                               "typeString": "int_const 96"
                             },
                             "value": "96"
                           },
-                          "src": "9771:14:1",
+                          "src": "9771:14:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -22219,31 +22219,31 @@
                         "operator": "==",
                         "rightExpression": {
                           "expression": {
-                            "id": 3255,
+                            "id": 3724,
                             "name": "data",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
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-                            "src": "9789:4:1",
+                            "referencedDeclaration": 3707,
+                            "src": "9789:4:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes_calldata_ptr",
                               "typeString": "bytes calldata"
                             }
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                           "isConstant": false,
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                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "9789:11:1",
+                          "src": "9789:11:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
-                        "src": "9771:29:1",
+                        "src": "9771:29:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -22251,14 +22251,14 @@
                       },
                       {
                         "hexValue": "64617461206d7573742068617665206c656e677468206d756c7469706c6520746f203936",
-                        "id": 3258,
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                         "isConstant": false,
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                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "9802:38:1",
+                        "src": "9802:38:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_7fb6a81bbdba15000418055bc5e058938e4fd0b50065d70de11ee03ca8f293e3",
                           "typeString": "literal_string \"data must have length multiple to 96\""
@@ -22277,7 +22277,7 @@
                           "typeString": "literal_string \"data must have length multiple to 96\""
                         }
                       ],
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+                      "id": 3720,
                       "name": "require",
                       "nodeType": "Identifier",
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@@ -22285,13 +22285,13 @@
                         4294967278
                       ],
                       "referencedDeclaration": 4294967278,
-                      "src": "9763:7:1",
+                      "src": "9763:7:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (bool,string memory) pure"
                       }
                     },
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+                    "id": 3728,
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@@ -22299,64 +22299,64 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "9763:78:1",
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                       "typeString": "tuple()"
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+                          3742
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                             "name": "tokenType",
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                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             },
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                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
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                             "visibility": "internal"
                           }
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                         "initialValue": {
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                             {
@@ -22365,12 +22365,12 @@
                                   "arguments": [
                                     {
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+                                        "id": 3747,
                                         "name": "data",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
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+                                        "referencedDeclaration": 3707,
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                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes_calldata_ptr",
                                           "typeString": "bytes calldata"
@@ -22381,7 +22381,7 @@
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
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@@ -22391,18 +22391,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
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+                                            "src": "9968:1:7",
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                                               "typeString": "uint32"
@@ -22412,21 +22412,21 @@
                                           "operator": "*",
                                           "rightExpression": {
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-                                            "src": "9972:2:1",
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                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
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+                                          "src": "9968:6:7",
                                           "typeDescriptions": {
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                                             "typeString": "uint32"
@@ -22436,50 +22436,50 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3332",
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                                           "nodeType": "Literal",
-                                          "src": "9977:2:1",
+                                          "src": "9977:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_32_by_1",
                                             "typeString": "int_const 32"
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                                           "value": "32"
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-                                        "src": "9968:11:1",
+                                        "src": "9968:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         }
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                                       "nodeType": "IndexRangeAccess",
-                                      "src": "9954:26:1",
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                                           "typeString": "uint32"
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+                                          "src": "9959:1:7",
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                                             "typeString": "uint32"
@@ -22489,21 +22489,21 @@
                                         "operator": "*",
                                         "rightExpression": {
                                           "hexValue": "3936",
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                                           "nodeType": "Literal",
-                                          "src": "9963:2:1",
+                                          "src": "9963:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_96_by_1",
                                             "typeString": "int_const 96"
                                           },
                                           "value": "96"
                                         },
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+                                        "src": "9959:6:7",
                                         "typeDescriptions": {
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                                           "typeString": "uint32"
@@ -22522,18 +22522,18 @@
                                         "typeString": "bytes calldata slice"
                                       }
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+                                    "id": 3746,
                                     "name": "_asByte32",
                                     "nodeType": "Identifier",
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+                                    "referencedDeclaration": 3859,
+                                    "src": "9944:9:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                       "typeString": "function (bytes memory) pure returns (bytes32)"
                                     }
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@@ -22541,7 +22541,7 @@
                                   "lValueRequested": false,
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                                   "nodeType": "FunctionCall",
-                                  "src": "9944:37:1",
+                                  "src": "9944:37:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -22556,26 +22556,26 @@
                                     "typeString": "bytes32"
                                   }
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                                 "nodeType": "ElementaryTypeNameExpression",
-                                "src": "9936:7:1",
+                                "src": "9936:7:7",
                                 "typeDescriptions": {
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                                   "typeString": "type(uint256)"
                                 },
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+                                  "id": 3744,
                                   "name": "uint256",
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+                                  "src": "9936:7:7",
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@@ -22583,7 +22583,7 @@
                               "lValueRequested": false,
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+                              "src": "9936:46:7",
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@@ -22598,18 +22598,18 @@
                                 "typeString": "uint256"
                               }
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+                            "src": "9926:9:7",
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-                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2138_$",
+                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                               "typeString": "type(enum TokenTracker.TokenType)"
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@@ -22617,30 +22617,30 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "9926:57:1",
+                          "src": "9926:57:7",
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                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
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+                        "src": "9904:79:7"
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+                          3762
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+                            "id": 3762,
                             "mutability": "mutable",
                             "name": "contractAddress",
-                            "nameLocation": "10005:15:1",
+                            "nameLocation": "10005:15:7",
                             "nodeType": "VariableDeclaration",
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+                            "scope": 3810,
+                            "src": "9997:23:7",
                             "stateVariable": false,
                             "storageLocation": "default",
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@@ -22648,10 +22648,10 @@
                               "typeString": "address"
                             },
                             "typeName": {
-                              "id": 3292,
+                              "id": 3761,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "9997:7:1",
+                              "src": "9997:7:7",
                               "stateMutability": "nonpayable",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
@@ -22661,7 +22661,7 @@
                             "visibility": "internal"
                           }
                         ],
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+                        "id": 3783,
                         "initialValue": {
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@@ -22670,12 +22670,12 @@
                                   "arguments": [
                                     {
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                                         "name": "data",
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+                                        "referencedDeclaration": 3707,
+                                        "src": "10049:4:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes_calldata_ptr",
                                           "typeString": "bytes calldata"
@@ -22686,7 +22686,7 @@
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
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@@ -22696,18 +22696,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
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+                                            "src": "10068:1:7",
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                                               "typeString": "uint32"
@@ -22717,21 +22717,21 @@
                                           "operator": "*",
                                           "rightExpression": {
                                             "hexValue": "3936",
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                                             "nodeType": "Literal",
-                                            "src": "10072:2:1",
+                                            "src": "10072:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
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+                                          "src": "10068:6:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -22741,39 +22741,39 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3532",
-                                          "id": 3308,
+                                          "id": 3777,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "10077:2:1",
+                                          "src": "10077:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_52_by_1",
                                             "typeString": "int_const 52"
                                           },
                                           "value": "52"
                                         },
-                                        "src": "10068:11:1",
+                                        "src": "10068:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         }
                                       },
-                                      "id": 3310,
+                                      "id": 3779,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "nodeType": "IndexRangeAccess",
-                                      "src": "10049:31:1",
+                                      "src": "10049:31:7",
                                       "startExpression": {
                                         "commonType": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
-                                        "id": 3304,
+                                        "id": 3773,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -22783,18 +22783,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
-                                          "id": 3302,
+                                          "id": 3771,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "leftExpression": {
-                                            "id": 3300,
+                                            "id": 3769,
                                             "name": "i",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 3262,
-                                            "src": "10054:1:1",
+                                            "referencedDeclaration": 3731,
+                                            "src": "10054:1:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint32",
                                               "typeString": "uint32"
@@ -22804,21 +22804,21 @@
                                           "operator": "*",
                                           "rightExpression": {
                                             "hexValue": "3936",
-                                            "id": 3301,
+                                            "id": 3770,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": true,
                                             "kind": "number",
                                             "lValueRequested": false,
                                             "nodeType": "Literal",
-                                            "src": "10058:2:1",
+                                            "src": "10058:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
-                                          "src": "10054:6:1",
+                                          "src": "10054:6:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -22828,21 +22828,21 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3332",
-                                          "id": 3303,
+                                          "id": 3772,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "10063:2:1",
+                                          "src": "10063:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_32_by_1",
                                             "typeString": "int_const 32"
                                           },
                                           "value": "32"
                                         },
-                                        "src": "10054:11:1",
+                                        "src": "10054:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -22861,18 +22861,18 @@
                                         "typeString": "bytes calldata slice"
                                       }
                                     ],
-                                    "id": 3298,
+                                    "id": 3767,
                                     "name": "_asByte32",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3390,
-                                    "src": "10039:9:1",
+                                    "referencedDeclaration": 3859,
+                                    "src": "10039:9:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                       "typeString": "function (bytes memory) pure returns (bytes32)"
                                     }
                                   },
-                                  "id": 3311,
+                                  "id": 3780,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -22880,7 +22880,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "10039:42:1",
+                                  "src": "10039:42:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -22895,26 +22895,26 @@
                                     "typeString": "bytes32"
                                   }
                                 ],
-                                "id": 3297,
+                                "id": 3766,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
                                 "lValueRequested": false,
                                 "nodeType": "ElementaryTypeNameExpression",
-                                "src": "10031:7:1",
+                                "src": "10031:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_type$_t_bytes20_$",
                                   "typeString": "type(bytes20)"
                                 },
                                 "typeName": {
-                                  "id": 3296,
+                                  "id": 3765,
                                   "name": "bytes20",
                                   "nodeType": "ElementaryTypeName",
-                                  "src": "10031:7:1",
+                                  "src": "10031:7:7",
                                   "typeDescriptions": {}
                                 }
                               },
-                              "id": 3312,
+                              "id": 3781,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -22922,7 +22922,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "10031:51:1",
+                              "src": "10031:51:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes20",
@@ -22937,26 +22937,26 @@
                                 "typeString": "bytes20"
                               }
                             ],
-                            "id": 3295,
+                            "id": 3764,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "10023:7:1",
+                            "src": "10023:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_address_$",
                               "typeString": "type(address)"
                             },
                             "typeName": {
-                              "id": 3294,
+                              "id": 3763,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "10023:7:1",
+                              "src": "10023:7:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 3313,
+                          "id": 3782,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -22964,7 +22964,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "10023:60:1",
+                          "src": "10023:60:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
@@ -22972,22 +22972,22 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "9997:86:1"
+                        "src": "9997:86:7"
                       },
                       {
                         "assignments": [
-                          3316
+                          3785
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 3316,
+                            "id": 3785,
                             "mutability": "mutable",
                             "name": "tokenId",
-                            "nameLocation": "10105:7:1",
+                            "nameLocation": "10105:7:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 3341,
-                            "src": "10097:15:1",
+                            "scope": 3810,
+                            "src": "10097:15:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -22995,10 +22995,10 @@
                               "typeString": "uint256"
                             },
                             "typeName": {
-                              "id": 3315,
+                              "id": 3784,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "10097:7:1",
+                              "src": "10097:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -23007,19 +23007,19 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 3334,
+                        "id": 3803,
                         "initialValue": {
                           "arguments": [
                             {
                               "arguments": [
                                 {
                                   "baseExpression": {
-                                    "id": 3320,
+                                    "id": 3789,
                                     "name": "data",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3238,
-                                    "src": "10133:4:1",
+                                    "referencedDeclaration": 3707,
+                                    "src": "10133:4:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -23030,7 +23030,7 @@
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     },
-                                    "id": 3330,
+                                    "id": 3799,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -23040,18 +23040,18 @@
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
                                       },
-                                      "id": 3328,
+                                      "id": 3797,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "leftExpression": {
-                                        "id": 3326,
+                                        "id": 3795,
                                         "name": "i",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3262,
-                                        "src": "10152:1:1",
+                                        "referencedDeclaration": 3731,
+                                        "src": "10152:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -23061,21 +23061,21 @@
                                       "operator": "*",
                                       "rightExpression": {
                                         "hexValue": "3936",
-                                        "id": 3327,
+                                        "id": 3796,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "kind": "number",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "10156:2:1",
+                                        "src": "10156:2:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_rational_96_by_1",
                                           "typeString": "int_const 96"
                                         },
                                         "value": "96"
                                       },
-                                      "src": "10152:6:1",
+                                      "src": "10152:6:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
@@ -23085,39 +23085,39 @@
                                     "operator": "+",
                                     "rightExpression": {
                                       "hexValue": "3936",
-                                      "id": 3329,
+                                      "id": 3798,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "kind": "number",
                                       "lValueRequested": false,
                                       "nodeType": "Literal",
-                                      "src": "10161:2:1",
+                                      "src": "10161:2:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_rational_96_by_1",
                                         "typeString": "int_const 96"
                                       },
                                       "value": "96"
                                     },
-                                    "src": "10152:11:1",
+                                    "src": "10152:11:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     }
                                   },
-                                  "id": 3331,
+                                  "id": 3800,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "nodeType": "IndexRangeAccess",
-                                  "src": "10133:31:1",
+                                  "src": "10133:31:7",
                                   "startExpression": {
                                     "commonType": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     },
-                                    "id": 3325,
+                                    "id": 3794,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -23127,18 +23127,18 @@
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
                                       },
-                                      "id": 3323,
+                                      "id": 3792,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "leftExpression": {
-                                        "id": 3321,
+                                        "id": 3790,
                                         "name": "i",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3262,
-                                        "src": "10138:1:1",
+                                        "referencedDeclaration": 3731,
+                                        "src": "10138:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -23148,21 +23148,21 @@
                                       "operator": "*",
                                       "rightExpression": {
                                         "hexValue": "3936",
-                                        "id": 3322,
+                                        "id": 3791,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "kind": "number",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "10142:2:1",
+                                        "src": "10142:2:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_rational_96_by_1",
                                           "typeString": "int_const 96"
                                         },
                                         "value": "96"
                                       },
-                                      "src": "10138:6:1",
+                                      "src": "10138:6:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
@@ -23172,21 +23172,21 @@
                                     "operator": "+",
                                     "rightExpression": {
                                       "hexValue": "3634",
-                                      "id": 3324,
+                                      "id": 3793,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "kind": "number",
                                       "lValueRequested": false,
                                       "nodeType": "Literal",
-                                      "src": "10147:2:1",
+                                      "src": "10147:2:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_rational_64_by_1",
                                         "typeString": "int_const 64"
                                       },
                                       "value": "64"
                                     },
-                                    "src": "10138:11:1",
+                                    "src": "10138:11:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
@@ -23205,18 +23205,18 @@
                                     "typeString": "bytes calldata slice"
                                   }
                                 ],
-                                "id": 3319,
+                                "id": 3788,
                                 "name": "_asByte32",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3390,
-                                "src": "10123:9:1",
+                                "referencedDeclaration": 3859,
+                                "src": "10123:9:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                   "typeString": "function (bytes memory) pure returns (bytes32)"
                                 }
                               },
-                              "id": 3332,
+                              "id": 3801,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -23224,7 +23224,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "10123:42:1",
+                              "src": "10123:42:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
@@ -23239,26 +23239,26 @@
                                 "typeString": "bytes32"
                               }
                             ],
-                            "id": 3318,
+                            "id": 3787,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "10115:7:1",
+                            "src": "10115:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_uint256_$",
                               "typeString": "type(uint256)"
                             },
                             "typeName": {
-                              "id": 3317,
+                              "id": 3786,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "10115:7:1",
+                              "src": "10115:7:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 3333,
+                          "id": 3802,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -23266,7 +23266,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "10115:51:1",
+                          "src": "10115:51:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
@@ -23274,42 +23274,42 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "10097:69:1"
+                        "src": "10097:69:7"
                       },
                       {
                         "expression": {
                           "arguments": [
                             {
-                              "id": 3336,
+                              "id": 3805,
                               "name": "tokenType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3273,
-                              "src": "10194:9:1",
+                              "referencedDeclaration": 3742,
+                              "src": "10194:9:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             {
-                              "id": 3337,
+                              "id": 3806,
                               "name": "contractAddress",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3293,
-                              "src": "10205:15:1",
+                              "referencedDeclaration": 3762,
+                              "src": "10205:15:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
                                 "typeString": "address"
                               }
                             },
                             {
-                              "id": 3338,
+                              "id": 3807,
                               "name": "tokenId",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3316,
-                              "src": "10222:7:1",
+                              "referencedDeclaration": 3785,
+                              "src": "10222:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -23319,7 +23319,7 @@
                           "expression": {
                             "argumentTypes": [
                               {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               },
                               {
@@ -23331,18 +23331,18 @@
                                 "typeString": "uint256"
                               }
                             ],
-                            "id": 3335,
+                            "id": 3804,
                             "name": "_untrackToken",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2838,
-                            "src": "10180:13:1",
+                            "referencedDeclaration": 3307,
+                            "src": "10180:13:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2138_$_t_address_$_t_uint256_$returns$__$",
+                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                               "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                             }
                           },
-                          "id": 3339,
+                          "id": 3808,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -23350,16 +23350,16 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "10180:50:1",
+                          "src": "10180:50:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 3340,
+                        "id": 3809,
                         "nodeType": "ExpressionStatement",
-                        "src": "10180:50:1"
+                        "src": "10180:50:7"
                       }
                     ]
                   },
@@ -23368,18 +23368,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
-                    "id": 3267,
+                    "id": 3736,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 3265,
+                      "id": 3734,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 3262,
-                      "src": "9870:1:1",
+                      "referencedDeclaration": 3731,
+                      "src": "9870:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -23388,38 +23388,38 @@
                     "nodeType": "BinaryOperation",
                     "operator": "<",
                     "rightExpression": {
-                      "id": 3266,
+                      "id": 3735,
                       "name": "numTokens",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 3242,
-                      "src": "9874:9:1",
+                      "referencedDeclaration": 3711,
+                      "src": "9874:9:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "9870:13:1",
+                    "src": "9870:13:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 3342,
+                  "id": 3811,
                   "initializationExpression": {
                     "assignments": [
-                      3262
+                      3731
                     ],
                     "declarations": [
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@@ -23427,10 +23427,10 @@
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@@ -23439,17 +23439,17 @@
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@@ -23457,11 +23457,11 @@
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@@ -23487,35 +23487,35 @@
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@@ -23523,10 +23523,10 @@
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@@ -23561,32 +23561,32 @@
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@@ -23651,26 +23651,26 @@
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@@ -24043,16 +24043,16 @@
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@@ -24060,12 +24060,12 @@
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                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "649:9:1",
+                  "nameLocation": "649:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2164,
-                  "src": "639:19:1",
+                  "scope": 2633,
+                  "src": "639:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2157,
+                    "id": 2626,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2156,
+                      "id": 2625,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "639:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "639:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "639:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "639:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -24766,14 +24766,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2160,
+                  "id": 2629,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "668:15:1",
+                  "nameLocation": "668:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2164,
-                  "src": "660:23:1",
+                  "scope": 2633,
+                  "src": "660:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -24781,10 +24781,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2159,
+                    "id": 2628,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "660:7:1",
+                    "src": "660:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -24795,14 +24795,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2162,
+                  "id": 2631,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "693:7:1",
+                  "nameLocation": "693:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2164,
-                  "src": "685:15:1",
+                  "scope": 2633,
+                  "src": "685:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -24810,10 +24810,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2161,
+                    "id": 2630,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "685:7:1",
+                    "src": "685:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -24822,50 +24822,50 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "638:63:1"
+              "src": "638:63:7"
             },
-            "src": "620:82:1"
+            "src": "620:82:7"
           },
           {
             "anonymous": false,
-            "id": 2173,
+            "id": 2642,
             "name": "TokenUntracked",
-            "nameLocation": "713:14:1",
+            "nameLocation": "713:14:7",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 2172,
+              "id": 2641,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2167,
+                  "id": 2636,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "738:9:1",
+                  "nameLocation": "738:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2173,
-                  "src": "728:19:1",
+                  "scope": 2642,
+                  "src": "728:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2166,
+                    "id": 2635,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2165,
+                      "id": 2634,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "728:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "728:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "728:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "728:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -24873,14 +24873,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2169,
+                  "id": 2638,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "757:15:1",
+                  "nameLocation": "757:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2173,
-                  "src": "749:23:1",
+                  "scope": 2642,
+                  "src": "749:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -24888,10 +24888,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2168,
+                    "id": 2637,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "749:7:1",
+                    "src": "749:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -24902,14 +24902,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2171,
+                  "id": 2640,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "782:7:1",
+                  "nameLocation": "782:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2173,
-                  "src": "774:15:1",
+                  "scope": 2642,
+                  "src": "774:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -24917,10 +24917,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2170,
+                    "id": 2639,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "774:7:1",
+                    "src": "774:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -24929,50 +24929,50 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "727:63:1"
+              "src": "727:63:7"
             },
-            "src": "707:84:1"
+            "src": "707:84:7"
           },
           {
             "anonymous": false,
-            "id": 2182,
+            "id": 2651,
             "name": "TokenNotFound",
-            "nameLocation": "802:13:1",
+            "nameLocation": "802:13:7",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 2181,
+              "id": 2650,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2176,
+                  "id": 2645,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "826:9:1",
+                  "nameLocation": "826:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2182,
-                  "src": "816:19:1",
+                  "scope": 2651,
+                  "src": "816:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2175,
+                    "id": 2644,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2174,
+                      "id": 2643,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "816:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "816:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "816:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "816:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -24980,14 +24980,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2178,
+                  "id": 2647,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "845:15:1",
+                  "nameLocation": "845:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2182,
-                  "src": "837:23:1",
+                  "scope": 2651,
+                  "src": "837:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -24995,10 +24995,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2177,
+                    "id": 2646,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "837:7:1",
+                    "src": "837:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -25009,14 +25009,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2180,
+                  "id": 2649,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "870:7:1",
+                  "nameLocation": "870:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2182,
-                  "src": "862:15:1",
+                  "scope": 2651,
+                  "src": "862:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25024,10 +25024,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2179,
+                    "id": 2648,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "862:7:1",
+                    "src": "862:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -25036,50 +25036,50 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "815:63:1"
+              "src": "815:63:7"
             },
-            "src": "796:83:1"
+            "src": "796:83:7"
           },
           {
             "anonymous": false,
-            "id": 2195,
+            "id": 2664,
             "name": "TokenTransferFailed",
-            "nameLocation": "890:19:1",
+            "nameLocation": "890:19:7",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 2194,
+              "id": 2663,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2185,
+                  "id": 2654,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "920:9:1",
+                  "nameLocation": "920:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2195,
-                  "src": "910:19:1",
+                  "scope": 2664,
+                  "src": "910:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2184,
+                    "id": 2653,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2183,
+                      "id": 2652,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "910:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "910:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "910:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "910:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -25087,14 +25087,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2187,
+                  "id": 2656,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "939:15:1",
+                  "nameLocation": "939:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2195,
-                  "src": "931:23:1",
+                  "scope": 2664,
+                  "src": "931:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25102,10 +25102,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2186,
+                    "id": 2655,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "931:7:1",
+                    "src": "931:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -25116,14 +25116,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2189,
+                  "id": 2658,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "964:7:1",
+                  "nameLocation": "964:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2195,
-                  "src": "956:15:1",
+                  "scope": 2664,
+                  "src": "956:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25131,10 +25131,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2188,
+                    "id": 2657,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "956:7:1",
+                    "src": "956:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -25144,14 +25144,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2191,
+                  "id": 2660,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "981:4:1",
+                  "nameLocation": "981:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2195,
-                  "src": "973:12:1",
+                  "scope": 2664,
+                  "src": "973:12:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25159,10 +25159,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2190,
+                    "id": 2659,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "973:7:1",
+                    "src": "973:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -25173,14 +25173,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2193,
+                  "id": 2662,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "995:6:1",
+                  "nameLocation": "995:6:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2195,
-                  "src": "987:14:1",
+                  "scope": 2664,
+                  "src": "987:14:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25188,10 +25188,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2192,
+                    "id": 2661,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "987:7:1",
+                    "src": "987:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -25200,50 +25200,50 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "909:93:1"
+              "src": "909:93:7"
             },
-            "src": "884:119:1"
+            "src": "884:119:7"
           },
           {
             "anonymous": false,
-            "id": 2210,
+            "id": 2679,
             "name": "TokenTransferError",
-            "nameLocation": "1014:18:1",
+            "nameLocation": "1014:18:7",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 2209,
+              "id": 2678,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2198,
+                  "id": 2667,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "1043:9:1",
+                  "nameLocation": "1043:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2210,
-                  "src": "1033:19:1",
+                  "scope": 2679,
+                  "src": "1033:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2197,
+                    "id": 2666,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2196,
+                      "id": 2665,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "1033:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "1033:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "1033:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "1033:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -25251,14 +25251,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2200,
+                  "id": 2669,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "1062:15:1",
+                  "nameLocation": "1062:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2210,
-                  "src": "1054:23:1",
+                  "scope": 2679,
+                  "src": "1054:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25266,10 +25266,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2199,
+                    "id": 2668,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1054:7:1",
+                    "src": "1054:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -25280,14 +25280,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2202,
+                  "id": 2671,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "1087:7:1",
+                  "nameLocation": "1087:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2210,
-                  "src": "1079:15:1",
+                  "scope": 2679,
+                  "src": "1079:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25295,10 +25295,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2201,
+                    "id": 2670,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1079:7:1",
+                    "src": "1079:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -25308,14 +25308,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2204,
+                  "id": 2673,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "1104:4:1",
+                  "nameLocation": "1104:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2210,
-                  "src": "1096:12:1",
+                  "scope": 2679,
+                  "src": "1096:12:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25323,10 +25323,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2203,
+                    "id": 2672,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1096:7:1",
+                    "src": "1096:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -25337,14 +25337,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2206,
+                  "id": 2675,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "1118:6:1",
+                  "nameLocation": "1118:6:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2210,
-                  "src": "1110:14:1",
+                  "scope": 2679,
+                  "src": "1110:14:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25352,10 +25352,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2205,
+                    "id": 2674,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1110:7:1",
+                    "src": "1110:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -25365,14 +25365,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2208,
+                  "id": 2677,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "reason",
-                  "nameLocation": "1133:6:1",
+                  "nameLocation": "1133:6:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2210,
-                  "src": "1126:13:1",
+                  "scope": 2679,
+                  "src": "1126:13:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25380,10 +25380,10 @@
                     "typeString": "string"
                   },
                   "typeName": {
-                    "id": 2207,
+                    "id": 2676,
                     "name": "string",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1126:6:1",
+                    "src": "1126:6:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_string_storage_ptr",
                       "typeString": "string"
@@ -25392,50 +25392,50 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "1032:108:1"
+              "src": "1032:108:7"
             },
-            "src": "1008:133:1"
+            "src": "1008:133:7"
           },
           {
             "anonymous": false,
-            "id": 2223,
+            "id": 2692,
             "name": "TokenTransferSucceeded",
-            "nameLocation": "1152:22:1",
+            "nameLocation": "1152:22:7",
             "nodeType": "EventDefinition",
             "parameters": {
-              "id": 2222,
+              "id": 2691,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2213,
+                  "id": 2682,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "1185:9:1",
+                  "nameLocation": "1185:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2223,
-                  "src": "1175:19:1",
+                  "scope": 2692,
+                  "src": "1175:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2212,
+                    "id": 2681,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2211,
+                      "id": 2680,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "1175:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "1175:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "1175:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "1175:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -25443,14 +25443,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2215,
+                  "id": 2684,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "1204:15:1",
+                  "nameLocation": "1204:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2223,
-                  "src": "1196:23:1",
+                  "scope": 2692,
+                  "src": "1196:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25458,10 +25458,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2214,
+                    "id": 2683,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1196:7:1",
+                    "src": "1196:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -25472,14 +25472,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2217,
+                  "id": 2686,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "1229:7:1",
+                  "nameLocation": "1229:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2223,
-                  "src": "1221:15:1",
+                  "scope": 2692,
+                  "src": "1221:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25487,10 +25487,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2216,
+                    "id": 2685,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1221:7:1",
+                    "src": "1221:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -25500,14 +25500,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2219,
+                  "id": 2688,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "dest",
-                  "nameLocation": "1246:4:1",
+                  "nameLocation": "1246:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2223,
-                  "src": "1238:12:1",
+                  "scope": 2692,
+                  "src": "1238:12:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25515,10 +25515,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2218,
+                    "id": 2687,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1238:7:1",
+                    "src": "1238:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -25529,14 +25529,14 @@
                 },
                 {
                   "constant": false,
-                  "id": 2221,
+                  "id": 2690,
                   "indexed": false,
                   "mutability": "mutable",
                   "name": "amount",
-                  "nameLocation": "1260:6:1",
+                  "nameLocation": "1260:6:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2223,
-                  "src": "1252:14:1",
+                  "scope": 2692,
+                  "src": "1252:14:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -25544,10 +25544,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2220,
+                    "id": 2689,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "1252:7:1",
+                    "src": "1252:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -25556,43 +25556,43 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "1174:93:1"
+              "src": "1174:93:7"
             },
-            "src": "1146:122:1"
+            "src": "1146:122:7"
           },
           {
             "canonicalName": "TokenTracker.TrackedToken",
-            "id": 2231,
+            "id": 2700,
             "members": [
               {
                 "constant": false,
-                "id": 2226,
+                "id": 2695,
                 "mutability": "mutable",
                 "name": "tokenType",
-                "nameLocation": "1902:9:1",
+                "nameLocation": "1902:9:7",
                 "nodeType": "VariableDeclaration",
-                "scope": 2231,
-                "src": "1892:19:1",
+                "scope": 2700,
+                "src": "1892:19:7",
                 "stateVariable": false,
                 "storageLocation": "default",
                 "typeDescriptions": {
-                  "typeIdentifier": "t_enum$_TokenType_$2138",
+                  "typeIdentifier": "t_enum$_TokenType_$2607",
                   "typeString": "enum TokenTracker.TokenType"
                 },
                 "typeName": {
-                  "id": 2225,
+                  "id": 2694,
                   "nodeType": "UserDefinedTypeName",
                   "pathNode": {
-                    "id": 2224,
+                    "id": 2693,
                     "name": "TokenType",
                     "nodeType": "IdentifierPath",
-                    "referencedDeclaration": 2138,
-                    "src": "1892:9:1"
+                    "referencedDeclaration": 2607,
+                    "src": "1892:9:7"
                   },
-                  "referencedDeclaration": 2138,
-                  "src": "1892:9:1",
+                  "referencedDeclaration": 2607,
+                  "src": "1892:9:7",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   }
                 },
@@ -25600,13 +25600,13 @@
               },
               {
                 "constant": false,
-                "id": 2228,
+                "id": 2697,
                 "mutability": "mutable",
                 "name": "contractAddress",
-                "nameLocation": "1929:15:1",
+                "nameLocation": "1929:15:7",
                 "nodeType": "VariableDeclaration",
-                "scope": 2231,
-                "src": "1921:23:1",
+                "scope": 2700,
+                "src": "1921:23:7",
                 "stateVariable": false,
                 "storageLocation": "default",
                 "typeDescriptions": {
@@ -25614,10 +25614,10 @@
                   "typeString": "address"
                 },
                 "typeName": {
-                  "id": 2227,
+                  "id": 2696,
                   "name": "address",
                   "nodeType": "ElementaryTypeName",
-                  "src": "1921:7:1",
+                  "src": "1921:7:7",
                   "stateMutability": "nonpayable",
                   "typeDescriptions": {
                     "typeIdentifier": "t_address",
@@ -25628,13 +25628,13 @@
               },
               {
                 "constant": false,
-                "id": 2230,
+                "id": 2699,
                 "mutability": "mutable",
                 "name": "tokenId",
-                "nameLocation": "1962:7:1",
+                "nameLocation": "1962:7:7",
                 "nodeType": "VariableDeclaration",
-                "scope": 2231,
-                "src": "1954:15:1",
+                "scope": 2700,
+                "src": "1954:15:7",
                 "stateVariable": false,
                 "storageLocation": "default",
                 "typeDescriptions": {
@@ -25642,10 +25642,10 @@
                   "typeString": "uint256"
                 },
                 "typeName": {
-                  "id": 2229,
+                  "id": 2698,
                   "name": "uint256",
                   "nodeType": "ElementaryTypeName",
-                  "src": "1954:7:1",
+                  "src": "1954:7:7",
                   "typeDescriptions": {
                     "typeIdentifier": "t_uint256",
                     "typeString": "uint256"
@@ -25655,21 +25655,21 @@
               }
             ],
             "name": "TrackedToken",
-            "nameLocation": "1869:12:1",
+            "nameLocation": "1869:12:7",
             "nodeType": "StructDefinition",
-            "scope": 3391,
-            "src": "1862:151:1",
+            "scope": 3860,
+            "src": "1862:151:7",
             "visibility": "public"
           },
           {
             "constant": false,
-            "id": 2236,
+            "id": 2705,
             "mutability": "mutable",
             "name": "trackedTokenPositions",
-            "nameLocation": "2049:21:1",
+            "nameLocation": "2049:21:7",
             "nodeType": "VariableDeclaration",
-            "scope": 3391,
-            "src": "2019:51:1",
+            "scope": 3860,
+            "src": "2019:51:7",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
@@ -25677,37 +25677,37 @@
               "typeString": "mapping(bytes32 => uint256[])"
             },
             "typeName": {
-              "id": 2235,
+              "id": 2704,
               "keyType": {
-                "id": 2232,
+                "id": 2701,
                 "name": "bytes32",
                 "nodeType": "ElementaryTypeName",
-                "src": "2027:7:1",
+                "src": "2027:7:7",
                 "typeDescriptions": {
                   "typeIdentifier": "t_bytes32",
                   "typeString": "bytes32"
                 }
               },
               "nodeType": "Mapping",
-              "src": "2019:29:1",
+              "src": "2019:29:7",
               "typeDescriptions": {
                 "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                 "typeString": "mapping(bytes32 => uint256[])"
               },
               "valueType": {
                 "baseType": {
-                  "id": 2233,
+                  "id": 2702,
                   "name": "uint256",
                   "nodeType": "ElementaryTypeName",
-                  "src": "2038:7:1",
+                  "src": "2038:7:7",
                   "typeDescriptions": {
                     "typeIdentifier": "t_uint256",
                     "typeString": "uint256"
                   }
                 },
-                "id": 2234,
+                "id": 2703,
                 "nodeType": "ArrayTypeName",
-                "src": "2038:9:1",
+                "src": "2038:9:7",
                 "typeDescriptions": {
                   "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr",
                   "typeString": "uint256[]"
@@ -25718,42 +25718,42 @@
           },
           {
             "constant": false,
-            "id": 2240,
+            "id": 2709,
             "mutability": "mutable",
             "name": "trackedTokens",
-            "nameLocation": "2291:13:1",
+            "nameLocation": "2291:13:7",
             "nodeType": "VariableDeclaration",
-            "scope": 3391,
-            "src": "2276:28:1",
+            "scope": 3860,
+            "src": "2276:28:7",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
-              "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+              "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
               "typeString": "struct TokenTracker.TrackedToken[]"
             },
             "typeName": {
               "baseType": {
-                "id": 2238,
+                "id": 2707,
                 "nodeType": "UserDefinedTypeName",
                 "pathNode": {
-                  "id": 2237,
+                  "id": 2706,
                   "name": "TrackedToken",
                   "nodeType": "IdentifierPath",
-                  "referencedDeclaration": 2231,
-                  "src": "2276:12:1"
+                  "referencedDeclaration": 2700,
+                  "src": "2276:12:7"
                 },
-                "referencedDeclaration": 2231,
-                "src": "2276:12:1",
+                "referencedDeclaration": 2700,
+                "src": "2276:12:7",
                 "typeDescriptions": {
-                  "typeIdentifier": "t_struct$_TrackedToken_$2231_storage_ptr",
+                  "typeIdentifier": "t_struct$_TrackedToken_$2700_storage_ptr",
                   "typeString": "struct TokenTracker.TrackedToken"
                 }
               },
-              "id": 2239,
+              "id": 2708,
               "nodeType": "ArrayTypeName",
-              "src": "2276:14:1",
+              "src": "2276:14:7",
               "typeDescriptions": {
-                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr",
+                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr",
                 "typeString": "struct TokenTracker.TrackedToken[]"
               }
             },
@@ -25761,12 +25761,12 @@
           },
           {
             "body": {
-              "id": 2243,
+              "id": 2712,
               "nodeType": "Block",
-              "src": "2324:2:1",
+              "src": "2324:2:7",
               "statements": []
             },
-            "id": 2244,
+            "id": 2713,
             "implemented": true,
             "kind": "constructor",
             "modifiers": [],
@@ -25774,81 +25774,81 @@
             "nameLocation": "-1:-1:-1",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2241,
+              "id": 2710,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "2322:2:1"
+              "src": "2322:2:7"
             },
             "returnParameters": {
-              "id": 2242,
+              "id": 2711,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "2324:0:1"
+              "src": "2324:0:7"
             },
-            "scope": 3391,
-            "src": "2311:15:1",
+            "scope": 3860,
+            "src": "2311:15:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "public"
           },
           {
             "baseFunctions": [
-              3535
+              143
             ],
             "body": {
-              "id": 2284,
+              "id": 2753,
               "nodeType": "Block",
-              "src": "2519:203:1",
+              "src": "2519:203:7",
               "statements": [
                 {
                   "eventCall": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2261,
+                          "id": 2730,
                           "name": "TokenType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2138,
-                          "src": "2548:9:1",
+                          "referencedDeclaration": 2607,
+                          "src": "2548:9:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2138_$",
+                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                             "typeString": "type(enum TokenTracker.TokenType)"
                           }
                         },
-                        "id": 2262,
+                        "id": 2731,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "memberName": "ERC1155",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 2136,
-                        "src": "2548:17:1",
+                        "referencedDeclaration": 2605,
+                        "src": "2548:17:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
-                        "id": 2263,
+                        "id": 2732,
                         "name": "value",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2252,
-                        "src": "2567:5:1",
+                        "referencedDeclaration": 2721,
+                        "src": "2567:5:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         }
                       },
                       {
-                        "id": 2264,
+                        "id": 2733,
                         "name": "from",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2248,
-                        "src": "2574:4:1",
+                        "referencedDeclaration": 2717,
+                        "src": "2574:4:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
@@ -25856,61 +25856,61 @@
                       },
                       {
                         "expression": {
-                          "id": 2265,
+                          "id": 2734,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "2580:3:1",
+                          "src": "2580:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_magic_message",
                             "typeString": "msg"
                           }
                         },
-                        "id": 2266,
+                        "id": 2735,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "sender",
                         "nodeType": "MemberAccess",
-                        "src": "2580:10:1",
+                        "src": "2580:10:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2267,
+                        "id": 2736,
                         "name": "operator",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2246,
-                        "src": "2592:8:1",
+                        "referencedDeclaration": 2715,
+                        "src": "2592:8:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2268,
+                        "id": 2737,
                         "name": "id",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2250,
-                        "src": "2602:2:1",
+                        "referencedDeclaration": 2719,
+                        "src": "2602:2:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         }
                       },
                       {
-                        "id": 2269,
+                        "id": 2738,
                         "name": "data",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2254,
-                        "src": "2606:4:1",
+                        "referencedDeclaration": 2723,
+                        "src": "2606:4:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_calldata_ptr",
                           "typeString": "bytes calldata"
@@ -25920,7 +25920,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -25948,18 +25948,18 @@
                           "typeString": "bytes calldata"
                         }
                       ],
-                      "id": 2260,
+                      "id": 2729,
                       "name": "ReceivedToken",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2155,
-                      "src": "2534:13:1",
+                      "referencedDeclaration": 2624,
+                      "src": "2534:13:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2138_$_t_uint256_$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_uint256_$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
                         "typeString": "function (enum TokenTracker.TokenType,uint256,address,address,address,uint256,bytes memory)"
                       }
                     },
-                    "id": 2270,
+                    "id": 2739,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -25967,80 +25967,80 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "2534:77:1",
+                    "src": "2534:77:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2271,
+                  "id": 2740,
                   "nodeType": "EmitStatement",
-                  "src": "2529:82:1"
+                  "src": "2529:82:7"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2273,
+                          "id": 2742,
                           "name": "TokenType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2138,
-                          "src": "2633:9:1",
+                          "referencedDeclaration": 2607,
+                          "src": "2633:9:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2138_$",
+                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                             "typeString": "type(enum TokenTracker.TokenType)"
                           }
                         },
-                        "id": 2274,
+                        "id": 2743,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
                         "memberName": "ERC1155",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 2136,
-                        "src": "2633:17:1",
+                        "referencedDeclaration": 2605,
+                        "src": "2633:17:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
                         "expression": {
-                          "id": 2275,
+                          "id": 2744,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "2652:3:1",
+                          "src": "2652:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_magic_message",
                             "typeString": "msg"
                           }
                         },
-                        "id": 2276,
+                        "id": 2745,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "sender",
                         "nodeType": "MemberAccess",
-                        "src": "2652:10:1",
+                        "src": "2652:10:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2277,
+                        "id": 2746,
                         "name": "id",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2250,
-                        "src": "2664:2:1",
+                        "referencedDeclaration": 2719,
+                        "src": "2664:2:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -26050,7 +26050,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -26062,18 +26062,18 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2272,
+                      "id": 2741,
                       "name": "_trackToken",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2620,
-                      "src": "2621:11:1",
+                      "referencedDeclaration": 3089,
+                      "src": "2621:11:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2138_$_t_address_$_t_uint256_$returns$__$",
+                        "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                         "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                       }
                     },
-                    "id": 2278,
+                    "id": 2747,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -26081,93 +26081,93 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "2621:46:1",
+                    "src": "2621:46:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2279,
+                  "id": 2748,
                   "nodeType": "ExpressionStatement",
-                  "src": "2621:46:1"
+                  "src": "2621:46:7"
                 },
                 {
                   "expression": {
                     "expression": {
                       "expression": {
-                        "id": 2280,
+                        "id": 2749,
                         "name": "this",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 4294967268,
-                        "src": "2684:4:1",
+                        "src": "2684:4:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_contract$_TokenTracker_$3391",
+                          "typeIdentifier": "t_contract$_TokenTracker_$3860",
                           "typeString": "contract TokenTracker"
                         }
                       },
-                      "id": 2281,
+                      "id": 2750,
                       "isConstant": false,
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                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "onERC1155Received",
                       "nodeType": "MemberAccess",
-                      "referencedDeclaration": 2285,
-                      "src": "2684:22:1",
+                      "referencedDeclaration": 2754,
+                      "src": "2684:22:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$",
                         "typeString": "function (address,address,uint256,uint256,bytes memory) external returns (bytes4)"
                       }
                     },
-                    "id": 2282,
+                    "id": 2751,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": true,
                     "lValueRequested": false,
                     "memberName": "selector",
                     "nodeType": "MemberAccess",
-                    "src": "2684:31:1",
+                    "src": "2684:31:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes4",
                       "typeString": "bytes4"
                     }
                   },
-                  "functionReturnParameters": 2259,
-                  "id": 2283,
+                  "functionReturnParameters": 2728,
+                  "id": 2752,
                   "nodeType": "Return",
-                  "src": "2677:38:1"
+                  "src": "2677:38:7"
                 }
               ]
             },
             "functionSelector": "f23a6e61",
-            "id": 2285,
+            "id": 2754,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "onERC1155Received",
-            "nameLocation": "2341:17:1",
+            "nameLocation": "2341:17:7",
             "nodeType": "FunctionDefinition",
             "overrides": {
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+              "id": 2725,
               "nodeType": "OverrideSpecifier",
               "overrides": [],
-              "src": "2494:8:1"
+              "src": "2494:8:7"
             },
             "parameters": {
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+              "id": 2724,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
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+                  "id": 2715,
                   "mutability": "mutable",
                   "name": "operator",
-                  "nameLocation": "2376:8:1",
+                  "nameLocation": "2376:8:7",
                   "nodeType": "VariableDeclaration",
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-                  "src": "2368:16:1",
+                  "scope": 2754,
+                  "src": "2368:16:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26175,10 +26175,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2245,
+                    "id": 2714,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "2368:7:1",
+                    "src": "2368:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -26189,13 +26189,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2248,
+                  "id": 2717,
                   "mutability": "mutable",
                   "name": "from",
-                  "nameLocation": "2402:4:1",
+                  "nameLocation": "2402:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2285,
-                  "src": "2394:12:1",
+                  "scope": 2754,
+                  "src": "2394:12:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26203,10 +26203,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2247,
+                    "id": 2716,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "2394:7:1",
+                    "src": "2394:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -26217,13 +26217,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2250,
+                  "id": 2719,
                   "mutability": "mutable",
                   "name": "id",
-                  "nameLocation": "2424:2:1",
+                  "nameLocation": "2424:2:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2285,
-                  "src": "2416:10:1",
+                  "scope": 2754,
+                  "src": "2416:10:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26231,10 +26231,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2249,
+                    "id": 2718,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "2416:7:1",
+                    "src": "2416:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -26244,13 +26244,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2252,
+                  "id": 2721,
                   "mutability": "mutable",
                   "name": "value",
-                  "nameLocation": "2444:5:1",
+                  "nameLocation": "2444:5:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2285,
-                  "src": "2436:13:1",
+                  "scope": 2754,
+                  "src": "2436:13:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26258,10 +26258,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2251,
+                    "id": 2720,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "2436:7:1",
+                    "src": "2436:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -26271,13 +26271,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2254,
+                  "id": 2723,
                   "mutability": "mutable",
                   "name": "data",
-                  "nameLocation": "2474:4:1",
+                  "nameLocation": "2474:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2285,
-                  "src": "2459:19:1",
+                  "scope": 2754,
+                  "src": "2459:19:7",
                   "stateVariable": false,
                   "storageLocation": "calldata",
                   "typeDescriptions": {
@@ -26285,10 +26285,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 2253,
+                    "id": 2722,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "2459:5:1",
+                    "src": "2459:5:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -26297,21 +26297,21 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "2358:126:1"
+              "src": "2358:126:7"
             },
             "returnParameters": {
-              "id": 2259,
+              "id": 2728,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2258,
+                  "id": 2727,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2285,
-                  "src": "2512:6:1",
+                  "scope": 2754,
+                  "src": "2512:6:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -26319,10 +26319,10 @@
                     "typeString": "bytes4"
                   },
                   "typeName": {
-                    "id": 2257,
+                    "id": 2726,
                     "name": "bytes4",
                     "nodeType": "ElementaryTypeName",
-                    "src": "2512:6:1",
+                    "src": "2512:6:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes4",
                       "typeString": "bytes4"
@@ -26331,51 +26331,51 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "2511:8:1"
+              "src": "2511:8:7"
             },
-            "scope": 3391,
-            "src": "2332:390:1",
+            "scope": 3860,
+            "src": "2332:390:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "external"
           },
           {
             "baseFunctions": [
-              3553
+              161
             ],
             "body": {
-              "id": 2334,
+              "id": 2803,
               "nodeType": "Block",
-              "src": "2898:197:1",
+              "src": "2898:197:7",
               "statements": [
                 {
                   "body": {
-                    "id": 2328,
+                    "id": 2797,
                     "nodeType": "Block",
-                    "src": "2948:88:1",
+                    "src": "2948:88:7",
                     "statements": [
                       {
                         "expression": {
                           "arguments": [
                             {
-                              "id": 2317,
+                              "id": 2786,
                               "name": "operator",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2287,
-                              "src": "2985:8:1",
+                              "referencedDeclaration": 2756,
+                              "src": "2985:8:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
                                 "typeString": "address"
                               }
                             },
                             {
-                              "id": 2318,
+                              "id": 2787,
                               "name": "from",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2289,
-                              "src": "2995:4:1",
+                              "referencedDeclaration": 2758,
+                              "src": "2995:4:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
                                 "typeString": "address"
@@ -26383,25 +26383,25 @@
                             },
                             {
                               "baseExpression": {
-                                "id": 2319,
+                                "id": 2788,
                                 "name": "ids",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2292,
-                                "src": "3001:3:1",
+                                "referencedDeclaration": 2761,
+                                "src": "3001:3:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_array$_t_uint256_$dyn_calldata_ptr",
                                   "typeString": "uint256[] calldata"
                                 }
                               },
-                              "id": 2321,
+                              "id": 2790,
                               "indexExpression": {
-                                "id": 2320,
+                                "id": 2789,
                                 "name": "i",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2304,
-                                "src": "3005:1:1",
+                                "referencedDeclaration": 2773,
+                                "src": "3005:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
@@ -26412,7 +26412,7 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "3001:6:1",
+                              "src": "3001:6:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -26420,25 +26420,25 @@
                             },
                             {
                               "baseExpression": {
-                                "id": 2322,
+                                "id": 2791,
                                 "name": "values",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2295,
-                                "src": "3009:6:1",
+                                "referencedDeclaration": 2764,
+                                "src": "3009:6:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_array$_t_uint256_$dyn_calldata_ptr",
                                   "typeString": "uint256[] calldata"
                                 }
                               },
-                              "id": 2324,
+                              "id": 2793,
                               "indexExpression": {
-                                "id": 2323,
+                                "id": 2792,
                                 "name": "i",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2304,
-                                "src": "3016:1:1",
+                                "referencedDeclaration": 2773,
+                                "src": "3016:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
@@ -26449,19 +26449,19 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "3009:9:1",
+                              "src": "3009:9:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
                             {
-                              "id": 2325,
+                              "id": 2794,
                               "name": "data",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2297,
-                              "src": "3020:4:1",
+                              "referencedDeclaration": 2766,
+                              "src": "3020:4:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_calldata_ptr",
                                 "typeString": "bytes calldata"
@@ -26492,32 +26492,32 @@
                               }
                             ],
                             "expression": {
-                              "id": 2314,
+                              "id": 2783,
                               "name": "this",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 4294967268,
-                              "src": "2962:4:1",
+                              "src": "2962:4:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_contract$_TokenTracker_$3391",
+                                "typeIdentifier": "t_contract$_TokenTracker_$3860",
                                 "typeString": "contract TokenTracker"
                               }
                             },
-                            "id": 2316,
+                            "id": 2785,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "onERC1155Received",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2285,
-                            "src": "2962:22:1",
+                            "referencedDeclaration": 2754,
+                            "src": "2962:22:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$",
                               "typeString": "function (address,address,uint256,uint256,bytes memory) external returns (bytes4)"
                             }
                           },
-                          "id": 2326,
+                          "id": 2795,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -26525,16 +26525,16 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "2962:63:1",
+                          "src": "2962:63:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes4",
                             "typeString": "bytes4"
                           }
                         },
-                        "id": 2327,
+                        "id": 2796,
                         "nodeType": "ExpressionStatement",
-                        "src": "2962:63:1"
+                        "src": "2962:63:7"
                       }
                     ]
                   },
@@ -26543,18 +26543,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2310,
+                    "id": 2779,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 2307,
+                      "id": 2776,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2304,
-                      "src": "2927:1:1",
+                      "referencedDeclaration": 2773,
+                      "src": "2927:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -26564,51 +26564,51 @@
                     "operator": "<",
                     "rightExpression": {
                       "expression": {
-                        "id": 2308,
+                        "id": 2777,
                         "name": "ids",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2292,
-                        "src": "2931:3:1",
+                        "referencedDeclaration": 2761,
+                        "src": "2931:3:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_calldata_ptr",
                           "typeString": "uint256[] calldata"
                         }
                       },
-                      "id": 2309,
+                      "id": 2778,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "2931:10:1",
+                      "src": "2931:10:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "2927:14:1",
+                    "src": "2927:14:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2329,
+                  "id": 2798,
                   "initializationExpression": {
                     "assignments": [
-                      2304
+                      2773
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 2304,
+                        "id": 2773,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "2920:1:1",
+                        "nameLocation": "2920:1:7",
                         "nodeType": "VariableDeclaration",
-                        "scope": 2329,
-                        "src": "2913:8:1",
+                        "scope": 2798,
+                        "src": "2913:8:7",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -26616,10 +26616,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 2303,
+                          "id": 2772,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "2913:6:1",
+                          "src": "2913:6:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -26628,17 +26628,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2306,
+                    "id": 2775,
                     "initialValue": {
                       "hexValue": "30",
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+                      "id": 2774,
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                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "2924:1:1",
+                      "src": "2924:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -26646,11 +26646,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "2913:12:1"
+                    "src": "2913:12:7"
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+                      "id": 2781,
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@@ -26658,14 +26658,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "2943:3:1",
+                      "src": "2943:3:7",
                       "subExpression": {
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                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2304,
-                        "src": "2943:1:1",
+                        "referencedDeclaration": 2773,
+                        "src": "2943:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -26676,89 +26676,89 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 2313,
+                    "id": 2782,
                     "nodeType": "ExpressionStatement",
-                    "src": "2943:3:1"
+                    "src": "2943:3:7"
                   },
                   "nodeType": "ForStatement",
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+                  "src": "2908:128:7"
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                     "expression": {
                       "expression": {
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+                        "id": 2799,
                         "name": "this",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 4294967268,
-                        "src": "3052:4:1",
+                        "src": "3052:4:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_contract$_TokenTracker_$3391",
+                          "typeIdentifier": "t_contract$_TokenTracker_$3860",
                           "typeString": "contract TokenTracker"
                         }
                       },
-                      "id": 2331,
+                      "id": 2800,
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+                      "referencedDeclaration": 2804,
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                         "typeString": "function (address,address,uint256[] memory,uint256[] memory,bytes memory) external returns (bytes4)"
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                     "memberName": "selector",
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-                    "src": "3052:36:1",
+                    "src": "3052:36:7",
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                       "typeString": "bytes4"
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+                  "src": "3045:43:7"
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+            "id": 2804,
             "implemented": true,
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             "modifiers": [],
             "name": "onERC1155BatchReceived",
-            "nameLocation": "2737:22:1",
+            "nameLocation": "2737:22:7",
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+              "src": "2873:8:7"
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@@ -26766,10 +26766,10 @@
                     "typeString": "address"
                   },
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+                    "id": 2755,
                     "name": "address",
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                     "stateMutability": "nonpayable",
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@@ -26780,13 +26780,13 @@
                 },
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+                  "id": 2758,
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@@ -26794,10 +26794,10 @@
                     "typeString": "address"
                   },
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+                    "id": 2757,
                     "name": "address",
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+                    "src": "2778:7:7",
                     "stateMutability": "nonpayable",
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@@ -26808,13 +26808,13 @@
                 },
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+                  "id": 2761,
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@@ -26823,18 +26823,18 @@
                   },
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+                      "id": 2759,
                       "name": "uint256",
                       "nodeType": "ElementaryTypeName",
-                      "src": "2792:7:1",
+                      "src": "2792:7:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
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+                    "id": 2760,
                     "nodeType": "ArrayTypeName",
-                    "src": "2792:9:1",
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                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr",
                       "typeString": "uint256[]"
@@ -26844,13 +26844,13 @@
                 },
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                   "constant": false,
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+                  "id": 2764,
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@@ -26859,18 +26859,18 @@
                   },
                   "typeName": {
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+                      "id": 2762,
                       "name": "uint256",
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-                      "src": "2816:7:1",
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                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
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+                    "id": 2763,
                     "nodeType": "ArrayTypeName",
-                    "src": "2816:9:1",
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                       "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr",
                       "typeString": "uint256[]"
@@ -26880,13 +26880,13 @@
                 },
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@@ -26894,10 +26894,10 @@
                     "typeString": "bytes"
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+                    "id": 2765,
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                     "typeDescriptions": {
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                       "typeString": "bytes"
@@ -26906,21 +26906,21 @@
                   "visibility": "internal"
                 }
               ],
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+              "src": "2759:104:7"
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@@ -26928,10 +26928,10 @@
                     "typeString": "bytes4"
                   },
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+                    "id": 2769,
                     "name": "bytes4",
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@@ -26940,22 +26940,22 @@
                   "visibility": "internal"
                 }
               ],
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+              "src": "2890:8:7"
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             "visibility": "external"
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           {
             "baseFunctions": [
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+              385
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@@ -26963,7 +26963,7 @@
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     },
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@@ -26973,7 +26973,7 @@
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
                       },
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@@ -26983,18 +26983,18 @@
                           "typeIdentifier": "t_bytes4",
                           "typeString": "bytes4"
                         },
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@@ -27005,45 +27005,45 @@
                         "rightExpression": {
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-                              "src": "3218:4:1",
+                              "src": "3218:4:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_contract$_TokenTracker_$3391",
+                                "typeIdentifier": "t_contract$_TokenTracker_$3860",
                                 "typeString": "contract TokenTracker"
                               }
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+                            "referencedDeclaration": 2831,
+                            "src": "3218:22:7",
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                               "typeString": "function (bytes4) pure external returns (bool)"
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                           },
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                           "memberName": "selector",
                           "nodeType": "MemberAccess",
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+                          "src": "3218:31:7",
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                             "typeString": "bytes4"
                           }
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-                        "src": "3203:46:1",
+                        "src": "3203:46:7",
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@@ -27056,18 +27056,18 @@
                           "typeIdentifier": "t_bytes4",
                           "typeString": "bytes4"
                         },
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+                          "src": "3261:11:7",
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@@ -27078,51 +27078,51 @@
                         "rightExpression": {
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+                              "id": 2818,
                               "name": "this",
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                               "referencedDeclaration": 4294967268,
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                               "typeDescriptions": {
-                                "typeIdentifier": "t_contract$_TokenTracker_$3391",
+                                "typeIdentifier": "t_contract$_TokenTracker_$3860",
                                 "typeString": "contract TokenTracker"
                               }
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                             "memberName": "onERC1155Received",
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-                            "src": "3276:22:1",
+                            "referencedDeclaration": 2754,
+                            "src": "3276:22:7",
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                               "typeString": "function (address,address,uint256,uint256,bytes memory) external returns (bytes4)"
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                           "memberName": "selector",
                           "nodeType": "MemberAccess",
-                          "src": "3276:31:1",
+                          "src": "3276:31:7",
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                             "typeIdentifier": "t_bytes4",
                             "typeString": "bytes4"
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-                        "src": "3261:46:1",
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                           "typeString": "bool"
                         }
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@@ -27135,18 +27135,18 @@
                         "typeIdentifier": "t_bytes4",
                         "typeString": "bytes4"
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-                        "referencedDeclaration": 2337,
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@@ -27157,90 +27157,90 @@
                       "rightExpression": {
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+                            "id": 2824,
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                             "referencedDeclaration": 4294967268,
-                            "src": "3334:4:1",
+                            "src": "3334:4:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_contract$_TokenTracker_$3391",
+                              "typeIdentifier": "t_contract$_TokenTracker_$3860",
                               "typeString": "contract TokenTracker"
                             }
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                           "memberName": "onERC721Received",
                           "nodeType": "MemberAccess",
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-                          "src": "3334:21:1",
+                          "referencedDeclaration": 2870,
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                             "typeString": "function (address,address,uint256,bytes memory) external returns (bytes4)"
                           }
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                         "lValueRequested": false,
                         "memberName": "selector",
                         "nodeType": "MemberAccess",
-                        "src": "3334:30:1",
+                        "src": "3334:30:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes4",
                           "typeString": "bytes4"
                         }
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-                      "src": "3319:45:1",
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                         "typeString": "bool"
                       }
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-                    "src": "3203:161:1",
+                    "src": "3203:161:7",
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+                  "src": "3196:168:7"
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+            "id": 2831,
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+            "nameLocation": "3110:17:7",
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@@ -27248,10 +27248,10 @@
                     "typeString": "bytes4"
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+                    "id": 2805,
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                       "typeString": "bytes4"
@@ -27260,21 +27260,21 @@
                   "visibility": "internal"
                 }
               ],
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+              "src": "3127:20:7"
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                   "nameLocation": "-1:-1:-1",
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-                  "src": "3180:4:1",
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                   "typeDescriptions": {
@@ -27282,10 +27282,10 @@
                     "typeString": "bool"
                   },
                   "typeName": {
-                    "id": 2340,
+                    "id": 2809,
                     "name": "bool",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3180:4:1",
+                    "src": "3180:4:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -27294,63 +27294,63 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "3179:6:1"
+              "src": "3179:6:7"
             },
-            "scope": 3391,
-            "src": "3101:270:1",
+            "scope": 3860,
+            "src": "3101:270:7",
             "stateMutability": "pure",
             "virtual": false,
             "visibility": "external"
           },
           {
             "baseFunctions": [
-              3765
+              373
             ],
             "body": {
-              "id": 2400,
+              "id": 2869,
               "nodeType": "Block",
-              "src": "3628:206:1",
+              "src": "3628:206:7",
               "statements": [
                 {
                   "eventCall": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2377,
+                          "id": 2846,
                           "name": "TokenType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2138,
-                          "src": "3657:9:1",
+                          "referencedDeclaration": 2607,
+                          "src": "3657:9:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2138_$",
+                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                             "typeString": "type(enum TokenTracker.TokenType)"
                           }
                         },
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+                        "id": 2847,
                         "isConstant": false,
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                         "lValueRequested": false,
                         "memberName": "ERC721",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 2135,
-                        "src": "3657:16:1",
+                        "referencedDeclaration": 2604,
+                        "src": "3657:16:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
                         "hexValue": "31",
-                        "id": 2379,
+                        "id": 2848,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "number",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "3675:1:1",
+                        "src": "3675:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_rational_1_by_1",
                           "typeString": "int_const 1"
@@ -27358,12 +27358,12 @@
                         "value": "1"
                       },
                       {
-                        "id": 2380,
+                        "id": 2849,
                         "name": "from",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2366,
-                        "src": "3678:4:1",
+                        "referencedDeclaration": 2835,
+                        "src": "3678:4:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
@@ -27371,61 +27371,61 @@
                       },
                       {
                         "expression": {
-                          "id": 2381,
+                          "id": 2850,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "3684:3:1",
+                          "src": "3684:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_magic_message",
                             "typeString": "msg"
                           }
                         },
-                        "id": 2382,
+                        "id": 2851,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "sender",
                         "nodeType": "MemberAccess",
-                        "src": "3684:10:1",
+                        "src": "3684:10:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2383,
+                        "id": 2852,
                         "name": "operator",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2364,
-                        "src": "3696:8:1",
+                        "referencedDeclaration": 2833,
+                        "src": "3696:8:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2384,
+                        "id": 2853,
                         "name": "tokenId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2368,
-                        "src": "3706:7:1",
+                        "referencedDeclaration": 2837,
+                        "src": "3706:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         }
                       },
                       {
-                        "id": 2385,
+                        "id": 2854,
                         "name": "data",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2370,
-                        "src": "3715:4:1",
+                        "referencedDeclaration": 2839,
+                        "src": "3715:4:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_calldata_ptr",
                           "typeString": "bytes calldata"
@@ -27435,7 +27435,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -27463,18 +27463,18 @@
                           "typeString": "bytes calldata"
                         }
                       ],
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                       "name": "ReceivedToken",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
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-                      "src": "3643:13:1",
+                      "referencedDeclaration": 2624,
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                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2138_$_t_uint256_$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_uint256_$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
                         "typeString": "function (enum TokenTracker.TokenType,uint256,address,address,address,uint256,bytes memory)"
                       }
                     },
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+                    "id": 2855,
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@@ -27482,80 +27482,80 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "3643:77:1",
+                    "src": "3643:77:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
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+                  "id": 2856,
                   "nodeType": "EmitStatement",
-                  "src": "3638:82:1"
+                  "src": "3638:82:7"
                 },
                 {
                   "expression": {
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                       {
                         "expression": {
-                          "id": 2389,
+                          "id": 2858,
                           "name": "TokenType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2138,
-                          "src": "3742:9:1",
+                          "referencedDeclaration": 2607,
+                          "src": "3742:9:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2138_$",
+                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                             "typeString": "type(enum TokenTracker.TokenType)"
                           }
                         },
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+                        "id": 2859,
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                         "memberName": "ERC721",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 2135,
-                        "src": "3742:16:1",
+                        "referencedDeclaration": 2604,
+                        "src": "3742:16:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
                         "expression": {
-                          "id": 2391,
+                          "id": 2860,
                           "name": "msg",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 4294967281,
-                          "src": "3760:3:1",
+                          "src": "3760:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_magic_message",
                             "typeString": "msg"
                           }
                         },
-                        "id": 2392,
+                        "id": 2861,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "sender",
                         "nodeType": "MemberAccess",
-                        "src": "3760:10:1",
+                        "src": "3760:10:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2393,
+                        "id": 2862,
                         "name": "tokenId",
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                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2368,
-                        "src": "3772:7:1",
+                        "referencedDeclaration": 2837,
+                        "src": "3772:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -27565,7 +27565,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -27577,18 +27577,18 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2388,
+                      "id": 2857,
                       "name": "_trackToken",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2620,
-                      "src": "3730:11:1",
+                      "referencedDeclaration": 3089,
+                      "src": "3730:11:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2138_$_t_address_$_t_uint256_$returns$__$",
+                        "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                         "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                       }
                     },
-                    "id": 2394,
+                    "id": 2863,
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@@ -27596,93 +27596,93 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "3730:50:1",
+                    "src": "3730:50:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
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+                  "id": 2864,
                   "nodeType": "ExpressionStatement",
-                  "src": "3730:50:1"
+                  "src": "3730:50:7"
                 },
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                   "expression": {
                     "expression": {
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+                        "id": 2865,
                         "name": "this",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 4294967268,
-                        "src": "3797:4:1",
+                        "src": "3797:4:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_contract$_TokenTracker_$3391",
+                          "typeIdentifier": "t_contract$_TokenTracker_$3860",
                           "typeString": "contract TokenTracker"
                         }
                       },
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+                      "id": 2866,
                       "isConstant": false,
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                       "lValueRequested": false,
                       "memberName": "onERC721Received",
                       "nodeType": "MemberAccess",
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-                      "src": "3797:21:1",
+                      "referencedDeclaration": 2870,
+                      "src": "3797:21:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$",
                         "typeString": "function (address,address,uint256,bytes memory) external returns (bytes4)"
                       }
                     },
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                     "isPure": true,
                     "lValueRequested": false,
                     "memberName": "selector",
                     "nodeType": "MemberAccess",
-                    "src": "3797:30:1",
+                    "src": "3797:30:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes4",
                       "typeString": "bytes4"
                     }
                   },
-                  "functionReturnParameters": 2375,
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+                  "functionReturnParameters": 2844,
+                  "id": 2868,
                   "nodeType": "Return",
-                  "src": "3790:37:1"
+                  "src": "3790:37:7"
                 }
               ]
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             "functionSelector": "150b7a02",
-            "id": 2401,
+            "id": 2870,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "onERC721Received",
-            "nameLocation": "3469:16:1",
+            "nameLocation": "3469:16:7",
             "nodeType": "FunctionDefinition",
             "overrides": {
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+              "id": 2841,
               "nodeType": "OverrideSpecifier",
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-              "src": "3603:8:1"
+              "src": "3603:8:7"
             },
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+                  "id": 2833,
                   "mutability": "mutable",
                   "name": "operator",
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+                  "nameLocation": "3503:8:7",
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-                  "src": "3495:16:1",
+                  "scope": 2870,
+                  "src": "3495:16:7",
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@@ -27690,10 +27690,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2363,
+                    "id": 2832,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3495:7:1",
+                    "src": "3495:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -27704,13 +27704,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2366,
+                  "id": 2835,
                   "mutability": "mutable",
                   "name": "from",
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+                  "nameLocation": "3529:4:7",
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+                  "scope": 2870,
+                  "src": "3521:12:7",
                   "stateVariable": false,
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@@ -27718,10 +27718,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2365,
+                    "id": 2834,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3521:7:1",
+                    "src": "3521:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -27732,13 +27732,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2368,
+                  "id": 2837,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "3551:7:1",
+                  "nameLocation": "3551:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2401,
-                  "src": "3543:15:1",
+                  "scope": 2870,
+                  "src": "3543:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -27746,10 +27746,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2367,
+                    "id": 2836,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3543:7:1",
+                    "src": "3543:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -27759,13 +27759,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2370,
+                  "id": 2839,
                   "mutability": "mutable",
                   "name": "data",
-                  "nameLocation": "3583:4:1",
+                  "nameLocation": "3583:4:7",
                   "nodeType": "VariableDeclaration",
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-                  "src": "3568:19:1",
+                  "scope": 2870,
+                  "src": "3568:19:7",
                   "stateVariable": false,
                   "storageLocation": "calldata",
                   "typeDescriptions": {
@@ -27773,10 +27773,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 2369,
+                    "id": 2838,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3568:5:1",
+                    "src": "3568:5:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -27785,21 +27785,21 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "3485:108:1"
+              "src": "3485:108:7"
             },
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+              "id": 2844,
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               "parameters": [
                 {
                   "constant": false,
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+                  "id": 2843,
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                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
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-                  "src": "3621:6:1",
+                  "scope": 2870,
+                  "src": "3621:6:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -27807,10 +27807,10 @@
                     "typeString": "bytes4"
                   },
                   "typeName": {
-                    "id": 2373,
+                    "id": 2842,
                     "name": "bytes4",
                     "nodeType": "ElementaryTypeName",
-                    "src": "3621:6:1",
+                    "src": "3621:6:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes4",
                       "typeString": "bytes4"
@@ -27819,93 +27819,93 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "3620:8:1"
+              "src": "3620:8:7"
             },
-            "scope": 3391,
-            "src": "3460:374:1",
+            "scope": 3860,
+            "src": "3460:374:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "external"
           },
           {
             "body": {
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+              "id": 2965,
               "nodeType": "Block",
-              "src": "3946:546:1",
+              "src": "3946:546:7",
               "statements": [
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+                    2887
                   ],
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                       "name": "tokenTypes",
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+                      "nameLocation": "3975:10:7",
                       "nodeType": "VariableDeclaration",
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-                      "src": "3956:29:1",
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+                      "src": "3956:29:7",
                       "stateVariable": false,
                       "storageLocation": "memory",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr",
+                        "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr",
                         "typeString": "enum TokenTracker.TokenType[]"
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2416,
+                          "id": 2885,
                           "nodeType": "UserDefinedTypeName",
                           "pathNode": {
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+                            "id": 2884,
                             "name": "TokenType",
                             "nodeType": "IdentifierPath",
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+                            "referencedDeclaration": 2607,
+                            "src": "3956:9:7"
                           },
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-                          "src": "3956:9:1",
+                          "referencedDeclaration": 2607,
+                          "src": "3956:9:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
-                        "id": 2417,
+                        "id": 2886,
                         "nodeType": "ArrayTypeName",
-                        "src": "3956:11:1",
+                        "src": "3956:11:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_storage_ptr",
+                          "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_storage_ptr",
                           "typeString": "enum TokenTracker.TokenType[]"
                         }
                       },
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2426,
+                  "id": 2895,
                   "initialValue": {
                     "arguments": [
                       {
                         "expression": {
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+                          "id": 2892,
                           "name": "trackedTokens",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2240,
-                          "src": "4004:13:1",
+                          "referencedDeclaration": 2709,
+                          "src": "4004:13:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                             "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                           }
                         },
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                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "length",
                         "nodeType": "MemberAccess",
-                        "src": "4004:20:1",
+                        "src": "4004:20:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -27919,45 +27919,45 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2422,
+                      "id": 2891,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "NewExpression",
-                      "src": "3988:15:1",
+                      "src": "3988:15:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_objectcreation_pure$_t_uint256_$returns$_t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr_$",
+                        "typeIdentifier": "t_function_objectcreation_pure$_t_uint256_$returns$_t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr_$",
                         "typeString": "function (uint256) pure returns (enum TokenTracker.TokenType[] memory)"
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2420,
+                          "id": 2889,
                           "nodeType": "UserDefinedTypeName",
                           "pathNode": {
-                            "id": 2419,
+                            "id": 2888,
                             "name": "TokenType",
                             "nodeType": "IdentifierPath",
-                            "referencedDeclaration": 2138,
-                            "src": "3992:9:1"
+                            "referencedDeclaration": 2607,
+                            "src": "3992:9:7"
                           },
-                          "referencedDeclaration": 2138,
-                          "src": "3992:9:1",
+                          "referencedDeclaration": 2607,
+                          "src": "3992:9:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
-                        "id": 2421,
+                        "id": 2890,
                         "nodeType": "ArrayTypeName",
-                        "src": "3992:11:1",
+                        "src": "3992:11:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_storage_ptr",
+                          "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_storage_ptr",
                           "typeString": "enum TokenTracker.TokenType[]"
                         }
                       }
                     },
-                    "id": 2425,
+                    "id": 2894,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -27965,30 +27965,30 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "3988:37:1",
+                    "src": "3988:37:7",
                     "tryCall": false,
                     "typeDescriptions": {
-                      "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr",
+                      "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr",
                       "typeString": "enum TokenTracker.TokenType[] memory"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "3956:69:1"
+                  "src": "3956:69:7"
                 },
                 {
                   "assignments": [
-                    2431
+                    2900
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2431,
+                      "id": 2900,
                       "mutability": "mutable",
                       "name": "contractAddresses",
-                      "nameLocation": "4052:17:1",
+                      "nameLocation": "4052:17:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2496,
-                      "src": "4035:34:1",
+                      "scope": 2965,
+                      "src": "4035:34:7",
                       "stateVariable": false,
                       "storageLocation": "memory",
                       "typeDescriptions": {
@@ -27997,18 +27997,18 @@
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2429,
+                          "id": 2898,
                           "name": "address",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4035:7:1",
+                          "src": "4035:7:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
                             "typeString": "address"
                           }
                         },
-                        "id": 2430,
+                        "id": 2899,
                         "nodeType": "ArrayTypeName",
-                        "src": "4035:9:1",
+                        "src": "4035:9:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_address_$dyn_storage_ptr",
                           "typeString": "address[]"
@@ -28017,30 +28017,30 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2438,
+                  "id": 2907,
                   "initialValue": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2435,
+                          "id": 2904,
                           "name": "trackedTokens",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2240,
-                          "src": "4086:13:1",
+                          "referencedDeclaration": 2709,
+                          "src": "4086:13:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                             "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                           }
                         },
-                        "id": 2436,
+                        "id": 2905,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "length",
                         "nodeType": "MemberAccess",
-                        "src": "4086:20:1",
+                        "src": "4086:20:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -28054,39 +28054,39 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2434,
+                      "id": 2903,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "NewExpression",
-                      "src": "4072:13:1",
+                      "src": "4072:13:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_objectcreation_pure$_t_uint256_$returns$_t_array$_t_address_$dyn_memory_ptr_$",
                         "typeString": "function (uint256) pure returns (address[] memory)"
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2432,
+                          "id": 2901,
                           "name": "address",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4076:7:1",
+                          "src": "4076:7:7",
                           "stateMutability": "nonpayable",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
                             "typeString": "address"
                           }
                         },
-                        "id": 2433,
+                        "id": 2902,
                         "nodeType": "ArrayTypeName",
-                        "src": "4076:9:1",
+                        "src": "4076:9:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_address_$dyn_storage_ptr",
                           "typeString": "address[]"
                         }
                       }
                     },
-                    "id": 2437,
+                    "id": 2906,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -28094,7 +28094,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "4072:35:1",
+                    "src": "4072:35:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_address_$dyn_memory_ptr",
@@ -28102,22 +28102,22 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "4035:72:1"
+                  "src": "4035:72:7"
                 },
                 {
                   "assignments": [
-                    2443
+                    2912
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2443,
+                      "id": 2912,
                       "mutability": "mutable",
                       "name": "tokenIds",
-                      "nameLocation": "4134:8:1",
+                      "nameLocation": "4134:8:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2496,
-                      "src": "4117:25:1",
+                      "scope": 2965,
+                      "src": "4117:25:7",
                       "stateVariable": false,
                       "storageLocation": "memory",
                       "typeDescriptions": {
@@ -28126,18 +28126,18 @@
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2441,
+                          "id": 2910,
                           "name": "uint256",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4117:7:1",
+                          "src": "4117:7:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
-                        "id": 2442,
+                        "id": 2911,
                         "nodeType": "ArrayTypeName",
-                        "src": "4117:9:1",
+                        "src": "4117:9:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr",
                           "typeString": "uint256[]"
@@ -28146,30 +28146,30 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2450,
+                  "id": 2919,
                   "initialValue": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2447,
+                          "id": 2916,
                           "name": "trackedTokens",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2240,
-                          "src": "4159:13:1",
+                          "referencedDeclaration": 2709,
+                          "src": "4159:13:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                             "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                           }
                         },
-                        "id": 2448,
+                        "id": 2917,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "length",
                         "nodeType": "MemberAccess",
-                        "src": "4159:20:1",
+                        "src": "4159:20:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -28183,38 +28183,38 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2446,
+                      "id": 2915,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "NewExpression",
-                      "src": "4145:13:1",
+                      "src": "4145:13:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_objectcreation_pure$_t_uint256_$returns$_t_array$_t_uint256_$dyn_memory_ptr_$",
                         "typeString": "function (uint256) pure returns (uint256[] memory)"
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2444,
+                          "id": 2913,
                           "name": "uint256",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4149:7:1",
+                          "src": "4149:7:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
-                        "id": 2445,
+                        "id": 2914,
                         "nodeType": "ArrayTypeName",
-                        "src": "4149:9:1",
+                        "src": "4149:9:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr",
                           "typeString": "uint256[]"
                         }
                       }
                     },
-                    "id": 2449,
+                    "id": 2918,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -28222,7 +28222,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "4145:35:1",
+                    "src": "4145:35:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint256_$dyn_memory_ptr",
@@ -28230,42 +28230,42 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "4117:63:1"
+                  "src": "4117:63:7"
                 },
                 {
                   "body": {
-                    "id": 2489,
+                    "id": 2958,
                     "nodeType": "Block",
-                    "src": "4240:188:1",
+                    "src": "4240:188:7",
                     "statements": [
                       {
                         "expression": {
-                          "id": 2469,
+                          "id": 2938,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
                             "baseExpression": {
-                              "id": 2462,
+                              "id": 2931,
                               "name": "tokenTypes",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2418,
-                              "src": "4254:10:1",
+                              "referencedDeclaration": 2887,
+                              "src": "4254:10:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr",
+                                "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr",
                                 "typeString": "enum TokenTracker.TokenType[] memory"
                               }
                             },
-                            "id": 2464,
+                            "id": 2933,
                             "indexExpression": {
-                              "id": 2463,
+                              "id": 2932,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2452,
-                              "src": "4265:1:1",
+                              "referencedDeclaration": 2921,
+                              "src": "4265:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -28276,9 +28276,9 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "4254:13:1",
+                            "src": "4254:13:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             }
                           },
@@ -28287,25 +28287,25 @@
                           "rightHandSide": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2465,
+                                "id": 2934,
                                 "name": "trackedTokens",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2240,
-                                "src": "4270:13:1",
+                                "referencedDeclaration": 2709,
+                                "src": "4270:13:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                   "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                 }
                               },
-                              "id": 2467,
+                              "id": 2936,
                               "indexExpression": {
-                                "id": 2466,
+                                "id": 2935,
                                 "name": "i",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2452,
-                                "src": "4284:1:1",
+                                "referencedDeclaration": 2921,
+                                "src": "4284:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
@@ -28316,64 +28316,64 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "4270:16:1",
+                              "src": "4270:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref"
                               }
                             },
-                            "id": 2468,
+                            "id": 2937,
                             "isConstant": false,
                             "isLValue": true,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "tokenType",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2226,
-                            "src": "4270:26:1",
+                            "referencedDeclaration": 2695,
+                            "src": "4270:26:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             }
                           },
-                          "src": "4254:42:1",
+                          "src": "4254:42:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
-                        "id": 2470,
+                        "id": 2939,
                         "nodeType": "ExpressionStatement",
-                        "src": "4254:42:1"
+                        "src": "4254:42:7"
                       },
                       {
                         "expression": {
-                          "id": 2478,
+                          "id": 2947,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
                             "baseExpression": {
-                              "id": 2471,
+                              "id": 2940,
                               "name": "contractAddresses",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2431,
-                              "src": "4310:17:1",
+                              "referencedDeclaration": 2900,
+                              "src": "4310:17:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_address_$dyn_memory_ptr",
                                 "typeString": "address[] memory"
                               }
                             },
-                            "id": 2473,
+                            "id": 2942,
                             "indexExpression": {
-                              "id": 2472,
+                              "id": 2941,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2452,
-                              "src": "4328:1:1",
+                              "referencedDeclaration": 2921,
+                              "src": "4328:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -28384,7 +28384,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "4310:20:1",
+                            "src": "4310:20:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_address",
                               "typeString": "address"
@@ -28395,25 +28395,25 @@
                           "rightHandSide": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2474,
+                                "id": 2943,
                                 "name": "trackedTokens",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2240,
-                                "src": "4333:13:1",
+                                "referencedDeclaration": 2709,
+                                "src": "4333:13:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                   "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                 }
                               },
-                              "id": 2476,
+                              "id": 2945,
                               "indexExpression": {
-                                "id": 2475,
+                                "id": 2944,
                                 "name": "i",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2452,
-                                "src": "4347:1:1",
+                                "referencedDeclaration": 2921,
+                                "src": "4347:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
@@ -28424,64 +28424,64 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "4333:16:1",
+                              "src": "4333:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref"
                               }
                             },
-                            "id": 2477,
+                            "id": 2946,
                             "isConstant": false,
                             "isLValue": true,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "contractAddress",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2228,
-                            "src": "4333:32:1",
+                            "referencedDeclaration": 2697,
+                            "src": "4333:32:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_address",
                               "typeString": "address"
                             }
                           },
-                          "src": "4310:55:1",
+                          "src": "4310:55:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
                             "typeString": "address"
                           }
                         },
-                        "id": 2479,
+                        "id": 2948,
                         "nodeType": "ExpressionStatement",
-                        "src": "4310:55:1"
+                        "src": "4310:55:7"
                       },
                       {
                         "expression": {
-                          "id": 2487,
+                          "id": 2956,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
                             "baseExpression": {
-                              "id": 2480,
+                              "id": 2949,
                               "name": "tokenIds",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2443,
-                              "src": "4379:8:1",
+                              "referencedDeclaration": 2912,
+                              "src": "4379:8:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_memory_ptr",
                                 "typeString": "uint256[] memory"
                               }
                             },
-                            "id": 2482,
+                            "id": 2951,
                             "indexExpression": {
-                              "id": 2481,
+                              "id": 2950,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2452,
-                              "src": "4388:1:1",
+                              "referencedDeclaration": 2921,
+                              "src": "4388:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -28492,7 +28492,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "4379:11:1",
+                            "src": "4379:11:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -28503,25 +28503,25 @@
                           "rightHandSide": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2483,
+                                "id": 2952,
                                 "name": "trackedTokens",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2240,
-                                "src": "4393:13:1",
+                                "referencedDeclaration": 2709,
+                                "src": "4393:13:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                   "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                 }
                               },
-                              "id": 2485,
+                              "id": 2954,
                               "indexExpression": {
-                                "id": 2484,
+                                "id": 2953,
                                 "name": "i",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2452,
-                                "src": "4407:1:1",
+                                "referencedDeclaration": 2921,
+                                "src": "4407:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
@@ -28532,35 +28532,35 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "4393:16:1",
+                              "src": "4393:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref"
                               }
                             },
-                            "id": 2486,
+                            "id": 2955,
                             "isConstant": false,
                             "isLValue": true,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "tokenId",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2230,
-                            "src": "4393:24:1",
+                            "referencedDeclaration": 2699,
+                            "src": "4393:24:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "4379:38:1",
+                          "src": "4379:38:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
-                        "id": 2488,
+                        "id": 2957,
                         "nodeType": "ExpressionStatement",
-                        "src": "4379:38:1"
+                        "src": "4379:38:7"
                       }
                     ]
                   },
@@ -28569,18 +28569,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2458,
+                    "id": 2927,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 2455,
+                      "id": 2924,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2452,
-                      "src": "4209:1:1",
+                      "referencedDeclaration": 2921,
+                      "src": "4209:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -28590,51 +28590,51 @@
                     "operator": "<",
                     "rightExpression": {
                       "expression": {
-                        "id": 2456,
+                        "id": 2925,
                         "name": "trackedTokens",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2240,
-                        "src": "4213:13:1",
+                        "referencedDeclaration": 2709,
+                        "src": "4213:13:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                           "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                         }
                       },
-                      "id": 2457,
+                      "id": 2926,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "4213:20:1",
+                      "src": "4213:20:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "4209:24:1",
+                    "src": "4209:24:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2490,
+                  "id": 2959,
                   "initializationExpression": {
                     "assignments": [
-                      2452
+                      2921
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 2452,
+                        "id": 2921,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "4202:1:1",
+                        "nameLocation": "4202:1:7",
                         "nodeType": "VariableDeclaration",
-                        "scope": 2490,
-                        "src": "4195:8:1",
+                        "scope": 2959,
+                        "src": "4195:8:7",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -28642,10 +28642,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 2451,
+                          "id": 2920,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "4195:6:1",
+                          "src": "4195:6:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -28654,17 +28654,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2454,
+                    "id": 2923,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 2453,
+                      "id": 2922,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "4206:1:1",
+                      "src": "4206:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -28672,11 +28672,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "4195:12:1"
+                    "src": "4195:12:7"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 2460,
+                      "id": 2929,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -28684,14 +28684,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "4235:3:1",
+                      "src": "4235:3:7",
                       "subExpression": {
-                        "id": 2459,
+                        "id": 2928,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2452,
-                        "src": "4235:1:1",
+                        "referencedDeclaration": 2921,
+                        "src": "4235:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -28702,129 +28702,129 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 2461,
+                    "id": 2930,
                     "nodeType": "ExpressionStatement",
-                    "src": "4235:3:1"
+                    "src": "4235:3:7"
                   },
                   "nodeType": "ForStatement",
-                  "src": "4190:238:1"
+                  "src": "4190:238:7"
                 },
                 {
                   "expression": {
                     "components": [
                       {
-                        "id": 2491,
+                        "id": 2960,
                         "name": "tokenTypes",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2418,
-                        "src": "4445:10:1",
+                        "referencedDeclaration": 2887,
+                        "src": "4445:10:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr",
+                          "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr",
                           "typeString": "enum TokenTracker.TokenType[] memory"
                         }
                       },
                       {
-                        "id": 2492,
+                        "id": 2961,
                         "name": "contractAddresses",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2431,
-                        "src": "4457:17:1",
+                        "referencedDeclaration": 2900,
+                        "src": "4457:17:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_address_$dyn_memory_ptr",
                           "typeString": "address[] memory"
                         }
                       },
                       {
-                        "id": 2493,
+                        "id": 2962,
                         "name": "tokenIds",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2443,
-                        "src": "4476:8:1",
+                        "referencedDeclaration": 2912,
+                        "src": "4476:8:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_memory_ptr",
                           "typeString": "uint256[] memory"
                         }
                       }
                     ],
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+                    "id": 2963,
                     "isConstant": false,
                     "isInlineArray": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "nodeType": "TupleExpression",
-                    "src": "4444:41:1",
+                    "src": "4444:41:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_tuple$_t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr_$_t_array$_t_address_$dyn_memory_ptr_$_t_array$_t_uint256_$dyn_memory_ptr_$",
+                      "typeIdentifier": "t_tuple$_t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr_$_t_array$_t_address_$dyn_memory_ptr_$_t_array$_t_uint256_$dyn_memory_ptr_$",
                       "typeString": "tuple(enum TokenTracker.TokenType[] memory,address[] memory,uint256[] memory)"
                     }
                   },
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-                  "id": 2495,
+                  "functionReturnParameters": 2882,
+                  "id": 2964,
                   "nodeType": "Return",
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+                  "src": "4437:48:7"
                 }
               ]
             },
             "functionSelector": "695def4c",
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+            "id": 2966,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "getTrackedTokens",
-            "nameLocation": "3849:16:1",
+            "nameLocation": "3849:16:7",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2402,
+              "id": 2871,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "3865:2:1"
+              "src": "3865:2:7"
             },
             "returnParameters": {
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+              "id": 2882,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
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+                  "id": 2875,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2497,
-                  "src": "3891:18:1",
+                  "scope": 2966,
+                  "src": "3891:18:7",
                   "stateVariable": false,
                   "storageLocation": "memory",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_memory_ptr",
+                    "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr",
                     "typeString": "enum TokenTracker.TokenType[]"
                   },
                   "typeName": {
                     "baseType": {
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+                      "id": 2873,
                       "nodeType": "UserDefinedTypeName",
                       "pathNode": {
-                        "id": 2403,
+                        "id": 2872,
                         "name": "TokenType",
                         "nodeType": "IdentifierPath",
-                        "referencedDeclaration": 2138,
-                        "src": "3891:9:1"
+                        "referencedDeclaration": 2607,
+                        "src": "3891:9:7"
                       },
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-                      "src": "3891:9:1",
+                      "referencedDeclaration": 2607,
+                      "src": "3891:9:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_TokenType_$2138",
+                        "typeIdentifier": "t_enum$_TokenType_$2607",
                         "typeString": "enum TokenTracker.TokenType"
                       }
                     },
-                    "id": 2405,
+                    "id": 2874,
                     "nodeType": "ArrayTypeName",
-                    "src": "3891:11:1",
+                    "src": "3891:11:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_array$_t_enum$_TokenType_$2138_$dyn_storage_ptr",
+                      "typeIdentifier": "t_array$_t_enum$_TokenType_$2607_$dyn_storage_ptr",
                       "typeString": "enum TokenTracker.TokenType[]"
                     }
                   },
@@ -28832,13 +28832,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2409,
+                  "id": 2878,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2497,
-                  "src": "3911:16:1",
+                  "scope": 2966,
+                  "src": "3911:16:7",
                   "stateVariable": false,
                   "storageLocation": "memory",
                   "typeDescriptions": {
@@ -28847,19 +28847,19 @@
                   },
                   "typeName": {
                     "baseType": {
-                      "id": 2407,
+                      "id": 2876,
                       "name": "address",
                       "nodeType": "ElementaryTypeName",
-                      "src": "3911:7:1",
+                      "src": "3911:7:7",
                       "stateMutability": "nonpayable",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address",
                         "typeString": "address"
                       }
                     },
-                    "id": 2408,
+                    "id": 2877,
                     "nodeType": "ArrayTypeName",
-                    "src": "3911:9:1",
+                    "src": "3911:9:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_address_$dyn_storage_ptr",
                       "typeString": "address[]"
@@ -28869,13 +28869,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2412,
+                  "id": 2881,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2497,
-                  "src": "3929:16:1",
+                  "scope": 2966,
+                  "src": "3929:16:7",
                   "stateVariable": false,
                   "storageLocation": "memory",
                   "typeDescriptions": {
@@ -28884,18 +28884,18 @@
                   },
                   "typeName": {
                     "baseType": {
-                      "id": 2410,
+                      "id": 2879,
                       "name": "uint256",
                       "nodeType": "ElementaryTypeName",
-                      "src": "3929:7:1",
+                      "src": "3929:7:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "id": 2411,
+                    "id": 2880,
                     "nodeType": "ArrayTypeName",
-                    "src": "3929:9:1",
+                    "src": "3929:9:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr",
                       "typeString": "uint256[]"
@@ -28904,34 +28904,34 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "3890:56:1"
+              "src": "3890:56:7"
             },
-            "scope": 3391,
-            "src": "3840:652:1",
+            "scope": 3860,
+            "src": "3840:652:7",
             "stateMutability": "view",
             "virtual": false,
             "visibility": "external"
           },
           {
             "body": {
-              "id": 2619,
+              "id": 3088,
               "nodeType": "Block",
-              "src": "4593:937:1",
+              "src": "4593:937:7",
               "statements": [
                 {
                   "assignments": [
-                    2508
+                    2977
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2508,
+                      "id": 2977,
                       "mutability": "mutable",
                       "name": "key",
-                      "nameLocation": "4611:3:1",
+                      "nameLocation": "4611:3:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2619,
-                      "src": "4603:11:1",
+                      "scope": 3088,
+                      "src": "4603:11:7",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -28939,10 +28939,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 2507,
+                        "id": 2976,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "4603:7:1",
+                        "src": "4603:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -28951,7 +28951,7 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2533,
+                  "id": 3002,
                   "initialValue": {
                     "arguments": [
                       {
@@ -28961,14 +28961,14 @@
                               {
                                 "arguments": [
                                   {
-                                    "id": 2517,
+                                    "id": 2986,
                                     "name": "tokenType",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2500,
-                                    "src": "4656:9:1",
+                                    "referencedDeclaration": 2969,
+                                    "src": "4656:9:7",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                                      "typeIdentifier": "t_enum$_TokenType_$2607",
                                       "typeString": "enum TokenTracker.TokenType"
                                     }
                                   }
@@ -28976,30 +28976,30 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                                      "typeIdentifier": "t_enum$_TokenType_$2607",
                                       "typeString": "enum TokenTracker.TokenType"
                                     }
                                   ],
-                                  "id": 2516,
+                                  "id": 2985,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "4648:7:1",
+                                  "src": "4648:7:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_uint256_$",
                                     "typeString": "type(uint256)"
                                   },
                                   "typeName": {
-                                    "id": 2515,
+                                    "id": 2984,
                                     "name": "uint256",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "4648:7:1",
+                                    "src": "4648:7:7",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 2518,
+                                "id": 2987,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -29007,7 +29007,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "4648:18:1",
+                                "src": "4648:18:7",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
@@ -29022,26 +29022,26 @@
                                   "typeString": "uint256"
                                 }
                               ],
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+                              "id": 2983,
                               "isConstant": false,
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                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "4640:7:1",
+                              "src": "4640:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 2513,
+                                "id": 2982,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "4640:7:1",
+                                "src": "4640:7:7",
                                 "typeDescriptions": {}
                               }
                             },
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+                            "id": 2988,
                             "isConstant": false,
                             "isLValue": false,
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@@ -29049,7 +29049,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "4640:27:1",
+                            "src": "4640:27:7",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -29061,12 +29061,12 @@
                               {
                                 "arguments": [
                                   {
-                                    "id": 2524,
+                                    "id": 2993,
                                     "name": "contractAddress",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2502,
-                                    "src": "4685:15:1",
+                                    "referencedDeclaration": 2971,
+                                    "src": "4685:15:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_address",
                                       "typeString": "address"
@@ -29080,26 +29080,26 @@
                                       "typeString": "address"
                                     }
                                   ],
-                                  "id": 2523,
+                                  "id": 2992,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "4677:7:1",
+                                  "src": "4677:7:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes20_$",
                                     "typeString": "type(bytes20)"
                                   },
                                   "typeName": {
-                                    "id": 2522,
+                                    "id": 2991,
                                     "name": "bytes20",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "4677:7:1",
+                                    "src": "4677:7:7",
                                     "typeDescriptions": {}
                                   }
                                 },
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+                                "id": 2994,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -29107,7 +29107,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "4677:24:1",
+                                "src": "4677:24:7",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes20",
@@ -29122,26 +29122,26 @@
                                   "typeString": "bytes20"
                                 }
                               ],
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+                              "id": 2990,
                               "isConstant": false,
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                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "4669:7:1",
+                              "src": "4669:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 2520,
+                                "id": 2989,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "4669:7:1",
+                                "src": "4669:7:7",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 2526,
+                            "id": 2995,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -29149,7 +29149,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "4669:33:1",
+                            "src": "4669:33:7",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -29159,12 +29159,12 @@
                           {
                             "arguments": [
                               {
-                                "id": 2529,
+                                "id": 2998,
                                 "name": "tokenId",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2504,
-                                "src": "4712:7:1",
+                                "referencedDeclaration": 2973,
+                                "src": "4712:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -29178,26 +29178,26 @@
                                   "typeString": "uint256"
                                 }
                               ],
-                              "id": 2528,
+                              "id": 2997,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "4704:7:1",
+                              "src": "4704:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 2527,
+                                "id": 2996,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "4704:7:1",
+                                "src": "4704:7:7",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 2530,
+                            "id": 2999,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -29205,7 +29205,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "4704:16:1",
+                            "src": "4704:16:7",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -29229,39 +29229,39 @@
                             }
                           ],
                           "expression": {
-                            "id": 2511,
+                            "id": 2980,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "4627:5:1",
+                            "src": "4627:5:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                               "typeString": "type(bytes storage pointer)"
                             },
                             "typeName": {
-                              "id": 2510,
+                              "id": 2979,
                               "name": "bytes",
                               "nodeType": "ElementaryTypeName",
-                              "src": "4627:5:1",
+                              "src": "4627:5:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 2512,
+                          "id": 2981,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "concat",
                           "nodeType": "MemberAccess",
-                          "src": "4627:12:1",
+                          "src": "4627:12:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                             "typeString": "function () pure returns (bytes memory)"
                           }
                         },
-                        "id": 2531,
+                        "id": 3000,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -29269,7 +29269,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "4627:94:1",
+                        "src": "4627:94:7",
                         "tryCall": false,
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_memory_ptr",
@@ -29284,18 +29284,18 @@
                           "typeString": "bytes memory"
                         }
                       ],
-                      "id": 2509,
+                      "id": 2978,
                       "name": "keccak256",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 4294967288,
-                      "src": "4617:9:1",
+                      "src": "4617:9:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                         "typeString": "function (bytes memory) pure returns (bytes32)"
                       }
                     },
-                    "id": 2532,
+                    "id": 3001,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -29303,7 +29303,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "4617:105:1",
+                    "src": "4617:105:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
@@ -29311,7 +29311,7 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "4603:119:1"
+                  "src": "4603:119:7"
                 },
                 {
                   "condition": {
@@ -29319,7 +29319,7 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2539,
+                    "id": 3008,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -29327,25 +29327,25 @@
                     "leftExpression": {
                       "expression": {
                         "baseExpression": {
-                          "id": 2534,
+                          "id": 3003,
                           "name": "trackedTokenPositions",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2236,
-                          "src": "4736:21:1",
+                          "referencedDeclaration": 2705,
+                          "src": "4736:21:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                             "typeString": "mapping(bytes32 => uint256[] storage ref)"
                           }
                         },
-                        "id": 2536,
+                        "id": 3005,
                         "indexExpression": {
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+                          "id": 3004,
                           "name": "key",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2508,
-                          "src": "4758:3:1",
+                          "referencedDeclaration": 2977,
+                          "src": "4758:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
@@ -29356,20 +29356,20 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "4736:26:1",
+                        "src": "4736:26:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                           "typeString": "uint256[] storage ref"
                         }
                       },
-                      "id": 2537,
+                      "id": 3006,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "4736:33:1",
+                      "src": "4736:33:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
@@ -29379,54 +29379,54 @@
                     "operator": ">",
                     "rightExpression": {
                       "hexValue": "30",
-                      "id": 2538,
+                      "id": 3007,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "4772:1:1",
+                      "src": "4772:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
                       },
                       "value": "0"
                     },
-                    "src": "4736:37:1",
+                    "src": "4736:37:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
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+                  "id": 3058,
                   "nodeType": "IfStatement",
-                  "src": "4732:549:1",
+                  "src": "4732:549:7",
                   "trueBody": {
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+                    "id": 3057,
                     "nodeType": "Block",
-                    "src": "4775:506:1",
+                    "src": "4775:506:7",
                     "statements": [
                       {
                         "body": {
-                          "id": 2586,
+                          "id": 3055,
                           "nodeType": "Block",
-                          "src": "4852:419:1",
+                          "src": "4852:419:7",
                           "statements": [
                             {
                               "assignments": [
-                                2554
+                                3023
                               ],
                               "declarations": [
                                 {
                                   "constant": false,
-                                  "id": 2554,
+                                  "id": 3023,
                                   "mutability": "mutable",
                                   "name": "j",
-                                  "nameLocation": "4878:1:1",
+                                  "nameLocation": "4878:1:7",
                                   "nodeType": "VariableDeclaration",
-                                  "scope": 2586,
-                                  "src": "4870:9:1",
+                                  "scope": 3055,
+                                  "src": "4870:9:7",
                                   "stateVariable": false,
                                   "storageLocation": "default",
                                   "typeDescriptions": {
@@ -29434,10 +29434,10 @@
                                     "typeString": "uint256"
                                   },
                                   "typeName": {
-                                    "id": 2553,
+                                    "id": 3022,
                                     "name": "uint256",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "4870:7:1",
+                                    "src": "4870:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint256",
                                       "typeString": "uint256"
@@ -29446,29 +29446,29 @@
                                   "visibility": "internal"
                                 }
                               ],
-                              "id": 2560,
+                              "id": 3029,
                               "initialValue": {
                                 "baseExpression": {
                                   "baseExpression": {
-                                    "id": 2555,
+                                    "id": 3024,
                                     "name": "trackedTokenPositions",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2236,
-                                    "src": "4882:21:1",
+                                    "referencedDeclaration": 2705,
+                                    "src": "4882:21:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                       "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                     }
                                   },
-                                  "id": 2557,
+                                  "id": 3026,
                                   "indexExpression": {
-                                    "id": 2556,
+                                    "id": 3025,
                                     "name": "key",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2508,
-                                    "src": "4904:3:1",
+                                    "referencedDeclaration": 2977,
+                                    "src": "4904:3:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes32",
                                       "typeString": "bytes32"
@@ -29479,20 +29479,20 @@
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "nodeType": "IndexAccess",
-                                  "src": "4882:26:1",
+                                  "src": "4882:26:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                     "typeString": "uint256[] storage ref"
                                   }
                                 },
-                                "id": 2559,
+                                "id": 3028,
                                 "indexExpression": {
-                                  "id": 2558,
+                                  "id": 3027,
                                   "name": "i",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2541,
-                                  "src": "4909:1:1",
+                                  "referencedDeclaration": 3010,
+                                  "src": "4909:1:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint32",
                                     "typeString": "uint32"
@@ -29503,22 +29503,22 @@
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "nodeType": "IndexAccess",
-                                "src": "4882:29:1",
+                                "src": "4882:29:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
                                 }
                               },
                               "nodeType": "VariableDeclarationStatement",
-                              "src": "4870:41:1"
+                              "src": "4870:41:7"
                             },
                             {
                               "condition": {
                                 "commonType": {
-                                  "typeIdentifier": "t_enum$_TokenType_$2138",
+                                  "typeIdentifier": "t_enum$_TokenType_$2607",
                                   "typeString": "enum TokenTracker.TokenType"
                                 },
-                                "id": 2566,
+                                "id": 3035,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -29526,25 +29526,25 @@
                                 "leftExpression": {
                                   "expression": {
                                     "baseExpression": {
-                                      "id": 2561,
+                                      "id": 3030,
                                       "name": "trackedTokens",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2240,
-                                      "src": "4933:13:1",
+                                      "referencedDeclaration": 2709,
+                                      "src": "4933:13:7",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                         "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                       }
                                     },
-                                    "id": 2563,
+                                    "id": 3032,
                                     "indexExpression": {
-                                      "id": 2562,
+                                      "id": 3031,
                                       "name": "j",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2554,
-                                      "src": "4947:1:1",
+                                      "referencedDeclaration": 3023,
+                                      "src": "4947:1:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -29555,53 +29555,53 @@
                                     "isPure": false,
                                     "lValueRequested": false,
                                     "nodeType": "IndexAccess",
-                                    "src": "4933:16:1",
+                                    "src": "4933:16:7",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                      "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                       "typeString": "struct TokenTracker.TrackedToken storage ref"
                                     }
                                   },
-                                  "id": 2564,
+                                  "id": 3033,
                                   "isConstant": false,
                                   "isLValue": true,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "memberName": "tokenType",
                                   "nodeType": "MemberAccess",
-                                  "referencedDeclaration": 2226,
-                                  "src": "4933:26:1",
+                                  "referencedDeclaration": 2695,
+                                  "src": "4933:26:7",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                                    "typeIdentifier": "t_enum$_TokenType_$2607",
                                     "typeString": "enum TokenTracker.TokenType"
                                   }
                                 },
                                 "nodeType": "BinaryOperation",
                                 "operator": "!=",
                                 "rightExpression": {
-                                  "id": 2565,
+                                  "id": 3034,
                                   "name": "tokenType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2500,
-                                  "src": "4963:9:1",
+                                  "referencedDeclaration": 2969,
+                                  "src": "4963:9:7",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                                    "typeIdentifier": "t_enum$_TokenType_$2607",
                                     "typeString": "enum TokenTracker.TokenType"
                                   }
                                 },
-                                "src": "4933:39:1",
+                                "src": "4933:39:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bool",
                                   "typeString": "bool"
                                 }
                               },
-                              "id": 2568,
+                              "id": 3037,
                               "nodeType": "IfStatement",
-                              "src": "4929:53:1",
+                              "src": "4929:53:7",
                               "trueBody": {
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+                                "id": 3036,
                                 "nodeType": "Continue",
-                                "src": "4974:8:1"
+                                "src": "4974:8:7"
                               }
                             },
                             {
@@ -29610,7 +29610,7 @@
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
                                 },
-                                "id": 2574,
+                                "id": 3043,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -29618,25 +29618,25 @@
                                 "leftExpression": {
                                   "expression": {
                                     "baseExpression": {
-                                      "id": 2569,
+                                      "id": 3038,
                                       "name": "trackedTokens",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2240,
-                                      "src": "5004:13:1",
+                                      "referencedDeclaration": 2709,
+                                      "src": "5004:13:7",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                         "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                       }
                                     },
-                                    "id": 2571,
+                                    "id": 3040,
                                     "indexExpression": {
-                                      "id": 2570,
+                                      "id": 3039,
                                       "name": "j",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2554,
-                                      "src": "5018:1:1",
+                                      "referencedDeclaration": 3023,
+                                      "src": "5018:1:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -29647,21 +29647,21 @@
                                     "isPure": false,
                                     "lValueRequested": false,
                                     "nodeType": "IndexAccess",
-                                    "src": "5004:16:1",
+                                    "src": "5004:16:7",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                      "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                       "typeString": "struct TokenTracker.TrackedToken storage ref"
                                     }
                                   },
-                                  "id": 2572,
+                                  "id": 3041,
                                   "isConstant": false,
                                   "isLValue": true,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "memberName": "tokenId",
                                   "nodeType": "MemberAccess",
-                                  "referencedDeclaration": 2230,
-                                  "src": "5004:24:1",
+                                  "referencedDeclaration": 2699,
+                                  "src": "5004:24:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
@@ -29670,30 +29670,30 @@
                                 "nodeType": "BinaryOperation",
                                 "operator": "!=",
                                 "rightExpression": {
-                                  "id": 2573,
+                                  "id": 3042,
                                   "name": "tokenId",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2504,
-                                  "src": "5032:7:1",
+                                  "referencedDeclaration": 2973,
+                                  "src": "5032:7:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
-                                "src": "5004:35:1",
+                                "src": "5004:35:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bool",
                                   "typeString": "bool"
                                 }
                               },
-                              "id": 2576,
+                              "id": 3045,
                               "nodeType": "IfStatement",
-                              "src": "5000:49:1",
+                              "src": "5000:49:7",
                               "trueBody": {
-                                "id": 2575,
+                                "id": 3044,
                                 "nodeType": "Continue",
-                                "src": "5041:8:1"
+                                "src": "5041:8:7"
                               }
                             },
                             {
@@ -29702,7 +29702,7 @@
                                   "typeIdentifier": "t_address",
                                   "typeString": "address"
                                 },
-                                "id": 2582,
+                                "id": 3051,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -29710,25 +29710,25 @@
                                 "leftExpression": {
                                   "expression": {
                                     "baseExpression": {
-                                      "id": 2577,
+                                      "id": 3046,
                                       "name": "trackedTokens",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2240,
-                                      "src": "5071:13:1",
+                                      "referencedDeclaration": 2709,
+                                      "src": "5071:13:7",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                         "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                       }
                                     },
-                                    "id": 2579,
+                                    "id": 3048,
                                     "indexExpression": {
-                                      "id": 2578,
+                                      "id": 3047,
                                       "name": "j",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2554,
-                                      "src": "5085:1:1",
+                                      "referencedDeclaration": 3023,
+                                      "src": "5085:1:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -29739,21 +29739,21 @@
                                     "isPure": false,
                                     "lValueRequested": false,
                                     "nodeType": "IndexAccess",
-                                    "src": "5071:16:1",
+                                    "src": "5071:16:7",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                      "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                       "typeString": "struct TokenTracker.TrackedToken storage ref"
                                     }
                                   },
-                                  "id": 2580,
+                                  "id": 3049,
                                   "isConstant": false,
                                   "isLValue": true,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "memberName": "contractAddress",
                                   "nodeType": "MemberAccess",
-                                  "referencedDeclaration": 2228,
-                                  "src": "5071:32:1",
+                                  "referencedDeclaration": 2697,
+                                  "src": "5071:32:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
@@ -29762,37 +29762,37 @@
                                 "nodeType": "BinaryOperation",
                                 "operator": "!=",
                                 "rightExpression": {
-                                  "id": 2581,
+                                  "id": 3050,
                                   "name": "contractAddress",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2502,
-                                  "src": "5107:15:1",
+                                  "referencedDeclaration": 2971,
+                                  "src": "5107:15:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
                                   }
                                 },
-                                "src": "5071:51:1",
+                                "src": "5071:51:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bool",
                                   "typeString": "bool"
                                 }
                               },
-                              "id": 2584,
+                              "id": 3053,
                               "nodeType": "IfStatement",
-                              "src": "5067:65:1",
+                              "src": "5067:65:7",
                               "trueBody": {
-                                "id": 2583,
+                                "id": 3052,
                                 "nodeType": "Continue",
-                                "src": "5124:8:1"
+                                "src": "5124:8:7"
                               }
                             },
                             {
-                              "functionReturnParameters": 2506,
-                              "id": 2585,
+                              "functionReturnParameters": 2975,
+                              "id": 3054,
                               "nodeType": "Return",
-                              "src": "5250:7:1"
+                              "src": "5250:7:7"
                             }
                           ]
                         },
@@ -29801,18 +29801,18 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
-                          "id": 2549,
+                          "id": 3018,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 2544,
+                            "id": 3013,
                             "name": "i",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2541,
-                            "src": "4808:1:1",
+                            "referencedDeclaration": 3010,
+                            "src": "4808:1:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -29823,25 +29823,25 @@
                           "rightExpression": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2545,
+                                "id": 3014,
                                 "name": "trackedTokenPositions",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2236,
-                                "src": "4812:21:1",
+                                "referencedDeclaration": 2705,
+                                "src": "4812:21:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                   "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                 }
                               },
-                              "id": 2547,
+                              "id": 3016,
                               "indexExpression": {
-                                "id": 2546,
+                                "id": 3015,
                                 "name": "key",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2508,
-                                "src": "4834:3:1",
+                                "referencedDeclaration": 2977,
+                                "src": "4834:3:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -29852,46 +29852,46 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "4812:26:1",
+                              "src": "4812:26:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                 "typeString": "uint256[] storage ref"
                               }
                             },
-                            "id": 2548,
+                            "id": 3017,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "4812:33:1",
+                            "src": "4812:33:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "4808:37:1",
+                          "src": "4808:37:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "id": 2587,
+                        "id": 3056,
                         "initializationExpression": {
                           "assignments": [
-                            2541
+                            3010
                           ],
                           "declarations": [
                             {
                               "constant": false,
-                              "id": 2541,
+                              "id": 3010,
                               "mutability": "mutable",
                               "name": "i",
-                              "nameLocation": "4801:1:1",
+                              "nameLocation": "4801:1:7",
                               "nodeType": "VariableDeclaration",
-                              "scope": 2587,
-                              "src": "4794:8:1",
+                              "scope": 3056,
+                              "src": "4794:8:7",
                               "stateVariable": false,
                               "storageLocation": "default",
                               "typeDescriptions": {
@@ -29899,10 +29899,10 @@
                                 "typeString": "uint32"
                               },
                               "typeName": {
-                                "id": 2540,
+                                "id": 3009,
                                 "name": "uint32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "4794:6:1",
+                                "src": "4794:6:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
@@ -29911,17 +29911,17 @@
                               "visibility": "internal"
                             }
                           ],
-                          "id": 2543,
+                          "id": 3012,
                           "initialValue": {
                             "hexValue": "30",
-                            "id": 2542,
+                            "id": 3011,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "4805:1:1",
+                            "src": "4805:1:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_0_by_1",
                               "typeString": "int_const 0"
@@ -29929,11 +29929,11 @@
                             "value": "0"
                           },
                           "nodeType": "VariableDeclarationStatement",
-                          "src": "4794:12:1"
+                          "src": "4794:12:7"
                         },
                         "loopExpression": {
                           "expression": {
-                            "id": 2551,
+                            "id": 3020,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -29941,14 +29941,14 @@
                             "nodeType": "UnaryOperation",
                             "operator": "++",
                             "prefix": false,
-                            "src": "4847:3:1",
+                            "src": "4847:3:7",
                             "subExpression": {
-                              "id": 2550,
+                              "id": 3019,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2541,
-                              "src": "4847:1:1",
+                              "referencedDeclaration": 3010,
+                              "src": "4847:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -29959,90 +29959,90 @@
                               "typeString": "uint32"
                             }
                           },
-                          "id": 2552,
+                          "id": 3021,
                           "nodeType": "ExpressionStatement",
-                          "src": "4847:3:1"
+                          "src": "4847:3:7"
                         },
                         "nodeType": "ForStatement",
-                        "src": "4789:482:1"
+                        "src": "4789:482:7"
                       }
                     ]
                   }
                 },
                 {
                   "assignments": [
-                    2592
+                    3061
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2592,
+                      "id": 3061,
                       "mutability": "mutable",
                       "name": "tt",
-                      "nameLocation": "5310:2:1",
+                      "nameLocation": "5310:2:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2619,
-                      "src": "5290:22:1",
+                      "scope": 3088,
+                      "src": "5290:22:7",
                       "stateVariable": false,
                       "storageLocation": "memory",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                        "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                         "typeString": "struct TokenTracker.TrackedToken"
                       },
                       "typeName": {
-                        "id": 2591,
+                        "id": 3060,
                         "nodeType": "UserDefinedTypeName",
                         "pathNode": {
-                          "id": 2590,
+                          "id": 3059,
                           "name": "TrackedToken",
                           "nodeType": "IdentifierPath",
-                          "referencedDeclaration": 2231,
-                          "src": "5290:12:1"
+                          "referencedDeclaration": 2700,
+                          "src": "5290:12:7"
                         },
-                        "referencedDeclaration": 2231,
-                        "src": "5290:12:1",
+                        "referencedDeclaration": 2700,
+                        "src": "5290:12:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_TrackedToken_$2231_storage_ptr",
+                          "typeIdentifier": "t_struct$_TrackedToken_$2700_storage_ptr",
                           "typeString": "struct TokenTracker.TrackedToken"
                         }
                       },
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2598,
+                  "id": 3067,
                   "initialValue": {
                     "arguments": [
                       {
-                        "id": 2594,
+                        "id": 3063,
                         "name": "tokenType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2500,
-                        "src": "5328:9:1",
+                        "referencedDeclaration": 2969,
+                        "src": "5328:9:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
-                        "id": 2595,
+                        "id": 3064,
                         "name": "contractAddress",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2502,
-                        "src": "5339:15:1",
+                        "referencedDeclaration": 2971,
+                        "src": "5339:15:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2596,
+                        "id": 3065,
                         "name": "tokenId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2504,
-                        "src": "5356:7:1",
+                        "referencedDeclaration": 2973,
+                        "src": "5356:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -30052,7 +30052,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -30064,18 +30064,18 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2593,
+                      "id": 3062,
                       "name": "TrackedToken",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2231,
-                      "src": "5315:12:1",
+                      "referencedDeclaration": 2700,
+                      "src": "5315:12:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_type$_t_struct$_TrackedToken_$2231_storage_ptr_$",
+                        "typeIdentifier": "t_type$_t_struct$_TrackedToken_$2700_storage_ptr_$",
                         "typeString": "type(struct TokenTracker.TrackedToken storage pointer)"
                       }
                     },
-                    "id": 2597,
+                    "id": 3066,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -30083,40 +30083,40 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5315:49:1",
+                    "src": "5315:49:7",
                     "tryCall": false,
                     "typeDescriptions": {
-                      "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                      "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                       "typeString": "struct TokenTracker.TrackedToken memory"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "5290:74:1"
+                  "src": "5290:74:7"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
                         "expression": {
-                          "id": 2603,
+                          "id": 3072,
                           "name": "trackedTokens",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2240,
-                          "src": "5406:13:1",
+                          "referencedDeclaration": 2709,
+                          "src": "5406:13:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                             "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                           }
                         },
-                        "id": 2604,
+                        "id": 3073,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "length",
                         "nodeType": "MemberAccess",
-                        "src": "5406:20:1",
+                        "src": "5406:20:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -30132,25 +30132,25 @@
                       ],
                       "expression": {
                         "baseExpression": {
-                          "id": 2599,
+                          "id": 3068,
                           "name": "trackedTokenPositions",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2236,
-                          "src": "5374:21:1",
+                          "referencedDeclaration": 2705,
+                          "src": "5374:21:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                             "typeString": "mapping(bytes32 => uint256[] storage ref)"
                           }
                         },
-                        "id": 2601,
+                        "id": 3070,
                         "indexExpression": {
-                          "id": 2600,
+                          "id": 3069,
                           "name": "key",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2508,
-                          "src": "5396:3:1",
+                          "referencedDeclaration": 2977,
+                          "src": "5396:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
@@ -30161,26 +30161,26 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "5374:26:1",
+                        "src": "5374:26:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                           "typeString": "uint256[] storage ref"
                         }
                       },
-                      "id": 2602,
+                      "id": 3071,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "push",
                       "nodeType": "MemberAccess",
-                      "src": "5374:31:1",
+                      "src": "5374:31:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_uint256_$dyn_storage_ptr_$_t_uint256_$returns$__$bound_to$_t_array$_t_uint256_$dyn_storage_ptr_$",
                         "typeString": "function (uint256[] storage pointer,uint256)"
                       }
                     },
-                    "id": 2605,
+                    "id": 3074,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -30188,29 +30188,29 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5374:53:1",
+                    "src": "5374:53:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2606,
+                  "id": 3075,
                   "nodeType": "ExpressionStatement",
-                  "src": "5374:53:1"
+                  "src": "5374:53:7"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
-                        "id": 2610,
+                        "id": 3079,
                         "name": "tt",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2592,
-                        "src": "5456:2:1",
+                        "referencedDeclaration": 3061,
+                        "src": "5456:2:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                          "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                           "typeString": "struct TokenTracker.TrackedToken memory"
                         }
                       }
@@ -30218,36 +30218,36 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                          "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                           "typeString": "struct TokenTracker.TrackedToken memory"
                         }
                       ],
                       "expression": {
-                        "id": 2607,
+                        "id": 3076,
                         "name": "trackedTokens",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2240,
-                        "src": "5437:13:1",
+                        "referencedDeclaration": 2709,
+                        "src": "5437:13:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                           "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                         }
                       },
-                      "id": 2609,
+                      "id": 3078,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "push",
                       "nodeType": "MemberAccess",
-                      "src": "5437:18:1",
+                      "src": "5437:18:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr_$_t_struct$_TrackedToken_$2231_storage_$returns$__$bound_to$_t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr_$",
+                        "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr_$_t_struct$_TrackedToken_$2700_storage_$returns$__$bound_to$_t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr_$",
                         "typeString": "function (struct TokenTracker.TrackedToken storage ref[] storage pointer,struct TokenTracker.TrackedToken storage ref)"
                       }
                     },
-                    "id": 2611,
+                    "id": 3080,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -30255,51 +30255,51 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5437:22:1",
+                    "src": "5437:22:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2612,
+                  "id": 3081,
                   "nodeType": "ExpressionStatement",
-                  "src": "5437:22:1"
+                  "src": "5437:22:7"
                 },
                 {
                   "eventCall": {
                     "arguments": [
                       {
-                        "id": 2614,
+                        "id": 3083,
                         "name": "tokenType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2500,
-                        "src": "5487:9:1",
+                        "referencedDeclaration": 2969,
+                        "src": "5487:9:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
-                        "id": 2615,
+                        "id": 3084,
                         "name": "contractAddress",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2502,
-                        "src": "5498:15:1",
+                        "referencedDeclaration": 2971,
+                        "src": "5498:15:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2616,
+                        "id": 3085,
                         "name": "tokenId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2504,
-                        "src": "5515:7:1",
+                        "referencedDeclaration": 2973,
+                        "src": "5515:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -30309,7 +30309,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -30321,18 +30321,18 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2613,
+                      "id": 3082,
                       "name": "TokenTracked",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2164,
-                      "src": "5474:12:1",
+                      "referencedDeclaration": 2633,
+                      "src": "5474:12:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2138_$_t_address_$_t_uint256_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                         "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                       }
                     },
-                    "id": 2617,
+                    "id": 3086,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -30340,59 +30340,59 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5474:49:1",
+                    "src": "5474:49:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2618,
+                  "id": 3087,
                   "nodeType": "EmitStatement",
-                  "src": "5469:54:1"
+                  "src": "5469:54:7"
                 }
               ]
             },
-            "id": 2620,
+            "id": 3089,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_trackToken",
-            "nameLocation": "4509:11:1",
+            "nameLocation": "4509:11:7",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2505,
+              "id": 2974,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2500,
+                  "id": 2969,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "4531:9:1",
+                  "nameLocation": "4531:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2620,
-                  "src": "4521:19:1",
+                  "scope": 3089,
+                  "src": "4521:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2499,
+                    "id": 2968,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
-                      "id": 2498,
+                      "id": 2967,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2138,
-                      "src": "4521:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "4521:9:7"
                     },
-                    "referencedDeclaration": 2138,
-                    "src": "4521:9:1",
+                    "referencedDeclaration": 2607,
+                    "src": "4521:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -30400,13 +30400,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2502,
+                  "id": 2971,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "4550:15:1",
+                  "nameLocation": "4550:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2620,
-                  "src": "4542:23:1",
+                  "scope": 3089,
+                  "src": "4542:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -30414,10 +30414,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2501,
+                    "id": 2970,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "4542:7:1",
+                    "src": "4542:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -30428,13 +30428,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2504,
+                  "id": 2973,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "4575:7:1",
+                  "nameLocation": "4575:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2620,
-                  "src": "4567:15:1",
+                  "scope": 3089,
+                  "src": "4567:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -30442,10 +30442,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2503,
+                    "id": 2972,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "4567:7:1",
+                    "src": "4567:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -30454,40 +30454,40 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "4520:63:1"
+              "src": "4520:63:7"
             },
             "returnParameters": {
-              "id": 2506,
+              "id": 2975,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "4593:0:1"
+              "src": "4593:0:7"
             },
-            "scope": 3391,
-            "src": "4500:1030:1",
+            "scope": 3860,
+            "src": "4500:1030:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 2837,
+              "id": 3306,
               "nodeType": "Block",
-              "src": "5631:1518:1",
+              "src": "5631:1518:7",
               "statements": [
                 {
                   "assignments": [
-                    2631
+                    3100
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2631,
+                      "id": 3100,
                       "mutability": "mutable",
                       "name": "key",
-                      "nameLocation": "5649:3:1",
+                      "nameLocation": "5649:3:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2837,
-                      "src": "5641:11:1",
+                      "scope": 3306,
+                      "src": "5641:11:7",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -30495,10 +30495,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 2630,
+                        "id": 3099,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "5641:7:1",
+                        "src": "5641:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -30507,7 +30507,7 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2656,
+                  "id": 3125,
                   "initialValue": {
                     "arguments": [
                       {
@@ -30517,14 +30517,14 @@
                               {
                                 "arguments": [
                                   {
-                                    "id": 2640,
+                                    "id": 3109,
                                     "name": "tokenType",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2623,
-                                    "src": "5694:9:1",
+                                    "referencedDeclaration": 3092,
+                                    "src": "5694:9:7",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                                      "typeIdentifier": "t_enum$_TokenType_$2607",
                                       "typeString": "enum TokenTracker.TokenType"
                                     }
                                   }
@@ -30532,30 +30532,30 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                                      "typeIdentifier": "t_enum$_TokenType_$2607",
                                       "typeString": "enum TokenTracker.TokenType"
                                     }
                                   ],
-                                  "id": 2639,
+                                  "id": 3108,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "5686:7:1",
+                                  "src": "5686:7:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_uint256_$",
                                     "typeString": "type(uint256)"
                                   },
                                   "typeName": {
-                                    "id": 2638,
+                                    "id": 3107,
                                     "name": "uint256",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "5686:7:1",
+                                    "src": "5686:7:7",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 2641,
+                                "id": 3110,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -30563,7 +30563,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "5686:18:1",
+                                "src": "5686:18:7",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
@@ -30578,26 +30578,26 @@
                                   "typeString": "uint256"
                                 }
                               ],
-                              "id": 2637,
+                              "id": 3106,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "5678:7:1",
+                              "src": "5678:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 2636,
+                                "id": 3105,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "5678:7:1",
+                                "src": "5678:7:7",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 2642,
+                            "id": 3111,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -30605,7 +30605,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "5678:27:1",
+                            "src": "5678:27:7",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -30617,12 +30617,12 @@
                               {
                                 "arguments": [
                                   {
-                                    "id": 2647,
+                                    "id": 3116,
                                     "name": "contractAddress",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2625,
-                                    "src": "5723:15:1",
+                                    "referencedDeclaration": 3094,
+                                    "src": "5723:15:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_address",
                                       "typeString": "address"
@@ -30636,26 +30636,26 @@
                                       "typeString": "address"
                                     }
                                   ],
-                                  "id": 2646,
+                                  "id": 3115,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "5715:7:1",
+                                  "src": "5715:7:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes20_$",
                                     "typeString": "type(bytes20)"
                                   },
                                   "typeName": {
-                                    "id": 2645,
+                                    "id": 3114,
                                     "name": "bytes20",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "5715:7:1",
+                                    "src": "5715:7:7",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 2648,
+                                "id": 3117,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -30663,7 +30663,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "5715:24:1",
+                                "src": "5715:24:7",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes20",
@@ -30678,26 +30678,26 @@
                                   "typeString": "bytes20"
                                 }
                               ],
-                              "id": 2644,
+                              "id": 3113,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "5707:7:1",
+                              "src": "5707:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 2643,
+                                "id": 3112,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "5707:7:1",
+                                "src": "5707:7:7",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 2649,
+                            "id": 3118,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -30705,7 +30705,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "5707:33:1",
+                            "src": "5707:33:7",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -30715,12 +30715,12 @@
                           {
                             "arguments": [
                               {
-                                "id": 2652,
+                                "id": 3121,
                                 "name": "tokenId",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2627,
-                                "src": "5750:7:1",
+                                "referencedDeclaration": 3096,
+                                "src": "5750:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -30734,26 +30734,26 @@
                                   "typeString": "uint256"
                                 }
                               ],
-                              "id": 2651,
+                              "id": 3120,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "lValueRequested": false,
                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "5742:7:1",
+                              "src": "5742:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_bytes32_$",
                                 "typeString": "type(bytes32)"
                               },
                               "typeName": {
-                                "id": 2650,
+                                "id": 3119,
                                 "name": "bytes32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "5742:7:1",
+                                "src": "5742:7:7",
                                 "typeDescriptions": {}
                               }
                             },
-                            "id": 2653,
+                            "id": 3122,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -30761,7 +30761,7 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "5742:16:1",
+                            "src": "5742:16:7",
                             "tryCall": false,
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
@@ -30785,39 +30785,39 @@
                             }
                           ],
                           "expression": {
-                            "id": 2634,
+                            "id": 3103,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "5665:5:1",
+                            "src": "5665:5:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                               "typeString": "type(bytes storage pointer)"
                             },
                             "typeName": {
-                              "id": 2633,
+                              "id": 3102,
                               "name": "bytes",
                               "nodeType": "ElementaryTypeName",
-                              "src": "5665:5:1",
+                              "src": "5665:5:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 2635,
+                          "id": 3104,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "concat",
                           "nodeType": "MemberAccess",
-                          "src": "5665:12:1",
+                          "src": "5665:12:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                             "typeString": "function () pure returns (bytes memory)"
                           }
                         },
-                        "id": 2654,
+                        "id": 3123,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -30825,7 +30825,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "5665:94:1",
+                        "src": "5665:94:7",
                         "tryCall": false,
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_memory_ptr",
@@ -30840,18 +30840,18 @@
                           "typeString": "bytes memory"
                         }
                       ],
-                      "id": 2632,
+                      "id": 3101,
                       "name": "keccak256",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 4294967288,
-                      "src": "5655:9:1",
+                      "src": "5655:9:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                         "typeString": "function (bytes memory) pure returns (bytes32)"
                       }
                     },
-                    "id": 2655,
+                    "id": 3124,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -30859,7 +30859,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5655:105:1",
+                    "src": "5655:105:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
@@ -30867,7 +30867,7 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "5641:119:1"
+                  "src": "5641:119:7"
                 },
                 {
                   "condition": {
@@ -30875,7 +30875,7 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2662,
+                    "id": 3131,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -30883,25 +30883,25 @@
                     "leftExpression": {
                       "expression": {
                         "baseExpression": {
-                          "id": 2657,
+                          "id": 3126,
                           "name": "trackedTokenPositions",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2236,
-                          "src": "5774:21:1",
+                          "referencedDeclaration": 2705,
+                          "src": "5774:21:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                             "typeString": "mapping(bytes32 => uint256[] storage ref)"
                           }
                         },
-                        "id": 2659,
+                        "id": 3128,
                         "indexExpression": {
-                          "id": 2658,
+                          "id": 3127,
                           "name": "key",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2631,
-                          "src": "5796:3:1",
+                          "referencedDeclaration": 3100,
+                          "src": "5796:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
@@ -30912,20 +30912,20 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "5774:26:1",
+                        "src": "5774:26:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                           "typeString": "uint256[] storage ref"
                         }
                       },
-                      "id": 2660,
+                      "id": 3129,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "5774:33:1",
+                      "src": "5774:33:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
@@ -30935,63 +30935,63 @@
                     "operator": "==",
                     "rightExpression": {
                       "hexValue": "30",
-                      "id": 2661,
+                      "id": 3130,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "5811:1:1",
+                      "src": "5811:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
                       },
                       "value": "0"
                     },
-                    "src": "5774:38:1",
+                    "src": "5774:38:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2665,
+                  "id": 3134,
                   "nodeType": "IfStatement",
-                  "src": "5770:75:1",
+                  "src": "5770:75:7",
                   "trueBody": {
-                    "id": 2664,
+                    "id": 3133,
                     "nodeType": "Block",
-                    "src": "5814:31:1",
+                    "src": "5814:31:7",
                     "statements": [
                       {
-                        "functionReturnParameters": 2629,
-                        "id": 2663,
+                        "functionReturnParameters": 3098,
+                        "id": 3132,
                         "nodeType": "Return",
-                        "src": "5828:7:1"
+                        "src": "5828:7:7"
                       }
                     ]
                   }
                 },
                 {
                   "body": {
-                    "id": 2829,
+                    "id": 3298,
                     "nodeType": "Block",
-                    "src": "5917:1161:1",
+                    "src": "5917:1161:7",
                     "statements": [
                       {
                         "assignments": [
-                          2680
+                          3149
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2680,
+                            "id": 3149,
                             "mutability": "mutable",
                             "name": "j",
-                            "nameLocation": "5939:1:1",
+                            "nameLocation": "5939:1:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2829,
-                            "src": "5931:9:1",
+                            "scope": 3298,
+                            "src": "5931:9:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -30999,10 +30999,10 @@
                               "typeString": "uint256"
                             },
                             "typeName": {
-                              "id": 2679,
+                              "id": 3148,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "5931:7:1",
+                              "src": "5931:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -31011,29 +31011,29 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2686,
+                        "id": 3155,
                         "initialValue": {
                           "baseExpression": {
                             "baseExpression": {
-                              "id": 2681,
+                              "id": 3150,
                               "name": "trackedTokenPositions",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2236,
-                              "src": "5943:21:1",
+                              "referencedDeclaration": 2705,
+                              "src": "5943:21:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                 "typeString": "mapping(bytes32 => uint256[] storage ref)"
                               }
                             },
-                            "id": 2683,
+                            "id": 3152,
                             "indexExpression": {
-                              "id": 2682,
+                              "id": 3151,
                               "name": "key",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2631,
-                              "src": "5965:3:1",
+                              "referencedDeclaration": 3100,
+                              "src": "5965:3:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -31044,20 +31044,20 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "5943:26:1",
+                            "src": "5943:26:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                               "typeString": "uint256[] storage ref"
                             }
                           },
-                          "id": 2685,
+                          "id": 3154,
                           "indexExpression": {
-                            "id": 2684,
+                            "id": 3153,
                             "name": "i",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2667,
-                            "src": "5970:1:1",
+                            "referencedDeclaration": 3136,
+                            "src": "5970:1:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -31068,22 +31068,22 @@
                           "isPure": false,
                           "lValueRequested": false,
                           "nodeType": "IndexAccess",
-                          "src": "5943:29:1",
+                          "src": "5943:29:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "5931:41:1"
+                        "src": "5931:41:7"
                       },
                       {
                         "condition": {
                           "commonType": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           },
-                          "id": 2692,
+                          "id": 3161,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -31091,25 +31091,25 @@
                           "leftExpression": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2687,
+                                "id": 3156,
                                 "name": "trackedTokens",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2240,
-                                "src": "5990:13:1",
+                                "referencedDeclaration": 2709,
+                                "src": "5990:13:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                   "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                 }
                               },
-                              "id": 2689,
+                              "id": 3158,
                               "indexExpression": {
-                                "id": 2688,
+                                "id": 3157,
                                 "name": "j",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2680,
-                                "src": "6004:1:1",
+                                "referencedDeclaration": 3149,
+                                "src": "6004:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -31120,53 +31120,53 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "5990:16:1",
+                              "src": "5990:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref"
                               }
                             },
-                            "id": 2690,
+                            "id": 3159,
                             "isConstant": false,
                             "isLValue": true,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "tokenType",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2226,
-                            "src": "5990:26:1",
+                            "referencedDeclaration": 2695,
+                            "src": "5990:26:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             }
                           },
                           "nodeType": "BinaryOperation",
                           "operator": "!=",
                           "rightExpression": {
-                            "id": 2691,
+                            "id": 3160,
                             "name": "tokenType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2623,
-                            "src": "6020:9:1",
+                            "referencedDeclaration": 3092,
+                            "src": "6020:9:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             }
                           },
-                          "src": "5990:39:1",
+                          "src": "5990:39:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "id": 2694,
+                        "id": 3163,
                         "nodeType": "IfStatement",
-                        "src": "5986:53:1",
+                        "src": "5986:53:7",
                         "trueBody": {
-                          "id": 2693,
+                          "id": 3162,
                           "nodeType": "Continue",
-                          "src": "6031:8:1"
+                          "src": "6031:8:7"
                         }
                       },
                       {
@@ -31175,7 +31175,7 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
-                          "id": 2700,
+                          "id": 3169,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -31183,25 +31183,25 @@
                           "leftExpression": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2695,
+                                "id": 3164,
                                 "name": "trackedTokens",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2240,
-                                "src": "6057:13:1",
+                                "referencedDeclaration": 2709,
+                                "src": "6057:13:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                   "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                 }
                               },
-                              "id": 2697,
+                              "id": 3166,
                               "indexExpression": {
-                                "id": 2696,
+                                "id": 3165,
                                 "name": "j",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2680,
-                                "src": "6071:1:1",
+                                "referencedDeclaration": 3149,
+                                "src": "6071:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -31212,21 +31212,21 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "6057:16:1",
+                              "src": "6057:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref"
                               }
                             },
-                            "id": 2698,
+                            "id": 3167,
                             "isConstant": false,
                             "isLValue": true,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "tokenId",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2230,
-                            "src": "6057:24:1",
+                            "referencedDeclaration": 2699,
+                            "src": "6057:24:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -31235,30 +31235,30 @@
                           "nodeType": "BinaryOperation",
                           "operator": "!=",
                           "rightExpression": {
-                            "id": 2699,
+                            "id": 3168,
                             "name": "tokenId",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2627,
-                            "src": "6085:7:1",
+                            "referencedDeclaration": 3096,
+                            "src": "6085:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "6057:35:1",
+                          "src": "6057:35:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "id": 2702,
+                        "id": 3171,
                         "nodeType": "IfStatement",
-                        "src": "6053:49:1",
+                        "src": "6053:49:7",
                         "trueBody": {
-                          "id": 2701,
+                          "id": 3170,
                           "nodeType": "Continue",
-                          "src": "6094:8:1"
+                          "src": "6094:8:7"
                         }
                       },
                       {
@@ -31267,7 +31267,7 @@
                             "typeIdentifier": "t_address",
                             "typeString": "address"
                           },
-                          "id": 2708,
+                          "id": 3177,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -31275,25 +31275,25 @@
                           "leftExpression": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2703,
+                                "id": 3172,
                                 "name": "trackedTokens",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2240,
-                                "src": "6120:13:1",
+                                "referencedDeclaration": 2709,
+                                "src": "6120:13:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                  "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                   "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                 }
                               },
-                              "id": 2705,
+                              "id": 3174,
                               "indexExpression": {
-                                "id": 2704,
+                                "id": 3173,
                                 "name": "j",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2680,
-                                "src": "6134:1:1",
+                                "referencedDeclaration": 3149,
+                                "src": "6134:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -31304,21 +31304,21 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "6120:16:1",
+                              "src": "6120:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref"
                               }
                             },
-                            "id": 2706,
+                            "id": 3175,
                             "isConstant": false,
                             "isLValue": true,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "contractAddress",
                             "nodeType": "MemberAccess",
-                            "referencedDeclaration": 2228,
-                            "src": "6120:32:1",
+                            "referencedDeclaration": 2697,
+                            "src": "6120:32:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_address",
                               "typeString": "address"
@@ -31327,46 +31327,46 @@
                           "nodeType": "BinaryOperation",
                           "operator": "!=",
                           "rightExpression": {
-                            "id": 2707,
+                            "id": 3176,
                             "name": "contractAddress",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2625,
-                            "src": "6156:15:1",
+                            "referencedDeclaration": 3094,
+                            "src": "6156:15:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_address",
                               "typeString": "address"
                             }
                           },
-                          "src": "6120:51:1",
+                          "src": "6120:51:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "id": 2710,
+                        "id": 3179,
                         "nodeType": "IfStatement",
-                        "src": "6116:65:1",
+                        "src": "6116:65:7",
                         "trueBody": {
-                          "id": 2709,
+                          "id": 3178,
                           "nodeType": "Continue",
-                          "src": "6173:8:1"
+                          "src": "6173:8:7"
                         }
                       },
                       {
                         "assignments": [
-                          2712
+                          3181
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2712,
+                            "id": 3181,
                             "mutability": "mutable",
                             "name": "swappedPosition",
-                            "nameLocation": "6234:15:1",
+                            "nameLocation": "6234:15:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2829,
-                            "src": "6226:23:1",
+                            "scope": 3298,
+                            "src": "6226:23:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -31374,10 +31374,10 @@
                               "typeString": "uint256"
                             },
                             "typeName": {
-                              "id": 2711,
+                              "id": 3180,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "6226:7:1",
+                              "src": "6226:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -31386,38 +31386,38 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2717,
+                        "id": 3186,
                         "initialValue": {
                           "commonType": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
-                          "id": 2716,
+                          "id": 3185,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
                             "expression": {
-                              "id": 2713,
+                              "id": 3182,
                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "6252:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "6252:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
-                            "id": 2714,
+                            "id": 3183,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "6252:20:1",
+                            "src": "6252:20:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -31427,57 +31427,57 @@
                           "operator": "-",
                           "rightExpression": {
                             "hexValue": "31",
-                            "id": 2715,
+                            "id": 3184,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "6275:1:1",
+                            "src": "6275:1:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_1_by_1",
                               "typeString": "int_const 1"
                             },
                             "value": "1"
                           },
-                          "src": "6252:24:1",
+                          "src": "6252:24:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "6226:50:1"
+                        "src": "6226:50:7"
                       },
                       {
                         "expression": {
-                          "id": 2724,
+                          "id": 3193,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
                             "baseExpression": {
-                              "id": 2718,
+                              "id": 3187,
                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "6290:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "6290:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
-                            "id": 2720,
+                            "id": 3189,
                             "indexExpression": {
-                              "id": 2719,
+                              "id": 3188,
                               "name": "j",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2680,
-                              "src": "6304:1:1",
+                              "referencedDeclaration": 3149,
+                              "src": "6304:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -31488,9 +31488,9 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "6290:16:1",
+                            "src": "6290:16:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                             }
                           },
@@ -31498,25 +31498,25 @@
                           "operator": "=",
                           "rightHandSide": {
                             "baseExpression": {
-                              "id": 2721,
+                              "id": 3190,
                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "6309:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "6309:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
-                            "id": 2723,
+                            "id": 3192,
                             "indexExpression": {
-                              "id": 2722,
+                              "id": 3191,
                               "name": "swappedPosition",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2712,
-                              "src": "6323:15:1",
+                              "referencedDeclaration": 3181,
+                              "src": "6323:15:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -31527,36 +31527,36 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "6309:30:1",
+                            "src": "6309:30:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                             }
                           },
-                          "src": "6290:49:1",
+                          "src": "6290:49:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                            "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                             "typeString": "struct TokenTracker.TrackedToken storage ref"
                           }
                         },
-                        "id": 2725,
+                        "id": 3194,
                         "nodeType": "ExpressionStatement",
-                        "src": "6290:49:1"
+                        "src": "6290:49:7"
                       },
                       {
                         "assignments": [
-                          2727
+                          3196
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2727,
+                            "id": 3196,
                             "mutability": "mutable",
                             "name": "swappedKey",
-                            "nameLocation": "6361:10:1",
+                            "nameLocation": "6361:10:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2829,
-                            "src": "6353:18:1",
+                            "scope": 3298,
+                            "src": "6353:18:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -31564,10 +31564,10 @@
                               "typeString": "bytes32"
                             },
                             "typeName": {
-                              "id": 2726,
+                              "id": 3195,
                               "name": "bytes32",
                               "nodeType": "ElementaryTypeName",
-                              "src": "6353:7:1",
+                              "src": "6353:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -31576,7 +31576,7 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2761,
+                        "id": 3230,
                         "initialValue": {
                           "arguments": [
                             {
@@ -31588,25 +31588,25 @@
                                         {
                                           "expression": {
                                             "baseExpression": {
-                                              "id": 2736,
+                                              "id": 3205,
                                               "name": "trackedTokens",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 2240,
-                                              "src": "6413:13:1",
+                                              "referencedDeclaration": 2709,
+                                              "src": "6413:13:7",
                                               "typeDescriptions": {
-                                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                               }
                                             },
-                                            "id": 2738,
+                                            "id": 3207,
                                             "indexExpression": {
-                                              "id": 2737,
+                                              "id": 3206,
                                               "name": "j",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 2680,
-                                              "src": "6427:1:1",
+                                              "referencedDeclaration": 3149,
+                                              "src": "6427:1:7",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_uint256",
                                                 "typeString": "uint256"
@@ -31617,23 +31617,23 @@
                                             "isPure": false,
                                             "lValueRequested": false,
                                             "nodeType": "IndexAccess",
-                                            "src": "6413:16:1",
+                                            "src": "6413:16:7",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                                             }
                                           },
-                                          "id": 2739,
+                                          "id": 3208,
                                           "isConstant": false,
                                           "isLValue": true,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "memberName": "tokenType",
                                           "nodeType": "MemberAccess",
-                                          "referencedDeclaration": 2226,
-                                          "src": "6413:26:1",
+                                          "referencedDeclaration": 2695,
+                                          "src": "6413:26:7",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         }
@@ -31641,30 +31641,30 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         ],
-                                        "id": 2735,
+                                        "id": 3204,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "6405:7:1",
+                                        "src": "6405:7:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_uint256_$",
                                           "typeString": "type(uint256)"
                                         },
                                         "typeName": {
-                                          "id": 2734,
+                                          "id": 3203,
                                           "name": "uint256",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "6405:7:1",
+                                          "src": "6405:7:7",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 2740,
+                                      "id": 3209,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -31672,7 +31672,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "6405:35:1",
+                                      "src": "6405:35:7",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
@@ -31687,26 +31687,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 2733,
+                                    "id": 3202,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "6397:7:1",
+                                    "src": "6397:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2732,
+                                      "id": 3201,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "6397:7:1",
+                                      "src": "6397:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2741,
+                                  "id": 3210,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -31714,7 +31714,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "6397:44:1",
+                                  "src": "6397:44:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -31728,25 +31728,25 @@
                                         {
                                           "expression": {
                                             "baseExpression": {
-                                              "id": 2746,
+                                              "id": 3215,
                                               "name": "trackedTokens",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 2240,
-                                              "src": "6459:13:1",
+                                              "referencedDeclaration": 2709,
+                                              "src": "6459:13:7",
                                               "typeDescriptions": {
-                                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                               }
                                             },
-                                            "id": 2748,
+                                            "id": 3217,
                                             "indexExpression": {
-                                              "id": 2747,
+                                              "id": 3216,
                                               "name": "j",
                                               "nodeType": "Identifier",
                                               "overloadedDeclarations": [],
-                                              "referencedDeclaration": 2680,
-                                              "src": "6473:1:1",
+                                              "referencedDeclaration": 3149,
+                                              "src": "6473:1:7",
                                               "typeDescriptions": {
                                                 "typeIdentifier": "t_uint256",
                                                 "typeString": "uint256"
@@ -31757,21 +31757,21 @@
                                             "isPure": false,
                                             "lValueRequested": false,
                                             "nodeType": "IndexAccess",
-                                            "src": "6459:16:1",
+                                            "src": "6459:16:7",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                                             }
                                           },
-                                          "id": 2749,
+                                          "id": 3218,
                                           "isConstant": false,
                                           "isLValue": true,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "memberName": "contractAddress",
                                           "nodeType": "MemberAccess",
-                                          "referencedDeclaration": 2228,
-                                          "src": "6459:32:1",
+                                          "referencedDeclaration": 2697,
+                                          "src": "6459:32:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
@@ -31785,26 +31785,26 @@
                                             "typeString": "address"
                                           }
                                         ],
-                                        "id": 2745,
+                                        "id": 3214,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "6451:7:1",
+                                        "src": "6451:7:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes20_$",
                                           "typeString": "type(bytes20)"
                                         },
                                         "typeName": {
-                                          "id": 2744,
+                                          "id": 3213,
                                           "name": "bytes20",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "6451:7:1",
+                                          "src": "6451:7:7",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 2750,
+                                      "id": 3219,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -31812,7 +31812,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "6451:41:1",
+                                      "src": "6451:41:7",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes20",
@@ -31827,26 +31827,26 @@
                                         "typeString": "bytes20"
                                       }
                                     ],
-                                    "id": 2743,
+                                    "id": 3212,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "6443:7:1",
+                                    "src": "6443:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2742,
+                                      "id": 3211,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "6443:7:1",
+                                      "src": "6443:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2751,
+                                  "id": 3220,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -31854,7 +31854,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "6443:50:1",
+                                  "src": "6443:50:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -31866,25 +31866,25 @@
                                     {
                                       "expression": {
                                         "baseExpression": {
-                                          "id": 2754,
+                                          "id": 3223,
                                           "name": "trackedTokens",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2240,
-                                          "src": "6503:13:1",
+                                          "referencedDeclaration": 2709,
+                                          "src": "6503:13:7",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                            "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                             "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                                           }
                                         },
-                                        "id": 2756,
+                                        "id": 3225,
                                         "indexExpression": {
-                                          "id": 2755,
+                                          "id": 3224,
                                           "name": "j",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2680,
-                                          "src": "6517:1:1",
+                                          "referencedDeclaration": 3149,
+                                          "src": "6517:1:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint256",
                                             "typeString": "uint256"
@@ -31895,21 +31895,21 @@
                                         "isPure": false,
                                         "lValueRequested": false,
                                         "nodeType": "IndexAccess",
-                                        "src": "6503:16:1",
+                                        "src": "6503:16:7",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                                          "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                                           "typeString": "struct TokenTracker.TrackedToken storage ref"
                                         }
                                       },
-                                      "id": 2757,
+                                      "id": 3226,
                                       "isConstant": false,
                                       "isLValue": true,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "memberName": "tokenId",
                                       "nodeType": "MemberAccess",
-                                      "referencedDeclaration": 2230,
-                                      "src": "6503:24:1",
+                                      "referencedDeclaration": 2699,
+                                      "src": "6503:24:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -31923,26 +31923,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 2753,
+                                    "id": 3222,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "6495:7:1",
+                                    "src": "6495:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2752,
+                                      "id": 3221,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "6495:7:1",
+                                      "src": "6495:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2758,
+                                  "id": 3227,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -31950,7 +31950,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "6495:33:1",
+                                  "src": "6495:33:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -31974,39 +31974,39 @@
                                   }
                                 ],
                                 "expression": {
-                                  "id": 2730,
+                                  "id": 3199,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "6384:5:1",
+                                  "src": "6384:5:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                     "typeString": "type(bytes storage pointer)"
                                   },
                                   "typeName": {
-                                    "id": 2729,
+                                    "id": 3198,
                                     "name": "bytes",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "6384:5:1",
+                                    "src": "6384:5:7",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 2731,
+                                "id": 3200,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "memberName": "concat",
                                 "nodeType": "MemberAccess",
-                                "src": "6384:12:1",
+                                "src": "6384:12:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                   "typeString": "function () pure returns (bytes memory)"
                                 }
                               },
-                              "id": 2759,
+                              "id": 3228,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -32014,7 +32014,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "6384:145:1",
+                              "src": "6384:145:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_memory_ptr",
@@ -32029,18 +32029,18 @@
                                 "typeString": "bytes memory"
                               }
                             ],
-                            "id": 2728,
+                            "id": 3197,
                             "name": "keccak256",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 4294967288,
-                            "src": "6374:9:1",
+                            "src": "6374:9:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                               "typeString": "function (bytes memory) pure returns (bytes32)"
                             }
                           },
-                          "id": 2760,
+                          "id": 3229,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -32048,7 +32048,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "6374:156:1",
+                          "src": "6374:156:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
@@ -32056,7 +32056,7 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "6353:177:1"
+                        "src": "6353:177:7"
                       },
                       {
                         "expression": {
@@ -32064,31 +32064,31 @@
                           "expression": {
                             "argumentTypes": [],
                             "expression": {
-                              "id": 2762,
+                              "id": 3231,
                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "6544:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "6544:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
-                            "id": 2764,
+                            "id": 3233,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "pop",
                             "nodeType": "MemberAccess",
-                            "src": "6544:17:1",
+                            "src": "6544:17:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_function_arraypop_nonpayable$_t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr_$returns$__$bound_to$_t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr_$",
+                              "typeIdentifier": "t_function_arraypop_nonpayable$_t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr_$returns$__$bound_to$_t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr_$",
                               "typeString": "function (struct TokenTracker.TrackedToken storage ref[] storage pointer)"
                             }
                           },
-                          "id": 2765,
+                          "id": 3234,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -32096,22 +32096,22 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "6544:19:1",
+                          "src": "6544:19:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 2766,
+                        "id": 3235,
                         "nodeType": "ExpressionStatement",
-                        "src": "6544:19:1"
+                        "src": "6544:19:7"
                       },
                       {
                         "body": {
-                          "id": 2797,
+                          "id": 3266,
                           "nodeType": "Block",
-                          "src": "6647:174:1",
+                          "src": "6647:174:7",
                           "statements": [
                             {
                               "condition": {
@@ -32119,7 +32119,7 @@
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
                                 },
-                                "id": 2786,
+                                "id": 3255,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -32127,25 +32127,25 @@
                                 "leftExpression": {
                                   "baseExpression": {
                                     "baseExpression": {
-                                      "id": 2780,
+                                      "id": 3249,
                                       "name": "trackedTokenPositions",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2236,
-                                      "src": "6669:21:1",
+                                      "referencedDeclaration": 2705,
+                                      "src": "6669:21:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                         "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                       }
                                     },
-                                    "id": 2782,
+                                    "id": 3251,
                                     "indexExpression": {
-                                      "id": 2781,
+                                      "id": 3250,
                                       "name": "swappedKey",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2727,
-                                      "src": "6691:10:1",
+                                      "referencedDeclaration": 3196,
+                                      "src": "6691:10:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes32",
                                         "typeString": "bytes32"
@@ -32156,20 +32156,20 @@
                                     "isPure": false,
                                     "lValueRequested": false,
                                     "nodeType": "IndexAccess",
-                                    "src": "6669:33:1",
+                                    "src": "6669:33:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                       "typeString": "uint256[] storage ref"
                                     }
                                   },
-                                  "id": 2784,
+                                  "id": 3253,
                                   "indexExpression": {
-                                    "id": 2783,
+                                    "id": 3252,
                                     "name": "k",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2768,
-                                    "src": "6703:1:1",
+                                    "referencedDeclaration": 3237,
+                                    "src": "6703:1:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
@@ -32180,7 +32180,7 @@
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "nodeType": "IndexAccess",
-                                  "src": "6669:36:1",
+                                  "src": "6669:36:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
@@ -32189,34 +32189,34 @@
                                 "nodeType": "BinaryOperation",
                                 "operator": "==",
                                 "rightExpression": {
-                                  "id": 2785,
+                                  "id": 3254,
                                   "name": "swappedPosition",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2712,
-                                  "src": "6709:15:1",
+                                  "referencedDeclaration": 3181,
+                                  "src": "6709:15:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
-                                "src": "6669:55:1",
+                                "src": "6669:55:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bool",
                                   "typeString": "bool"
                                 }
                               },
-                              "id": 2796,
+                              "id": 3265,
                               "nodeType": "IfStatement",
-                              "src": "6665:142:1",
+                              "src": "6665:142:7",
                               "trueBody": {
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+                                "id": 3264,
                                 "nodeType": "Block",
-                                "src": "6726:81:1",
+                                "src": "6726:81:7",
                                 "statements": [
                                   {
                                     "expression": {
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+                                      "id": 3262,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -32224,25 +32224,25 @@
                                       "leftHandSide": {
                                         "baseExpression": {
                                           "baseExpression": {
-                                            "id": 2787,
+                                            "id": 3256,
                                             "name": "trackedTokenPositions",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 2236,
-                                            "src": "6748:21:1",
+                                            "referencedDeclaration": 2705,
+                                            "src": "6748:21:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                               "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                             }
                                           },
-                                          "id": 2790,
+                                          "id": 3259,
                                           "indexExpression": {
-                                            "id": 2788,
+                                            "id": 3257,
                                             "name": "swappedKey",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 2727,
-                                            "src": "6770:10:1",
+                                            "referencedDeclaration": 3196,
+                                            "src": "6770:10:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_bytes32",
                                               "typeString": "bytes32"
@@ -32253,20 +32253,20 @@
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "nodeType": "IndexAccess",
-                                          "src": "6748:33:1",
+                                          "src": "6748:33:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                             "typeString": "uint256[] storage ref"
                                           }
                                         },
-                                        "id": 2791,
+                                        "id": 3260,
                                         "indexExpression": {
-                                          "id": 2789,
+                                          "id": 3258,
                                           "name": "k",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2768,
-                                          "src": "6782:1:1",
+                                          "referencedDeclaration": 3237,
+                                          "src": "6782:1:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -32277,7 +32277,7 @@
                                         "isPure": false,
                                         "lValueRequested": true,
                                         "nodeType": "IndexAccess",
-                                        "src": "6748:36:1",
+                                        "src": "6748:36:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
@@ -32286,26 +32286,26 @@
                                       "nodeType": "Assignment",
                                       "operator": "=",
                                       "rightHandSide": {
-                                        "id": 2792,
+                                        "id": 3261,
                                         "name": "j",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2680,
-                                        "src": "6787:1:1",
+                                        "referencedDeclaration": 3149,
+                                        "src": "6787:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
                                         }
                                       },
-                                      "src": "6748:40:1",
+                                      "src": "6748:40:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
                                       }
                                     },
-                                    "id": 2794,
+                                    "id": 3263,
                                     "nodeType": "ExpressionStatement",
-                                    "src": "6748:40:1"
+                                    "src": "6748:40:7"
                                   }
                                 ]
                               }
@@ -32317,18 +32317,18 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
-                          "id": 2776,
+                          "id": 3245,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 2771,
+                            "id": 3240,
                             "name": "k",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2768,
-                            "src": "6596:1:1",
+                            "referencedDeclaration": 3237,
+                            "src": "6596:1:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -32339,25 +32339,25 @@
                           "rightExpression": {
                             "expression": {
                               "baseExpression": {
-                                "id": 2772,
+                                "id": 3241,
                                 "name": "trackedTokenPositions",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2236,
-                                "src": "6600:21:1",
+                                "referencedDeclaration": 2705,
+                                "src": "6600:21:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                   "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                 }
                               },
-                              "id": 2774,
+                              "id": 3243,
                               "indexExpression": {
-                                "id": 2773,
+                                "id": 3242,
                                 "name": "swappedKey",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2727,
-                                "src": "6622:10:1",
+                                "referencedDeclaration": 3196,
+                                "src": "6622:10:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -32368,46 +32368,46 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "6600:33:1",
+                              "src": "6600:33:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                 "typeString": "uint256[] storage ref"
                               }
                             },
-                            "id": 2775,
+                            "id": 3244,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "6600:40:1",
+                            "src": "6600:40:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "6596:44:1",
+                          "src": "6596:44:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "id": 2798,
+                        "id": 3267,
                         "initializationExpression": {
                           "assignments": [
-                            2768
+                            3237
                           ],
                           "declarations": [
                             {
                               "constant": false,
-                              "id": 2768,
+                              "id": 3237,
                               "mutability": "mutable",
                               "name": "k",
-                              "nameLocation": "6589:1:1",
+                              "nameLocation": "6589:1:7",
                               "nodeType": "VariableDeclaration",
-                              "scope": 2798,
-                              "src": "6582:8:1",
+                              "scope": 3267,
+                              "src": "6582:8:7",
                               "stateVariable": false,
                               "storageLocation": "default",
                               "typeDescriptions": {
@@ -32415,10 +32415,10 @@
                                 "typeString": "uint32"
                               },
                               "typeName": {
-                                "id": 2767,
+                                "id": 3236,
                                 "name": "uint32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "6582:6:1",
+                                "src": "6582:6:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
@@ -32427,17 +32427,17 @@
                               "visibility": "internal"
                             }
                           ],
-                          "id": 2770,
+                          "id": 3239,
                           "initialValue": {
                             "hexValue": "30",
-                            "id": 2769,
+                            "id": 3238,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "6593:1:1",
+                            "src": "6593:1:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_0_by_1",
                               "typeString": "int_const 0"
@@ -32445,11 +32445,11 @@
                             "value": "0"
                           },
                           "nodeType": "VariableDeclarationStatement",
-                          "src": "6582:12:1"
+                          "src": "6582:12:7"
                         },
                         "loopExpression": {
                           "expression": {
-                            "id": 2778,
+                            "id": 3247,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -32457,14 +32457,14 @@
                             "nodeType": "UnaryOperation",
                             "operator": "++",
                             "prefix": false,
-                            "src": "6642:3:1",
+                            "src": "6642:3:7",
                             "subExpression": {
-                              "id": 2777,
+                              "id": 3246,
                               "name": "k",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2768,
-                              "src": "6642:1:1",
+                              "referencedDeclaration": 3237,
+                              "src": "6642:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -32475,16 +32475,16 @@
                               "typeString": "uint32"
                             }
                           },
-                          "id": 2779,
+                          "id": 3248,
                           "nodeType": "ExpressionStatement",
-                          "src": "6642:3:1"
+                          "src": "6642:3:7"
                         },
                         "nodeType": "ForStatement",
-                        "src": "6577:244:1"
+                        "src": "6577:244:7"
                       },
                       {
                         "expression": {
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+                          "id": 3283,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -32492,25 +32492,25 @@
                           "leftHandSide": {
                             "baseExpression": {
                               "baseExpression": {
-                                "id": 2799,
+                                "id": 3268,
                                 "name": "trackedTokenPositions",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2236,
-                                "src": "6834:21:1",
+                                "referencedDeclaration": 2705,
+                                "src": "6834:21:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                   "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                 }
                               },
-                              "id": 2802,
+                              "id": 3271,
                               "indexExpression": {
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+                                "id": 3269,
                                 "name": "key",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2631,
-                                "src": "6856:3:1",
+                                "referencedDeclaration": 3100,
+                                "src": "6856:3:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -32521,20 +32521,20 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "6834:26:1",
+                              "src": "6834:26:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                 "typeString": "uint256[] storage ref"
                               }
                             },
-                            "id": 2803,
+                            "id": 3272,
                             "indexExpression": {
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+                              "id": 3270,
                               "name": "j",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2680,
-                              "src": "6861:1:1",
+                              "referencedDeclaration": 3149,
+                              "src": "6861:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -32545,7 +32545,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "6834:29:1",
+                            "src": "6834:29:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -32556,25 +32556,25 @@
                           "rightHandSide": {
                             "baseExpression": {
                               "baseExpression": {
-                                "id": 2804,
+                                "id": 3273,
                                 "name": "trackedTokenPositions",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2236,
-                                "src": "6866:21:1",
+                                "referencedDeclaration": 2705,
+                                "src": "6866:21:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                   "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                 }
                               },
-                              "id": 2806,
+                              "id": 3275,
                               "indexExpression": {
-                                "id": 2805,
+                                "id": 3274,
                                 "name": "key",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2631,
-                                "src": "6888:3:1",
+                                "referencedDeclaration": 3100,
+                                "src": "6888:3:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -32585,19 +32585,19 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "6866:26:1",
+                              "src": "6866:26:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                 "typeString": "uint256[] storage ref"
                               }
                             },
-                            "id": 2813,
+                            "id": 3282,
                             "indexExpression": {
                               "commonType": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               },
-                              "id": 2812,
+                              "id": 3281,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -32605,25 +32605,25 @@
                               "leftExpression": {
                                 "expression": {
                                   "baseExpression": {
-                                    "id": 2807,
+                                    "id": 3276,
                                     "name": "trackedTokenPositions",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2236,
-                                    "src": "6893:21:1",
+                                    "referencedDeclaration": 2705,
+                                    "src": "6893:21:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                       "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                     }
                                   },
-                                  "id": 2809,
+                                  "id": 3278,
                                   "indexExpression": {
-                                    "id": 2808,
+                                    "id": 3277,
                                     "name": "key",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2631,
-                                    "src": "6915:3:1",
+                                    "referencedDeclaration": 3100,
+                                    "src": "6915:3:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes32",
                                       "typeString": "bytes32"
@@ -32634,20 +32634,20 @@
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "nodeType": "IndexAccess",
-                                  "src": "6893:26:1",
+                                  "src": "6893:26:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                     "typeString": "uint256[] storage ref"
                                   }
                                 },
-                                "id": 2810,
+                                "id": 3279,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "memberName": "length",
                                 "nodeType": "MemberAccess",
-                                "src": "6893:33:1",
+                                "src": "6893:33:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -32657,21 +32657,21 @@
                               "operator": "-",
                               "rightExpression": {
                                 "hexValue": "31",
-                                "id": 2811,
+                                "id": 3280,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
                                 "kind": "number",
                                 "lValueRequested": false,
                                 "nodeType": "Literal",
-                                "src": "6929:1:1",
+                                "src": "6929:1:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_rational_1_by_1",
                                   "typeString": "int_const 1"
                                 },
                                 "value": "1"
                               },
-                              "src": "6893:37:1",
+                              "src": "6893:37:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -32682,21 +32682,21 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "6866:65:1",
+                            "src": "6866:65:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "6834:97:1",
+                          "src": "6834:97:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
-                        "id": 2815,
+                        "id": 3284,
                         "nodeType": "ExpressionStatement",
-                        "src": "6834:97:1"
+                        "src": "6834:97:7"
                       },
                       {
                         "expression": {
@@ -32705,25 +32705,25 @@
                             "argumentTypes": [],
                             "expression": {
                               "baseExpression": {
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+                                "id": 3285,
                                 "name": "trackedTokenPositions",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2236,
-                                "src": "6945:21:1",
+                                "referencedDeclaration": 2705,
+                                "src": "6945:21:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                   "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                 }
                               },
-                              "id": 2818,
+                              "id": 3287,
                               "indexExpression": {
-                                "id": 2817,
+                                "id": 3286,
                                 "name": "key",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2631,
-                                "src": "6967:3:1",
+                                "referencedDeclaration": 3100,
+                                "src": "6967:3:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -32734,26 +32734,26 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "6945:26:1",
+                              "src": "6945:26:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                 "typeString": "uint256[] storage ref"
                               }
                             },
-                            "id": 2819,
+                            "id": 3288,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "pop",
                             "nodeType": "MemberAccess",
-                            "src": "6945:30:1",
+                            "src": "6945:30:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_arraypop_nonpayable$_t_array$_t_uint256_$dyn_storage_ptr_$returns$__$bound_to$_t_array$_t_uint256_$dyn_storage_ptr_$",
                               "typeString": "function (uint256[] storage pointer)"
                             }
                           },
-                          "id": 2820,
+                          "id": 3289,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -32761,51 +32761,51 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "6945:32:1",
+                          "src": "6945:32:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 2821,
+                        "id": 3290,
                         "nodeType": "ExpressionStatement",
-                        "src": "6945:32:1"
+                        "src": "6945:32:7"
                       },
                       {
                         "eventCall": {
                           "arguments": [
                             {
-                              "id": 2823,
+                              "id": 3292,
                               "name": "tokenType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2623,
-                              "src": "7011:9:1",
+                              "referencedDeclaration": 3092,
+                              "src": "7011:9:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             {
-                              "id": 2824,
+                              "id": 3293,
                               "name": "contractAddress",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2625,
-                              "src": "7022:15:1",
+                              "referencedDeclaration": 3094,
+                              "src": "7022:15:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
                                 "typeString": "address"
                               }
                             },
                             {
-                              "id": 2825,
+                              "id": 3294,
                               "name": "tokenId",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2627,
-                              "src": "7039:7:1",
+                              "referencedDeclaration": 3096,
+                              "src": "7039:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -32815,7 +32815,7 @@
                           "expression": {
                             "argumentTypes": [
                               {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               },
                               {
@@ -32827,18 +32827,18 @@
                                 "typeString": "uint256"
                               }
                             ],
-                            "id": 2822,
+                            "id": 3291,
                             "name": "TokenUntracked",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2173,
-                            "src": "6996:14:1",
+                            "referencedDeclaration": 2642,
+                            "src": "6996:14:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2138_$_t_address_$_t_uint256_$returns$__$",
+                              "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                               "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                             }
                           },
-                          "id": 2826,
+                          "id": 3295,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -32846,22 +32846,22 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "6996:51:1",
+                          "src": "6996:51:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 2827,
+                        "id": 3296,
                         "nodeType": "EmitStatement",
-                        "src": "6991:56:1"
+                        "src": "6991:56:7"
                       },
                       {
-                        "functionReturnParameters": 2629,
-                        "id": 2828,
+                        "functionReturnParameters": 3098,
+                        "id": 3297,
                         "nodeType": "Return",
-                        "src": "7061:7:1"
+                        "src": "7061:7:7"
                       }
                     ]
                   },
@@ -32870,18 +32870,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2675,
+                    "id": 3144,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
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+                      "id": 3139,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2667,
-                      "src": "5873:1:1",
+                      "referencedDeclaration": 3136,
+                      "src": "5873:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -32892,25 +32892,25 @@
                     "rightExpression": {
                       "expression": {
                         "baseExpression": {
-                          "id": 2671,
+                          "id": 3140,
                           "name": "trackedTokenPositions",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2236,
-                          "src": "5877:21:1",
+                          "referencedDeclaration": 2705,
+                          "src": "5877:21:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                             "typeString": "mapping(bytes32 => uint256[] storage ref)"
                           }
                         },
-                        "id": 2673,
+                        "id": 3142,
                         "indexExpression": {
-                          "id": 2672,
+                          "id": 3141,
                           "name": "key",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2631,
-                          "src": "5899:3:1",
+                          "referencedDeclaration": 3100,
+                          "src": "5899:3:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
@@ -32921,46 +32921,46 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "5877:26:1",
+                        "src": "5877:26:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                           "typeString": "uint256[] storage ref"
                         }
                       },
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+                      "id": 3143,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "5877:33:1",
+                      "src": "5877:33:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "5873:37:1",
+                    "src": "5873:37:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2830,
+                  "id": 3299,
                   "initializationExpression": {
                     "assignments": [
-                      2667
+                      3136
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 2667,
+                        "id": 3136,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "5866:1:1",
+                        "nameLocation": "5866:1:7",
                         "nodeType": "VariableDeclaration",
-                        "scope": 2830,
-                        "src": "5859:8:1",
+                        "scope": 3299,
+                        "src": "5859:8:7",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -32968,10 +32968,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 2666,
+                          "id": 3135,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "5859:6:1",
+                          "src": "5859:6:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -32980,17 +32980,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2669,
+                    "id": 3138,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 2668,
+                      "id": 3137,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "5870:1:1",
+                      "src": "5870:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -32998,11 +32998,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "5859:12:1"
+                    "src": "5859:12:7"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 2677,
+                      "id": 3146,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -33010,14 +33010,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "5912:3:1",
+                      "src": "5912:3:7",
                       "subExpression": {
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+                        "id": 3145,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2667,
-                        "src": "5912:1:1",
+                        "referencedDeclaration": 3136,
+                        "src": "5912:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -33028,47 +33028,47 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 2678,
+                    "id": 3147,
                     "nodeType": "ExpressionStatement",
-                    "src": "5912:3:1"
+                    "src": "5912:3:7"
                   },
                   "nodeType": "ForStatement",
-                  "src": "5854:1224:1"
+                  "src": "5854:1224:7"
                 },
                 {
                   "eventCall": {
                     "arguments": [
                       {
-                        "id": 2832,
+                        "id": 3301,
                         "name": "tokenType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2623,
-                        "src": "7106:9:1",
+                        "referencedDeclaration": 3092,
+                        "src": "7106:9:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
                       {
-                        "id": 2833,
+                        "id": 3302,
                         "name": "contractAddress",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2625,
-                        "src": "7117:15:1",
+                        "referencedDeclaration": 3094,
+                        "src": "7117:15:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address",
                           "typeString": "address"
                         }
                       },
                       {
-                        "id": 2834,
+                        "id": 3303,
                         "name": "tokenId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2627,
-                        "src": "7134:7:1",
+                        "referencedDeclaration": 3096,
+                        "src": "7134:7:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -33078,7 +33078,7 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2138",
+                          "typeIdentifier": "t_enum$_TokenType_$2607",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -33090,18 +33090,18 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 2831,
+                      "id": 3300,
                       "name": "TokenNotFound",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2182,
-                      "src": "7092:13:1",
+                      "referencedDeclaration": 2651,
+                      "src": "7092:13:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2138_$_t_address_$_t_uint256_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                         "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                       }
                     },
-                    "id": 2835,
+                    "id": 3304,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -33109,59 +33109,59 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "7092:50:1",
+                    "src": "7092:50:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2836,
+                  "id": 3305,
                   "nodeType": "EmitStatement",
-                  "src": "7087:55:1"
+                  "src": "7087:55:7"
                 }
               ]
             },
-            "id": 2838,
+            "id": 3307,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_untrackToken",
-            "nameLocation": "5545:13:1",
+            "nameLocation": "5545:13:7",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2628,
+              "id": 3097,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2623,
+                  "id": 3092,
                   "mutability": "mutable",
                   "name": "tokenType",
-                  "nameLocation": "5569:9:1",
+                  "nameLocation": "5569:9:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2838,
-                  "src": "5559:19:1",
+                  "scope": 3307,
+                  "src": "5559:19:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2138",
+                    "typeIdentifier": "t_enum$_TokenType_$2607",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
-                    "id": 2622,
+                    "id": 3091,
                     "nodeType": "UserDefinedTypeName",
                     "pathNode": {
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+                      "id": 3090,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
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-                      "src": "5559:9:1"
+                      "referencedDeclaration": 2607,
+                      "src": "5559:9:7"
                     },
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-                    "src": "5559:9:1",
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+                    "src": "5559:9:7",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2138",
+                      "typeIdentifier": "t_enum$_TokenType_$2607",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -33169,13 +33169,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2625,
+                  "id": 3094,
                   "mutability": "mutable",
                   "name": "contractAddress",
-                  "nameLocation": "5588:15:1",
+                  "nameLocation": "5588:15:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2838,
-                  "src": "5580:23:1",
+                  "scope": 3307,
+                  "src": "5580:23:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -33183,10 +33183,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 2624,
+                    "id": 3093,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "5580:7:1",
+                    "src": "5580:7:7",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -33197,13 +33197,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2627,
+                  "id": 3096,
                   "mutability": "mutable",
                   "name": "tokenId",
-                  "nameLocation": "5613:7:1",
+                  "nameLocation": "5613:7:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2838,
-                  "src": "5605:15:1",
+                  "scope": 3307,
+                  "src": "5605:15:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -33211,10 +33211,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 2626,
+                    "id": 3095,
                     "name": "uint256",
                     "nodeType": "ElementaryTypeName",
-                    "src": "5605:7:1",
+                    "src": "5605:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -33223,95 +33223,95 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "5558:63:1"
+              "src": "5558:63:7"
             },
             "returnParameters": {
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+              "id": 3098,
               "nodeType": "ParameterList",
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-              "src": "5631:0:1"
+              "src": "5631:0:7"
             },
-            "scope": 3391,
-            "src": "5536:1613:1",
+            "scope": 3860,
+            "src": "5536:1613:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 2999,
+              "id": 3468,
               "nodeType": "Block",
-              "src": "7228:1052:1",
+              "src": "7228:1052:7",
               "statements": [
                 {
                   "body": {
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+                    "id": 3379,
                     "nodeType": "Block",
-                    "src": "7288:381:1",
+                    "src": "7288:381:7",
                     "statements": [
                       {
                         "assignments": [
-                          2858
+                          3327
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2858,
+                            "id": 3327,
                             "mutability": "mutable",
                             "name": "tokenType",
-                            "nameLocation": "7312:9:1",
+                            "nameLocation": "7312:9:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2910,
-                            "src": "7302:19:1",
+                            "scope": 3379,
+                            "src": "7302:19:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             },
                             "typeName": {
-                              "id": 2857,
+                              "id": 3326,
                               "nodeType": "UserDefinedTypeName",
                               "pathNode": {
-                                "id": 2856,
+                                "id": 3325,
                                 "name": "TokenType",
                                 "nodeType": "IdentifierPath",
-                                "referencedDeclaration": 2138,
-                                "src": "7302:9:1"
+                                "referencedDeclaration": 2607,
+                                "src": "7302:9:7"
                               },
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-                              "src": "7302:9:1",
+                              "referencedDeclaration": 2607,
+                              "src": "7302:9:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2863,
+                        "id": 3332,
                         "initialValue": {
                           "expression": {
                             "baseExpression": {
-                              "id": 2859,
+                              "id": 3328,
                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "7324:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "7324:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
-                            "id": 2861,
+                            "id": 3330,
                             "indexExpression": {
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                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2846,
-                              "src": "7338:1:1",
+                              "referencedDeclaration": 3315,
+                              "src": "7338:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -33322,43 +33322,43 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "7324:16:1",
+                            "src": "7324:16:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                             }
                           },
-                          "id": 2862,
+                          "id": 3331,
                           "isConstant": false,
                           "isLValue": true,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "tokenType",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2226,
-                          "src": "7324:26:1",
+                          "referencedDeclaration": 2695,
+                          "src": "7324:26:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7302:48:1"
+                        "src": "7302:48:7"
                       },
                       {
                         "assignments": [
-                          2865
+                          3334
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2865,
+                            "id": 3334,
                             "mutability": "mutable",
                             "name": "contractAddress",
-                            "nameLocation": "7372:15:1",
+                            "nameLocation": "7372:15:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2910,
-                            "src": "7364:23:1",
+                            "scope": 3379,
+                            "src": "7364:23:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -33366,10 +33366,10 @@
                               "typeString": "address"
                             },
                             "typeName": {
-                              "id": 2864,
+                              "id": 3333,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "7364:7:1",
+                              "src": "7364:7:7",
                               "stateMutability": "nonpayable",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
@@ -33379,29 +33379,29 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2870,
+                        "id": 3339,
                         "initialValue": {
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                             "baseExpression": {
-                              "id": 2866,
+                              "id": 3335,
                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "7390:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "7390:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
-                            "id": 2868,
+                            "id": 3337,
                             "indexExpression": {
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+                              "id": 3336,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2846,
-                              "src": "7404:1:1",
+                              "referencedDeclaration": 3315,
+                              "src": "7404:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -33412,43 +33412,43 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "7390:16:1",
+                            "src": "7390:16:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                             }
                           },
-                          "id": 2869,
+                          "id": 3338,
                           "isConstant": false,
                           "isLValue": true,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "contractAddress",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2228,
-                          "src": "7390:32:1",
+                          "referencedDeclaration": 2697,
+                          "src": "7390:32:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
                             "typeString": "address"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7364:58:1"
+                        "src": "7364:58:7"
                       },
                       {
                         "assignments": [
-                          2872
+                          3341
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2872,
+                            "id": 3341,
                             "mutability": "mutable",
                             "name": "tokenId",
-                            "nameLocation": "7444:7:1",
+                            "nameLocation": "7444:7:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2910,
-                            "src": "7436:15:1",
+                            "scope": 3379,
+                            "src": "7436:15:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -33456,10 +33456,10 @@
                               "typeString": "uint256"
                             },
                             "typeName": {
-                              "id": 2871,
+                              "id": 3340,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "7436:7:1",
+                              "src": "7436:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -33468,29 +33468,29 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2877,
+                        "id": 3346,
                         "initialValue": {
                           "expression": {
                             "baseExpression": {
-                              "id": 2873,
+                              "id": 3342,
                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "7454:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "7454:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
-                            "id": 2875,
+                            "id": 3344,
                             "indexExpression": {
-                              "id": 2874,
+                              "id": 3343,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2846,
-                              "src": "7468:1:1",
+                              "referencedDeclaration": 3315,
+                              "src": "7468:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -33501,43 +33501,43 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "7454:16:1",
+                            "src": "7454:16:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_storage",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_storage",
                               "typeString": "struct TokenTracker.TrackedToken storage ref"
                             }
                           },
-                          "id": 2876,
+                          "id": 3345,
                           "isConstant": false,
                           "isLValue": true,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "tokenId",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2230,
-                          "src": "7454:24:1",
+                          "referencedDeclaration": 2699,
+                          "src": "7454:24:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7436:42:1"
+                        "src": "7436:42:7"
                       },
                       {
                         "assignments": [
-                          2879
+                          3348
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2879,
+                            "id": 3348,
                             "mutability": "mutable",
                             "name": "key",
-                            "nameLocation": "7500:3:1",
+                            "nameLocation": "7500:3:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2910,
-                            "src": "7492:11:1",
+                            "scope": 3379,
+                            "src": "7492:11:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -33545,10 +33545,10 @@
                               "typeString": "bytes32"
                             },
                             "typeName": {
-                              "id": 2878,
+                              "id": 3347,
                               "name": "bytes32",
                               "nodeType": "ElementaryTypeName",
-                              "src": "7492:7:1",
+                              "src": "7492:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -33557,7 +33557,7 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2904,
+                        "id": 3373,
                         "initialValue": {
                           "arguments": [
                             {
@@ -33567,14 +33567,14 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 2888,
+                                          "id": 3357,
                                           "name": "tokenType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2858,
-                                          "src": "7545:9:1",
+                                          "referencedDeclaration": 3327,
+                                          "src": "7545:9:7",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         }
@@ -33582,30 +33582,30 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         ],
-                                        "id": 2887,
+                                        "id": 3356,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "7537:7:1",
+                                        "src": "7537:7:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_uint256_$",
                                           "typeString": "type(uint256)"
                                         },
                                         "typeName": {
-                                          "id": 2886,
+                                          "id": 3355,
                                           "name": "uint256",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "7537:7:1",
+                                          "src": "7537:7:7",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 2889,
+                                      "id": 3358,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -33613,7 +33613,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "7537:18:1",
+                                      "src": "7537:18:7",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
@@ -33628,26 +33628,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 2885,
+                                    "id": 3354,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "7529:7:1",
+                                    "src": "7529:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2884,
+                                      "id": 3353,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "7529:7:1",
+                                      "src": "7529:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2890,
+                                  "id": 3359,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -33655,7 +33655,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "7529:27:1",
+                                  "src": "7529:27:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -33667,12 +33667,12 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 2895,
+                                          "id": 3364,
                                           "name": "contractAddress",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2865,
-                                          "src": "7574:15:1",
+                                          "referencedDeclaration": 3334,
+                                          "src": "7574:15:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
@@ -33686,26 +33686,26 @@
                                             "typeString": "address"
                                           }
                                         ],
-                                        "id": 2894,
+                                        "id": 3363,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "7566:7:1",
+                                        "src": "7566:7:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes20_$",
                                           "typeString": "type(bytes20)"
                                         },
                                         "typeName": {
-                                          "id": 2893,
+                                          "id": 3362,
                                           "name": "bytes20",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "7566:7:1",
+                                          "src": "7566:7:7",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 2896,
+                                      "id": 3365,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -33713,7 +33713,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "7566:24:1",
+                                      "src": "7566:24:7",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes20",
@@ -33728,26 +33728,26 @@
                                         "typeString": "bytes20"
                                       }
                                     ],
-                                    "id": 2892,
+                                    "id": 3361,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "7558:7:1",
+                                    "src": "7558:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2891,
+                                      "id": 3360,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "7558:7:1",
+                                      "src": "7558:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2897,
+                                  "id": 3366,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -33755,7 +33755,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "7558:33:1",
+                                  "src": "7558:33:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -33765,12 +33765,12 @@
                                 {
                                   "arguments": [
                                     {
-                                      "id": 2900,
+                                      "id": 3369,
                                       "name": "tokenId",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2872,
-                                      "src": "7601:7:1",
+                                      "referencedDeclaration": 3341,
+                                      "src": "7601:7:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -33784,26 +33784,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 2899,
+                                    "id": 3368,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "7593:7:1",
+                                    "src": "7593:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2898,
+                                      "id": 3367,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "7593:7:1",
+                                      "src": "7593:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2901,
+                                  "id": 3370,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -33811,7 +33811,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "7593:16:1",
+                                  "src": "7593:16:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -33835,39 +33835,39 @@
                                   }
                                 ],
                                 "expression": {
-                                  "id": 2882,
+                                  "id": 3351,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "7516:5:1",
+                                  "src": "7516:5:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                     "typeString": "type(bytes storage pointer)"
                                   },
                                   "typeName": {
-                                    "id": 2881,
+                                    "id": 3350,
                                     "name": "bytes",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "7516:5:1",
+                                    "src": "7516:5:7",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 2883,
+                                "id": 3352,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "memberName": "concat",
                                 "nodeType": "MemberAccess",
-                                "src": "7516:12:1",
+                                "src": "7516:12:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                   "typeString": "function () pure returns (bytes memory)"
                                 }
                               },
-                              "id": 2902,
+                              "id": 3371,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -33875,7 +33875,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "7516:94:1",
+                              "src": "7516:94:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_memory_ptr",
@@ -33890,18 +33890,18 @@
                                 "typeString": "bytes memory"
                               }
                             ],
-                            "id": 2880,
+                            "id": 3349,
                             "name": "keccak256",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 4294967288,
-                            "src": "7506:9:1",
+                            "src": "7506:9:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                               "typeString": "function (bytes memory) pure returns (bytes32)"
                             }
                           },
-                          "id": 2903,
+                          "id": 3372,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -33909,7 +33909,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "7506:105:1",
+                          "src": "7506:105:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
@@ -33917,11 +33917,11 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7492:119:1"
+                        "src": "7492:119:7"
                       },
                       {
                         "expression": {
-                          "id": 2908,
+                          "id": 3377,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -33929,28 +33929,28 @@
                           "nodeType": "UnaryOperation",
                           "operator": "delete",
                           "prefix": true,
-                          "src": "7625:33:1",
+                          "src": "7625:33:7",
                           "subExpression": {
                             "baseExpression": {
-                              "id": 2905,
+                              "id": 3374,
                               "name": "trackedTokenPositions",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2236,
-                              "src": "7632:21:1",
+                              "referencedDeclaration": 2705,
+                              "src": "7632:21:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                 "typeString": "mapping(bytes32 => uint256[] storage ref)"
                               }
                             },
-                            "id": 2907,
+                            "id": 3376,
                             "indexExpression": {
-                              "id": 2906,
+                              "id": 3375,
                               "name": "key",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2879,
-                              "src": "7654:3:1",
+                              "referencedDeclaration": 3348,
+                              "src": "7654:3:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -33961,7 +33961,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "7632:26:1",
+                            "src": "7632:26:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                               "typeString": "uint256[] storage ref"
@@ -33972,9 +33972,9 @@
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 2909,
+                        "id": 3378,
                         "nodeType": "ExpressionStatement",
-                        "src": "7625:33:1"
+                        "src": "7625:33:7"
                       }
                     ]
                   },
@@ -33983,18 +33983,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2852,
+                    "id": 3321,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 2849,
+                      "id": 3318,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2846,
-                      "src": "7257:1:1",
+                      "referencedDeclaration": 3315,
+                      "src": "7257:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -34004,51 +34004,51 @@
                     "operator": "<",
                     "rightExpression": {
                       "expression": {
-                        "id": 2850,
+                        "id": 3319,
                         "name": "trackedTokens",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2240,
-                        "src": "7261:13:1",
+                        "referencedDeclaration": 2709,
+                        "src": "7261:13:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                           "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                         }
                       },
-                      "id": 2851,
+                      "id": 3320,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "7261:20:1",
+                      "src": "7261:20:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "7257:24:1",
+                    "src": "7257:24:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2911,
+                  "id": 3380,
                   "initializationExpression": {
                     "assignments": [
-                      2846
+                      3315
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 2846,
+                        "id": 3315,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "7250:1:1",
+                        "nameLocation": "7250:1:7",
                         "nodeType": "VariableDeclaration",
-                        "scope": 2911,
-                        "src": "7243:8:1",
+                        "scope": 3380,
+                        "src": "7243:8:7",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -34056,10 +34056,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 2845,
+                          "id": 3314,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "7243:6:1",
+                          "src": "7243:6:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -34068,17 +34068,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2848,
+                    "id": 3317,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 2847,
+                      "id": 3316,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "7254:1:1",
+                      "src": "7254:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -34086,11 +34086,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "7243:12:1"
+                    "src": "7243:12:7"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 2854,
+                      "id": 3323,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -34098,14 +34098,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "7283:3:1",
+                      "src": "7283:3:7",
                       "subExpression": {
-                        "id": 2853,
+                        "id": 3322,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2846,
-                        "src": "7283:1:1",
+                        "referencedDeclaration": 3315,
+                        "src": "7283:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -34116,16 +34116,16 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 2855,
+                    "id": 3324,
                     "nodeType": "ExpressionStatement",
-                    "src": "7283:3:1"
+                    "src": "7283:3:7"
                   },
                   "nodeType": "ForStatement",
-                  "src": "7238:431:1"
+                  "src": "7238:431:7"
                 },
                 {
                   "expression": {
-                    "id": 2913,
+                    "id": 3382,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -34133,16 +34133,16 @@
                     "nodeType": "UnaryOperation",
                     "operator": "delete",
                     "prefix": true,
-                    "src": "7678:20:1",
+                    "src": "7678:20:7",
                     "subExpression": {
-                      "id": 2912,
+                      "id": 3381,
                       "name": "trackedTokens",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2240,
-                      "src": "7685:13:1",
+                      "referencedDeclaration": 2709,
+                      "src": "7685:13:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                        "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                         "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                       }
                     },
@@ -34151,79 +34151,79 @@
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2914,
+                  "id": 3383,
                   "nodeType": "ExpressionStatement",
-                  "src": "7678:20:1"
+                  "src": "7678:20:7"
                 },
                 {
                   "body": {
-                    "id": 2997,
+                    "id": 3466,
                     "nodeType": "Block",
-                    "src": "7761:513:1",
+                    "src": "7761:513:7",
                     "statements": [
                       {
                         "assignments": [
-                          2928
+                          3397
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2928,
+                            "id": 3397,
                             "mutability": "mutable",
                             "name": "tokenType",
-                            "nameLocation": "7785:9:1",
+                            "nameLocation": "7785:9:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2997,
-                            "src": "7775:19:1",
+                            "scope": 3466,
+                            "src": "7775:19:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             },
                             "typeName": {
-                              "id": 2927,
+                              "id": 3396,
                               "nodeType": "UserDefinedTypeName",
                               "pathNode": {
-                                "id": 2926,
+                                "id": 3395,
                                 "name": "TokenType",
                                 "nodeType": "IdentifierPath",
-                                "referencedDeclaration": 2138,
-                                "src": "7775:9:1"
+                                "referencedDeclaration": 2607,
+                                "src": "7775:9:7"
                               },
-                              "referencedDeclaration": 2138,
-                              "src": "7775:9:1",
+                              "referencedDeclaration": 2607,
+                              "src": "7775:9:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2933,
+                        "id": 3402,
                         "initialValue": {
                           "expression": {
                             "baseExpression": {
-                              "id": 2929,
+                              "id": 3398,
                               "name": "newTrackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2842,
-                              "src": "7797:16:1",
+                              "referencedDeclaration": 3311,
+                              "src": "7797:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                               }
                             },
-                            "id": 2931,
+                            "id": 3400,
                             "indexExpression": {
-                              "id": 2930,
+                              "id": 3399,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2916,
-                              "src": "7814:1:1",
+                              "referencedDeclaration": 3385,
+                              "src": "7814:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -34234,43 +34234,43 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "7797:19:1",
+                            "src": "7797:19:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                               "typeString": "struct TokenTracker.TrackedToken memory"
                             }
                           },
-                          "id": 2932,
+                          "id": 3401,
                           "isConstant": false,
                           "isLValue": true,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "tokenType",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2226,
-                          "src": "7797:29:1",
+                          "referencedDeclaration": 2695,
+                          "src": "7797:29:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7775:51:1"
+                        "src": "7775:51:7"
                       },
                       {
                         "assignments": [
-                          2935
+                          3404
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2935,
+                            "id": 3404,
                             "mutability": "mutable",
                             "name": "contractAddress",
-                            "nameLocation": "7848:15:1",
+                            "nameLocation": "7848:15:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2997,
-                            "src": "7840:23:1",
+                            "scope": 3466,
+                            "src": "7840:23:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -34278,10 +34278,10 @@
                               "typeString": "address"
                             },
                             "typeName": {
-                              "id": 2934,
+                              "id": 3403,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "7840:7:1",
+                              "src": "7840:7:7",
                               "stateMutability": "nonpayable",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
@@ -34291,29 +34291,29 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2940,
+                        "id": 3409,
                         "initialValue": {
                           "expression": {
                             "baseExpression": {
-                              "id": 2936,
+                              "id": 3405,
                               "name": "newTrackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2842,
-                              "src": "7866:16:1",
+                              "referencedDeclaration": 3311,
+                              "src": "7866:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                               }
                             },
-                            "id": 2938,
+                            "id": 3407,
                             "indexExpression": {
-                              "id": 2937,
+                              "id": 3406,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2916,
-                              "src": "7883:1:1",
+                              "referencedDeclaration": 3385,
+                              "src": "7883:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -34324,43 +34324,43 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "7866:19:1",
+                            "src": "7866:19:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                               "typeString": "struct TokenTracker.TrackedToken memory"
                             }
                           },
-                          "id": 2939,
+                          "id": 3408,
                           "isConstant": false,
                           "isLValue": true,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "contractAddress",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2228,
-                          "src": "7866:35:1",
+                          "referencedDeclaration": 2697,
+                          "src": "7866:35:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
                             "typeString": "address"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7840:61:1"
+                        "src": "7840:61:7"
                       },
                       {
                         "assignments": [
-                          2942
+                          3411
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2942,
+                            "id": 3411,
                             "mutability": "mutable",
                             "name": "tokenId",
-                            "nameLocation": "7923:7:1",
+                            "nameLocation": "7923:7:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2997,
-                            "src": "7915:15:1",
+                            "scope": 3466,
+                            "src": "7915:15:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -34368,10 +34368,10 @@
                               "typeString": "uint256"
                             },
                             "typeName": {
-                              "id": 2941,
+                              "id": 3410,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "7915:7:1",
+                              "src": "7915:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -34380,29 +34380,29 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2947,
+                        "id": 3416,
                         "initialValue": {
                           "expression": {
                             "baseExpression": {
-                              "id": 2943,
+                              "id": 3412,
                               "name": "newTrackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2842,
-                              "src": "7933:16:1",
+                              "referencedDeclaration": 3311,
+                              "src": "7933:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                               }
                             },
-                            "id": 2945,
+                            "id": 3414,
                             "indexExpression": {
-                              "id": 2944,
+                              "id": 3413,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2916,
-                              "src": "7950:1:1",
+                              "referencedDeclaration": 3385,
+                              "src": "7950:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -34413,43 +34413,43 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "7933:19:1",
+                            "src": "7933:19:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                               "typeString": "struct TokenTracker.TrackedToken memory"
                             }
                           },
-                          "id": 2946,
+                          "id": 3415,
                           "isConstant": false,
                           "isLValue": true,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "tokenId",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2230,
-                          "src": "7933:27:1",
+                          "referencedDeclaration": 2699,
+                          "src": "7933:27:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7915:45:1"
+                        "src": "7915:45:7"
                       },
                       {
                         "assignments": [
-                          2949
+                          3418
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2949,
+                            "id": 3418,
                             "mutability": "mutable",
                             "name": "key",
-                            "nameLocation": "7982:3:1",
+                            "nameLocation": "7982:3:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2997,
-                            "src": "7974:11:1",
+                            "scope": 3466,
+                            "src": "7974:11:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -34457,10 +34457,10 @@
                               "typeString": "bytes32"
                             },
                             "typeName": {
-                              "id": 2948,
+                              "id": 3417,
                               "name": "bytes32",
                               "nodeType": "ElementaryTypeName",
-                              "src": "7974:7:1",
+                              "src": "7974:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -34469,7 +34469,7 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2974,
+                        "id": 3443,
                         "initialValue": {
                           "arguments": [
                             {
@@ -34479,14 +34479,14 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 2958,
+                                          "id": 3427,
                                           "name": "tokenType",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2928,
-                                          "src": "8027:9:1",
+                                          "referencedDeclaration": 3397,
+                                          "src": "8027:9:7",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         }
@@ -34494,30 +34494,30 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                                            "typeIdentifier": "t_enum$_TokenType_$2607",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         ],
-                                        "id": 2957,
+                                        "id": 3426,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "8019:7:1",
+                                        "src": "8019:7:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_uint256_$",
                                           "typeString": "type(uint256)"
                                         },
                                         "typeName": {
-                                          "id": 2956,
+                                          "id": 3425,
                                           "name": "uint256",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "8019:7:1",
+                                          "src": "8019:7:7",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 2959,
+                                      "id": 3428,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -34525,7 +34525,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "8019:18:1",
+                                      "src": "8019:18:7",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
@@ -34540,26 +34540,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 2955,
+                                    "id": 3424,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "8011:7:1",
+                                    "src": "8011:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2954,
+                                      "id": 3423,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "8011:7:1",
+                                      "src": "8011:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2960,
+                                  "id": 3429,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -34567,7 +34567,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "8011:27:1",
+                                  "src": "8011:27:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -34579,12 +34579,12 @@
                                     {
                                       "arguments": [
                                         {
-                                          "id": 2965,
+                                          "id": 3434,
                                           "name": "contractAddress",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2935,
-                                          "src": "8056:15:1",
+                                          "referencedDeclaration": 3404,
+                                          "src": "8056:15:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address",
                                             "typeString": "address"
@@ -34598,26 +34598,26 @@
                                             "typeString": "address"
                                           }
                                         ],
-                                        "id": 2964,
+                                        "id": 3433,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "lValueRequested": false,
                                         "nodeType": "ElementaryTypeNameExpression",
-                                        "src": "8048:7:1",
+                                        "src": "8048:7:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_type$_t_bytes20_$",
                                           "typeString": "type(bytes20)"
                                         },
                                         "typeName": {
-                                          "id": 2963,
+                                          "id": 3432,
                                           "name": "bytes20",
                                           "nodeType": "ElementaryTypeName",
-                                          "src": "8048:7:1",
+                                          "src": "8048:7:7",
                                           "typeDescriptions": {}
                                         }
                                       },
-                                      "id": 2966,
+                                      "id": 3435,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -34625,7 +34625,7 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "8048:24:1",
+                                      "src": "8048:24:7",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes20",
@@ -34640,26 +34640,26 @@
                                         "typeString": "bytes20"
                                       }
                                     ],
-                                    "id": 2962,
+                                    "id": 3431,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "8040:7:1",
+                                    "src": "8040:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2961,
+                                      "id": 3430,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "8040:7:1",
+                                      "src": "8040:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2967,
+                                  "id": 3436,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -34667,7 +34667,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "8040:33:1",
+                                  "src": "8040:33:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -34677,12 +34677,12 @@
                                 {
                                   "arguments": [
                                     {
-                                      "id": 2970,
+                                      "id": 3439,
                                       "name": "tokenId",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2942,
-                                      "src": "8083:7:1",
+                                      "referencedDeclaration": 3411,
+                                      "src": "8083:7:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -34696,26 +34696,26 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 2969,
+                                    "id": 3438,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": true,
                                     "lValueRequested": false,
                                     "nodeType": "ElementaryTypeNameExpression",
-                                    "src": "8075:7:1",
+                                    "src": "8075:7:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_bytes32_$",
                                       "typeString": "type(bytes32)"
                                     },
                                     "typeName": {
-                                      "id": 2968,
+                                      "id": 3437,
                                       "name": "bytes32",
                                       "nodeType": "ElementaryTypeName",
-                                      "src": "8075:7:1",
+                                      "src": "8075:7:7",
                                       "typeDescriptions": {}
                                     }
                                   },
-                                  "id": 2971,
+                                  "id": 3440,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -34723,7 +34723,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "8075:16:1",
+                                  "src": "8075:16:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -34747,39 +34747,39 @@
                                   }
                                 ],
                                 "expression": {
-                                  "id": 2952,
+                                  "id": 3421,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "7998:5:1",
+                                  "src": "7998:5:7",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                                     "typeString": "type(bytes storage pointer)"
                                   },
                                   "typeName": {
-                                    "id": 2951,
+                                    "id": 3420,
                                     "name": "bytes",
                                     "nodeType": "ElementaryTypeName",
-                                    "src": "7998:5:1",
+                                    "src": "7998:5:7",
                                     "typeDescriptions": {}
                                   }
                                 },
-                                "id": 2953,
+                                "id": 3422,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "memberName": "concat",
                                 "nodeType": "MemberAccess",
-                                "src": "7998:12:1",
+                                "src": "7998:12:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                   "typeString": "function () pure returns (bytes memory)"
                                 }
                               },
-                              "id": 2972,
+                              "id": 3441,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -34787,7 +34787,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "7998:94:1",
+                              "src": "7998:94:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_memory_ptr",
@@ -34802,18 +34802,18 @@
                                 "typeString": "bytes memory"
                               }
                             ],
-                            "id": 2950,
+                            "id": 3419,
                             "name": "keccak256",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 4294967288,
-                            "src": "7988:9:1",
+                            "src": "7988:9:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                               "typeString": "function (bytes memory) pure returns (bytes32)"
                             }
                           },
-                          "id": 2973,
+                          "id": 3442,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -34821,7 +34821,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "7988:105:1",
+                          "src": "7988:105:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
@@ -34829,82 +34829,82 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "7974:119:1"
+                        "src": "7974:119:7"
                       },
                       {
                         "assignments": [
-                          2977
+                          3446
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 2977,
+                            "id": 3446,
                             "mutability": "mutable",
                             "name": "t",
-                            "nameLocation": "8127:1:1",
+                            "nameLocation": "8127:1:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2997,
-                            "src": "8107:21:1",
+                            "scope": 3466,
+                            "src": "8107:21:7",
                             "stateVariable": false,
                             "storageLocation": "memory",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                               "typeString": "struct TokenTracker.TrackedToken"
                             },
                             "typeName": {
-                              "id": 2976,
+                              "id": 3445,
                               "nodeType": "UserDefinedTypeName",
                               "pathNode": {
-                                "id": 2975,
+                                "id": 3444,
                                 "name": "TrackedToken",
                                 "nodeType": "IdentifierPath",
-                                "referencedDeclaration": 2231,
-                                "src": "8107:12:1"
+                                "referencedDeclaration": 2700,
+                                "src": "8107:12:7"
                               },
-                              "referencedDeclaration": 2231,
-                              "src": "8107:12:1",
+                              "referencedDeclaration": 2700,
+                              "src": "8107:12:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_storage_ptr",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_storage_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken"
                               }
                             },
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2983,
+                        "id": 3452,
                         "initialValue": {
                           "arguments": [
                             {
-                              "id": 2979,
+                              "id": 3448,
                               "name": "tokenType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2928,
-                              "src": "8144:9:1",
+                              "referencedDeclaration": 3397,
+                              "src": "8144:9:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             {
-                              "id": 2980,
+                              "id": 3449,
                               "name": "contractAddress",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2935,
-                              "src": "8155:15:1",
+                              "referencedDeclaration": 3404,
+                              "src": "8155:15:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
                                 "typeString": "address"
                               }
                             },
                             {
-                              "id": 2981,
+                              "id": 3450,
                               "name": "tokenId",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2942,
-                              "src": "8172:7:1",
+                              "referencedDeclaration": 3411,
+                              "src": "8172:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -34914,7 +34914,7 @@
                           "expression": {
                             "argumentTypes": [
                               {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               },
                               {
@@ -34926,18 +34926,18 @@
                                 "typeString": "uint256"
                               }
                             ],
-                            "id": 2978,
+                            "id": 3447,
                             "name": "TrackedToken",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2231,
-                            "src": "8131:12:1",
+                            "referencedDeclaration": 2700,
+                            "src": "8131:12:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_struct$_TrackedToken_$2231_storage_ptr_$",
+                              "typeIdentifier": "t_type$_t_struct$_TrackedToken_$2700_storage_ptr_$",
                               "typeString": "type(struct TokenTracker.TrackedToken storage pointer)"
                             }
                           },
-                          "id": 2982,
+                          "id": 3451,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -34945,28 +34945,28 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "8131:49:1",
+                          "src": "8131:49:7",
                           "tryCall": false,
                           "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                            "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                             "typeString": "struct TokenTracker.TrackedToken memory"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "8107:73:1"
+                        "src": "8107:73:7"
                       },
                       {
                         "expression": {
                           "arguments": [
                             {
-                              "id": 2987,
+                              "id": 3456,
                               "name": "t",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2977,
-                              "src": "8213:1:1",
+                              "referencedDeclaration": 3446,
+                              "src": "8213:1:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken memory"
                               }
                             }
@@ -34974,36 +34974,36 @@
                           "expression": {
                             "argumentTypes": [
                               {
-                                "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                                "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken memory"
                               }
                             ],
                             "expression": {
-                              "id": 2984,
+                              "id": 3453,
                               "name": "trackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2240,
-                              "src": "8194:13:1",
+                              "referencedDeclaration": 2709,
+                              "src": "8194:13:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage",
                                 "typeString": "struct TokenTracker.TrackedToken storage ref[] storage ref"
                               }
                             },
-                            "id": 2986,
+                            "id": 3455,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "push",
                             "nodeType": "MemberAccess",
-                            "src": "8194:18:1",
+                            "src": "8194:18:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr_$_t_struct$_TrackedToken_$2231_storage_$returns$__$bound_to$_t_array$_t_struct$_TrackedToken_$2231_storage_$dyn_storage_ptr_$",
+                              "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr_$_t_struct$_TrackedToken_$2700_storage_$returns$__$bound_to$_t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr_$",
                               "typeString": "function (struct TokenTracker.TrackedToken storage ref[] storage pointer,struct TokenTracker.TrackedToken storage ref)"
                             }
                           },
-                          "id": 2988,
+                          "id": 3457,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -35011,27 +35011,27 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "8194:21:1",
+                          "src": "8194:21:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 2989,
+                        "id": 3458,
                         "nodeType": "ExpressionStatement",
-                        "src": "8194:21:1"
+                        "src": "8194:21:7"
                       },
                       {
                         "expression": {
                           "arguments": [
                             {
-                              "id": 2994,
+                              "id": 3463,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2916,
-                              "src": "8261:1:1",
+                              "referencedDeclaration": 3385,
+                              "src": "8261:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -35047,25 +35047,25 @@
                             ],
                             "expression": {
                               "baseExpression": {
-                                "id": 2990,
+                                "id": 3459,
                                 "name": "trackedTokenPositions",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2236,
-                                "src": "8229:21:1",
+                                "referencedDeclaration": 2705,
+                                "src": "8229:21:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_uint256_$dyn_storage_$",
                                   "typeString": "mapping(bytes32 => uint256[] storage ref)"
                                 }
                               },
-                              "id": 2992,
+                              "id": 3461,
                               "indexExpression": {
-                                "id": 2991,
+                                "id": 3460,
                                 "name": "key",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 2949,
-                                "src": "8251:3:1",
+                                "referencedDeclaration": 3418,
+                                "src": "8251:3:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -35076,26 +35076,26 @@
                               "isPure": false,
                               "lValueRequested": false,
                               "nodeType": "IndexAccess",
-                              "src": "8229:26:1",
+                              "src": "8229:26:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint256_$dyn_storage",
                                 "typeString": "uint256[] storage ref"
                               }
                             },
-                            "id": 2993,
+                            "id": 3462,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "push",
                             "nodeType": "MemberAccess",
-                            "src": "8229:31:1",
+                            "src": "8229:31:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_uint256_$dyn_storage_ptr_$_t_uint256_$returns$__$bound_to$_t_array$_t_uint256_$dyn_storage_ptr_$",
                               "typeString": "function (uint256[] storage pointer,uint256)"
                             }
                           },
-                          "id": 2995,
+                          "id": 3464,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -35103,16 +35103,16 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "8229:34:1",
+                          "src": "8229:34:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 2996,
+                        "id": 3465,
                         "nodeType": "ExpressionStatement",
-                        "src": "8229:34:1"
+                        "src": "8229:34:7"
                       }
                     ]
                   },
@@ -35121,18 +35121,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2922,
+                    "id": 3391,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 2919,
+                      "id": 3388,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2916,
-                      "src": "7727:1:1",
+                      "referencedDeclaration": 3385,
+                      "src": "7727:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -35142,51 +35142,51 @@
                     "operator": "<",
                     "rightExpression": {
                       "expression": {
-                        "id": 2920,
+                        "id": 3389,
                         "name": "newTrackedTokens",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2842,
-                        "src": "7731:16:1",
+                        "referencedDeclaration": 3311,
+                        "src": "7731:16:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                           "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                         }
                       },
-                      "id": 2921,
+                      "id": 3390,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "7731:23:1",
+                      "src": "7731:23:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "7727:27:1",
+                    "src": "7727:27:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2998,
+                  "id": 3467,
                   "initializationExpression": {
                     "assignments": [
-                      2916
+                      3385
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 2916,
+                        "id": 3385,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "7720:1:1",
+                        "nameLocation": "7720:1:7",
                         "nodeType": "VariableDeclaration",
-                        "scope": 2998,
-                        "src": "7713:8:1",
+                        "scope": 3467,
+                        "src": "7713:8:7",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -35194,10 +35194,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 2915,
+                          "id": 3384,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "7713:6:1",
+                          "src": "7713:6:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -35206,17 +35206,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2918,
+                    "id": 3387,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 2917,
+                      "id": 3386,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "7724:1:1",
+                      "src": "7724:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -35224,11 +35224,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "7713:12:1"
+                    "src": "7713:12:7"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 2924,
+                      "id": 3393,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -35236,14 +35236,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "7756:3:1",
+                      "src": "7756:3:7",
                       "subExpression": {
-                        "id": 2923,
+                        "id": 3392,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2916,
-                        "src": "7756:1:1",
+                        "referencedDeclaration": 3385,
+                        "src": "7756:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -35254,104 +35254,104 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 2925,
+                    "id": 3394,
                     "nodeType": "ExpressionStatement",
-                    "src": "7756:3:1"
+                    "src": "7756:3:7"
                   },
                   "nodeType": "ForStatement",
-                  "src": "7708:566:1"
+                  "src": "7708:566:7"
                 }
               ]
             },
-            "id": 3000,
+            "id": 3469,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_overrideTrack",
-            "nameLocation": "7164:14:1",
+            "nameLocation": "7164:14:7",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2843,
+              "id": 3312,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2842,
+                  "id": 3311,
                   "mutability": "mutable",
                   "name": "newTrackedTokens",
-                  "nameLocation": "7201:16:1",
+                  "nameLocation": "7201:16:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 3000,
-                  "src": "7179:38:1",
+                  "scope": 3469,
+                  "src": "7179:38:7",
                   "stateVariable": false,
                   "storageLocation": "memory",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                    "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                     "typeString": "struct TokenTracker.TrackedToken[]"
                   },
                   "typeName": {
                     "baseType": {
-                      "id": 2840,
+                      "id": 3309,
                       "nodeType": "UserDefinedTypeName",
                       "pathNode": {
-                        "id": 2839,
+                        "id": 3308,
                         "name": "TrackedToken",
                         "nodeType": "IdentifierPath",
-                        "referencedDeclaration": 2231,
-                        "src": "7179:12:1"
+                        "referencedDeclaration": 2700,
+                        "src": "7179:12:7"
                       },
-                      "referencedDeclaration": 2231,
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@@ -35359,10 +35359,10 @@
                         "typeString": "uint32"
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@@ -35371,7 +35371,7 @@
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@@ -35379,32 +35379,32 @@
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                           "typeString": "uint256"
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@@ -35414,21 +35414,21 @@
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                             "typeString": "int_const 96"
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                           "value": "96"
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@@ -35442,26 +35442,26 @@
                           "typeString": "uint256"
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@@ -35477,7 +35477,7 @@
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@@ -35487,7 +35487,7 @@
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                           "typeString": "uint256"
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@@ -35518,21 +35518,21 @@
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                               "typeString": "int_const 96"
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                             "value": "96"
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@@ -35542,31 +35542,31 @@
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                             "typeString": "uint256"
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@@ -35574,14 +35574,14 @@
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@@ -35600,7 +35600,7 @@
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@@ -35622,76 +35622,76 @@
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+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_storage_$dyn_storage_ptr",
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@@ -35705,45 +35705,45 @@
                           "typeString": "uint32"
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@@ -35751,63 +35751,63 @@
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                             "typeDescriptions": {
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+                              "typeIdentifier": "t_enum$_TokenType_$2607",
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                             "visibility": "internal"
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@@ -35816,12 +35816,12 @@
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@@ -35832,7 +35832,7 @@
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@@ -35842,18 +35842,18 @@
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@@ -35863,21 +35863,21 @@
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@@ -35887,50 +35887,50 @@
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                                             "typeString": "int_const 32"
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-                                        "id": 3057,
+                                        "id": 3526,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
                                         "lValueRequested": false,
                                         "leftExpression": {
-                                          "id": 3055,
+                                          "id": 3524,
                                           "name": "i",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 3038,
-                                          "src": "8688:1:1",
+                                          "referencedDeclaration": 3507,
+                                          "src": "8688:1:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -35940,21 +35940,21 @@
                                         "operator": "*",
                                         "rightExpression": {
                                           "hexValue": "3936",
-                                          "id": 3056,
+                                          "id": 3525,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "8692:2:1",
+                                          "src": "8692:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_96_by_1",
                                             "typeString": "int_const 96"
                                           },
                                           "value": "96"
                                         },
-                                        "src": "8688:6:1",
+                                        "src": "8688:6:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -35973,18 +35973,18 @@
                                         "typeString": "bytes calldata slice"
                                       }
                                     ],
-                                    "id": 3053,
+                                    "id": 3522,
                                     "name": "_asByte32",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3390,
-                                    "src": "8673:9:1",
+                                    "referencedDeclaration": 3859,
+                                    "src": "8673:9:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                       "typeString": "function (bytes memory) pure returns (bytes32)"
                                     }
                                   },
-                                  "id": 3064,
+                                  "id": 3533,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -35992,7 +35992,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "8673:37:1",
+                                  "src": "8673:37:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -36007,26 +36007,26 @@
                                     "typeString": "bytes32"
                                   }
                                 ],
-                                "id": 3052,
+                                "id": 3521,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
                                 "lValueRequested": false,
                                 "nodeType": "ElementaryTypeNameExpression",
-                                "src": "8665:7:1",
+                                "src": "8665:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_type$_t_uint256_$",
                                   "typeString": "type(uint256)"
                                 },
                                 "typeName": {
-                                  "id": 3051,
+                                  "id": 3520,
                                   "name": "uint256",
                                   "nodeType": "ElementaryTypeName",
-                                  "src": "8665:7:1",
+                                  "src": "8665:7:7",
                                   "typeDescriptions": {}
                                 }
                               },
-                              "id": 3065,
+                              "id": 3534,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -36034,7 +36034,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "8665:46:1",
+                              "src": "8665:46:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
@@ -36049,18 +36049,18 @@
                                 "typeString": "uint256"
                               }
                             ],
-                            "id": 3050,
+                            "id": 3519,
                             "name": "TokenType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2138,
-                            "src": "8655:9:1",
+                            "referencedDeclaration": 2607,
+                            "src": "8655:9:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2138_$",
+                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                               "typeString": "type(enum TokenTracker.TokenType)"
                             }
                           },
-                          "id": 3066,
+                          "id": 3535,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -36068,30 +36068,30 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "8655:57:1",
+                          "src": "8655:57:7",
                           "tryCall": false,
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "8633:79:1"
+                        "src": "8633:79:7"
                       },
                       {
                         "assignments": [
-                          3069
+                          3538
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 3069,
+                            "id": 3538,
                             "mutability": "mutable",
                             "name": "contractAddress",
-                            "nameLocation": "8734:15:1",
+                            "nameLocation": "8734:15:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 3121,
-                            "src": "8726:23:1",
+                            "scope": 3590,
+                            "src": "8726:23:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -36099,10 +36099,10 @@
                               "typeString": "address"
                             },
                             "typeName": {
-                              "id": 3068,
+                              "id": 3537,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "8726:7:1",
+                              "src": "8726:7:7",
                               "stateMutability": "nonpayable",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
@@ -36112,7 +36112,7 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 3090,
+                        "id": 3559,
                         "initialValue": {
                           "arguments": [
                             {
@@ -36121,12 +36121,12 @@
                                   "arguments": [
                                     {
                                       "baseExpression": {
-                                        "id": 3075,
+                                        "id": 3544,
                                         "name": "data",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3002,
-                                        "src": "8778:4:1",
+                                        "referencedDeclaration": 3471,
+                                        "src": "8778:4:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes_calldata_ptr",
                                           "typeString": "bytes calldata"
@@ -36137,7 +36137,7 @@
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
-                                        "id": 3085,
+                                        "id": 3554,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -36147,18 +36147,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
-                                          "id": 3083,
+                                          "id": 3552,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "leftExpression": {
-                                            "id": 3081,
+                                            "id": 3550,
                                             "name": "i",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 3038,
-                                            "src": "8797:1:1",
+                                            "referencedDeclaration": 3507,
+                                            "src": "8797:1:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint32",
                                               "typeString": "uint32"
@@ -36168,21 +36168,21 @@
                                           "operator": "*",
                                           "rightExpression": {
                                             "hexValue": "3936",
-                                            "id": 3082,
+                                            "id": 3551,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": true,
                                             "kind": "number",
                                             "lValueRequested": false,
                                             "nodeType": "Literal",
-                                            "src": "8801:2:1",
+                                            "src": "8801:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
-                                          "src": "8797:6:1",
+                                          "src": "8797:6:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -36192,39 +36192,39 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3532",
-                                          "id": 3084,
+                                          "id": 3553,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "8806:2:1",
+                                          "src": "8806:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_52_by_1",
                                             "typeString": "int_const 52"
                                           },
                                           "value": "52"
                                         },
-                                        "src": "8797:11:1",
+                                        "src": "8797:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         }
                                       },
-                                      "id": 3086,
+                                      "id": 3555,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "nodeType": "IndexRangeAccess",
-                                      "src": "8778:31:1",
+                                      "src": "8778:31:7",
                                       "startExpression": {
                                         "commonType": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
-                                        "id": 3080,
+                                        "id": 3549,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -36234,18 +36234,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
-                                          "id": 3078,
+                                          "id": 3547,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "leftExpression": {
-                                            "id": 3076,
+                                            "id": 3545,
                                             "name": "i",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 3038,
-                                            "src": "8783:1:1",
+                                            "referencedDeclaration": 3507,
+                                            "src": "8783:1:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint32",
                                               "typeString": "uint32"
@@ -36255,21 +36255,21 @@
                                           "operator": "*",
                                           "rightExpression": {
                                             "hexValue": "3936",
-                                            "id": 3077,
+                                            "id": 3546,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": true,
                                             "kind": "number",
                                             "lValueRequested": false,
                                             "nodeType": "Literal",
-                                            "src": "8787:2:1",
+                                            "src": "8787:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
-                                          "src": "8783:6:1",
+                                          "src": "8783:6:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -36279,21 +36279,21 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3332",
-                                          "id": 3079,
+                                          "id": 3548,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "8792:2:1",
+                                          "src": "8792:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_32_by_1",
                                             "typeString": "int_const 32"
                                           },
                                           "value": "32"
                                         },
-                                        "src": "8783:11:1",
+                                        "src": "8783:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -36312,18 +36312,18 @@
                                         "typeString": "bytes calldata slice"
                                       }
                                     ],
-                                    "id": 3074,
+                                    "id": 3543,
                                     "name": "_asByte32",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3390,
-                                    "src": "8768:9:1",
+                                    "referencedDeclaration": 3859,
+                                    "src": "8768:9:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                       "typeString": "function (bytes memory) pure returns (bytes32)"
                                     }
                                   },
-                                  "id": 3087,
+                                  "id": 3556,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -36331,7 +36331,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "8768:42:1",
+                                  "src": "8768:42:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -36346,26 +36346,26 @@
                                     "typeString": "bytes32"
                                   }
                                 ],
-                                "id": 3073,
+                                "id": 3542,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
                                 "lValueRequested": false,
                                 "nodeType": "ElementaryTypeNameExpression",
-                                "src": "8760:7:1",
+                                "src": "8760:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_type$_t_bytes20_$",
                                   "typeString": "type(bytes20)"
                                 },
                                 "typeName": {
-                                  "id": 3072,
+                                  "id": 3541,
                                   "name": "bytes20",
                                   "nodeType": "ElementaryTypeName",
-                                  "src": "8760:7:1",
+                                  "src": "8760:7:7",
                                   "typeDescriptions": {}
                                 }
                               },
-                              "id": 3088,
+                              "id": 3557,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -36373,7 +36373,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "8760:51:1",
+                              "src": "8760:51:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes20",
@@ -36388,26 +36388,26 @@
                                 "typeString": "bytes20"
                               }
                             ],
-                            "id": 3071,
+                            "id": 3540,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "8752:7:1",
+                            "src": "8752:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_address_$",
                               "typeString": "type(address)"
                             },
                             "typeName": {
-                              "id": 3070,
+                              "id": 3539,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "8752:7:1",
+                              "src": "8752:7:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 3089,
+                          "id": 3558,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -36415,7 +36415,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "8752:60:1",
+                          "src": "8752:60:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
@@ -36423,22 +36423,22 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "8726:86:1"
+                        "src": "8726:86:7"
                       },
                       {
                         "assignments": [
-                          3092
+                          3561
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 3092,
+                            "id": 3561,
                             "mutability": "mutable",
                             "name": "tokenId",
-                            "nameLocation": "8834:7:1",
+                            "nameLocation": "8834:7:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 3121,
-                            "src": "8826:15:1",
+                            "scope": 3590,
+                            "src": "8826:15:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -36446,10 +36446,10 @@
                               "typeString": "uint256"
                             },
                             "typeName": {
-                              "id": 3091,
+                              "id": 3560,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "8826:7:1",
+                              "src": "8826:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -36458,19 +36458,19 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 3110,
+                        "id": 3579,
                         "initialValue": {
                           "arguments": [
                             {
                               "arguments": [
                                 {
                                   "baseExpression": {
-                                    "id": 3096,
+                                    "id": 3565,
                                     "name": "data",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3002,
-                                    "src": "8862:4:1",
+                                    "referencedDeclaration": 3471,
+                                    "src": "8862:4:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -36481,7 +36481,7 @@
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     },
-                                    "id": 3106,
+                                    "id": 3575,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -36491,18 +36491,18 @@
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
                                       },
-                                      "id": 3104,
+                                      "id": 3573,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "leftExpression": {
-                                        "id": 3102,
+                                        "id": 3571,
                                         "name": "i",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3038,
-                                        "src": "8881:1:1",
+                                        "referencedDeclaration": 3507,
+                                        "src": "8881:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -36512,21 +36512,21 @@
                                       "operator": "*",
                                       "rightExpression": {
                                         "hexValue": "3936",
-                                        "id": 3103,
+                                        "id": 3572,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "kind": "number",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "8885:2:1",
+                                        "src": "8885:2:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_rational_96_by_1",
                                           "typeString": "int_const 96"
                                         },
                                         "value": "96"
                                       },
-                                      "src": "8881:6:1",
+                                      "src": "8881:6:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
@@ -36536,39 +36536,39 @@
                                     "operator": "+",
                                     "rightExpression": {
                                       "hexValue": "3936",
-                                      "id": 3105,
+                                      "id": 3574,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "kind": "number",
                                       "lValueRequested": false,
                                       "nodeType": "Literal",
-                                      "src": "8890:2:1",
+                                      "src": "8890:2:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_rational_96_by_1",
                                         "typeString": "int_const 96"
                                       },
                                       "value": "96"
                                     },
-                                    "src": "8881:11:1",
+                                    "src": "8881:11:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     }
                                   },
-                                  "id": 3107,
+                                  "id": 3576,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "nodeType": "IndexRangeAccess",
-                                  "src": "8862:31:1",
+                                  "src": "8862:31:7",
                                   "startExpression": {
                                     "commonType": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     },
-                                    "id": 3101,
+                                    "id": 3570,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -36578,18 +36578,18 @@
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
                                       },
-                                      "id": 3099,
+                                      "id": 3568,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "leftExpression": {
-                                        "id": 3097,
+                                        "id": 3566,
                                         "name": "i",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3038,
-                                        "src": "8867:1:1",
+                                        "referencedDeclaration": 3507,
+                                        "src": "8867:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -36599,21 +36599,21 @@
                                       "operator": "*",
                                       "rightExpression": {
                                         "hexValue": "3936",
-                                        "id": 3098,
+                                        "id": 3567,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "kind": "number",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "8871:2:1",
+                                        "src": "8871:2:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_rational_96_by_1",
                                           "typeString": "int_const 96"
                                         },
                                         "value": "96"
                                       },
-                                      "src": "8867:6:1",
+                                      "src": "8867:6:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
@@ -36623,21 +36623,21 @@
                                     "operator": "+",
                                     "rightExpression": {
                                       "hexValue": "3634",
-                                      "id": 3100,
+                                      "id": 3569,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "kind": "number",
                                       "lValueRequested": false,
                                       "nodeType": "Literal",
-                                      "src": "8876:2:1",
+                                      "src": "8876:2:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_rational_64_by_1",
                                         "typeString": "int_const 64"
                                       },
                                       "value": "64"
                                     },
-                                    "src": "8867:11:1",
+                                    "src": "8867:11:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
@@ -36656,18 +36656,18 @@
                                     "typeString": "bytes calldata slice"
                                   }
                                 ],
-                                "id": 3095,
+                                "id": 3564,
                                 "name": "_asByte32",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3390,
-                                "src": "8852:9:1",
+                                "referencedDeclaration": 3859,
+                                "src": "8852:9:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                   "typeString": "function (bytes memory) pure returns (bytes32)"
                                 }
                               },
-                              "id": 3108,
+                              "id": 3577,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -36675,7 +36675,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "8852:42:1",
+                              "src": "8852:42:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
@@ -36690,26 +36690,26 @@
                                 "typeString": "bytes32"
                               }
                             ],
-                            "id": 3094,
+                            "id": 3563,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "8844:7:1",
+                            "src": "8844:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_uint256_$",
                               "typeString": "type(uint256)"
                             },
                             "typeName": {
-                              "id": 3093,
+                              "id": 3562,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "8844:7:1",
+                              "src": "8844:7:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 3109,
+                          "id": 3578,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -36717,7 +36717,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "8844:51:1",
+                          "src": "8844:51:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
@@ -36725,36 +36725,36 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "8826:69:1"
+                        "src": "8826:69:7"
                       },
                       {
                         "expression": {
-                          "id": 3119,
+                          "id": 3588,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
                             "baseExpression": {
-                              "id": 3111,
+                              "id": 3580,
                               "name": "newTrackedTokens",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3029,
-                              "src": "8909:16:1",
+                              "referencedDeclaration": 3498,
+                              "src": "8909:16:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                                "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                                 "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                               }
                             },
-                            "id": 3113,
+                            "id": 3582,
                             "indexExpression": {
-                              "id": 3112,
+                              "id": 3581,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3038,
-                              "src": "8926:1:1",
+                              "referencedDeclaration": 3507,
+                              "src": "8926:1:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -36765,9 +36765,9 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "8909:19:1",
+                            "src": "8909:19:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                               "typeString": "struct TokenTracker.TrackedToken memory"
                             }
                           },
@@ -36776,36 +36776,36 @@
                           "rightHandSide": {
                             "arguments": [
                               {
-                                "id": 3115,
+                                "id": 3584,
                                 "name": "tokenType",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3049,
-                                "src": "8944:9:1",
+                                "referencedDeclaration": 3518,
+                                "src": "8944:9:7",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_enum$_TokenType_$2138",
+                                  "typeIdentifier": "t_enum$_TokenType_$2607",
                                   "typeString": "enum TokenTracker.TokenType"
                                 }
                               },
                               {
-                                "id": 3116,
+                                "id": 3585,
                                 "name": "contractAddress",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3069,
-                                "src": "8955:15:1",
+                                "referencedDeclaration": 3538,
+                                "src": "8955:15:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_address",
                                   "typeString": "address"
                                 }
                               },
                               {
-                                "id": 3117,
+                                "id": 3586,
                                 "name": "tokenId",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3092,
-                                "src": "8972:7:1",
+                                "referencedDeclaration": 3561,
+                                "src": "8972:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -36815,7 +36815,7 @@
                             "expression": {
                               "argumentTypes": [
                                 {
-                                  "typeIdentifier": "t_enum$_TokenType_$2138",
+                                  "typeIdentifier": "t_enum$_TokenType_$2607",
                                   "typeString": "enum TokenTracker.TokenType"
                                 },
                                 {
@@ -36827,18 +36827,18 @@
                                   "typeString": "uint256"
                                 }
                               ],
-                              "id": 3114,
+                              "id": 3583,
                               "name": "TrackedToken",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2231,
-                              "src": "8931:12:1",
+                              "referencedDeclaration": 2700,
+                              "src": "8931:12:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_type$_t_struct$_TrackedToken_$2231_storage_ptr_$",
+                                "typeIdentifier": "t_type$_t_struct$_TrackedToken_$2700_storage_ptr_$",
                                 "typeString": "type(struct TokenTracker.TrackedToken storage pointer)"
                               }
                             },
-                            "id": 3118,
+                            "id": 3587,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -36846,22 +36846,22 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "8931:49:1",
+                            "src": "8931:49:7",
                             "tryCall": false,
                             "typeDescriptions": {
-                              "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                              "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                               "typeString": "struct TokenTracker.TrackedToken memory"
                             }
                           },
-                          "src": "8909:71:1",
+                          "src": "8909:71:7",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_struct$_TrackedToken_$2231_memory_ptr",
+                            "typeIdentifier": "t_struct$_TrackedToken_$2700_memory_ptr",
                             "typeString": "struct TokenTracker.TrackedToken memory"
                           }
                         },
-                        "id": 3120,
+                        "id": 3589,
                         "nodeType": "ExpressionStatement",
-                        "src": "8909:71:1"
+                        "src": "8909:71:7"
                       }
                     ]
                   },
@@ -36870,18 +36870,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
-                    "id": 3043,
+                    "id": 3512,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 3041,
+                      "id": 3510,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 3038,
-                      "src": "8599:1:1",
+                      "referencedDeclaration": 3507,
+                      "src": "8599:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -36890,38 +36890,38 @@
                     "nodeType": "BinaryOperation",
                     "operator": "<",
                     "rightExpression": {
-                      "id": 3042,
+                      "id": 3511,
                       "name": "numTokens",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 3006,
-                      "src": "8603:9:1",
+                      "referencedDeclaration": 3475,
+                      "src": "8603:9:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "8599:13:1",
+                    "src": "8599:13:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 3122,
+                  "id": 3591,
                   "initializationExpression": {
                     "assignments": [
-                      3038
+                      3507
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 3038,
+                        "id": 3507,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "8592:1:1",
+                        "nameLocation": "8592:1:7",
                         "nodeType": "VariableDeclaration",
-                        "scope": 3122,
-                        "src": "8585:8:1",
+                        "scope": 3591,
+                        "src": "8585:8:7",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -36929,10 +36929,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 3037,
+                          "id": 3506,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "8585:6:1",
+                          "src": "8585:6:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -36941,17 +36941,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 3040,
+                    "id": 3509,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 3039,
+                      "id": 3508,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "8596:1:1",
+                      "src": "8596:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -36959,11 +36959,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "8585:12:1"
+                    "src": "8585:12:7"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 3045,
+                      "id": 3514,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -36971,14 +36971,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "8614:3:1",
+                      "src": "8614:3:7",
                       "subExpression": {
-                        "id": 3044,
+                        "id": 3513,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 3038,
-                        "src": "8614:1:1",
+                        "referencedDeclaration": 3507,
+                        "src": "8614:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -36989,25 +36989,25 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 3046,
+                    "id": 3515,
                     "nodeType": "ExpressionStatement",
-                    "src": "8614:3:1"
+                    "src": "8614:3:7"
                   },
                   "nodeType": "ForStatement",
-                  "src": "8580:411:1"
+                  "src": "8580:411:7"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
-                        "id": 3124,
+                        "id": 3593,
                         "name": "newTrackedTokens",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 3029,
-                        "src": "9015:16:1",
+                        "referencedDeclaration": 3498,
+                        "src": "9015:16:7",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                           "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                         }
                       }
@@ -37015,22 +37015,22 @@
                     "expression": {
                       "argumentTypes": [
                         {
-                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr",
+                          "typeIdentifier": "t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr",
                           "typeString": "struct TokenTracker.TrackedToken memory[] memory"
                         }
                       ],
-                      "id": 3123,
+                      "id": 3592,
                       "name": "_overrideTrack",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 3000,
-                      "src": "9000:14:1",
+                      "referencedDeclaration": 3469,
+                      "src": "9000:14:7",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_nonpayable$_t_array$_t_struct$_TrackedToken_$2231_memory_ptr_$dyn_memory_ptr_$returns$__$",
+                        "typeIdentifier": "t_function_internal_nonpayable$_t_array$_t_struct$_TrackedToken_$2700_memory_ptr_$dyn_memory_ptr_$returns$__$",
                         "typeString": "function (struct TokenTracker.TrackedToken memory[] memory)"
                       }
                     },
-                    "id": 3125,
+                    "id": 3594,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -37038,39 +37038,39 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "9000:32:1",
+                    "src": "9000:32:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 3126,
+                  "id": 3595,
                   "nodeType": "ExpressionStatement",
-                  "src": "9000:32:1"
+                  "src": "9000:32:7"
                 }
               ]
             },
-            "id": 3128,
+            "id": 3597,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_overrideTrackWithBytes",
-            "nameLocation": "8295:23:1",
+            "nameLocation": "8295:23:7",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 3003,
+              "id": 3472,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 3002,
+                  "id": 3471,
                   "mutability": "mutable",
                   "name": "data",
-                  "nameLocation": "8334:4:1",
+                  "nameLocation": "8334:4:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 3128,
-                  "src": "8319:19:1",
+                  "scope": 3597,
+                  "src": "8319:19:7",
                   "stateVariable": false,
                   "storageLocation": "calldata",
                   "typeDescriptions": {
@@ -37078,10 +37078,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 3001,
+                    "id": 3470,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "8319:5:1",
+                    "src": "8319:5:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -37090,40 +37090,40 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "8318:21:1"
+              "src": "8318:21:7"
             },
             "returnParameters": {
-              "id": 3004,
+              "id": 3473,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "8349:0:1"
+              "src": "8349:0:7"
             },
-            "scope": 3391,
-            "src": "8286:753:1",
+            "scope": 3860,
+            "src": "8286:753:7",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 3235,
+              "id": 3704,
               "nodeType": "Block",
-              "src": "9096:545:1",
+              "src": "9096:545:7",
               "statements": [
                 {
                   "assignments": [
-                    3134
+                    3603
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 3134,
+                      "id": 3603,
                       "mutability": "mutable",
                       "name": "numTokens",
-                      "nameLocation": "9113:9:1",
+                      "nameLocation": "9113:9:7",
                       "nodeType": "VariableDeclaration",
-                      "scope": 3235,
-                      "src": "9106:16:1",
+                      "scope": 3704,
+                      "src": "9106:16:7",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -37131,10 +37131,10 @@
                         "typeString": "uint32"
                       },
                       "typeName": {
-                        "id": 3133,
+                        "id": 3602,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "9106:6:1",
+                        "src": "9106:6:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -37143,7 +37143,7 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 3142,
+                  "id": 3611,
                   "initialValue": {
                     "arguments": [
                       {
@@ -37151,32 +37151,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 3140,
+                        "id": 3609,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 3137,
+                            "id": 3606,
                             "name": "data",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 3130,
-                            "src": "9132:4:1",
+                            "referencedDeclaration": 3599,
+                            "src": "9132:4:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes_calldata_ptr",
                               "typeString": "bytes calldata"
                             }
                           },
-                          "id": 3138,
+                          "id": 3607,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "9132:11:1",
+                          "src": "9132:11:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -37186,21 +37186,21 @@
                         "operator": "/",
                         "rightExpression": {
                           "hexValue": "3936",
-                          "id": 3139,
+                          "id": 3608,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "number",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "9146:2:1",
+                          "src": "9146:2:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_rational_96_by_1",
                             "typeString": "int_const 96"
                           },
                           "value": "96"
                         },
-                        "src": "9132:16:1",
+                        "src": "9132:16:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -37214,26 +37214,26 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 3136,
+                      "id": 3605,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "ElementaryTypeNameExpression",
-                      "src": "9125:6:1",
+                      "src": "9125:6:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_type$_t_uint32_$",
                         "typeString": "type(uint32)"
                       },
                       "typeName": {
-                        "id": 3135,
+                        "id": 3604,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "9125:6:1",
+                        "src": "9125:6:7",
                         "typeDescriptions": {}
                       }
                     },
-                    "id": 3141,
+                    "id": 3610,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -37241,7 +37241,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "9125:24:1",
+                    "src": "9125:24:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
@@ -37249,7 +37249,7 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "9106:43:1"
+                  "src": "9106:43:7"
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                   "expression": {
@@ -37259,7 +37259,7 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 3149,
+                        "id": 3618,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -37269,18 +37269,18 @@
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           },
-                          "id": 3146,
+                          "id": 3615,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 3144,
+                            "id": 3613,
                             "name": "numTokens",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 3134,
-                            "src": "9167:9:1",
+                            "referencedDeclaration": 3603,
+                            "src": "9167:9:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -37290,21 +37290,21 @@
                           "operator": "*",
                           "rightExpression": {
                             "hexValue": "3936",
-                            "id": 3145,
+                            "id": 3614,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "9179:2:1",
+                            "src": "9179:2:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_96_by_1",
                               "typeString": "int_const 96"
                             },
                             "value": "96"
                           },
-                          "src": "9167:14:1",
+                          "src": "9167:14:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -37314,31 +37314,31 @@
                         "operator": "==",
                         "rightExpression": {
                           "expression": {
-                            "id": 3147,
+                            "id": 3616,
                             "name": "data",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 3130,
-                            "src": "9185:4:1",
+                            "referencedDeclaration": 3599,
+                            "src": "9185:4:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes_calldata_ptr",
                               "typeString": "bytes calldata"
                             }
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                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "9185:11:1",
+                          "src": "9185:11:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
                         },
-                        "src": "9167:29:1",
+                        "src": "9167:29:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -37346,14 +37346,14 @@
                       },
                       {
                         "hexValue": "64617461206d7573742068617665206c656e677468206d756c7469706c6520746f203936",
-                        "id": 3150,
+                        "id": 3619,
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                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "9198:38:1",
+                        "src": "9198:38:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_7fb6a81bbdba15000418055bc5e058938e4fd0b50065d70de11ee03ca8f293e3",
                           "typeString": "literal_string \"data must have length multiple to 96\""
@@ -37372,7 +37372,7 @@
                           "typeString": "literal_string \"data must have length multiple to 96\""
                         }
                       ],
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+                      "id": 3612,
                       "name": "require",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
@@ -37380,13 +37380,13 @@
                         4294967278
                       ],
                       "referencedDeclaration": 4294967278,
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+                      "src": "9159:7:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (bool,string memory) pure"
                       }
                     },
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+                    "id": 3620,
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@@ -37394,64 +37394,64 @@
                     "lValueRequested": false,
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                     "nodeType": "FunctionCall",
-                    "src": "9159:78:1",
+                    "src": "9159:78:7",
                     "tryCall": false,
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                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
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+                          3634
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+                            "id": 3634,
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                             "name": "tokenType",
-                            "nameLocation": "9310:9:1",
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                             "nodeType": "VariableDeclaration",
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+                            "scope": 3702,
+                            "src": "9300:19:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
                             },
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+                              "id": 3633,
                               "nodeType": "UserDefinedTypeName",
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                                 "name": "TokenType",
                                 "nodeType": "IdentifierPath",
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                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             "visibility": "internal"
                           }
                         ],
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                         "initialValue": {
                           "arguments": [
                             {
@@ -37460,12 +37460,12 @@
                                   "arguments": [
                                     {
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+                                        "id": 3639,
                                         "name": "data",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
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-                                        "src": "9350:4:1",
+                                        "referencedDeclaration": 3599,
+                                        "src": "9350:4:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes_calldata_ptr",
                                           "typeString": "bytes calldata"
@@ -37476,7 +37476,7 @@
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
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+                                        "id": 3647,
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@@ -37486,18 +37486,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
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+                                            "src": "9364:1:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint32",
                                               "typeString": "uint32"
@@ -37507,21 +37507,21 @@
                                           "operator": "*",
                                           "rightExpression": {
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-                                            "src": "9368:2:1",
+                                            "src": "9368:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
-                                          "src": "9364:6:1",
+                                          "src": "9364:6:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -37531,50 +37531,50 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3332",
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                                           "nodeType": "Literal",
-                                          "src": "9373:2:1",
+                                          "src": "9373:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_32_by_1",
                                             "typeString": "int_const 32"
                                           },
                                           "value": "32"
                                         },
-                                        "src": "9364:11:1",
+                                        "src": "9364:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         }
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                                       "nodeType": "IndexRangeAccess",
-                                      "src": "9350:26:1",
+                                      "src": "9350:26:7",
                                       "startExpression": {
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                                           "typeString": "uint32"
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                                         "lValueRequested": false,
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-                                          "src": "9355:1:1",
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+                                          "src": "9355:1:7",
                                           "typeDescriptions": {
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                                             "typeString": "uint32"
@@ -37584,21 +37584,21 @@
                                         "operator": "*",
                                         "rightExpression": {
                                           "hexValue": "3936",
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                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "9359:2:1",
+                                          "src": "9359:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_96_by_1",
                                             "typeString": "int_const 96"
                                           },
                                           "value": "96"
                                         },
-                                        "src": "9355:6:1",
+                                        "src": "9355:6:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -37617,18 +37617,18 @@
                                         "typeString": "bytes calldata slice"
                                       }
                                     ],
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+                                    "id": 3638,
                                     "name": "_asByte32",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
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-                                    "src": "9340:9:1",
+                                    "referencedDeclaration": 3859,
+                                    "src": "9340:9:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                       "typeString": "function (bytes memory) pure returns (bytes32)"
                                     }
                                   },
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+                                  "id": 3649,
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@@ -37636,7 +37636,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "9340:37:1",
+                                  "src": "9340:37:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -37651,26 +37651,26 @@
                                     "typeString": "bytes32"
                                   }
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                                 "nodeType": "ElementaryTypeNameExpression",
-                                "src": "9332:7:1",
+                                "src": "9332:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_type$_t_uint256_$",
                                   "typeString": "type(uint256)"
                                 },
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+                                  "id": 3636,
                                   "name": "uint256",
                                   "nodeType": "ElementaryTypeName",
-                                  "src": "9332:7:1",
+                                  "src": "9332:7:7",
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@@ -37678,7 +37678,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "9332:46:1",
+                              "src": "9332:46:7",
                               "tryCall": false,
                               "typeDescriptions": {
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@@ -37693,18 +37693,18 @@
                                 "typeString": "uint256"
                               }
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+                            "id": 3635,
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-                            "src": "9322:9:1",
+                            "referencedDeclaration": 2607,
+                            "src": "9322:9:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2138_$",
+                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                               "typeString": "type(enum TokenTracker.TokenType)"
                             }
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+                          "id": 3651,
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@@ -37712,30 +37712,30 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "9322:57:1",
+                          "src": "9322:57:7",
                           "tryCall": false,
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "9300:79:1"
+                        "src": "9300:79:7"
                       },
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+                          3654
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                           {
                             "constant": false,
-                            "id": 3185,
+                            "id": 3654,
                             "mutability": "mutable",
                             "name": "contractAddress",
-                            "nameLocation": "9401:15:1",
+                            "nameLocation": "9401:15:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 3233,
-                            "src": "9393:23:1",
+                            "scope": 3702,
+                            "src": "9393:23:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -37743,10 +37743,10 @@
                               "typeString": "address"
                             },
                             "typeName": {
-                              "id": 3184,
+                              "id": 3653,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "9393:7:1",
+                              "src": "9393:7:7",
                               "stateMutability": "nonpayable",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
@@ -37756,7 +37756,7 @@
                             "visibility": "internal"
                           }
                         ],
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+                        "id": 3675,
                         "initialValue": {
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                             {
@@ -37765,12 +37765,12 @@
                                   "arguments": [
                                     {
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+                                        "id": 3660,
                                         "name": "data",
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                                         "overloadedDeclarations": [],
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+                                        "referencedDeclaration": 3599,
+                                        "src": "9445:4:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes_calldata_ptr",
                                           "typeString": "bytes calldata"
@@ -37781,7 +37781,7 @@
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
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+                                        "id": 3670,
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@@ -37791,18 +37791,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
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+                                            "src": "9464:1:7",
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                                               "typeString": "uint32"
@@ -37812,21 +37812,21 @@
                                           "operator": "*",
                                           "rightExpression": {
                                             "hexValue": "3936",
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                                             "nodeType": "Literal",
-                                            "src": "9468:2:1",
+                                            "src": "9468:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
-                                          "src": "9464:6:1",
+                                          "src": "9464:6:7",
                                           "typeDescriptions": {
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                                             "typeString": "uint32"
@@ -37836,39 +37836,39 @@
                                         "operator": "+",
                                         "rightExpression": {
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                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "9473:2:1",
+                                          "src": "9473:2:7",
                                           "typeDescriptions": {
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                                             "typeString": "int_const 52"
                                           },
                                           "value": "52"
                                         },
-                                        "src": "9464:11:1",
+                                        "src": "9464:11:7",
                                         "typeDescriptions": {
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                                           "typeString": "uint32"
                                         }
                                       },
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                                       "nodeType": "IndexRangeAccess",
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+                                      "src": "9445:31:7",
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                                           "typeString": "uint32"
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@@ -37878,18 +37878,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
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+                                            "src": "9450:1:7",
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                                               "typeString": "uint32"
@@ -37899,21 +37899,21 @@
                                           "operator": "*",
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                                             "lValueRequested": false,
                                             "nodeType": "Literal",
-                                            "src": "9454:2:1",
+                                            "src": "9454:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
-                                          "src": "9450:6:1",
+                                          "src": "9450:6:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -37923,21 +37923,21 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3332",
-                                          "id": 3195,
+                                          "id": 3664,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "9459:2:1",
+                                          "src": "9459:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_32_by_1",
                                             "typeString": "int_const 32"
                                           },
                                           "value": "32"
                                         },
-                                        "src": "9450:11:1",
+                                        "src": "9450:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -37956,18 +37956,18 @@
                                         "typeString": "bytes calldata slice"
                                       }
                                     ],
-                                    "id": 3190,
+                                    "id": 3659,
                                     "name": "_asByte32",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3390,
-                                    "src": "9435:9:1",
+                                    "referencedDeclaration": 3859,
+                                    "src": "9435:9:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                       "typeString": "function (bytes memory) pure returns (bytes32)"
                                     }
                                   },
-                                  "id": 3203,
+                                  "id": 3672,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -37975,7 +37975,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "9435:42:1",
+                                  "src": "9435:42:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -37990,26 +37990,26 @@
                                     "typeString": "bytes32"
                                   }
                                 ],
-                                "id": 3189,
+                                "id": 3658,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
                                 "lValueRequested": false,
                                 "nodeType": "ElementaryTypeNameExpression",
-                                "src": "9427:7:1",
+                                "src": "9427:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_type$_t_bytes20_$",
                                   "typeString": "type(bytes20)"
                                 },
                                 "typeName": {
-                                  "id": 3188,
+                                  "id": 3657,
                                   "name": "bytes20",
                                   "nodeType": "ElementaryTypeName",
-                                  "src": "9427:7:1",
+                                  "src": "9427:7:7",
                                   "typeDescriptions": {}
                                 }
                               },
-                              "id": 3204,
+                              "id": 3673,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -38017,7 +38017,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "9427:51:1",
+                              "src": "9427:51:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes20",
@@ -38032,26 +38032,26 @@
                                 "typeString": "bytes20"
                               }
                             ],
-                            "id": 3187,
+                            "id": 3656,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "9419:7:1",
+                            "src": "9419:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_address_$",
                               "typeString": "type(address)"
                             },
                             "typeName": {
-                              "id": 3186,
+                              "id": 3655,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "9419:7:1",
+                              "src": "9419:7:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 3205,
+                          "id": 3674,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -38059,7 +38059,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "9419:60:1",
+                          "src": "9419:60:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
@@ -38067,22 +38067,22 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "9393:86:1"
+                        "src": "9393:86:7"
                       },
                       {
                         "assignments": [
-                          3208
+                          3677
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 3208,
+                            "id": 3677,
                             "mutability": "mutable",
                             "name": "tokenId",
-                            "nameLocation": "9501:7:1",
+                            "nameLocation": "9501:7:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 3233,
-                            "src": "9493:15:1",
+                            "scope": 3702,
+                            "src": "9493:15:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -38090,10 +38090,10 @@
                               "typeString": "uint256"
                             },
                             "typeName": {
-                              "id": 3207,
+                              "id": 3676,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "9493:7:1",
+                              "src": "9493:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -38102,19 +38102,19 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 3226,
+                        "id": 3695,
                         "initialValue": {
                           "arguments": [
                             {
                               "arguments": [
                                 {
                                   "baseExpression": {
-                                    "id": 3212,
+                                    "id": 3681,
                                     "name": "data",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3130,
-                                    "src": "9529:4:1",
+                                    "referencedDeclaration": 3599,
+                                    "src": "9529:4:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -38125,7 +38125,7 @@
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     },
-                                    "id": 3222,
+                                    "id": 3691,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -38135,18 +38135,18 @@
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
                                       },
-                                      "id": 3220,
+                                      "id": 3689,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "leftExpression": {
-                                        "id": 3218,
+                                        "id": 3687,
                                         "name": "i",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3154,
-                                        "src": "9548:1:1",
+                                        "referencedDeclaration": 3623,
+                                        "src": "9548:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -38156,21 +38156,21 @@
                                       "operator": "*",
                                       "rightExpression": {
                                         "hexValue": "3936",
-                                        "id": 3219,
+                                        "id": 3688,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "kind": "number",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "9552:2:1",
+                                        "src": "9552:2:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_rational_96_by_1",
                                           "typeString": "int_const 96"
                                         },
                                         "value": "96"
                                       },
-                                      "src": "9548:6:1",
+                                      "src": "9548:6:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
@@ -38180,39 +38180,39 @@
                                     "operator": "+",
                                     "rightExpression": {
                                       "hexValue": "3936",
-                                      "id": 3221,
+                                      "id": 3690,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "kind": "number",
                                       "lValueRequested": false,
                                       "nodeType": "Literal",
-                                      "src": "9557:2:1",
+                                      "src": "9557:2:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_rational_96_by_1",
                                         "typeString": "int_const 96"
                                       },
                                       "value": "96"
                                     },
-                                    "src": "9548:11:1",
+                                    "src": "9548:11:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     }
                                   },
-                                  "id": 3223,
+                                  "id": 3692,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "nodeType": "IndexRangeAccess",
-                                  "src": "9529:31:1",
+                                  "src": "9529:31:7",
                                   "startExpression": {
                                     "commonType": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     },
-                                    "id": 3217,
+                                    "id": 3686,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -38222,18 +38222,18 @@
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
                                       },
-                                      "id": 3215,
+                                      "id": 3684,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "leftExpression": {
-                                        "id": 3213,
+                                        "id": 3682,
                                         "name": "i",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3154,
-                                        "src": "9534:1:1",
+                                        "referencedDeclaration": 3623,
+                                        "src": "9534:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -38243,21 +38243,21 @@
                                       "operator": "*",
                                       "rightExpression": {
                                         "hexValue": "3936",
-                                        "id": 3214,
+                                        "id": 3683,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "kind": "number",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "9538:2:1",
+                                        "src": "9538:2:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_rational_96_by_1",
                                           "typeString": "int_const 96"
                                         },
                                         "value": "96"
                                       },
-                                      "src": "9534:6:1",
+                                      "src": "9534:6:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
@@ -38267,21 +38267,21 @@
                                     "operator": "+",
                                     "rightExpression": {
                                       "hexValue": "3634",
-                                      "id": 3216,
+                                      "id": 3685,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "kind": "number",
                                       "lValueRequested": false,
                                       "nodeType": "Literal",
-                                      "src": "9543:2:1",
+                                      "src": "9543:2:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_rational_64_by_1",
                                         "typeString": "int_const 64"
                                       },
                                       "value": "64"
                                     },
-                                    "src": "9534:11:1",
+                                    "src": "9534:11:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
@@ -38300,18 +38300,18 @@
                                     "typeString": "bytes calldata slice"
                                   }
                                 ],
-                                "id": 3211,
+                                "id": 3680,
                                 "name": "_asByte32",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3390,
-                                "src": "9519:9:1",
+                                "referencedDeclaration": 3859,
+                                "src": "9519:9:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                   "typeString": "function (bytes memory) pure returns (bytes32)"
                                 }
                               },
-                              "id": 3224,
+                              "id": 3693,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -38319,7 +38319,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "9519:42:1",
+                              "src": "9519:42:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
@@ -38334,26 +38334,26 @@
                                 "typeString": "bytes32"
                               }
                             ],
-                            "id": 3210,
+                            "id": 3679,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "9511:7:1",
+                            "src": "9511:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_uint256_$",
                               "typeString": "type(uint256)"
                             },
                             "typeName": {
-                              "id": 3209,
+                              "id": 3678,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "9511:7:1",
+                              "src": "9511:7:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 3225,
+                          "id": 3694,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -38361,7 +38361,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "9511:51:1",
+                          "src": "9511:51:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
@@ -38369,42 +38369,42 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "9493:69:1"
+                        "src": "9493:69:7"
                       },
                       {
                         "expression": {
                           "arguments": [
                             {
-                              "id": 3228,
+                              "id": 3697,
                               "name": "tokenType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3165,
-                              "src": "9588:9:1",
+                              "referencedDeclaration": 3634,
+                              "src": "9588:9:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             {
-                              "id": 3229,
+                              "id": 3698,
                               "name": "contractAddress",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3185,
-                              "src": "9599:15:1",
+                              "referencedDeclaration": 3654,
+                              "src": "9599:15:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
                                 "typeString": "address"
                               }
                             },
                             {
-                              "id": 3230,
+                              "id": 3699,
                               "name": "tokenId",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3208,
-                              "src": "9616:7:1",
+                              "referencedDeclaration": 3677,
+                              "src": "9616:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -38414,7 +38414,7 @@
                           "expression": {
                             "argumentTypes": [
                               {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               },
                               {
@@ -38426,18 +38426,18 @@
                                 "typeString": "uint256"
                               }
                             ],
-                            "id": 3227,
+                            "id": 3696,
                             "name": "_trackToken",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2620,
-                            "src": "9576:11:1",
+                            "referencedDeclaration": 3089,
+                            "src": "9576:11:7",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2138_$_t_address_$_t_uint256_$returns$__$",
+                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                               "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                             }
                           },
-                          "id": 3231,
+                          "id": 3700,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -38445,16 +38445,16 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "9576:48:1",
+                          "src": "9576:48:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 3232,
+                        "id": 3701,
                         "nodeType": "ExpressionStatement",
-                        "src": "9576:48:1"
+                        "src": "9576:48:7"
                       }
                     ]
                   },
@@ -38463,18 +38463,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
-                    "id": 3159,
+                    "id": 3628,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 3157,
+                      "id": 3626,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 3154,
-                      "src": "9266:1:1",
+                      "referencedDeclaration": 3623,
+                      "src": "9266:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -38483,38 +38483,38 @@
                     "nodeType": "BinaryOperation",
                     "operator": "<",
                     "rightExpression": {
-                      "id": 3158,
+                      "id": 3627,
                       "name": "numTokens",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 3134,
-                      "src": "9270:9:1",
+                      "referencedDeclaration": 3603,
+                      "src": "9270:9:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "9266:13:1",
+                    "src": "9266:13:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 3234,
+                  "id": 3703,
                   "initializationExpression": {
                     "assignments": [
-                      3154
+                      3623
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 3154,
+                        "id": 3623,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "9259:1:1",
+                        "nameLocation": "9259:1:7",
                         "nodeType": "VariableDeclaration",
-                        "scope": 3234,
-                        "src": "9252:8:1",
+                        "scope": 3703,
+                        "src": "9252:8:7",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -38522,10 +38522,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 3153,
+                          "id": 3622,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "9252:6:1",
+                          "src": "9252:6:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -38534,17 +38534,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 3156,
+                    "id": 3625,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 3155,
+                      "id": 3624,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "9263:1:1",
+                      "src": "9263:1:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -38552,11 +38552,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "9252:12:1"
+                    "src": "9252:12:7"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 3161,
+                      "id": 3630,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -38564,14 +38564,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "9281:3:1",
+                      "src": "9281:3:7",
                       "subExpression": {
-                        "id": 3160,
+                        "id": 3629,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 3154,
-                        "src": "9281:1:1",
+                        "referencedDeclaration": 3623,
+                        "src": "9281:1:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -38582,35 +38582,35 @@
                         "typeString": "uint32"
                       }
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@@ -38618,10 +38618,10 @@
                     "typeString": "bytes"
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@@ -38630,40 +38630,40 @@
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@@ -38671,10 +38671,10 @@
                         "typeString": "uint32"
                       },
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+                        "id": 3710,
                         "name": "uint32",
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@@ -38683,7 +38683,7 @@
                       "visibility": "internal"
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@@ -38691,32 +38691,32 @@
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                           "typeString": "uint256"
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                               "typeString": "bytes calldata"
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                           "memberName": "length",
                           "nodeType": "MemberAccess",
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+                          "src": "9736:11:7",
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                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -38726,21 +38726,21 @@
                         "operator": "/",
                         "rightExpression": {
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                           "nodeType": "Literal",
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+                          "src": "9750:2:7",
                           "typeDescriptions": {
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                             "typeString": "int_const 96"
                           },
                           "value": "96"
                         },
-                        "src": "9736:16:1",
+                        "src": "9736:16:7",
                         "typeDescriptions": {
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                           "typeString": "uint256"
@@ -38754,26 +38754,26 @@
                           "typeString": "uint256"
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                         "typeString": "type(uint32)"
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                         "name": "uint32",
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@@ -38781,7 +38781,7 @@
                     "lValueRequested": false,
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@@ -38789,7 +38789,7 @@
                     }
                   },
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@@ -38799,7 +38799,7 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
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@@ -38809,18 +38809,18 @@
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           },
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                             "overloadedDeclarations": [],
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                               "typeString": "uint32"
@@ -38830,21 +38830,21 @@
                           "operator": "*",
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                               "typeString": "int_const 96"
                             },
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                             "typeString": "uint32"
@@ -38854,31 +38854,31 @@
                         "operator": "==",
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                               "typeString": "bytes calldata"
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                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "9789:11:1",
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                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           }
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-                        "src": "9771:29:1",
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@@ -38886,14 +38886,14 @@
                       },
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                         "nodeType": "Literal",
-                        "src": "9802:38:1",
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@@ -38912,7 +38912,7 @@
                           "typeString": "literal_string \"data must have length multiple to 96\""
                         }
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@@ -38920,13 +38920,13 @@
                         4294967278
                       ],
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                         "typeString": "function (bool,string memory) pure"
                       }
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@@ -38934,64 +38934,64 @@
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                       "typeString": "tuple()"
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                             "storageLocation": "default",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_enum$_TokenType_$2138",
+                              "typeIdentifier": "t_enum$_TokenType_$2607",
                               "typeString": "enum TokenTracker.TokenType"
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                               "typeDescriptions": {
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+                                "typeIdentifier": "t_enum$_TokenType_$2607",
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@@ -39000,12 +39000,12 @@
                                   "arguments": [
                                     {
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+                                        "id": 3747,
                                         "name": "data",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
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+                                        "referencedDeclaration": 3707,
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                                         "typeDescriptions": {
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                                           "typeString": "bytes calldata"
@@ -39016,7 +39016,7 @@
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
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@@ -39026,18 +39026,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
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                                               "typeString": "uint32"
@@ -39047,21 +39047,21 @@
                                           "operator": "*",
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                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
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+                                          "src": "9968:6:7",
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                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -39071,50 +39071,50 @@
                                         "operator": "+",
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                                           "hexValue": "3332",
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                                             "typeString": "int_const 32"
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                                           "value": "32"
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                                         "typeDescriptions": {
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                                           "typeString": "uint32"
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                                       "nodeType": "IndexRangeAccess",
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                                           "typeString": "uint32"
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@@ -39124,21 +39124,21 @@
                                         "operator": "*",
                                         "rightExpression": {
                                           "hexValue": "3936",
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                                           "nodeType": "Literal",
-                                          "src": "9963:2:1",
+                                          "src": "9963:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_96_by_1",
                                             "typeString": "int_const 96"
                                           },
                                           "value": "96"
                                         },
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+                                        "src": "9959:6:7",
                                         "typeDescriptions": {
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                                           "typeString": "uint32"
@@ -39157,18 +39157,18 @@
                                         "typeString": "bytes calldata slice"
                                       }
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                                     "name": "_asByte32",
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                                     "overloadedDeclarations": [],
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+                                    "referencedDeclaration": 3859,
+                                    "src": "9944:9:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                       "typeString": "function (bytes memory) pure returns (bytes32)"
                                     }
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@@ -39176,7 +39176,7 @@
                                   "lValueRequested": false,
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                                   "nodeType": "FunctionCall",
-                                  "src": "9944:37:1",
+                                  "src": "9944:37:7",
                                   "tryCall": false,
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@@ -39191,26 +39191,26 @@
                                     "typeString": "bytes32"
                                   }
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                                 "nodeType": "ElementaryTypeNameExpression",
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+                                "src": "9936:7:7",
                                 "typeDescriptions": {
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                                   "typeString": "type(uint256)"
                                 },
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+                                  "id": 3744,
                                   "name": "uint256",
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+                                  "src": "9936:7:7",
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@@ -39218,7 +39218,7 @@
                               "lValueRequested": false,
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+                              "src": "9936:46:7",
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@@ -39233,18 +39233,18 @@
                                 "typeString": "uint256"
                               }
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+                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
                               "typeString": "type(enum TokenTracker.TokenType)"
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@@ -39252,30 +39252,30 @@
                           "lValueRequested": false,
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                           "nodeType": "FunctionCall",
-                          "src": "9926:57:1",
+                          "src": "9926:57:7",
                           "tryCall": false,
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2138",
+                            "typeIdentifier": "t_enum$_TokenType_$2607",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "9904:79:1"
+                        "src": "9904:79:7"
                       },
                       {
                         "assignments": [
-                          3293
+                          3762
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 3293,
+                            "id": 3762,
                             "mutability": "mutable",
                             "name": "contractAddress",
-                            "nameLocation": "10005:15:1",
+                            "nameLocation": "10005:15:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 3341,
-                            "src": "9997:23:1",
+                            "scope": 3810,
+                            "src": "9997:23:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -39283,10 +39283,10 @@
                               "typeString": "address"
                             },
                             "typeName": {
-                              "id": 3292,
+                              "id": 3761,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "9997:7:1",
+                              "src": "9997:7:7",
                               "stateMutability": "nonpayable",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_address",
@@ -39296,7 +39296,7 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 3314,
+                        "id": 3783,
                         "initialValue": {
                           "arguments": [
                             {
@@ -39305,12 +39305,12 @@
                                   "arguments": [
                                     {
                                       "baseExpression": {
-                                        "id": 3299,
+                                        "id": 3768,
                                         "name": "data",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3238,
-                                        "src": "10049:4:1",
+                                        "referencedDeclaration": 3707,
+                                        "src": "10049:4:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_bytes_calldata_ptr",
                                           "typeString": "bytes calldata"
@@ -39321,7 +39321,7 @@
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
-                                        "id": 3309,
+                                        "id": 3778,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -39331,18 +39331,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
-                                          "id": 3307,
+                                          "id": 3776,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "leftExpression": {
-                                            "id": 3305,
+                                            "id": 3774,
                                             "name": "i",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 3262,
-                                            "src": "10068:1:1",
+                                            "referencedDeclaration": 3731,
+                                            "src": "10068:1:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint32",
                                               "typeString": "uint32"
@@ -39352,21 +39352,21 @@
                                           "operator": "*",
                                           "rightExpression": {
                                             "hexValue": "3936",
-                                            "id": 3306,
+                                            "id": 3775,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": true,
                                             "kind": "number",
                                             "lValueRequested": false,
                                             "nodeType": "Literal",
-                                            "src": "10072:2:1",
+                                            "src": "10072:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
-                                          "src": "10068:6:1",
+                                          "src": "10068:6:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -39376,39 +39376,39 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3532",
-                                          "id": 3308,
+                                          "id": 3777,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "10077:2:1",
+                                          "src": "10077:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_52_by_1",
                                             "typeString": "int_const 52"
                                           },
                                           "value": "52"
                                         },
-                                        "src": "10068:11:1",
+                                        "src": "10068:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         }
                                       },
-                                      "id": 3310,
+                                      "id": 3779,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "nodeType": "IndexRangeAccess",
-                                      "src": "10049:31:1",
+                                      "src": "10049:31:7",
                                       "startExpression": {
                                         "commonType": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
                                         },
-                                        "id": 3304,
+                                        "id": 3773,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": false,
@@ -39418,18 +39418,18 @@
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
                                           },
-                                          "id": 3302,
+                                          "id": 3771,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": false,
                                           "lValueRequested": false,
                                           "leftExpression": {
-                                            "id": 3300,
+                                            "id": 3769,
                                             "name": "i",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 3262,
-                                            "src": "10054:1:1",
+                                            "referencedDeclaration": 3731,
+                                            "src": "10054:1:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_uint32",
                                               "typeString": "uint32"
@@ -39439,21 +39439,21 @@
                                           "operator": "*",
                                           "rightExpression": {
                                             "hexValue": "3936",
-                                            "id": 3301,
+                                            "id": 3770,
                                             "isConstant": false,
                                             "isLValue": false,
                                             "isPure": true,
                                             "kind": "number",
                                             "lValueRequested": false,
                                             "nodeType": "Literal",
-                                            "src": "10058:2:1",
+                                            "src": "10058:2:7",
                                             "typeDescriptions": {
                                               "typeIdentifier": "t_rational_96_by_1",
                                               "typeString": "int_const 96"
                                             },
                                             "value": "96"
                                           },
-                                          "src": "10054:6:1",
+                                          "src": "10054:6:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_uint32",
                                             "typeString": "uint32"
@@ -39463,21 +39463,21 @@
                                         "operator": "+",
                                         "rightExpression": {
                                           "hexValue": "3332",
-                                          "id": 3303,
+                                          "id": 3772,
                                           "isConstant": false,
                                           "isLValue": false,
                                           "isPure": true,
                                           "kind": "number",
                                           "lValueRequested": false,
                                           "nodeType": "Literal",
-                                          "src": "10063:2:1",
+                                          "src": "10063:2:7",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_rational_32_by_1",
                                             "typeString": "int_const 32"
                                           },
                                           "value": "32"
                                         },
-                                        "src": "10054:11:1",
+                                        "src": "10054:11:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -39496,18 +39496,18 @@
                                         "typeString": "bytes calldata slice"
                                       }
                                     ],
-                                    "id": 3298,
+                                    "id": 3767,
                                     "name": "_asByte32",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3390,
-                                    "src": "10039:9:1",
+                                    "referencedDeclaration": 3859,
+                                    "src": "10039:9:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                       "typeString": "function (bytes memory) pure returns (bytes32)"
                                     }
                                   },
-                                  "id": 3311,
+                                  "id": 3780,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -39515,7 +39515,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "10039:42:1",
+                                  "src": "10039:42:7",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
@@ -39530,26 +39530,26 @@
                                     "typeString": "bytes32"
                                   }
                                 ],
-                                "id": 3297,
+                                "id": 3766,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
                                 "lValueRequested": false,
                                 "nodeType": "ElementaryTypeNameExpression",
-                                "src": "10031:7:1",
+                                "src": "10031:7:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_type$_t_bytes20_$",
                                   "typeString": "type(bytes20)"
                                 },
                                 "typeName": {
-                                  "id": 3296,
+                                  "id": 3765,
                                   "name": "bytes20",
                                   "nodeType": "ElementaryTypeName",
-                                  "src": "10031:7:1",
+                                  "src": "10031:7:7",
                                   "typeDescriptions": {}
                                 }
                               },
-                              "id": 3312,
+                              "id": 3781,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -39557,7 +39557,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "10031:51:1",
+                              "src": "10031:51:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes20",
@@ -39572,26 +39572,26 @@
                                 "typeString": "bytes20"
                               }
                             ],
-                            "id": 3295,
+                            "id": 3764,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "10023:7:1",
+                            "src": "10023:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_address_$",
                               "typeString": "type(address)"
                             },
                             "typeName": {
-                              "id": 3294,
+                              "id": 3763,
                               "name": "address",
                               "nodeType": "ElementaryTypeName",
-                              "src": "10023:7:1",
+                              "src": "10023:7:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 3313,
+                          "id": 3782,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -39599,7 +39599,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "10023:60:1",
+                          "src": "10023:60:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_address",
@@ -39607,22 +39607,22 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "9997:86:1"
+                        "src": "9997:86:7"
                       },
                       {
                         "assignments": [
-                          3316
+                          3785
                         ],
                         "declarations": [
                           {
                             "constant": false,
-                            "id": 3316,
+                            "id": 3785,
                             "mutability": "mutable",
                             "name": "tokenId",
-                            "nameLocation": "10105:7:1",
+                            "nameLocation": "10105:7:7",
                             "nodeType": "VariableDeclaration",
-                            "scope": 3341,
-                            "src": "10097:15:1",
+                            "scope": 3810,
+                            "src": "10097:15:7",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -39630,10 +39630,10 @@
                               "typeString": "uint256"
                             },
                             "typeName": {
-                              "id": 3315,
+                              "id": 3784,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "10097:7:1",
+                              "src": "10097:7:7",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -39642,19 +39642,19 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 3334,
+                        "id": 3803,
                         "initialValue": {
                           "arguments": [
                             {
                               "arguments": [
                                 {
                                   "baseExpression": {
-                                    "id": 3320,
+                                    "id": 3789,
                                     "name": "data",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3238,
-                                    "src": "10133:4:1",
+                                    "referencedDeclaration": 3707,
+                                    "src": "10133:4:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -39665,7 +39665,7 @@
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     },
-                                    "id": 3330,
+                                    "id": 3799,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -39675,18 +39675,18 @@
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
                                       },
-                                      "id": 3328,
+                                      "id": 3797,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "leftExpression": {
-                                        "id": 3326,
+                                        "id": 3795,
                                         "name": "i",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3262,
-                                        "src": "10152:1:1",
+                                        "referencedDeclaration": 3731,
+                                        "src": "10152:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -39696,21 +39696,21 @@
                                       "operator": "*",
                                       "rightExpression": {
                                         "hexValue": "3936",
-                                        "id": 3327,
+                                        "id": 3796,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "kind": "number",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "10156:2:1",
+                                        "src": "10156:2:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_rational_96_by_1",
                                           "typeString": "int_const 96"
                                         },
                                         "value": "96"
                                       },
-                                      "src": "10152:6:1",
+                                      "src": "10152:6:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
@@ -39720,39 +39720,39 @@
                                     "operator": "+",
                                     "rightExpression": {
                                       "hexValue": "3936",
-                                      "id": 3329,
+                                      "id": 3798,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "kind": "number",
                                       "lValueRequested": false,
                                       "nodeType": "Literal",
-                                      "src": "10161:2:1",
+                                      "src": "10161:2:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_rational_96_by_1",
                                         "typeString": "int_const 96"
                                       },
                                       "value": "96"
                                     },
-                                    "src": "10152:11:1",
+                                    "src": "10152:11:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     }
                                   },
-                                  "id": 3331,
+                                  "id": 3800,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "nodeType": "IndexRangeAccess",
-                                  "src": "10133:31:1",
+                                  "src": "10133:31:7",
                                   "startExpression": {
                                     "commonType": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     },
-                                    "id": 3325,
+                                    "id": 3794,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -39762,18 +39762,18 @@
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
                                       },
-                                      "id": 3323,
+                                      "id": 3792,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "leftExpression": {
-                                        "id": 3321,
+                                        "id": 3790,
                                         "name": "i",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 3262,
-                                        "src": "10138:1:1",
+                                        "referencedDeclaration": 3731,
+                                        "src": "10138:1:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint32",
                                           "typeString": "uint32"
@@ -39783,21 +39783,21 @@
                                       "operator": "*",
                                       "rightExpression": {
                                         "hexValue": "3936",
-                                        "id": 3322,
+                                        "id": 3791,
                                         "isConstant": false,
                                         "isLValue": false,
                                         "isPure": true,
                                         "kind": "number",
                                         "lValueRequested": false,
                                         "nodeType": "Literal",
-                                        "src": "10142:2:1",
+                                        "src": "10142:2:7",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_rational_96_by_1",
                                           "typeString": "int_const 96"
                                         },
                                         "value": "96"
                                       },
-                                      "src": "10138:6:1",
+                                      "src": "10138:6:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
@@ -39807,21 +39807,21 @@
                                     "operator": "+",
                                     "rightExpression": {
                                       "hexValue": "3634",
-                                      "id": 3324,
+                                      "id": 3793,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": true,
                                       "kind": "number",
                                       "lValueRequested": false,
                                       "nodeType": "Literal",
-                                      "src": "10147:2:1",
+                                      "src": "10147:2:7",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_rational_64_by_1",
                                         "typeString": "int_const 64"
                                       },
                                       "value": "64"
                                     },
-                                    "src": "10138:11:1",
+                                    "src": "10138:11:7",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
@@ -39840,18 +39840,18 @@
                                     "typeString": "bytes calldata slice"
                                   }
                                 ],
-                                "id": 3319,
+                                "id": 3788,
                                 "name": "_asByte32",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 3390,
-                                "src": "10123:9:1",
+                                "referencedDeclaration": 3859,
+                                "src": "10123:9:7",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                                   "typeString": "function (bytes memory) pure returns (bytes32)"
                                 }
                               },
-                              "id": 3332,
+                              "id": 3801,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -39859,7 +39859,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "10123:42:1",
+                              "src": "10123:42:7",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
@@ -39874,26 +39874,26 @@
                                 "typeString": "bytes32"
                               }
                             ],
-                            "id": 3318,
+                            "id": 3787,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "10115:7:1",
+                            "src": "10115:7:7",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_uint256_$",
                               "typeString": "type(uint256)"
                             },
                             "typeName": {
-                              "id": 3317,
+                              "id": 3786,
                               "name": "uint256",
                               "nodeType": "ElementaryTypeName",
-                              "src": "10115:7:1",
+                              "src": "10115:7:7",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 3333,
+                          "id": 3802,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -39901,7 +39901,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "10115:51:1",
+                          "src": "10115:51:7",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
@@ -39909,42 +39909,42 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "10097:69:1"
+                        "src": "10097:69:7"
                       },
                       {
                         "expression": {
                           "arguments": [
                             {
-                              "id": 3336,
+                              "id": 3805,
                               "name": "tokenType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3273,
-                              "src": "10194:9:1",
+                              "referencedDeclaration": 3742,
+                              "src": "10194:9:7",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               }
                             },
                             {
-                              "id": 3337,
+                              "id": 3806,
                               "name": "contractAddress",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3293,
-                              "src": "10205:15:1",
+                              "referencedDeclaration": 3762,
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                               "typeDescriptions": {
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                                 "typeString": "address"
                               }
                             },
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                               "name": "tokenId",
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                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -39954,7 +39954,7 @@
                           "expression": {
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                               {
-                                "typeIdentifier": "t_enum$_TokenType_$2138",
+                                "typeIdentifier": "t_enum$_TokenType_$2607",
                                 "typeString": "enum TokenTracker.TokenType"
                               },
                               {
@@ -39966,18 +39966,18 @@
                                 "typeString": "uint256"
                               }
                             ],
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+                            "id": 3804,
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                             "typeDescriptions": {
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+                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
                               "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
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@@ -39985,16 +39985,16 @@
                           "lValueRequested": false,
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                           "nodeType": "FunctionCall",
-                          "src": "10180:50:1",
+                          "src": "10180:50:7",
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                             "typeString": "tuple()"
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@@ -40003,18 +40003,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
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                         "typeString": "uint32"
@@ -40023,38 +40023,38 @@
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                         "typeString": "uint32"
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@@ -40062,10 +40062,10 @@
                           "typeString": "uint32"
                         },
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+                          "id": 3730,
                           "name": "uint32",
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@@ -40074,17 +40074,17 @@
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@@ -40092,11 +40092,11 @@
                       "value": "0"
                     },
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@@ -40104,14 +40104,14 @@
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                       "operator": "++",
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@@ -40122,35 +40122,35 @@
                         "typeString": "uint32"
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@@ -40158,10 +40158,10 @@
                     "typeString": "bytes"
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@@ -40170,25 +40170,25 @@
                   "visibility": "internal"
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@@ -40196,32 +40196,32 @@
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                           "typeString": "bytes memory"
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@@ -40231,47 +40231,47 @@
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                         "typeString": "int_const 0"
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@@ -40286,26 +40286,26 @@
                                 "typeString": "int_const 0"
                               }
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                             "nodeType": "ElementaryTypeNameExpression",
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                               "typeString": "type(bytes32)"
                             },
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                               "name": "bytes32",
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@@ -40313,17 +40313,17 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "10369:12:1",
+                          "src": "10369:12:7",
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                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
                           }
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                         "nodeType": "Return",
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@@ -40336,32 +40336,32 @@
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                           "typeString": "uint256"
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                               "typeString": "bytes memory"
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@@ -40371,21 +40371,21 @@
                         "operator": "<=",
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                           "typeDescriptions": {
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                             "typeString": "int_const 32"
                           },
                           "value": "32"
                         },
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@@ -40393,14 +40393,14 @@
                       },
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                         "nodeType": "Literal",
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                         "typeDescriptions": {
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@@ -40419,7 +40419,7 @@
                           "typeString": "literal_string \"input bytes too long\""
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@@ -40427,13 +40427,13 @@
                         4294967278
                       ],
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@@ -40441,31 +40441,31 @@
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@@ -40473,10 +40473,10 @@
                         "typeString": "bytes32"
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+                        "id": 3839,
                         "name": "bytes32",
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@@ -40485,24 +40485,24 @@
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@@ -40510,10 +40510,10 @@
                         "typeString": "uint8"
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@@ -40522,7 +40522,7 @@
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@@ -40530,7 +40530,7 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
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@@ -40542,21 +40542,21 @@
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
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@@ -40567,45 +40567,45 @@
                               "operator": "-",
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                                   "typeString": "uint256"
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+                          "src": "10495:15:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -40615,21 +40615,21 @@
                         "operator": "*",
                         "rightExpression": {
                           "hexValue": "38",
-                          "id": 3382,
+                          "id": 3851,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "number",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "10513:1:1",
+                          "src": "10513:1:7",
                           "typeDescriptions": {
                             "typeIdentifier": "t_rational_8_by_1",
                             "typeString": "int_const 8"
                           },
                           "value": "8"
                         },
-                        "src": "10495:19:1",
+                        "src": "10495:19:7",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -40643,26 +40643,26 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 3376,
+                      "id": 3845,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "ElementaryTypeNameExpression",
-                      "src": "10489:5:1",
+                      "src": "10489:5:7",
                       "typeDescriptions": {
                         "typeIdentifier": "t_type$_t_uint8_$",
                         "typeString": "type(uint8)"
                       },
                       "typeName": {
-                        "id": 3375,
+                        "id": 3844,
                         "name": "uint8",
                         "nodeType": "ElementaryTypeName",
-                        "src": "10489:5:1",
+                        "src": "10489:5:7",
                         "typeDescriptions": {}
                       }
                     },
-                    "id": 3384,
+                    "id": 3853,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -40670,7 +40670,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "10489:26:1",
+                    "src": "10489:26:7",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint8",
@@ -40678,16 +40678,16 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "10477:38:1"
+                  "src": "10477:38:7"
                 },
                 {
                   "AST": {
                     "nodeType": "YulBlock",
-                    "src": "10533:104:1",
+                    "src": "10533:104:7",
                     "statements": [
                       {
                         "nodeType": "YulAssignment",
-                        "src": "10547:22:1",
+                        "src": "10547:22:7",
                         "value": {
                           "arguments": [
                             {
@@ -40695,12 +40695,12 @@
                                 {
                                   "name": "b",
                                   "nodeType": "YulIdentifier",
-                                  "src": "10562:1:1"
+                                  "src": "10562:1:7"
                                 },
                                 {
                                   "kind": "number",
                                   "nodeType": "YulLiteral",
-                                  "src": "10565:2:1",
+                                  "src": "10565:2:7",
                                   "type": "",
                                   "value": "32"
                                 }
@@ -40708,89 +40708,89 @@
                               "functionName": {
                                 "name": "add",
                                 "nodeType": "YulIdentifier",
-                                "src": "10558:3:1"
+                                "src": "10558:3:7"
                               },
                               "nodeType": "YulFunctionCall",
-                              "src": "10558:10:1"
+                              "src": "10558:10:7"
                             }
                           ],
                           "functionName": {
                             "name": "mload",
                             "nodeType": "YulIdentifier",
-                            "src": "10552:5:1"
+                            "src": "10552:5:7"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "10552:17:1"
+                          "src": "10552:17:7"
                         },
                         "variableNames": [
                           {
                             "name": "r",
                             "nodeType": "YulIdentifier",
-                            "src": "10547:1:1"
+                            "src": "10547:1:7"
                           }
                         ]
                       },
                       {
                         "nodeType": "YulAssignment",
-                        "src": "10582:16:1",
+                        "src": "10582:16:7",
                         "value": {
                           "arguments": [
                             {
                               "name": "len",
                               "nodeType": "YulIdentifier",
-                              "src": "10591:3:1"
+                              "src": "10591:3:7"
                             },
                             {
                               "name": "r",
                               "nodeType": "YulIdentifier",
-                              "src": "10596:1:1"
+                              "src": "10596:1:7"
                             }
                           ],
                           "functionName": {
                             "name": "shr",
                             "nodeType": "YulIdentifier",
-                            "src": "10587:3:1"
+                            "src": "10587:3:7"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "10587:11:1"
+                          "src": "10587:11:7"
                         },
                         "variableNames": [
                           {
                             "name": "r",
                             "nodeType": "YulIdentifier",
-                            "src": "10582:1:1"
+                            "src": "10582:1:7"
                           }
                         ]
                       },
                       {
                         "nodeType": "YulAssignment",
-                        "src": "10611:16:1",
+                        "src": "10611:16:7",
                         "value": {
                           "arguments": [
                             {
                               "name": "len",
                               "nodeType": "YulIdentifier",
-                              "src": "10620:3:1"
+                              "src": "10620:3:7"
                             },
                             {
                               "name": "r",
                               "nodeType": "YulIdentifier",
-                              "src": "10625:1:1"
+                              "src": "10625:1:7"
                             }
                           ],
                           "functionName": {
                             "name": "shl",
                             "nodeType": "YulIdentifier",
-                            "src": "10616:3:1"
+                            "src": "10616:3:7"
                           },
                           "nodeType": "YulFunctionCall",
-                          "src": "10616:11:1"
+                          "src": "10616:11:7"
                         },
                         "variableNames": [
                           {
                             "name": "r",
                             "nodeType": "YulIdentifier",
-                            "src": "10611:1:1"
+                            "src": "10611:1:7"
                           }
                         ]
                       }
@@ -40799,106 +40799,106 @@
                   "evmVersion": "istanbul",
                   "externalReferences": [
                     {
-                      "declaration": 3346,
+                      "declaration": 3815,
                       "isOffset": false,
                       "isSlot": false,
-                      "src": "10562:1:1",
+                      "src": "10562:1:7",
                       "valueSize": 1
                     },
                     {
-                      "declaration": 3374,
+                      "declaration": 3843,
                       "isOffset": false,
                       "isSlot": false,
-                      "src": "10591:3:1",
+                      "src": "10591:3:7",
                       "valueSize": 1
                     },
                     {
-                      "declaration": 3374,
+                      "declaration": 3843,
                       "isOffset": false,
                       "isSlot": false,
-                      "src": "10620:3:1",
+                      "src": "10620:3:7",
                       "valueSize": 1
                     },
                     {
-                      "declaration": 3371,
+                      "declaration": 3840,
                       "isOffset": false,
                       "isSlot": false,
-                      "src": "10547:1:1",
+                      "src": "10547:1:7",
                       "valueSize": 1
                     },
                     {
-                      "declaration": 3371,
+                      "declaration": 3840,
                       "isOffset": false,
                       "isSlot": false,
-                      "src": "10582:1:1",
+                      "src": "10582:1:7",
                       "valueSize": 1
                     },
                     {
-                      "declaration": 3371,
+                      "declaration": 3840,
                       "isOffset": false,
                       "isSlot": false,
-                      "src": "10596:1:1",
+                      "src": "10596:1:7",
                       "valueSize": 1
                     },
                     {
-                      "declaration": 3371,
+                      "declaration": 3840,
                       "isOffset": false,
                       "isSlot": false,
-                      "src": "10611:1:1",
+                      "src": "10611:1:7",
                       "valueSize": 1
                     },
                     {
-                      "declaration": 3371,
+                      "declaration": 3840,
                       "isOffset": false,
                       "isSlot": false,
-                      "src": "10625:1:1",
+                      "src": "10625:1:7",
                       "valueSize": 1
                     }
                   ],
-                  "id": 3386,
+                  "id": 3855,
                   "nodeType": "InlineAssembly",
-                  "src": "10525:112:1"
+                  "src": "10525:112:7"
                 },
                 {
                   "expression": {
-                    "id": 3387,
+                    "id": 3856,
                     "name": "r",
                     "nodeType": "Identifier",
                     "overloadedDeclarations": [],
-                    "referencedDeclaration": 3371,
-                    "src": "10653:1:1",
+                    "referencedDeclaration": 3840,
+                    "src": "10653:1:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
                     }
                   },
-                  "functionReturnParameters": 3350,
-                  "id": 3388,
+                  "functionReturnParameters": 3819,
+                  "id": 3857,
                   "nodeType": "Return",
-                  "src": "10646:8:1"
+                  "src": "10646:8:7"
                 }
               ]
             },
-            "id": 3390,
+            "id": 3859,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_asByte32",
-            "nameLocation": "10262:9:1",
+            "nameLocation": "10262:9:7",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 3347,
+              "id": 3816,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 3346,
+                  "id": 3815,
                   "mutability": "mutable",
                   "name": "b",
-                  "nameLocation": "10285:1:1",
+                  "nameLocation": "10285:1:7",
                   "nodeType": "VariableDeclaration",
-                  "scope": 3390,
-                  "src": "10272:14:1",
+                  "scope": 3859,
+                  "src": "10272:14:7",
                   "stateVariable": false,
                   "storageLocation": "memory",
                   "typeDescriptions": {
@@ -40906,10 +40906,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 3345,
+                    "id": 3814,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10272:5:1",
+                    "src": "10272:5:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -40918,21 +40918,21 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "10271:16:1"
+              "src": "10271:16:7"
             },
             "returnParameters": {
-              "id": 3350,
+              "id": 3819,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 3349,
+                  "id": 3818,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 3390,
-                  "src": "10311:7:1",
+                  "scope": 3859,
+                  "src": "10311:7:7",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -40940,10 +40940,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 3348,
+                    "id": 3817,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "10311:7:1",
+                    "src": "10311:7:7",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -40952,29 +40952,29 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "10310:9:1"
+              "src": "10310:9:7"
             },
-            "scope": 3391,
-            "src": "10253:408:1",
+            "scope": 3860,
+            "src": "10253:408:7",
             "stateMutability": "pure",
             "virtual": false,
             "visibility": "internal"
           }
         ],
-        "scope": 3392,
-        "src": "322:10341:1",
+        "scope": 3861,
+        "src": "322:10341:7",
         "usedErrors": []
       }
     ],
-    "src": "39:10625:1"
+    "src": "39:10625:7"
   },
   "compiler": {
     "name": "solc",
     "version": "0.8.4+commit.c7e474f2.Emscripten.clang"
   },
   "networks": {},
-  "schemaVersion": "3.4.1",
-  "updatedAt": "2021-07-27T08:38:10.072Z",
+  "schemaVersion": "3.4.2",
+  "updatedAt": "2021-08-05T09:45:29.891Z",
   "devdoc": {
     "kind": "dev",
     "methods": {

From c2eaa4cb4448a17e7efda070de89ee8010bb3ae8 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 03:14:49 -0700
Subject: [PATCH 33/59] new computeRecoveryHash; deprecate bruteforceEOTP

---
 code/lib/onewallet.js | 15 ++++++++++-----
 code/lib/util.js      |  8 +++++++-
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/code/lib/onewallet.js b/code/lib/onewallet.js
index e70a20a7..7409a836 100644
--- a/code/lib/onewallet.js
+++ b/code/lib/onewallet.js
@@ -1,4 +1,4 @@
-const { sha256: fastSHA256, sha256b, processOtpSeed } = require('./util')
+const { sha256: fastSHA256, sha256b, processOtpSeed, DEPRECATED } = require('./util')
 // eslint-disable-next-line no-unused-vars
 const { hexView, genOTP, hexStringToBytes, keccak, bytesEqual } = require('./util')
 const BN = require('bn.js')
@@ -182,19 +182,24 @@ const computeEOTP = async ({ otp, otp2, rand = null, hseed, nonce = 0, hasher =
   return hasher(buffer)
 }
 
-const computeRecoveryHash = () => {
-  const input = new Uint8Array(32)
-  return { hash: input, bytes: input }
+const computeRecoveryHash = (rseed, input) => {
+  rseed = rseed || new Uint8Array(new BigUint64Array([0, Date.now()]).buffer)
+  input = input || new Uint8Array(32)
+  // eslint-disable-next-line new-cap
+  const aes = new AES.ModeOfOperation.ctr(rseed)
+  const bytes = aes.encrypt(input)
+  return { hash: keccak(bytes), bytes }
 }
 
 /**
- * WARNING: This shall be removed after Client Security is implemented. https://github.com/polymorpher/one-wallet/wiki/Client-Security
+ * DEPRECATED: This is DEPRECATED as Client Security is already implemented. https://github.com/polymorpher/one-wallet/wiki/Client-Security
  * @param hseed
  * @param nonce
  * @param leaf
  * @returns {{eotp: Uint8Array, otp: number}|{}}
  */
 const bruteforceEOTP = ({ hseed, nonce = 0, leaf }) => {
+  DEPRECATED()
   const nonceBuffer = new Uint16Array([nonce])
   const buffer = new Uint8Array(32)
   const otpBuffer = new DataView(new ArrayBuffer(4))
diff --git a/code/lib/util.js b/code/lib/util.js
index dc2a0de3..0fa16e59 100644
--- a/code/lib/util.js
+++ b/code/lib/util.js
@@ -6,7 +6,7 @@ const BN = require('bn.js')
 const argon2 = require('argon2-browser')
 const base32 = require('hi-base32')
 const STANDARD_DECIMAL = 18
-
+const PERMIT_DEPRECATED_METHOD = process.env.PERMIT_DEPRECATED_METHOD
 const utils = {
   hexView: (bytes) => {
     return bytes && Array.from(bytes).map(x => x.toString(16).padStart(2, '0')).join('')
@@ -161,6 +161,12 @@ const utils = {
       return utils.argon2
     }
     return utils.sha256b
+  },
+
+  DEPRECATED: () => {
+    if (!PERMIT_DEPRECATED_METHOD) {
+      throw new Error('Deprecated')
+    }
   }
 
 }

From a7e5845101371cb436c7a381cafbc5fe4b3cb73d Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 03:37:10 -0700
Subject: [PATCH 34/59] special treatment for recover operation in
 _verifyReveal and _completeReveal

---
 code/contracts/ONEWallet.sol | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/code/contracts/ONEWallet.sol b/code/contracts/ONEWallet.sol
index c1318c28..81d64606 100644
--- a/code/contracts/ONEWallet.sol
+++ b/code/contracts/ONEWallet.sol
@@ -304,8 +304,8 @@ contract ONEWallet is TokenTracker {
         }
         (bytes32 commitHash, bytes32 paramsHash) = _getRevealHash(neighbors[0], indexWithNonce, eotp,
             operationType, tokenType, contractAddress, tokenId, dest, amount, data);
-        uint32 commitIndex = _verifyReveal(commitHash, indexWithNonce, paramsHash, eotp);
-        _completeReveal(commitHash, commitIndex);
+        uint32 commitIndex = _verifyReveal(commitHash, indexWithNonce, paramsHash, eotp, operationType);
+        _completeReveal(commitHash, commitIndex, operationType);
         // No revert should occur below this point
         if (operationType == OperationType.TRACK) {
             if (data.length > 0) {
@@ -406,7 +406,7 @@ contract ONEWallet is TokenTracker {
     }
 
     /// This function verifies that the first valid entry with respect to the given `eotp` in `commitLocker[hash]` matches the provided `paramsHash` and `verificationHash`. An entry is valid with respect to `eotp` iff `h3(entry.paramsHash . eotp)` equals `entry.verificationHash`
-    function _verifyReveal(bytes32 hash, uint32 indexWithNonce, bytes32 paramsHash, bytes32 eotp) view internal returns (uint32)
+    function _verifyReveal(bytes32 hash, uint32 indexWithNonce, bytes32 paramsHash, bytes32 eotp, OperationType operationType) view internal returns (uint32)
     {
         uint32 index = indexWithNonce / maxOperationsPerInterval;
         uint8 nonce = uint8(indexWithNonce % maxOperationsPerInterval);
@@ -420,10 +420,12 @@ contract ONEWallet is TokenTracker {
                 continue;
             }
             require(c.paramsHash == paramsHash, "Parameter hash mismatch");
-            uint32 counter = c.timestamp / interval - t0;
-            require(counter == index, "Index - timestamp mismatch");
-            uint8 expectedNonce = nonces[counter];
-            require(nonce >= expectedNonce, "Nonce too low");
+            if (operationType != OperationType.RECOVER) {
+                uint32 counter = c.timestamp / interval - t0;
+                require(counter == index, "Index - timestamp mismatch");
+                uint8 expectedNonce = nonces[counter];
+                require(nonce >= expectedNonce, "Nonce too low");
+            }
             require(!c.completed, "Commit already completed");
             // This normally should not happen, but when the network is congested (regardless of whether due to an attacker's malicious acts or not), the legitimate reveal may become untimely. This may happen before the old commit is cleaned up by another fresh commit. We enforce this restriction so that the attacker would not have a lot of time to reverse-engineer a single EOTP or leaf using an old commit.
             require(_isRevealTimely(c.timestamp), "Reveal too late");
@@ -432,16 +434,17 @@ contract ONEWallet is TokenTracker {
         revert("No valid commit");
     }
 
-    function _completeReveal(bytes32 commitHash, uint32 commitIndex) internal {
+    function _completeReveal(bytes32 commitHash, uint32 commitIndex, OperationType operationType) internal {
         Commit[] storage cc = commitLocker[commitHash];
         require(cc.length > 0, "Invalid commit hash");
         require(cc.length > commitIndex, "Invalid commitIndex");
         Commit storage c = cc[commitIndex];
         require(c.timestamp > 0, "Invalid commit timestamp");
-        // should not happen
-        uint32 index = uint32(c.timestamp) / interval - t0;
-        _incrementNonce(index);
-        _cleanupNonces();
+        if (operationType != OperationType.RECOVER) {
+            uint32 index = uint32(c.timestamp) / interval - t0;
+            _incrementNonce(index);
+            _cleanupNonces();
+        }
         c.completed = true;
     }
 

From 7b57e9fbe1577c69ea7af4959aa760c6637a77a8 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 03:37:17 -0700
Subject: [PATCH 35/59] compiled contracts

---
 code/build/contracts/ONEWallet.json | 10536 ++++++++++++++------------
 1 file changed, 5506 insertions(+), 5030 deletions(-)

diff --git a/code/build/contracts/ONEWallet.json b/code/build/contracts/ONEWallet.json
index 53493895..b883c284 100644
--- a/code/build/contracts/ONEWallet.json
+++ b/code/build/contracts/ONEWallet.json
@@ -904,9 +904,9 @@
       "type": "function"
     }
   ],
-  "metadata": "{\"compiler\":{\"version\":\"0.8.4+commit.c7e474f2\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"root_\",\"type\":\"bytes32\"},{\"internalType\":\"uint8\",\"name\":\"height_\",\"type\":\"uint8\"},{\"internalType\":\"uint8\",\"name\":\"interval_\",\"type\":\"uint8\"},{\"internalType\":\"uint32\",\"name\":\"t0_\",\"type\":\"uint32\"},{\"internalType\":\"uint32\",\"name\":\"lifespan_\",\"type\":\"uint32\"},{\"internalType\":\"uint8\",\"name\":\"maxOperationsPerInterval_\",\"type\":\"uint8\"},{\"internalType\":\"address payable\",\"name\":\"lastResortAddress_\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"dailyLimit_\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"}],\"name\":\"AutoRecoveryTriggered\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"limit\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"current\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"}],\"name\":\"ExceedDailyLimit\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"balance\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"}],\"name\":\"InsufficientFund\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[],\"name\":\"LastResortAddressNotSet\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"}],\"name\":\"PaymentReceived\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"}],\"name\":\"PaymentSent\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"tokenContract\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"ReceivedToken\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[],\"name\":\"RecoveryFailure\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenNotFound\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenTracked\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"string\",\"name\":\"reason\",\"type\":\"string\"}],\"name\":\"TokenTransferError\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferFailed\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferSucceeded\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum 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ONEWallet.OperationType\",\"name\":\"operationType\",\"type\":\"uint8\"},{\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"address 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This function is called at the end of a `safeBatchTransferFrom` after the balances have been updated. To accept the transfer(s), this must return `bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` (i.e. 0xbc197c81, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"ids\":\"An array containing ids of each token being transferred (order and length must match values array)\",\"operator\":\"The address which initiated the batch transfer (i.e. msg.sender)\",\"values\":\"An array containing amounts of each token being transferred (order and length must match ids array)\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` if transfer is allowed\"}},\"onERC1155Received(address,address,uint256,uint256,bytes)\":{\"details\":\"Handles the receipt of a single ERC1155 token type. This function is called at the end of a `safeTransferFrom` after the balance has been updated. To accept the transfer, this must return `bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` (i.e. 0xf23a6e61, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"id\":\"The ID of the token being transferred\",\"operator\":\"The address which initiated the transfer (i.e. msg.sender)\",\"value\":\"The amount of tokens being transferred\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` if transfer is allowed\"}},\"onERC721Received(address,address,uint256,bytes)\":{\"details\":\"Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} by `operator` from `from`, this function is called. It must return its Solidity selector to confirm the token transfer. If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"project:/contracts/ONEWallet.sol\":\"ONEWallet\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/token/ERC1155/IERC1155.sol\":{\"keccak256\":\"0xfce1eb6398eae0e2b50251140866a70a3106193f101972c878bba1dbf44929ec\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://4f0709c3f462b28b400f57db181254ad970967c3b49a8948ef5e05929b106ffe\",\"dweb:/ipfs/QmNe3sRmPKw1T7q7m733tk7tFKpi3jo9PCisDPMbjeg3kJ\"]},\"@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol\":{\"keccak256\":\"0x7de6e64d4a8075e803a972cc77c4c91463e0c3777e4110eacfb5d4a71759b2fa\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://b83b3b09ef36374c1c104ee896797dadf2e81466d2143b481d3f1ddc7d9f3873\",\"dweb:/ipfs/QmSWtqs28RHDezRWBbmEfqiPYwsGTKj44NRbuxvZ96cqMU\"]},\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"keccak256\":\"0x027b891937d20ccf213fdb9c31531574256de774bda99d3a70ecef6e1913ed2a\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://087318b21c528119f649899f5b5580566dd8d7b0303d4904bd0e8580c3545f14\",\"dweb:/ipfs/Qmbn5Mj7aUn8hJuQ8VrQjjEXRsXyJKykgnjR9p4C3nfLtL\"]},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0xf101e8720213560fab41104d53b3cc7ba0456ef3a98455aa7f022391783144a0\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://3e7820bcf567e6892d937c3cb10db263a4042e446799bca602535868d822384e\",\"dweb:/ipfs/QmPG2oeDjKncqsEeyYGjAN7CwAJmMgHterXGGnpzhha4z7\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\":{\"keccak256\":\"0xd9517254724276e2e8de3769183c1f738f445f0095c26fd9b86d3c6687e887b9\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://0e604bcdcd5e5b2fb299ad09769cde6db19d5aa1929d1b5e939234a0f10d7eb8\",\"dweb:/ipfs/Qmd8hXE3GZfBHuWx3RNiYgFW2ci7KvHtib8DiwzJ2dgo9V\"]},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"keccak256\":\"0xa28007762d9da9db878dd421960c8cb9a10471f47ab5c1b3309bfe48e9e79ff4\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://796ab6e88af7bf0e78def0f059310c903af6a312b565344e0ff524a0f26e81c6\",\"dweb:/ipfs/QmcsVgLgzWdor3UnAztUkXKNGcysm1MPneWksF72AvnwBx\"]},\"project:/contracts/ONEWallet.sol\":{\"keccak256\":\"0x3c460e524aa8f0f382ba1b2664859e44fee3eb4e981cc4afce3bb88a4a6ed7c2\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://5529453131bc55a1ccbdb48f9443b7c6b1ac3dfa3fc6fa3dc2866cc6839e9db3\",\"dweb:/ipfs/QmeZVpS7mAgCPJyq1iPSjWwj3XbieqssMjxTLieMT4Gy3X\"]},\"project:/contracts/TokenTracker.sol\":{\"keccak256\":\"0x153e8bd4263b7b071e5c4e9e44f5da2afb16c74207e8a6a071c837721de1747b\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://5550ad4a2929a9216432939182544a355ccfa1fdc04566497d4215d08171d115\",\"dweb:/ipfs/QmRkCR7qmJP6oLqFs7FbAZNgQUV9PNRLweP4Kkv3L81AW7\"]}},\"version\":1}",
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TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"tokenContract\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"ReceivedToken\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[],\"name\":\"RecoveryFailure\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenNotFound\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenTracked\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum 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This function is called at the end of a `safeBatchTransferFrom` after the balances have been updated. To accept the transfer(s), this must return `bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` (i.e. 0xbc197c81, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"ids\":\"An array containing ids of each token being transferred (order and length must match values array)\",\"operator\":\"The address which initiated the batch transfer (i.e. msg.sender)\",\"values\":\"An array containing amounts of each token being transferred (order and length must match ids array)\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` if transfer is allowed\"}},\"onERC1155Received(address,address,uint256,uint256,bytes)\":{\"details\":\"Handles the receipt of a single ERC1155 token type. This function is called at the end of a `safeTransferFrom` after the balance has been updated. To accept the transfer, this must return `bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` (i.e. 0xf23a6e61, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"id\":\"The ID of the token being transferred\",\"operator\":\"The address which initiated the transfer (i.e. msg.sender)\",\"value\":\"The amount of tokens being transferred\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` if transfer is allowed\"}},\"onERC721Received(address,address,uint256,bytes)\":{\"details\":\"Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} by `operator` from `from`, this function is called. It must return its Solidity selector to confirm the token transfer. If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"project:/contracts/ONEWallet.sol\":\"ONEWallet\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/token/ERC1155/IERC1155.sol\":{\"keccak256\":\"0xfce1eb6398eae0e2b50251140866a70a3106193f101972c878bba1dbf44929ec\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://4f0709c3f462b28b400f57db181254ad970967c3b49a8948ef5e05929b106ffe\",\"dweb:/ipfs/QmNe3sRmPKw1T7q7m733tk7tFKpi3jo9PCisDPMbjeg3kJ\"]},\"@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol\":{\"keccak256\":\"0x7de6e64d4a8075e803a972cc77c4c91463e0c3777e4110eacfb5d4a71759b2fa\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://b83b3b09ef36374c1c104ee896797dadf2e81466d2143b481d3f1ddc7d9f3873\",\"dweb:/ipfs/QmSWtqs28RHDezRWBbmEfqiPYwsGTKj44NRbuxvZ96cqMU\"]},\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"keccak256\":\"0x027b891937d20ccf213fdb9c31531574256de774bda99d3a70ecef6e1913ed2a\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://087318b21c528119f649899f5b5580566dd8d7b0303d4904bd0e8580c3545f14\",\"dweb:/ipfs/Qmbn5Mj7aUn8hJuQ8VrQjjEXRsXyJKykgnjR9p4C3nfLtL\"]},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0xf101e8720213560fab41104d53b3cc7ba0456ef3a98455aa7f022391783144a0\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://3e7820bcf567e6892d937c3cb10db263a4042e446799bca602535868d822384e\",\"dweb:/ipfs/QmPG2oeDjKncqsEeyYGjAN7CwAJmMgHterXGGnpzhha4z7\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\":{\"keccak256\":\"0xd9517254724276e2e8de3769183c1f738f445f0095c26fd9b86d3c6687e887b9\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://0e604bcdcd5e5b2fb299ad09769cde6db19d5aa1929d1b5e939234a0f10d7eb8\",\"dweb:/ipfs/Qmd8hXE3GZfBHuWx3RNiYgFW2ci7KvHtib8DiwzJ2dgo9V\"]},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"keccak256\":\"0xa28007762d9da9db878dd421960c8cb9a10471f47ab5c1b3309bfe48e9e79ff4\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://796ab6e88af7bf0e78def0f059310c903af6a312b565344e0ff524a0f26e81c6\",\"dweb:/ipfs/QmcsVgLgzWdor3UnAztUkXKNGcysm1MPneWksF72AvnwBx\"]},\"project:/contracts/ONEWallet.sol\":{\"keccak256\":\"0x2053288cb89b882fb5fb435952055eac827f8cacb27ab76ae693cf92ceac6161\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://4ed8af3d81cf96976394b0589764e14a814f2fa78092c0bd720aee2c71265ee2\",\"dweb:/ipfs/QmcpGvbaZZAoMpp5ziUUQmyQaXFA6RabL7zChbfQHR2am8\"]},\"project:/contracts/TokenTracker.sol\":{\"keccak256\":\"0x153e8bd4263b7b071e5c4e9e44f5da2afb16c74207e8a6a071c837721de1747b\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://5550ad4a2929a9216432939182544a355ccfa1fdc04566497d4215d08171d115\",\"dweb:/ipfs/QmRkCR7qmJP6oLqFs7FbAZNgQUV9PNRLweP4Kkv3L81AW7\"]}},\"version\":1}",
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-        "start": 3681
+        "start": 3682
       }
     ],
     "447": [
@@ -1005,21 +1005,21 @@
       },
       {
         "length": 32,
-        "start": 8704
+        "start": 8707
       },
       {
         "length": 32,
-        "start": 8753
+        "start": 8756
       }
     ],
     "449": [
       {
         "length": 32,
-        "start": 4331
+        "start": 4332
       },
       {
         "length": 32,
-        "start": 7557
+        "start": 7560
       }
     ]
   },
@@ -7208,7 +7208,7 @@
                 }
               ]
             },
-            "name": "abi_decode_tuple_t_array$_t_bytes32_$dyn_calldata_ptrt_uint32t_bytes32t_enum$_OperationType_$493t_enum$_TokenType_$2607t_addresst_uint256t_address_payablet_uint256t_bytes_calldata_ptr",
+            "name": "abi_decode_tuple_t_array$_t_bytes32_$dyn_calldata_ptrt_uint32t_bytes32t_enum$_OperationType_$493t_enum$_TokenType_$2627t_addresst_uint256t_address_payablet_uint256t_bytes_calldata_ptr",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
@@ -14966,7 +14966,7 @@
                 }
               ]
             },
-            "name": "abi_encode_tuple_t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__to_t_array$_t_uint8_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__fromStack_reversed",
+            "name": "abi_encode_tuple_t_array$_t_enum$_TokenType_$2627_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__to_t_array$_t_uint8_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__fromStack_reversed",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
@@ -16325,7 +16325,7 @@
                 }
               ]
             },
-            "name": "abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256__to_t_uint8_t_address_t_uint256__fromStack_reversed",
+            "name": "abi_encode_tuple_t_enum$_TokenType_$2627_t_address_t_uint256__to_t_uint8_t_address_t_uint256__fromStack_reversed",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
@@ -16688,7 +16688,7 @@
                 }
               ]
             },
-            "name": "abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256_t_address_t_uint256__to_t_uint8_t_address_t_uint256_t_address_t_uint256__fromStack_reversed",
+            "name": "abi_encode_tuple_t_enum$_TokenType_$2627_t_address_t_uint256_t_address_t_uint256__to_t_uint8_t_address_t_uint256_t_address_t_uint256__fromStack_reversed",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
@@ -17124,7 +17124,7 @@
                 }
               ]
             },
-            "name": "abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed",
+            "name": "abi_encode_tuple_t_enum$_TokenType_$2627_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
@@ -17593,7 +17593,7 @@
                 }
               ]
             },
-            "name": "abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256_t_address_t_uint256_t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed",
+            "name": "abi_encode_tuple_t_enum$_TokenType_$2627_t_address_t_uint256_t_address_t_uint256_t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
@@ -18093,7 +18093,7 @@
                 }
               ]
             },
-            "name": "abi_encode_tuple_t_enum$_TokenType_$2607_t_rational_1_by_1_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed",
+            "name": "abi_encode_tuple_t_enum$_TokenType_$2627_t_rational_1_by_1_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
@@ -18611,7 +18611,7 @@
                 }
               ]
             },
-            "name": "abi_encode_tuple_t_enum$_TokenType_$2607_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed",
+            "name": "abi_encode_tuple_t_enum$_TokenType_$2627_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed",
             "nodeType": "YulFunctionDefinition",
             "parameters": [
               {
@@ -27957,15 +27957,15 @@
           }
         ]
       },
-      "contents": "{\n    { }\n    function abi_decode_address(offset) -> value\n    {\n        value := calldataload(offset)\n        validator_revert_address(value)\n    }\n    function abi_decode_array_bytes32_dyn_calldata(offset, end) -> arrayPos, length\n    {\n        if iszero(slt(add(offset, 0x1f), end)) { revert(arrayPos, arrayPos) }\n        length := calldataload(offset)\n        if gt(length, 0xffffffffffffffff) { revert(arrayPos, arrayPos) }\n        arrayPos := add(offset, 0x20)\n        if gt(add(add(offset, shl(5, length)), 0x20), end) { revert(0, 0) }\n    }\n    function abi_decode_bytes_calldata(offset, end) -> arrayPos, length\n    {\n        if iszero(slt(add(offset, 0x1f), end)) { revert(arrayPos, arrayPos) }\n        length := calldataload(offset)\n        if gt(length, 0xffffffffffffffff) { revert(arrayPos, arrayPos) }\n        arrayPos := add(offset, 0x20)\n        if gt(add(add(offset, length), 0x20), end) { revert(0, 0) }\n    }\n    function abi_decode_enum_OperationType(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(lt(value, 8)) { revert(0, 0) }\n    }\n    function abi_decode_enum_TokenType(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(lt(value, 4)) { revert(0, 0) }\n    }\n    function abi_decode_uint32(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(eq(value, and(value, 0xffffffff))) { revert(0, 0) }\n    }\n    function abi_decode_tuple_t_addresst_addresst_array$_t_uint256_$dyn_calldata_ptrt_array$_t_uint256_$dyn_calldata_ptrt_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5, value6, value7\n    {\n        if slt(sub(dataEnd, headStart), 160) { revert(value4, value4) }\n        let value := calldataload(headStart)\n        validator_revert_address(value)\n        value0 := value\n        let value_1 := calldataload(add(headStart, 32))\n        validator_revert_address(value_1)\n        value1 := value_1\n        let offset := calldataload(add(headStart, 64))\n        let _1 := 0xffffffffffffffff\n        if gt(offset, _1) { revert(value4, value4) }\n        let value2_1, value3_1 := abi_decode_array_bytes32_dyn_calldata(add(headStart, offset), dataEnd)\n        value2 := value2_1\n        value3 := value3_1\n        let offset_1 := calldataload(add(headStart, 96))\n        if gt(offset_1, _1) { revert(value4, value4) }\n        let value4_1, value5_1 := abi_decode_array_bytes32_dyn_calldata(add(headStart, offset_1), dataEnd)\n        value4 := value4_1\n        value5 := value5_1\n        let offset_2 := calldataload(add(headStart, 128))\n        if gt(offset_2, _1) { revert(value6, value6) }\n        let value6_1, value7_1 := abi_decode_bytes_calldata(add(headStart, offset_2), dataEnd)\n        value6 := value6_1\n        value7 := value7_1\n    }\n    function abi_decode_tuple_t_addresst_addresst_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4\n    {\n        if slt(sub(dataEnd, headStart), 128) { revert(value4, value4) }\n        let value := calldataload(headStart)\n        validator_revert_address(value)\n        value0 := value\n        let value_1 := calldataload(add(headStart, 32))\n        validator_revert_address(value_1)\n        value1 := value_1\n        value2 := calldataload(add(headStart, 64))\n        let offset := calldataload(add(headStart, 96))\n        if gt(offset, 0xffffffffffffffff) { revert(value4, value4) }\n        let value3_1, value4_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n        value3 := value3_1\n        value4 := value4_1\n    }\n    function abi_decode_tuple_t_addresst_addresst_uint256t_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5\n    {\n        if slt(sub(dataEnd, headStart), 160) { revert(value4, value4) }\n        let value := calldataload(headStart)\n        validator_revert_address(value)\n        value0 := value\n        let value_1 := calldataload(add(headStart, 32))\n        validator_revert_address(value_1)\n        value1 := value_1\n        value2 := calldataload(add(headStart, 64))\n        value3 := calldataload(add(headStart, 96))\n        let offset := calldataload(add(headStart, 128))\n        if gt(offset, 0xffffffffffffffff) { revert(value4, value4) }\n        let value4_1, value5_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n        value4 := value4_1\n        value5 := value5_1\n    }\n    function abi_decode_tuple_t_array$_t_bytes32_$dyn_calldata_ptrt_uint32t_bytes32t_enum$_OperationType_$493t_enum$_TokenType_$2607t_addresst_uint256t_address_payablet_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5, value6, value7, value8, value9, value10, value11\n    {\n        if slt(sub(dataEnd, headStart), 320) { revert(value8, value8) }\n        if gt(calldataload(headStart), 0xffffffffffffffff) { revert(value8, value8) }\n        let value0_1, value1_1 := abi_decode_array_bytes32_dyn_calldata(add(headStart, calldataload(headStart)), dataEnd)\n        value0 := value0_1\n        value1 := value1_1\n        value2 := abi_decode_uint32(add(headStart, 32))\n        value3 := calldataload(add(headStart, 64))\n        value4 := abi_decode_enum_OperationType(add(headStart, 96))\n        value5 := abi_decode_enum_TokenType(add(headStart, 128))\n        value6 := abi_decode_address(add(headStart, 160))\n        value7 := calldataload(add(headStart, 192))\n        value8 := abi_decode_address(add(headStart, 224))\n        value9 := calldataload(add(headStart, 256))\n        if gt(calldataload(add(headStart, 288)), 0xffffffffffffffff) { revert(value11, value11) }\n        let value10_1, value11_1 := abi_decode_bytes_calldata(add(headStart, calldataload(add(headStart, 288))), dataEnd)\n        value10 := value10_1\n        value11 := value11_1\n    }\n    function abi_decode_tuple_t_bool_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := mload(headStart)\n        if iszero(eq(value, iszero(iszero(value)))) { revert(value0, value0) }\n        value0 := value\n    }\n    function abi_decode_tuple_t_bytes32(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        value0 := calldataload(headStart)\n    }\n    function abi_decode_tuple_t_bytes32_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        value0 := mload(headStart)\n    }\n    function abi_decode_tuple_t_bytes32t_bytes32t_bytes32(headStart, dataEnd) -> value0, value1, value2\n    {\n        if slt(sub(dataEnd, headStart), 96) { revert(value2, value2) }\n        value0 := calldataload(headStart)\n        value1 := calldataload(add(headStart, 32))\n        value2 := calldataload(add(headStart, 64))\n    }\n    function abi_decode_tuple_t_bytes4(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := calldataload(headStart)\n        validator_revert_bytes4(value)\n        value0 := value\n    }\n    function abi_decode_tuple_t_bytes4_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := mload(headStart)\n        validator_revert_bytes4(value)\n        value0 := value\n    }\n    function abi_encode_array_bool_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, iszero(iszero(mload(srcPtr))))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_array_bytes32_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, mload(srcPtr))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_array_uint32_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, and(mload(srcPtr), 0xffffffff))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_bytes_calldata(start, length, pos) -> end\n    {\n        mstore(pos, length)\n        calldatacopy(add(pos, 0x20), start, length)\n        mstore(add(add(pos, length), 0x20), end)\n        end := add(add(pos, and(add(length, 31), not(31))), 0x20)\n    }\n    function abi_encode_bytes(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        copy_memory_to_memory(add(value, 0x20), add(pos, 0x20), length)\n        end := add(add(pos, and(add(length, 31), not(31))), 0x20)\n    }\n    function abi_encode_enum_TokenType(value, pos)\n    {\n        if iszero(lt(value, 4))\n        {\n            mstore(0, shl(224, 0x4e487b71))\n            mstore(4, 0x21)\n            revert(0, 0x24)\n        }\n        mstore(pos, value)\n    }\n    function abi_encode_tuple_packed_t_bytes32__to_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value0) -> end\n    {\n        mstore(pos, value0)\n        end := add(pos, 32)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32__to_t_bytes32_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        end := add(pos, 64)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32_t_bytes32__to_t_bytes32_t_bytes32_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value2, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        mstore(add(pos, 64), value2)\n        end := add(pos, 96)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes_calldata_ptr__to_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos, value7, value6, value5, value4, value3, value2, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        mstore(add(pos, 64), value2)\n        mstore(add(pos, 96), value3)\n        mstore(add(pos, 128), value4)\n        mstore(add(pos, 160), value5)\n        calldatacopy(add(pos, 192), value6, value7)\n        let _1 := add(add(pos, value7), 192)\n        mstore(_1, end)\n        end := _1\n    }\n    function abi_encode_tuple_packed_t_bytes_calldata_ptr__to_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos, value1, value0) -> end\n    {\n        calldatacopy(pos, value0, value1)\n        let _1 := add(pos, value1)\n        mstore(_1, end)\n        end := _1\n    }\n    function abi_encode_tuple_packed_t_bytes_memory_ptr__to_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos, value0) -> end\n    {\n        let length := mload(value0)\n        copy_memory_to_memory(add(value0, 0x20), pos, length)\n        end := add(pos, length)\n    }\n    function abi_encode_tuple_packed_t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470__to_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos) -> end\n    { end := pos }\n    function abi_encode_tuple_t_address__to_t_address__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_address_payable__to_t_address__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_bytes_memory_ptr__to_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), 128)\n        tail := abi_encode_bytes(value3, add(headStart, 128))\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_uint256_t_bytes_calldata_ptr__to_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), value3)\n        mstore(add(headStart, 128), 160)\n        tail := abi_encode_bytes_calldata(value4, value5, add(headStart, 160))\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__to_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), value3)\n        mstore(add(headStart, 128), 160)\n        tail := abi_encode_bytes(value4, add(headStart, 160))\n    }\n    function abi_encode_tuple_t_address_t_uint256__to_t_address_t_uint256__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, and(value0, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 32), value1)\n    }\n    function abi_encode_tuple_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__to_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        mstore(headStart, 160)\n        let tail_1 := abi_encode_array_bytes32_dyn(value0, add(headStart, 160))\n        mstore(add(headStart, 32), sub(tail_1, headStart))\n        let tail_2 := abi_encode_array_bytes32_dyn(value1, tail_1)\n        mstore(add(headStart, 64), sub(tail_2, headStart))\n        let tail_3 := abi_encode_array_bytes32_dyn(value2, tail_2)\n        mstore(add(headStart, 96), sub(tail_3, headStart))\n        let tail_4 := abi_encode_array_uint32_dyn(value3, tail_3)\n        mstore(add(headStart, 128), sub(tail_4, headStart))\n        tail := abi_encode_array_bool_dyn(value4, tail_4)\n    }\n    function abi_encode_tuple_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__to_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        mstore(headStart, 128)\n        let tail_1 := abi_encode_array_bytes32_dyn(value0, add(headStart, 128))\n        mstore(add(headStart, 32), sub(tail_1, headStart))\n        let tail_2 := abi_encode_array_bytes32_dyn(value1, tail_1)\n        mstore(add(headStart, 64), sub(tail_2, headStart))\n        let tail_3 := abi_encode_array_uint32_dyn(value2, tail_2)\n        mstore(add(headStart, 96), sub(tail_3, headStart))\n        tail := abi_encode_array_bool_dyn(value3, tail_3)\n    }\n    function abi_encode_tuple_t_array$_t_enum$_TokenType_$2607_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__to_t_array$_t_uint8_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        let tail_1 := add(headStart, 96)\n        mstore(headStart, 96)\n        let pos := tail_1\n        let length := mload(value0)\n        mstore(tail_1, length)\n        pos := add(headStart, 128)\n        let _1 := 0x20\n        let srcPtr := add(value0, _1)\n        let i := tail\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            abi_encode_enum_TokenType(mload(srcPtr), pos)\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        mstore(add(headStart, _1), sub(pos, headStart))\n        let pos_1 := pos\n        let length_1 := mload(value1)\n        mstore(pos, length_1)\n        pos_1 := add(pos, _1)\n        let srcPtr_1 := add(value1, _1)\n        let i_1 := tail\n        for { } lt(i_1, length_1) { i_1 := add(i_1, 1) }\n        {\n            mstore(pos_1, and(mload(srcPtr_1), sub(shl(160, 1), 1)))\n            pos_1 := add(pos_1, _1)\n            srcPtr_1 := add(srcPtr_1, _1)\n        }\n        mstore(add(headStart, 64), sub(pos_1, headStart))\n        tail := abi_encode_array_bytes32_dyn(value2, pos_1)\n    }\n    function abi_encode_tuple_t_bool__to_t_bool__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, iszero(iszero(value0)))\n    }\n    function abi_encode_tuple_t_bytes32_t_bytes32_t_uint32_t_bool__to_t_bytes32_t_bytes32_t_uint32_t_bool__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 128)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n        mstore(add(headStart, 64), and(value2, 0xffffffff))\n        mstore(add(headStart, 96), iszero(iszero(value3)))\n    }\n    function abi_encode_tuple_t_bytes32_t_uint8_t_uint8_t_uint32_t_uint32_t_uint8_t_address_t_uint256__to_t_bytes32_t_uint8_t_uint8_t_uint32_t_uint32_t_uint8_t_address_t_uint256__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 256)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), and(value1, 0xff))\n        mstore(add(headStart, 64), and(value2, 0xff))\n        let _1 := 0xffffffff\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), and(value5, 0xff))\n        mstore(add(headStart, 192), and(value6, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 224), value7)\n    }\n    function abi_encode_tuple_t_bytes4__to_t_bytes4__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, shl(224, 0xffffffff)))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256__to_t_uint8_t_address_t_uint256__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 96)\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 64), value2)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256_t_address_t_uint256__to_t_uint8_t_address_t_uint256_t_address_t_uint256__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 160)\n        abi_encode_enum_TokenType(value0, headStart)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), value4)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed(headStart, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), value4)\n        mstore(add(headStart, 160), 192)\n        tail := abi_encode_bytes(value5, add(headStart, 192))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_address_t_uint256_t_address_t_uint256_t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), value4)\n        mstore(add(headStart, 160), 192)\n        mstore(add(headStart, 192), tail)\n        tail := add(headStart, 224)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_rational_1_by_1_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), value1)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 64), and(value2, _1))\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), value5)\n        mstore(add(headStart, 192), 224)\n        tail := abi_encode_bytes_calldata(value6, value7, add(headStart, 224))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2607_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), value1)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 64), and(value2, _1))\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), value5)\n        mstore(add(headStart, 192), 224)\n        tail := abi_encode_bytes_calldata(value6, value7, add(headStart, 224))\n    }\n    function abi_encode_tuple_t_stringliteral_0c1004916946b89dffc8743f953d4885accbd82403cd8bd9e53f384fa95731af__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 16)\n        mstore(add(headStart, 64), \"Too many commits\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_0d3a5f34c29e81aa7bbfe59ba3e3db3006ac807af6a54ad3cac7463abb5d83b0__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 13)\n        mstore(add(headStart, 64), \"Nonce too low\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_1c2d20c6fc3078eff495891b6caa29a7be172ac7018d2f6172fb68ba87240f3d__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 30)\n        mstore(add(headStart, 64), \"Last resort address is not set\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_286e638d23bc87ce733fb0202708f485eb6091553feef3d943a83966c37e7639__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"Reveal too late\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_2c594e135171cc6dc0d96175148636924623810d2d534a029b78044ab417d7d0__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 20)\n        mstore(add(headStart, 64), \"input bytes too long\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_2d6af051cc9bdd806c60b20e274721a89fb9a7025afbe00dde07d3201c4068b2__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 24)\n        mstore(add(headStart, 64), \"Commit already completed\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_3430d3063c70bc84041a3bb75a9010a8e7685d878f7521f09ab01e30ea2f9f24__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 23)\n        mstore(add(headStart, 64), \"Parameter hash mismatch\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_38f47be26bf822ff597a5cbffa2774ecae1ceaa169f734b7db0a07fb62c9547a__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"No commit found\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_50d19c134c4136d96b547b25b22aa8e1363529709733541230ebfa41cb82b262__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 19)\n        mstore(add(headStart, 64), \"Too early to retire\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_52d0f8312a7e3bda426de31c2e4c71a1ad4900f389f87f89d2a2eb06a0683b80__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 26)\n        mstore(add(headStart, 64), \"Index - timestamp mismatch\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_5515ff285a2022327bc0ffdc690388a3a1d15360640a68caecd56fe24371f01a__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 18)\n        mstore(add(headStart, 64), \"Proof is incorrect\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_791866c3f9c9c03c601447bf48dd4e0bd3f849759626f2144adccf6e77c6e64d__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 24)\n        mstore(add(headStart, 64), \"Invalid commit timestamp\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_7fb6a81bbdba15000418055bc5e058938e4fd0b50065d70de11ee03ca8f293e3__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 36)\n        mstore(add(headStart, 64), \"data must have length multiple t\")\n        mstore(add(headStart, 96), \"o 96\")\n        tail := add(headStart, 128)\n    }\n    function abi_encode_tuple_t_stringliteral_83d08d6dcf099c52fbe149a08cb4ffd65f3fec6dbf87dba7bc08b7a534982441__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 29)\n        mstore(add(headStart, 64), \"Not enough neighbors provided\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_887bc482e9abfdf76109db32e10c15ef35a028513416621efc881c8a92574313__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"Recovery failed\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_8a9c0db4284cd81d8eaef3d877f21bcccab643ae503f9d63f7eb3ad5aacbe749__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 19)\n        mstore(add(headStart, 64), \"Invalid commit hash\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_b20dc6ef8ce4f94dd03e7dbd2b41776293fb93e4528d85e98acf1bfed3136f73__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 10)\n        mstore(add(headStart, 64), \"Deprecated\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_bc3ff827c71f29679c970d77c58ec807a06259e86e9cd823a8554b04d0d6f030__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 34)\n        mstore(add(headStart, 64), \"Last resort address is already s\")\n        mstore(add(headStart, 96), \"et\")\n        tail := add(headStart, 128)\n    }\n    function abi_encode_tuple_t_stringliteral_c3972966c6b890cd04bd250ec8fd05d1950759334a3d8fa4e9bb3d0693e9952d__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"No valid commit\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_dd8f27f99c8575d947c48310b46d36796c8df82285fc83fecd33510610055413__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 19)\n        mstore(add(headStart, 64), \"Invalid commitIndex\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_fab9828a623b3dec5ff9fd3a2c3a6f583ee6577f264fc8a5c168e0454ba5a4ba__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 35)\n        mstore(add(headStart, 64), \"Last operation reserved for reco\")\n        mstore(add(headStart, 96), \"ver\")\n        tail := add(headStart, 128)\n    }\n    function abi_encode_tuple_t_uint256_t_address__to_t_uint256_t_address__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint256_t_address_payable__to_t_uint256_t_address__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint256_t_uint256__to_t_uint256_t_uint256__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n    }\n    function abi_encode_tuple_t_uint256_t_uint256_t_address_payable__to_t_uint256_t_uint256_t_address__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 96)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n        mstore(add(headStart, 64), and(value2, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint256_t_uint256_t_uint256_t_address_payable__to_t_uint256_t_uint256_t_uint256_t_address__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 128)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint32_t_uint32__to_t_uint32_t_uint32__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        let _1 := 0xffffffff\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n    }\n    function abi_encode_tuple_t_uint8__to_t_uint8__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, 0xff))\n    }\n    function calldata_array_index_range_access_t_bytes_calldata_ptr(offset, length, startIndex, endIndex) -> offsetOut, lengthOut\n    {\n        if gt(startIndex, endIndex) { revert(offsetOut, offsetOut) }\n        if gt(endIndex, length) { revert(offsetOut, offsetOut) }\n        offsetOut := add(offset, startIndex)\n        lengthOut := sub(endIndex, startIndex)\n    }\n    function checked_add_t_uint256(x, y) -> sum\n    {\n        if gt(x, not(y)) { panic_error_0x11() }\n        sum := add(x, y)\n    }\n    function checked_add_t_uint32(x, y) -> sum\n    {\n        let _1 := 0xffffffff\n        let x_1 := and(x, _1)\n        let y_1 := and(y, _1)\n        if gt(x_1, sub(_1, y_1)) { panic_error_0x11() }\n        sum := add(x_1, y_1)\n    }\n    function checked_div_t_uint256(x, y) -> r\n    {\n        if iszero(y) { panic_error_0x12() }\n        r := div(x, y)\n    }\n    function checked_div_t_uint32(x, y) -> r\n    {\n        let _1 := 0xffffffff\n        let y_1 := and(y, _1)\n        if iszero(y_1) { panic_error_0x12() }\n        r := div(and(x, _1), y_1)\n    }\n    function checked_mul_t_uint256(x, y) -> product\n    {\n        if and(iszero(iszero(x)), gt(y, div(not(0), x))) { panic_error_0x11() }\n        product := mul(x, y)\n    }\n    function checked_mul_t_uint32(x, y) -> product\n    {\n        let _1 := 0xffffffff\n        let x_1 := and(x, _1)\n        let y_1 := and(y, _1)\n        if and(iszero(iszero(x_1)), gt(y_1, div(_1, x_1))) { panic_error_0x11() }\n        product := mul(x_1, y_1)\n    }\n    function checked_sub_t_uint256(x, y) -> diff\n    {\n        if lt(x, y) { panic_error_0x11() }\n        diff := sub(x, y)\n    }\n    function checked_sub_t_uint32(x, y) -> diff\n    {\n        let _1 := 0xffffffff\n        let x_1 := and(x, _1)\n        let y_1 := and(y, _1)\n        if lt(x_1, y_1) { panic_error_0x11() }\n        diff := sub(x_1, y_1)\n    }\n    function checked_sub_t_uint8(x, y) -> diff\n    {\n        let x_1 := and(x, 0xff)\n        let y_1 := and(y, 0xff)\n        if lt(x_1, y_1) { panic_error_0x11() }\n        diff := sub(x_1, y_1)\n    }\n    function copy_memory_to_memory(src, dst, length)\n    {\n        let i := 0\n        for { } lt(i, length) { i := add(i, 32) }\n        {\n            mstore(add(dst, i), mload(add(src, i)))\n        }\n        if gt(i, length) { mstore(add(dst, length), 0) }\n    }\n    function finalize_allocation(memPtr, size)\n    {\n        let newFreePtr := add(memPtr, and(add(size, 31), not(31)))\n        if or(gt(newFreePtr, 0xffffffffffffffff), lt(newFreePtr, memPtr))\n        {\n            mstore(0, shl(224, 0x4e487b71))\n            mstore(4, 0x41)\n            revert(0, 0x24)\n        }\n        mstore(64, newFreePtr)\n    }\n    function increment_t_uint32(value) -> ret\n    {\n        let _1 := 0xffffffff\n        let value_1 := and(value, _1)\n        if eq(value_1, _1) { panic_error_0x11() }\n        ret := add(value_1, 1)\n    }\n    function increment_t_uint8(value) -> ret\n    {\n        let value_1 := and(value, 0xff)\n        if eq(value_1, 0xff) { panic_error_0x11() }\n        ret := add(value_1, 1)\n    }\n    function mod_t_uint32(x, y) -> r\n    {\n        let _1 := 0xffffffff\n        let y_1 := and(y, _1)\n        if iszero(y_1) { panic_error_0x12() }\n        r := mod(and(x, _1), y_1)\n    }\n    function panic_error_0x11()\n    {\n        mstore(0, shl(224, 0x4e487b71))\n        mstore(4, 0x11)\n        revert(0, 0x24)\n    }\n    function panic_error_0x12()\n    {\n        mstore(0, shl(224, 0x4e487b71))\n        mstore(4, 0x12)\n        revert(0, 0x24)\n    }\n    function return_data_selector() -> sig\n    {\n        if gt(returndatasize(), 3)\n        {\n            returndatacopy(sig, sig, 4)\n            sig := shr(224, mload(sig))\n        }\n    }\n    function try_decode_error_message() -> ret\n    {\n        if lt(returndatasize(), 0x44) { leave }\n        let data := mload(64)\n        let _1 := not(3)\n        returndatacopy(data, 4, add(returndatasize(), _1))\n        let offset := mload(data)\n        let _2 := returndatasize()\n        let _3 := 0xffffffffffffffff\n        if or(gt(offset, _3), gt(add(offset, 0x24), _2)) { leave }\n        let msg := add(data, offset)\n        let length := mload(msg)\n        if gt(length, _3) { leave }\n        if gt(add(add(msg, length), 0x20), add(add(data, returndatasize()), _1)) { leave }\n        finalize_allocation(data, add(add(offset, length), 0x20))\n        ret := msg\n    }\n    function validator_revert_address(value)\n    {\n        if iszero(eq(value, and(value, sub(shl(160, 1), 1)))) { revert(0, 0) }\n    }\n    function validator_revert_bytes4(value)\n    {\n        if iszero(eq(value, and(value, shl(224, 0xffffffff)))) { revert(0, 0) }\n    }\n}",
+      "contents": "{\n    { }\n    function abi_decode_address(offset) -> value\n    {\n        value := calldataload(offset)\n        validator_revert_address(value)\n    }\n    function abi_decode_array_bytes32_dyn_calldata(offset, end) -> arrayPos, length\n    {\n        if iszero(slt(add(offset, 0x1f), end)) { revert(arrayPos, arrayPos) }\n        length := calldataload(offset)\n        if gt(length, 0xffffffffffffffff) { revert(arrayPos, arrayPos) }\n        arrayPos := add(offset, 0x20)\n        if gt(add(add(offset, shl(5, length)), 0x20), end) { revert(0, 0) }\n    }\n    function abi_decode_bytes_calldata(offset, end) -> arrayPos, length\n    {\n        if iszero(slt(add(offset, 0x1f), end)) { revert(arrayPos, arrayPos) }\n        length := calldataload(offset)\n        if gt(length, 0xffffffffffffffff) { revert(arrayPos, arrayPos) }\n        arrayPos := add(offset, 0x20)\n        if gt(add(add(offset, length), 0x20), end) { revert(0, 0) }\n    }\n    function abi_decode_enum_OperationType(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(lt(value, 8)) { revert(0, 0) }\n    }\n    function abi_decode_enum_TokenType(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(lt(value, 4)) { revert(0, 0) }\n    }\n    function abi_decode_uint32(offset) -> value\n    {\n        value := calldataload(offset)\n        if iszero(eq(value, and(value, 0xffffffff))) { revert(0, 0) }\n    }\n    function abi_decode_tuple_t_addresst_addresst_array$_t_uint256_$dyn_calldata_ptrt_array$_t_uint256_$dyn_calldata_ptrt_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5, value6, value7\n    {\n        if slt(sub(dataEnd, headStart), 160) { revert(value4, value4) }\n        let value := calldataload(headStart)\n        validator_revert_address(value)\n        value0 := value\n        let value_1 := calldataload(add(headStart, 32))\n        validator_revert_address(value_1)\n        value1 := value_1\n        let offset := calldataload(add(headStart, 64))\n        let _1 := 0xffffffffffffffff\n        if gt(offset, _1) { revert(value4, value4) }\n        let value2_1, value3_1 := abi_decode_array_bytes32_dyn_calldata(add(headStart, offset), dataEnd)\n        value2 := value2_1\n        value3 := value3_1\n        let offset_1 := calldataload(add(headStart, 96))\n        if gt(offset_1, _1) { revert(value4, value4) }\n        let value4_1, value5_1 := abi_decode_array_bytes32_dyn_calldata(add(headStart, offset_1), dataEnd)\n        value4 := value4_1\n        value5 := value5_1\n        let offset_2 := calldataload(add(headStart, 128))\n        if gt(offset_2, _1) { revert(value6, value6) }\n        let value6_1, value7_1 := abi_decode_bytes_calldata(add(headStart, offset_2), dataEnd)\n        value6 := value6_1\n        value7 := value7_1\n    }\n    function abi_decode_tuple_t_addresst_addresst_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4\n    {\n        if slt(sub(dataEnd, headStart), 128) { revert(value4, value4) }\n        let value := calldataload(headStart)\n        validator_revert_address(value)\n        value0 := value\n        let value_1 := calldataload(add(headStart, 32))\n        validator_revert_address(value_1)\n        value1 := value_1\n        value2 := calldataload(add(headStart, 64))\n        let offset := calldataload(add(headStart, 96))\n        if gt(offset, 0xffffffffffffffff) { revert(value4, value4) }\n        let value3_1, value4_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n        value3 := value3_1\n        value4 := value4_1\n    }\n    function abi_decode_tuple_t_addresst_addresst_uint256t_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5\n    {\n        if slt(sub(dataEnd, headStart), 160) { revert(value4, value4) }\n        let value := calldataload(headStart)\n        validator_revert_address(value)\n        value0 := value\n        let value_1 := calldataload(add(headStart, 32))\n        validator_revert_address(value_1)\n        value1 := value_1\n        value2 := calldataload(add(headStart, 64))\n        value3 := calldataload(add(headStart, 96))\n        let offset := calldataload(add(headStart, 128))\n        if gt(offset, 0xffffffffffffffff) { revert(value4, value4) }\n        let value4_1, value5_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n        value4 := value4_1\n        value5 := value5_1\n    }\n    function abi_decode_tuple_t_array$_t_bytes32_$dyn_calldata_ptrt_uint32t_bytes32t_enum$_OperationType_$493t_enum$_TokenType_$2627t_addresst_uint256t_address_payablet_uint256t_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3, value4, value5, value6, value7, value8, value9, value10, value11\n    {\n        if slt(sub(dataEnd, headStart), 320) { revert(value8, value8) }\n        if gt(calldataload(headStart), 0xffffffffffffffff) { revert(value8, value8) }\n        let value0_1, value1_1 := abi_decode_array_bytes32_dyn_calldata(add(headStart, calldataload(headStart)), dataEnd)\n        value0 := value0_1\n        value1 := value1_1\n        value2 := abi_decode_uint32(add(headStart, 32))\n        value3 := calldataload(add(headStart, 64))\n        value4 := abi_decode_enum_OperationType(add(headStart, 96))\n        value5 := abi_decode_enum_TokenType(add(headStart, 128))\n        value6 := abi_decode_address(add(headStart, 160))\n        value7 := calldataload(add(headStart, 192))\n        value8 := abi_decode_address(add(headStart, 224))\n        value9 := calldataload(add(headStart, 256))\n        if gt(calldataload(add(headStart, 288)), 0xffffffffffffffff) { revert(value11, value11) }\n        let value10_1, value11_1 := abi_decode_bytes_calldata(add(headStart, calldataload(add(headStart, 288))), dataEnd)\n        value10 := value10_1\n        value11 := value11_1\n    }\n    function abi_decode_tuple_t_bool_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := mload(headStart)\n        if iszero(eq(value, iszero(iszero(value)))) { revert(value0, value0) }\n        value0 := value\n    }\n    function abi_decode_tuple_t_bytes32(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        value0 := calldataload(headStart)\n    }\n    function abi_decode_tuple_t_bytes32_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        value0 := mload(headStart)\n    }\n    function abi_decode_tuple_t_bytes32t_bytes32t_bytes32(headStart, dataEnd) -> value0, value1, value2\n    {\n        if slt(sub(dataEnd, headStart), 96) { revert(value2, value2) }\n        value0 := calldataload(headStart)\n        value1 := calldataload(add(headStart, 32))\n        value2 := calldataload(add(headStart, 64))\n    }\n    function abi_decode_tuple_t_bytes4(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := calldataload(headStart)\n        validator_revert_bytes4(value)\n        value0 := value\n    }\n    function abi_decode_tuple_t_bytes4_fromMemory(headStart, dataEnd) -> value0\n    {\n        if slt(sub(dataEnd, headStart), 32) { revert(value0, value0) }\n        let value := mload(headStart)\n        validator_revert_bytes4(value)\n        value0 := value\n    }\n    function abi_encode_array_bool_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, iszero(iszero(mload(srcPtr))))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_array_bytes32_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, mload(srcPtr))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_array_uint32_dyn(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        let _1 := 0x20\n        pos := add(pos, _1)\n        let srcPtr := add(value, _1)\n        let i := end\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            mstore(pos, and(mload(srcPtr), 0xffffffff))\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        end := pos\n    }\n    function abi_encode_bytes_calldata(start, length, pos) -> end\n    {\n        mstore(pos, length)\n        calldatacopy(add(pos, 0x20), start, length)\n        mstore(add(add(pos, length), 0x20), end)\n        end := add(add(pos, and(add(length, 31), not(31))), 0x20)\n    }\n    function abi_encode_bytes(value, pos) -> end\n    {\n        let length := mload(value)\n        mstore(pos, length)\n        copy_memory_to_memory(add(value, 0x20), add(pos, 0x20), length)\n        end := add(add(pos, and(add(length, 31), not(31))), 0x20)\n    }\n    function abi_encode_enum_TokenType(value, pos)\n    {\n        if iszero(lt(value, 4))\n        {\n            mstore(0, shl(224, 0x4e487b71))\n            mstore(4, 0x21)\n            revert(0, 0x24)\n        }\n        mstore(pos, value)\n    }\n    function abi_encode_tuple_packed_t_bytes32__to_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value0) -> end\n    {\n        mstore(pos, value0)\n        end := add(pos, 32)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32__to_t_bytes32_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        end := add(pos, 64)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32_t_bytes32__to_t_bytes32_t_bytes32_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value2, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        mstore(add(pos, 64), value2)\n        end := add(pos, 96)\n    }\n    function abi_encode_tuple_packed_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes_calldata_ptr__to_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes32_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos, value7, value6, value5, value4, value3, value2, value1, value0) -> end\n    {\n        mstore(pos, value0)\n        mstore(add(pos, 32), value1)\n        mstore(add(pos, 64), value2)\n        mstore(add(pos, 96), value3)\n        mstore(add(pos, 128), value4)\n        mstore(add(pos, 160), value5)\n        calldatacopy(add(pos, 192), value6, value7)\n        let _1 := add(add(pos, value7), 192)\n        mstore(_1, end)\n        end := _1\n    }\n    function abi_encode_tuple_packed_t_bytes_calldata_ptr__to_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos, value1, value0) -> end\n    {\n        calldatacopy(pos, value0, value1)\n        let _1 := add(pos, value1)\n        mstore(_1, end)\n        end := _1\n    }\n    function abi_encode_tuple_packed_t_bytes_memory_ptr__to_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos, value0) -> end\n    {\n        let length := mload(value0)\n        copy_memory_to_memory(add(value0, 0x20), pos, length)\n        end := add(pos, length)\n    }\n    function abi_encode_tuple_packed_t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470__to_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos) -> end\n    { end := pos }\n    function abi_encode_tuple_t_address__to_t_address__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_address_payable__to_t_address__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_bytes_memory_ptr__to_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), 128)\n        tail := abi_encode_bytes(value3, add(headStart, 128))\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_uint256_t_bytes_calldata_ptr__to_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), value3)\n        mstore(add(headStart, 128), 160)\n        tail := abi_encode_bytes_calldata(value4, value5, add(headStart, 160))\n    }\n    function abi_encode_tuple_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__to_t_address_t_address_t_uint256_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        let _1 := sub(shl(160, 1), 1)\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), value3)\n        mstore(add(headStart, 128), 160)\n        tail := abi_encode_bytes(value4, add(headStart, 160))\n    }\n    function abi_encode_tuple_t_address_t_uint256__to_t_address_t_uint256__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, and(value0, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 32), value1)\n    }\n    function abi_encode_tuple_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__to_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        mstore(headStart, 160)\n        let tail_1 := abi_encode_array_bytes32_dyn(value0, add(headStart, 160))\n        mstore(add(headStart, 32), sub(tail_1, headStart))\n        let tail_2 := abi_encode_array_bytes32_dyn(value1, tail_1)\n        mstore(add(headStart, 64), sub(tail_2, headStart))\n        let tail_3 := abi_encode_array_bytes32_dyn(value2, tail_2)\n        mstore(add(headStart, 96), sub(tail_3, headStart))\n        let tail_4 := abi_encode_array_uint32_dyn(value3, tail_3)\n        mstore(add(headStart, 128), sub(tail_4, headStart))\n        tail := abi_encode_array_bool_dyn(value4, tail_4)\n    }\n    function abi_encode_tuple_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__to_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_bytes32_$dyn_memory_ptr_t_array$_t_uint32_$dyn_memory_ptr_t_array$_t_bool_$dyn_memory_ptr__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        mstore(headStart, 128)\n        let tail_1 := abi_encode_array_bytes32_dyn(value0, add(headStart, 128))\n        mstore(add(headStart, 32), sub(tail_1, headStart))\n        let tail_2 := abi_encode_array_bytes32_dyn(value1, tail_1)\n        mstore(add(headStart, 64), sub(tail_2, headStart))\n        let tail_3 := abi_encode_array_uint32_dyn(value2, tail_2)\n        mstore(add(headStart, 96), sub(tail_3, headStart))\n        tail := abi_encode_array_bool_dyn(value3, tail_3)\n    }\n    function abi_encode_tuple_t_array$_t_enum$_TokenType_$2627_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__to_t_array$_t_uint8_$dyn_memory_ptr_t_array$_t_address_$dyn_memory_ptr_t_array$_t_uint256_$dyn_memory_ptr__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        let tail_1 := add(headStart, 96)\n        mstore(headStart, 96)\n        let pos := tail_1\n        let length := mload(value0)\n        mstore(tail_1, length)\n        pos := add(headStart, 128)\n        let _1 := 0x20\n        let srcPtr := add(value0, _1)\n        let i := tail\n        for { } lt(i, length) { i := add(i, 1) }\n        {\n            abi_encode_enum_TokenType(mload(srcPtr), pos)\n            pos := add(pos, _1)\n            srcPtr := add(srcPtr, _1)\n        }\n        mstore(add(headStart, _1), sub(pos, headStart))\n        let pos_1 := pos\n        let length_1 := mload(value1)\n        mstore(pos, length_1)\n        pos_1 := add(pos, _1)\n        let srcPtr_1 := add(value1, _1)\n        let i_1 := tail\n        for { } lt(i_1, length_1) { i_1 := add(i_1, 1) }\n        {\n            mstore(pos_1, and(mload(srcPtr_1), sub(shl(160, 1), 1)))\n            pos_1 := add(pos_1, _1)\n            srcPtr_1 := add(srcPtr_1, _1)\n        }\n        mstore(add(headStart, 64), sub(pos_1, headStart))\n        tail := abi_encode_array_bytes32_dyn(value2, pos_1)\n    }\n    function abi_encode_tuple_t_bool__to_t_bool__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, iszero(iszero(value0)))\n    }\n    function abi_encode_tuple_t_bytes32_t_bytes32_t_uint32_t_bool__to_t_bytes32_t_bytes32_t_uint32_t_bool__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 128)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n        mstore(add(headStart, 64), and(value2, 0xffffffff))\n        mstore(add(headStart, 96), iszero(iszero(value3)))\n    }\n    function abi_encode_tuple_t_bytes32_t_uint8_t_uint8_t_uint32_t_uint32_t_uint8_t_address_t_uint256__to_t_bytes32_t_uint8_t_uint8_t_uint32_t_uint32_t_uint8_t_address_t_uint256__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 256)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), and(value1, 0xff))\n        mstore(add(headStart, 64), and(value2, 0xff))\n        let _1 := 0xffffffff\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), and(value5, 0xff))\n        mstore(add(headStart, 192), and(value6, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 224), value7)\n    }\n    function abi_encode_tuple_t_bytes4__to_t_bytes4__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, shl(224, 0xffffffff)))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2627_t_address_t_uint256__to_t_uint8_t_address_t_uint256__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 96)\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n        mstore(add(headStart, 64), value2)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2627_t_address_t_uint256_t_address_t_uint256__to_t_uint8_t_address_t_uint256_t_address_t_uint256__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 160)\n        abi_encode_enum_TokenType(value0, headStart)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), value4)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2627_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed(headStart, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), value4)\n        mstore(add(headStart, 160), 192)\n        tail := abi_encode_bytes(value5, add(headStart, 192))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2627_t_address_t_uint256_t_address_t_uint256_t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470__to_t_uint8_t_address_t_uint256_t_address_t_uint256_t_string_memory_ptr__fromStack_reversed(headStart, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 32), and(value1, _1))\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), value4)\n        mstore(add(headStart, 160), 192)\n        mstore(add(headStart, 192), tail)\n        tail := add(headStart, 224)\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2627_t_rational_1_by_1_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), value1)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 64), and(value2, _1))\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), value5)\n        mstore(add(headStart, 192), 224)\n        tail := abi_encode_bytes_calldata(value6, value7, add(headStart, 224))\n    }\n    function abi_encode_tuple_t_enum$_TokenType_$2627_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_calldata_ptr__to_t_uint8_t_uint256_t_address_t_address_t_address_t_uint256_t_bytes_memory_ptr__fromStack_reversed(headStart, value7, value6, value5, value4, value3, value2, value1, value0) -> tail\n    {\n        abi_encode_enum_TokenType(value0, headStart)\n        mstore(add(headStart, 32), value1)\n        let _1 := sub(shl(160, 1), 1)\n        mstore(add(headStart, 64), and(value2, _1))\n        mstore(add(headStart, 96), and(value3, _1))\n        mstore(add(headStart, 128), and(value4, _1))\n        mstore(add(headStart, 160), value5)\n        mstore(add(headStart, 192), 224)\n        tail := abi_encode_bytes_calldata(value6, value7, add(headStart, 224))\n    }\n    function abi_encode_tuple_t_stringliteral_0c1004916946b89dffc8743f953d4885accbd82403cd8bd9e53f384fa95731af__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 16)\n        mstore(add(headStart, 64), \"Too many commits\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_0d3a5f34c29e81aa7bbfe59ba3e3db3006ac807af6a54ad3cac7463abb5d83b0__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 13)\n        mstore(add(headStart, 64), \"Nonce too low\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_1c2d20c6fc3078eff495891b6caa29a7be172ac7018d2f6172fb68ba87240f3d__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 30)\n        mstore(add(headStart, 64), \"Last resort address is not set\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_286e638d23bc87ce733fb0202708f485eb6091553feef3d943a83966c37e7639__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"Reveal too late\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_2c594e135171cc6dc0d96175148636924623810d2d534a029b78044ab417d7d0__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 20)\n        mstore(add(headStart, 64), \"input bytes too long\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_2d6af051cc9bdd806c60b20e274721a89fb9a7025afbe00dde07d3201c4068b2__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 24)\n        mstore(add(headStart, 64), \"Commit already completed\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_3430d3063c70bc84041a3bb75a9010a8e7685d878f7521f09ab01e30ea2f9f24__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 23)\n        mstore(add(headStart, 64), \"Parameter hash mismatch\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_38f47be26bf822ff597a5cbffa2774ecae1ceaa169f734b7db0a07fb62c9547a__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"No commit found\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_50d19c134c4136d96b547b25b22aa8e1363529709733541230ebfa41cb82b262__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 19)\n        mstore(add(headStart, 64), \"Too early to retire\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_52d0f8312a7e3bda426de31c2e4c71a1ad4900f389f87f89d2a2eb06a0683b80__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 26)\n        mstore(add(headStart, 64), \"Index - timestamp mismatch\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_5515ff285a2022327bc0ffdc690388a3a1d15360640a68caecd56fe24371f01a__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 18)\n        mstore(add(headStart, 64), \"Proof is incorrect\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_791866c3f9c9c03c601447bf48dd4e0bd3f849759626f2144adccf6e77c6e64d__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 24)\n        mstore(add(headStart, 64), \"Invalid commit timestamp\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_7fb6a81bbdba15000418055bc5e058938e4fd0b50065d70de11ee03ca8f293e3__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 36)\n        mstore(add(headStart, 64), \"data must have length multiple t\")\n        mstore(add(headStart, 96), \"o 96\")\n        tail := add(headStart, 128)\n    }\n    function abi_encode_tuple_t_stringliteral_83d08d6dcf099c52fbe149a08cb4ffd65f3fec6dbf87dba7bc08b7a534982441__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 29)\n        mstore(add(headStart, 64), \"Not enough neighbors provided\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_887bc482e9abfdf76109db32e10c15ef35a028513416621efc881c8a92574313__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"Recovery failed\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_8a9c0db4284cd81d8eaef3d877f21bcccab643ae503f9d63f7eb3ad5aacbe749__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 19)\n        mstore(add(headStart, 64), \"Invalid commit hash\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_b20dc6ef8ce4f94dd03e7dbd2b41776293fb93e4528d85e98acf1bfed3136f73__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 10)\n        mstore(add(headStart, 64), \"Deprecated\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_bc3ff827c71f29679c970d77c58ec807a06259e86e9cd823a8554b04d0d6f030__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 34)\n        mstore(add(headStart, 64), \"Last resort address is already s\")\n        mstore(add(headStart, 96), \"et\")\n        tail := add(headStart, 128)\n    }\n    function abi_encode_tuple_t_stringliteral_c3972966c6b890cd04bd250ec8fd05d1950759334a3d8fa4e9bb3d0693e9952d__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 15)\n        mstore(add(headStart, 64), \"No valid commit\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_dd8f27f99c8575d947c48310b46d36796c8df82285fc83fecd33510610055413__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 19)\n        mstore(add(headStart, 64), \"Invalid commitIndex\")\n        tail := add(headStart, 96)\n    }\n    function abi_encode_tuple_t_stringliteral_fab9828a623b3dec5ff9fd3a2c3a6f583ee6577f264fc8a5c168e0454ba5a4ba__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n    {\n        mstore(headStart, 32)\n        mstore(add(headStart, 32), 35)\n        mstore(add(headStart, 64), \"Last operation reserved for reco\")\n        mstore(add(headStart, 96), \"ver\")\n        tail := add(headStart, 128)\n    }\n    function abi_encode_tuple_t_uint256_t_address__to_t_uint256_t_address__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint256_t_address_payable__to_t_uint256_t_address__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), and(value1, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint256_t_uint256__to_t_uint256_t_uint256__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n    }\n    function abi_encode_tuple_t_uint256_t_uint256_t_address_payable__to_t_uint256_t_uint256_t_address__fromStack_reversed(headStart, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 96)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n        mstore(add(headStart, 64), and(value2, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint256_t_uint256_t_uint256_t_address_payable__to_t_uint256_t_uint256_t_uint256_t_address__fromStack_reversed(headStart, value3, value2, value1, value0) -> tail\n    {\n        tail := add(headStart, 128)\n        mstore(headStart, value0)\n        mstore(add(headStart, 32), value1)\n        mstore(add(headStart, 64), value2)\n        mstore(add(headStart, 96), and(value3, sub(shl(160, 1), 1)))\n    }\n    function abi_encode_tuple_t_uint32_t_uint32__to_t_uint32_t_uint32__fromStack_reversed(headStart, value1, value0) -> tail\n    {\n        tail := add(headStart, 64)\n        let _1 := 0xffffffff\n        mstore(headStart, and(value0, _1))\n        mstore(add(headStart, 32), and(value1, _1))\n    }\n    function abi_encode_tuple_t_uint8__to_t_uint8__fromStack_reversed(headStart, value0) -> tail\n    {\n        tail := add(headStart, 32)\n        mstore(headStart, and(value0, 0xff))\n    }\n    function calldata_array_index_range_access_t_bytes_calldata_ptr(offset, length, startIndex, endIndex) -> offsetOut, lengthOut\n    {\n        if gt(startIndex, endIndex) { revert(offsetOut, offsetOut) }\n        if gt(endIndex, length) { revert(offsetOut, offsetOut) }\n        offsetOut := add(offset, startIndex)\n        lengthOut := sub(endIndex, startIndex)\n    }\n    function checked_add_t_uint256(x, y) -> sum\n    {\n        if gt(x, not(y)) { panic_error_0x11() }\n        sum := add(x, y)\n    }\n    function checked_add_t_uint32(x, y) -> sum\n    {\n        let _1 := 0xffffffff\n        let x_1 := and(x, _1)\n        let y_1 := and(y, _1)\n        if gt(x_1, sub(_1, y_1)) { panic_error_0x11() }\n        sum := add(x_1, y_1)\n    }\n    function checked_div_t_uint256(x, y) -> r\n    {\n        if iszero(y) { panic_error_0x12() }\n        r := div(x, y)\n    }\n    function checked_div_t_uint32(x, y) -> r\n    {\n        let _1 := 0xffffffff\n        let y_1 := and(y, _1)\n        if iszero(y_1) { panic_error_0x12() }\n        r := div(and(x, _1), y_1)\n    }\n    function checked_mul_t_uint256(x, y) -> product\n    {\n        if and(iszero(iszero(x)), gt(y, div(not(0), x))) { panic_error_0x11() }\n        product := mul(x, y)\n    }\n    function checked_mul_t_uint32(x, y) -> product\n    {\n        let _1 := 0xffffffff\n        let x_1 := and(x, _1)\n        let y_1 := and(y, _1)\n        if and(iszero(iszero(x_1)), gt(y_1, div(_1, x_1))) { panic_error_0x11() }\n        product := mul(x_1, y_1)\n    }\n    function checked_sub_t_uint256(x, y) -> diff\n    {\n        if lt(x, y) { panic_error_0x11() }\n        diff := sub(x, y)\n    }\n    function checked_sub_t_uint32(x, y) -> diff\n    {\n        let _1 := 0xffffffff\n        let x_1 := and(x, _1)\n        let y_1 := and(y, _1)\n        if lt(x_1, y_1) { panic_error_0x11() }\n        diff := sub(x_1, y_1)\n    }\n    function checked_sub_t_uint8(x, y) -> diff\n    {\n        let x_1 := and(x, 0xff)\n        let y_1 := and(y, 0xff)\n        if lt(x_1, y_1) { panic_error_0x11() }\n        diff := sub(x_1, y_1)\n    }\n    function copy_memory_to_memory(src, dst, length)\n    {\n        let i := 0\n        for { } lt(i, length) { i := add(i, 32) }\n        {\n            mstore(add(dst, i), mload(add(src, i)))\n        }\n        if gt(i, length) { mstore(add(dst, length), 0) }\n    }\n    function finalize_allocation(memPtr, size)\n    {\n        let newFreePtr := add(memPtr, and(add(size, 31), not(31)))\n        if or(gt(newFreePtr, 0xffffffffffffffff), lt(newFreePtr, memPtr))\n        {\n            mstore(0, shl(224, 0x4e487b71))\n            mstore(4, 0x41)\n            revert(0, 0x24)\n        }\n        mstore(64, newFreePtr)\n    }\n    function increment_t_uint32(value) -> ret\n    {\n        let _1 := 0xffffffff\n        let value_1 := and(value, _1)\n        if eq(value_1, _1) { panic_error_0x11() }\n        ret := add(value_1, 1)\n    }\n    function increment_t_uint8(value) -> ret\n    {\n        let value_1 := and(value, 0xff)\n        if eq(value_1, 0xff) { panic_error_0x11() }\n        ret := add(value_1, 1)\n    }\n    function mod_t_uint32(x, y) -> r\n    {\n        let _1 := 0xffffffff\n        let y_1 := and(y, _1)\n        if iszero(y_1) { panic_error_0x12() }\n        r := mod(and(x, _1), y_1)\n    }\n    function panic_error_0x11()\n    {\n        mstore(0, shl(224, 0x4e487b71))\n        mstore(4, 0x11)\n        revert(0, 0x24)\n    }\n    function panic_error_0x12()\n    {\n        mstore(0, shl(224, 0x4e487b71))\n        mstore(4, 0x12)\n        revert(0, 0x24)\n    }\n    function return_data_selector() -> sig\n    {\n        if gt(returndatasize(), 3)\n        {\n            returndatacopy(sig, sig, 4)\n            sig := shr(224, mload(sig))\n        }\n    }\n    function try_decode_error_message() -> ret\n    {\n        if lt(returndatasize(), 0x44) { leave }\n        let data := mload(64)\n        let _1 := not(3)\n        returndatacopy(data, 4, add(returndatasize(), _1))\n        let offset := mload(data)\n        let _2 := returndatasize()\n        let _3 := 0xffffffffffffffff\n        if or(gt(offset, _3), gt(add(offset, 0x24), _2)) { leave }\n        let msg := add(data, offset)\n        let length := mload(msg)\n        if gt(length, _3) { leave }\n        if gt(add(add(msg, length), 0x20), add(add(data, returndatasize()), _1)) { leave }\n        finalize_allocation(data, add(add(offset, length), 0x20))\n        ret := msg\n    }\n    function validator_revert_address(value)\n    {\n        if iszero(eq(value, and(value, sub(shl(160, 1), 1)))) { revert(0, 0) }\n    }\n    function validator_revert_bytes4(value)\n    {\n        if iszero(eq(value, and(value, shl(224, 0xffffffff)))) { revert(0, 0) }\n    }\n}",
       "id": 8,
       "language": "Yul",
       "name": "#utility.yul"
     }
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-  "source": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.4;\n\nimport \"./TokenTracker.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\ncontract ONEWallet is TokenTracker {\n    event InsufficientFund(uint256 amount, uint256 balance, address dest);\n    event ExceedDailyLimit(uint256 amount, uint256 limit, uint256 current, address dest);\n    event UnknownTransferError(address dest);\n    event LastResortAddressNotSet();\n    event PaymentReceived(uint256 amount, address from);\n    event PaymentSent(uint256 amount, address dest);\n    event AutoRecoveryTriggered(address from);\n    event RecoveryFailure();\n\n    /// In future versions, it is planned that we may allow the user to extend the wallet's life through a function call. When that is implemented, the following variables may no longer be immutable, with the exception of root which shall serve as an identifier of the wallet\n    bytes32 immutable root; // Note: @ivan brought up a good point in reducing this to 16-bytes so hash of two consecutive nodes can be done in a single word (to save gas and reduce blockchain clutter). Let's not worry about that for now and re-evalaute this later.\n    uint8 immutable height; // including the root. e.g. for a tree with 4 leaves, the height is 3.\n    uint8 immutable interval; // otp interval in seconds, default is 30\n    uint32 immutable t0; // starting time block (effectiveTime (in ms) / interval)\n    uint32 immutable lifespan;  // in number of block (e.g. 1 block per [interval] seconds)\n    uint8 immutable maxOperationsPerInterval; // number of transactions permitted per OTP interval. Each transaction shall have a unique nonce. The nonce is auto-incremented within each interval\n    uint32 immutable _numLeaves; // 2 ** (height - 1)\n\n    /// global mutable variables\n    address payable lastResortAddress; // where money will be sent during a recovery process (or when the wallet is beyond its lifespan)\n    uint256 dailyLimit; // uint128 is sufficient, but uint256 is more efficient since EVM works with 32-byte words.\n    uint256 spentToday; // note: instead of tracking the money spent for the last 24h, we are simply tracking money spent per 24h block based on UTC time. It is good enough for now, but we may want to change this later.\n    uint32 lastTransferDay;\n\n    /// nonce tracking\n    mapping(uint32 => uint8) nonces; // keys: otp index (=timestamp in seconds / interval - t0); values: the expected nonce for that otp interval. An reveal with a nonce less than the expected value will be rejected\n    uint32[] nonceTracker; // list of nonces keys that have a non-zero value. keys cannot possibly result a successful reveal (indices beyond REVEAL_MAX_DELAY old) are auto-deleted during a clean up procedure that is called every time the nonces are incremented for some key. For each deleted key, the corresponding key in nonces will also be deleted. So the size of nonceTracker and nonces are both bounded.\n\n    // constants\n    uint32 constant REVEAL_MAX_DELAY = 60;\n    uint32 constant SECONDS_PER_DAY = 86400;\n    uint256 constant AUTO_RECOVERY_TRIGGER_AMOUNT = 1 ether;\n    uint32 constant MAX_COMMIT_SIZE = 120;\n\n    uint32 constant majorVersion = 0x7; // a change would require client to migrate\n    uint32 constant minorVersion = 0x3; // a change would not require the client to migrate\n\n    enum OperationType {\n        TRACK, UNTRACK, TRANSFER_TOKEN, OVERRIDE_TRACK, TRANSFER, SET_RECOVERY_ADDRESS, RECOVER,\n        REPLACE // reserved, not implemented yet. This is for replacing the root and set up new parameters (t0, lifespan)\n    }\n    /// commit management\n    struct Commit {\n        bytes32 hash;\n        bytes32 paramsHash;\n        bytes32 verificationHash;\n        uint32 timestamp;\n        bool completed;\n    }\n\n    bytes32[] commits; // self-clean on commit (auto delete commits that are beyond REVEAL_MAX_DELAY), so it's bounded by the number of commits an attacker can spam within REVEAL_MAX_DELAY time in the worst case, which is not too bad.\n    mapping(bytes32 => Commit[]) commitLocker;\n\n\n    constructor(bytes32 root_, uint8 height_, uint8 interval_, uint32 t0_, uint32 lifespan_, uint8 maxOperationsPerInterval_,\n        address payable lastResortAddress_, uint256 dailyLimit_)\n    {\n        root = root_;\n        height = height_;\n        interval = interval_;\n        t0 = t0_;\n        lifespan = lifespan_;\n        lastResortAddress = lastResortAddress_;\n        dailyLimit = dailyLimit_;\n        maxOperationsPerInterval = maxOperationsPerInterval_;\n        _numLeaves = uint32(2 ** (height_ - 1));\n    }\n\n    receive() external payable {\n        emit PaymentReceived(msg.value, msg.sender);\n        if (msg.value != AUTO_RECOVERY_TRIGGER_AMOUNT) {\n            return;\n        }\n        if (msg.sender != lastResortAddress) {\n            return;\n        }\n        if (lastResortAddress == address(0)) {\n            return;\n        }\n        if (msg.sender == address(this)) {\n            return;\n        }\n        emit AutoRecoveryTriggered(msg.sender);\n        require(_drain());\n    }\n\n\n    function retire() external returns (bool)\n    {\n        require(uint32(block.timestamp / interval) - t0 > lifespan, \"Too early to retire\");\n        require(lastResortAddress != address(0), \"Last resort address is not set\");\n        require(_drain(), \"Recovery failed\");\n        return true;\n    }\n\n    function getInfo() external view returns (bytes32, uint8, uint8, uint32, uint32, uint8, address, uint256)\n    {\n        return (root, height, interval, t0, lifespan, maxOperationsPerInterval, lastResortAddress, dailyLimit);\n    }\n\n    function getVersion() external pure returns (uint32, uint32)\n    {\n        return (majorVersion, minorVersion);\n    }\n\n    function getCurrentSpending() external view returns (uint256, uint256)\n    {\n        return (spentToday, lastTransferDay);\n    }\n\n    function getNonce() external view returns (uint8)\n    {\n        uint32 index = uint32(block.timestamp) / interval - t0;\n        return nonces[index];\n    }\n\n    function getCommits() external pure returns (bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory){\n        revert(\"Deprecated\");\n    }\n\n    function getAllCommits() external view returns (bytes32[] memory, bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory)\n    {\n        uint32 numCommits = 0;\n        for (uint32 i = 0; i < commits.length; i++) {\n            Commit[] storage cc = commitLocker[commits[i]];\n            numCommits += uint32(cc.length);\n        }\n        bytes32[] memory hashes = new bytes32[](numCommits);\n        bytes32[] memory paramHashes = new bytes32[](numCommits);\n        bytes32[] memory verificationHashes = new bytes32[](numCommits);\n        uint32[] memory timestamps = new uint32[](numCommits);\n        bool[] memory completed = new bool[](numCommits);\n        uint32 index = 0;\n        for (uint32 i = 0; i < commits.length; i++) {\n            Commit[] storage cc = commitLocker[commits[i]];\n            for (uint32 j = 0; j < cc.length; j++) {\n                Commit storage c = cc[j];\n                hashes[index] = c.hash;\n                paramHashes[index] = c.paramsHash;\n                verificationHashes[index] = c.verificationHash;\n                timestamps[index] = c.timestamp;\n                completed[index] = c.completed;\n                index++;\n            }\n        }\n        return (hashes, paramHashes, verificationHashes, timestamps, completed);\n    }\n\n    function findCommit(bytes32 /*hash*/) external pure returns (bytes32, bytes32, uint32, bool){\n        revert(\"Deprecated\");\n    }\n\n    function lookupCommit(bytes32 hash) external view returns (bytes32[] memory, bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory){\n        Commit[] storage cc = commitLocker[hash];\n        bytes32[] memory hashes = new bytes32[](cc.length);\n        bytes32[] memory paramHashes = new bytes32[](cc.length);\n        bytes32[] memory verificationHashes = new bytes32[](cc.length);\n        uint32[] memory timestamps = new uint32[](cc.length);\n        bool[] memory completed = new bool[](cc.length);\n        for (uint32 i = 0; i < cc.length; i++) {\n            Commit storage c = cc[i];\n            hashes[i] = c.hash;\n            paramHashes[i] = c.paramsHash;\n            verificationHashes[i] = c.verificationHash;\n            timestamps[i] = c.timestamp;\n            completed[i] = c.completed;\n        }\n        return (hashes, paramHashes, verificationHashes, timestamps, completed);\n    }\n\n    function commit(bytes32 hash, bytes32 paramsHash, bytes32 verificationHash) external {\n        _cleanupCommits();\n        Commit memory nc = Commit(hash, paramsHash, verificationHash, uint32(block.timestamp), false);\n        require(commits.length < MAX_COMMIT_SIZE, \"Too many commits\");\n        commits.push(hash);\n        commitLocker[hash].push(nc);\n    }\n\n    /// This function sends all remaining funds of the wallet to `lastResortAddress`. The caller should verify that `lastResortAddress` is not null.\n    /// TODO: also transfer all tracked ERC20, 721, 1155 tokens to `lastResortAddress`\n    function _drain() internal returns (bool) {\n        // this may be triggered after revealing the proof, and we must prevent revert in all cases\n        (bool success,) = lastResortAddress.call{value : address(this).balance}(\"\");\n        return success;\n    }\n\n    function _transfer(address payable dest, uint256 amount) internal returns (bool) {\n        uint32 day = uint32(block.timestamp / SECONDS_PER_DAY);\n        if (day > lastTransferDay) {\n            spentToday = 0;\n            lastTransferDay = day;\n        }\n        if (spentToday + amount > dailyLimit) {\n            emit ExceedDailyLimit(amount, dailyLimit, spentToday, dest);\n            return false;\n        }\n        if (address(this).balance < amount) {\n            emit InsufficientFund(amount, address(this).balance, dest);\n            return false;\n        }\n        spentToday += amount;\n        (bool success,) = dest.call{value : amount}(\"\");\n        // we do not want to revert the whole transaction if this operation fails, since EOTP is already revealed\n        if (!success) {\n            spentToday -= amount;\n            emit UnknownTransferError(dest);\n            return false;\n        }\n\n        emit PaymentSent(amount, dest);\n        return true;\n    }\n\n    function _recover() internal returns (bool){\n        if (lastResortAddress == address(0)) {\n            emit LastResortAddressNotSet();\n            return false;\n        }\n        if (!_drain()) {\n            emit RecoveryFailure();\n            return false;\n        }\n        return true;\n    }\n\n    function _setRecoveryAddress(address payable lastResortAddress_) internal {\n        require(lastResortAddress == address(0), \"Last resort address is already set\");\n        lastResortAddress = lastResortAddress_;\n    }\n\n    function _transferToken(TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount, bytes memory data) internal {\n        if (tokenType == TokenType.ERC20) {\n            try IERC20(contractAddress).transfer(dest, amount) returns (bool success){\n                if (success) {\n                    _trackToken(tokenType, contractAddress, tokenId);\n                    emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n                    return;\n                }\n                emit TokenTransferFailed(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        } else if (tokenType == TokenType.ERC721) {\n            try IERC721(contractAddress).safeTransferFrom(address(this), dest, tokenId, data){\n                emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        } else if (tokenType == TokenType.ERC1155) {\n            try IERC1155(contractAddress).safeTransferFrom(address(this), dest, tokenId, amount, data) {\n                emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        }\n    }\n\n    /// Provides commitHash, paramsHash, and verificationHash given the parameters\n    function _getRevealHash(bytes32 neighbor, uint32 indexWithNonce, bytes32 eotp,\n        OperationType operationType, TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount, bytes calldata data) pure internal returns (bytes32, bytes32) {\n        bytes32 hash = keccak256(bytes.concat(neighbor, bytes32(bytes4(indexWithNonce)), eotp));\n        bytes32 paramsHash = bytes32(0);\n        if (operationType == OperationType.TRANSFER) {\n            paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest))), bytes32(amount)));\n        } else if (operationType == OperationType.RECOVER) {\n            paramsHash = keccak256(data);\n        } else if (operationType == OperationType.SET_RECOVERY_ADDRESS) {\n            paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest)))));\n        } else {\n            bytes memory packed = bytes.concat(\n                bytes32(uint256(operationType)),\n                bytes32(uint256(tokenType)),\n                bytes32(bytes20(contractAddress)),\n                bytes32(tokenId),\n                bytes32(bytes20(dest)),\n                bytes32(amount),\n                data\n            );\n            paramsHash = keccak256(bytes.concat(packed));\n        }\n        return (hash, paramsHash);\n    }\n\n\n    function reveal(bytes32[] calldata neighbors, uint32 indexWithNonce, bytes32 eotp,\n        OperationType operationType, TokenType tokenType, address contractAddress, uint256 tokenId, address payable dest, uint256 amount, bytes calldata data)\n    external {\n        _isCorrectProof(neighbors, indexWithNonce, eotp);\n        if (indexWithNonce == _numLeaves - 1) {\n            require(operationType == OperationType.RECOVER, \"Last operation reserved for recover\");\n        }\n        (bytes32 commitHash, bytes32 paramsHash) = _getRevealHash(neighbors[0], indexWithNonce, eotp,\n            operationType, tokenType, contractAddress, tokenId, dest, amount, data);\n        uint32 commitIndex = _verifyReveal(commitHash, indexWithNonce, paramsHash, eotp);\n        _completeReveal(commitHash, commitIndex);\n        // No revert should occur below this point\n        if (operationType == OperationType.TRACK) {\n            if (data.length > 0) {\n                _multiTrack(data);\n            } else {\n                _trackToken(tokenType, contractAddress, tokenId);\n            }\n        } else if (operationType == OperationType.UNTRACK) {\n            if (data.length > 0) {\n                _untrackToken(tokenType, contractAddress, tokenId);\n            } else {\n                _multiUntrack(data);\n            }\n        } else if (operationType == OperationType.TRANSFER_TOKEN) {\n            _transferToken(tokenType, contractAddress, tokenId, dest, amount, data);\n        } else if (operationType == OperationType.OVERRIDE_TRACK) {\n            _overrideTrackWithBytes(data);\n        } else if (operationType == OperationType.TRANSFER) {\n            _transfer(dest, amount);\n        } else if (operationType == OperationType.RECOVER) {\n            _recover();\n        } else if (operationType == OperationType.SET_RECOVERY_ADDRESS) {\n            _setRecoveryAddress(dest);\n        }\n    }\n\n    /// This is just a wrapper around a modifier previously called `isCorrectProof`, to avoid \"Stack too deep\" error. Duh.\n    function _isCorrectProof(bytes32[] calldata neighbors, uint32 position, bytes32 eotp) view internal {\n        require(neighbors.length == height - 1, \"Not enough neighbors provided\");\n        bytes32 h = sha256(bytes.concat(eotp));\n        if (position == _numLeaves - 1) {\n            // special case: recover only\n            h = eotp;\n        }\n        for (uint8 i = 0; i < height - 1; i++) {\n            if ((position & 0x01) == 0x01) {\n                h = sha256(bytes.concat(neighbors[i], h));\n            } else {\n                h = sha256(bytes.concat(h, neighbors[i]));\n            }\n            position >>= 1;\n        }\n        require(root == h, \"Proof is incorrect\");\n        return;\n    }\n\n    /// Remove old commits from storage, where the commit's timestamp is older than block.timestamp - REVEAL_MAX_DELAY. The purpose is to remove dangling data from blockchain, and prevent commits grow unbounded. This is executed at commit time. The committer pays for the gas of this cleanup. Therefore, any attacker who intend to spam commits would be disincentivized. The attacker would not succeed in preventing any normal operation by the user.\n    function _cleanupCommits() internal {\n        uint32 timelyIndex = 0;\n        uint32 bt = uint32(block.timestamp);\n        // go through past commits chronologically, starting from the oldest, and find the first commit that is not older than block.timestamp - REVEAL_MAX_DELAY.\n        for (; timelyIndex < commits.length; timelyIndex++) {\n            bytes32 hash = commits[timelyIndex];\n            Commit[] storage cc = commitLocker[hash];\n            // We may skip because the commit is already cleaned up and is considered \"untimely\".\n            if (cc.length == 0) {\n                continue;\n            }\n            // We take the first entry in `cc` as the timestamp for all commits under commit hash `hash`, because the first entry represents the oldest commit and only commit if an attacker is not attacking this wallet. If an attacker is front-running commits, the first entry may be from the attacker, but its timestamp should be identical to the user's commit (or close enough to the user's commit, if network is a bit congested)\n            Commit storage c = cc[0];\n        unchecked {\n            if (c.timestamp >= bt - REVEAL_MAX_DELAY) {\n                break;\n            }\n        }\n        }\n        // Now `timelyIndex` holds the index of the first commit that is timely. All commits at an index less than `timelyIndex` must be deleted;\n        if (timelyIndex == 0) {\n            // no commit is older than block.timestamp - REVEAL_MAX_DELAY. Nothing needs to be cleaned up\n            return;\n        }\n        // Delete Commit instances for commits that are are older than block.timestamp - REVEAL_MAX_DELAY\n        for (uint32 i = 0; i < timelyIndex; i++) {\n            bytes32 hash = commits[i];\n            Commit[] storage cc = commitLocker[hash];\n            for (uint32 j = 0; j < cc.length; j++) {\n                delete cc[j];\n            }\n            delete commitLocker[hash];\n        }\n        // Shift all commit hashes up by `timelyIndex` positions, and discard `commitIndex` number of hashes at the end of the array\n        // This process erases old commits\n        uint32 len = uint32(commits.length);\n        for (uint32 i = timelyIndex; i < len; i++) {\n        unchecked{\n            commits[i - timelyIndex] = commits[i];\n        }\n        }\n        for (uint32 i = 0; i < timelyIndex; i++) {\n            commits.pop();\n        }\n        // TODO (@polymorpher): upgrade the above code after solidity implements proper support for struct-array memory-storage copy operation.\n    }\n\n    function _isRevealTimely(uint32 commitTime) view internal returns (bool)\n    {\n        return uint32(block.timestamp) - commitTime < REVEAL_MAX_DELAY;\n    }\n\n    /// This function verifies that the first valid entry with respect to the given `eotp` in `commitLocker[hash]` matches the provided `paramsHash` and `verificationHash`. An entry is valid with respect to `eotp` iff `h3(entry.paramsHash . eotp)` equals `entry.verificationHash`\n    function _verifyReveal(bytes32 hash, uint32 indexWithNonce, bytes32 paramsHash, bytes32 eotp) view internal returns (uint32)\n    {\n        uint32 index = indexWithNonce / maxOperationsPerInterval;\n        uint8 nonce = uint8(indexWithNonce % maxOperationsPerInterval);\n        Commit[] storage cc = commitLocker[hash];\n        require(cc.length > 0, \"No commit found\");\n        for (uint32 i = 0; i < cc.length; i++) {\n            Commit storage c = cc[i];\n            bytes32 expectedVerificationHash = keccak256(bytes.concat(c.paramsHash, eotp));\n            if (c.verificationHash != expectedVerificationHash) {\n                // Invalid entry. Ignore\n                continue;\n            }\n            require(c.paramsHash == paramsHash, \"Parameter hash mismatch\");\n            uint32 counter = c.timestamp / interval - t0;\n            require(counter == index, \"Index - timestamp mismatch\");\n            uint8 expectedNonce = nonces[counter];\n            require(nonce >= expectedNonce, \"Nonce too low\");\n            require(!c.completed, \"Commit already completed\");\n            // This normally should not happen, but when the network is congested (regardless of whether due to an attacker's malicious acts or not), the legitimate reveal may become untimely. This may happen before the old commit is cleaned up by another fresh commit. We enforce this restriction so that the attacker would not have a lot of time to reverse-engineer a single EOTP or leaf using an old commit.\n            require(_isRevealTimely(c.timestamp), \"Reveal too late\");\n            return i;\n        }\n        revert(\"No valid commit\");\n    }\n\n    function _completeReveal(bytes32 commitHash, uint32 commitIndex) internal {\n        Commit[] storage cc = commitLocker[commitHash];\n        require(cc.length > 0, \"Invalid commit hash\");\n        require(cc.length > commitIndex, \"Invalid commitIndex\");\n        Commit storage c = cc[commitIndex];\n        require(c.timestamp > 0, \"Invalid commit timestamp\");\n        // should not happen\n        uint32 index = uint32(c.timestamp) / interval - t0;\n        _incrementNonce(index);\n        _cleanupNonces();\n        c.completed = true;\n    }\n\n    /// This function removes all tracked nonce values correspond to interval blocks that are older than block.timestamp - REVEAL_MAX_DELAY. In doing so, extraneous data in the blockchain is removed, and both nonces and nonceTracker are bounded in size.\n    function _cleanupNonces() internal {\n        uint32 tMin = uint32(block.timestamp) - REVEAL_MAX_DELAY;\n        uint32 indexMinUnadjusted = tMin / interval;\n        uint32 indexMin = 0;\n        if (indexMinUnadjusted > t0) {\n            indexMin = indexMinUnadjusted - t0;\n        }\n        uint32[] memory nonZeroNonces = new uint32[](nonceTracker.length);\n        uint32 numValidIndices = 0;\n        for (uint8 i = 0; i < nonceTracker.length; i++) {\n            uint32 index = nonceTracker[i];\n            if (index < indexMin) {\n                delete nonces[index];\n            } else {\n                nonZeroNonces[numValidIndices] = index;\n            unchecked {\n                numValidIndices++;\n            }\n            }\n        }\n        // TODO (@polymorpher): This can be later made more efficient by inline assembly. https://ethereum.stackexchange.com/questions/51891/how-to-pop-from-decrease-the-length-of-a-memory-array-in-solidity\n        uint32[] memory reducedArray = new uint32[](numValidIndices);\n        for (uint8 i = 0; i < numValidIndices; i++) {\n            reducedArray[i] = nonZeroNonces[i];\n        }\n        nonceTracker = reducedArray;\n    }\n\n    function _incrementNonce(uint32 index) internal {\n        uint8 v = nonces[index];\n        if (v == 0) {\n            nonceTracker.push(index);\n        }\n    unchecked{\n        nonces[index] = v + 1;\n    }\n    }\n}\n",
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+  "source": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.4;\n\nimport \"./TokenTracker.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\ncontract ONEWallet is TokenTracker {\n    event InsufficientFund(uint256 amount, uint256 balance, address dest);\n    event ExceedDailyLimit(uint256 amount, uint256 limit, uint256 current, address dest);\n    event UnknownTransferError(address dest);\n    event LastResortAddressNotSet();\n    event PaymentReceived(uint256 amount, address from);\n    event PaymentSent(uint256 amount, address dest);\n    event AutoRecoveryTriggered(address from);\n    event RecoveryFailure();\n\n    /// In future versions, it is planned that we may allow the user to extend the wallet's life through a function call. When that is implemented, the following variables may no longer be immutable, with the exception of root which shall serve as an identifier of the wallet\n    bytes32 immutable root; // Note: @ivan brought up a good point in reducing this to 16-bytes so hash of two consecutive nodes can be done in a single word (to save gas and reduce blockchain clutter). Let's not worry about that for now and re-evalaute this later.\n    uint8 immutable height; // including the root. e.g. for a tree with 4 leaves, the height is 3.\n    uint8 immutable interval; // otp interval in seconds, default is 30\n    uint32 immutable t0; // starting time block (effectiveTime (in ms) / interval)\n    uint32 immutable lifespan;  // in number of block (e.g. 1 block per [interval] seconds)\n    uint8 immutable maxOperationsPerInterval; // number of transactions permitted per OTP interval. Each transaction shall have a unique nonce. The nonce is auto-incremented within each interval\n    uint32 immutable _numLeaves; // 2 ** (height - 1)\n\n    /// global mutable variables\n    address payable lastResortAddress; // where money will be sent during a recovery process (or when the wallet is beyond its lifespan)\n    uint256 dailyLimit; // uint128 is sufficient, but uint256 is more efficient since EVM works with 32-byte words.\n    uint256 spentToday; // note: instead of tracking the money spent for the last 24h, we are simply tracking money spent per 24h block based on UTC time. It is good enough for now, but we may want to change this later.\n    uint32 lastTransferDay;\n\n    /// nonce tracking\n    mapping(uint32 => uint8) nonces; // keys: otp index (=timestamp in seconds / interval - t0); values: the expected nonce for that otp interval. An reveal with a nonce less than the expected value will be rejected\n    uint32[] nonceTracker; // list of nonces keys that have a non-zero value. keys cannot possibly result a successful reveal (indices beyond REVEAL_MAX_DELAY old) are auto-deleted during a clean up procedure that is called every time the nonces are incremented for some key. For each deleted key, the corresponding key in nonces will also be deleted. So the size of nonceTracker and nonces are both bounded.\n\n    // constants\n    uint32 constant REVEAL_MAX_DELAY = 60;\n    uint32 constant SECONDS_PER_DAY = 86400;\n    uint256 constant AUTO_RECOVERY_TRIGGER_AMOUNT = 1 ether;\n    uint32 constant MAX_COMMIT_SIZE = 120;\n\n    uint32 constant majorVersion = 0x7; // a change would require client to migrate\n    uint32 constant minorVersion = 0x3; // a change would not require the client to migrate\n\n    enum OperationType {\n        TRACK, UNTRACK, TRANSFER_TOKEN, OVERRIDE_TRACK, TRANSFER, SET_RECOVERY_ADDRESS, RECOVER,\n        REPLACE // reserved, not implemented yet. This is for replacing the root and set up new parameters (t0, lifespan)\n    }\n    /// commit management\n    struct Commit {\n        bytes32 hash;\n        bytes32 paramsHash;\n        bytes32 verificationHash;\n        uint32 timestamp;\n        bool completed;\n    }\n\n    bytes32[] commits; // self-clean on commit (auto delete commits that are beyond REVEAL_MAX_DELAY), so it's bounded by the number of commits an attacker can spam within REVEAL_MAX_DELAY time in the worst case, which is not too bad.\n    mapping(bytes32 => Commit[]) commitLocker;\n\n\n    constructor(bytes32 root_, uint8 height_, uint8 interval_, uint32 t0_, uint32 lifespan_, uint8 maxOperationsPerInterval_,\n        address payable lastResortAddress_, uint256 dailyLimit_)\n    {\n        root = root_;\n        height = height_;\n        interval = interval_;\n        t0 = t0_;\n        lifespan = lifespan_;\n        lastResortAddress = lastResortAddress_;\n        dailyLimit = dailyLimit_;\n        maxOperationsPerInterval = maxOperationsPerInterval_;\n        _numLeaves = uint32(2 ** (height_ - 1));\n    }\n\n    receive() external payable {\n        emit PaymentReceived(msg.value, msg.sender);\n        if (msg.value != AUTO_RECOVERY_TRIGGER_AMOUNT) {\n            return;\n        }\n        if (msg.sender != lastResortAddress) {\n            return;\n        }\n        if (lastResortAddress == address(0)) {\n            return;\n        }\n        if (msg.sender == address(this)) {\n            return;\n        }\n        emit AutoRecoveryTriggered(msg.sender);\n        require(_drain());\n    }\n\n\n    function retire() external returns (bool)\n    {\n        require(uint32(block.timestamp / interval) - t0 > lifespan, \"Too early to retire\");\n        require(lastResortAddress != address(0), \"Last resort address is not set\");\n        require(_drain(), \"Recovery failed\");\n        return true;\n    }\n\n    function getInfo() external view returns (bytes32, uint8, uint8, uint32, uint32, uint8, address, uint256)\n    {\n        return (root, height, interval, t0, lifespan, maxOperationsPerInterval, lastResortAddress, dailyLimit);\n    }\n\n    function getVersion() external pure returns (uint32, uint32)\n    {\n        return (majorVersion, minorVersion);\n    }\n\n    function getCurrentSpending() external view returns (uint256, uint256)\n    {\n        return (spentToday, lastTransferDay);\n    }\n\n    function getNonce() external view returns (uint8)\n    {\n        uint32 index = uint32(block.timestamp) / interval - t0;\n        return nonces[index];\n    }\n\n    function getCommits() external pure returns (bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory){\n        revert(\"Deprecated\");\n    }\n\n    function getAllCommits() external view returns (bytes32[] memory, bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory)\n    {\n        uint32 numCommits = 0;\n        for (uint32 i = 0; i < commits.length; i++) {\n            Commit[] storage cc = commitLocker[commits[i]];\n            numCommits += uint32(cc.length);\n        }\n        bytes32[] memory hashes = new bytes32[](numCommits);\n        bytes32[] memory paramHashes = new bytes32[](numCommits);\n        bytes32[] memory verificationHashes = new bytes32[](numCommits);\n        uint32[] memory timestamps = new uint32[](numCommits);\n        bool[] memory completed = new bool[](numCommits);\n        uint32 index = 0;\n        for (uint32 i = 0; i < commits.length; i++) {\n            Commit[] storage cc = commitLocker[commits[i]];\n            for (uint32 j = 0; j < cc.length; j++) {\n                Commit storage c = cc[j];\n                hashes[index] = c.hash;\n                paramHashes[index] = c.paramsHash;\n                verificationHashes[index] = c.verificationHash;\n                timestamps[index] = c.timestamp;\n                completed[index] = c.completed;\n                index++;\n            }\n        }\n        return (hashes, paramHashes, verificationHashes, timestamps, completed);\n    }\n\n    function findCommit(bytes32 /*hash*/) external pure returns (bytes32, bytes32, uint32, bool){\n        revert(\"Deprecated\");\n    }\n\n    function lookupCommit(bytes32 hash) external view returns (bytes32[] memory, bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory){\n        Commit[] storage cc = commitLocker[hash];\n        bytes32[] memory hashes = new bytes32[](cc.length);\n        bytes32[] memory paramHashes = new bytes32[](cc.length);\n        bytes32[] memory verificationHashes = new bytes32[](cc.length);\n        uint32[] memory timestamps = new uint32[](cc.length);\n        bool[] memory completed = new bool[](cc.length);\n        for (uint32 i = 0; i < cc.length; i++) {\n            Commit storage c = cc[i];\n            hashes[i] = c.hash;\n            paramHashes[i] = c.paramsHash;\n            verificationHashes[i] = c.verificationHash;\n            timestamps[i] = c.timestamp;\n            completed[i] = c.completed;\n        }\n        return (hashes, paramHashes, verificationHashes, timestamps, completed);\n    }\n\n    function commit(bytes32 hash, bytes32 paramsHash, bytes32 verificationHash) external {\n        _cleanupCommits();\n        Commit memory nc = Commit(hash, paramsHash, verificationHash, uint32(block.timestamp), false);\n        require(commits.length < MAX_COMMIT_SIZE, \"Too many commits\");\n        commits.push(hash);\n        commitLocker[hash].push(nc);\n    }\n\n    /// This function sends all remaining funds of the wallet to `lastResortAddress`. The caller should verify that `lastResortAddress` is not null.\n    /// TODO: also transfer all tracked ERC20, 721, 1155 tokens to `lastResortAddress`\n    function _drain() internal returns (bool) {\n        // this may be triggered after revealing the proof, and we must prevent revert in all cases\n        (bool success,) = lastResortAddress.call{value : address(this).balance}(\"\");\n        return success;\n    }\n\n    function _transfer(address payable dest, uint256 amount) internal returns (bool) {\n        uint32 day = uint32(block.timestamp / SECONDS_PER_DAY);\n        if (day > lastTransferDay) {\n            spentToday = 0;\n            lastTransferDay = day;\n        }\n        if (spentToday + amount > dailyLimit) {\n            emit ExceedDailyLimit(amount, dailyLimit, spentToday, dest);\n            return false;\n        }\n        if (address(this).balance < amount) {\n            emit InsufficientFund(amount, address(this).balance, dest);\n            return false;\n        }\n        spentToday += amount;\n        (bool success,) = dest.call{value : amount}(\"\");\n        // we do not want to revert the whole transaction if this operation fails, since EOTP is already revealed\n        if (!success) {\n            spentToday -= amount;\n            emit UnknownTransferError(dest);\n            return false;\n        }\n\n        emit PaymentSent(amount, dest);\n        return true;\n    }\n\n    function _recover() internal returns (bool){\n        if (lastResortAddress == address(0)) {\n            emit LastResortAddressNotSet();\n            return false;\n        }\n        if (!_drain()) {\n            emit RecoveryFailure();\n            return false;\n        }\n        return true;\n    }\n\n    function _setRecoveryAddress(address payable lastResortAddress_) internal {\n        require(lastResortAddress == address(0), \"Last resort address is already set\");\n        lastResortAddress = lastResortAddress_;\n    }\n\n    function _transferToken(TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount, bytes memory data) internal {\n        if (tokenType == TokenType.ERC20) {\n            try IERC20(contractAddress).transfer(dest, amount) returns (bool success){\n                if (success) {\n                    _trackToken(tokenType, contractAddress, tokenId);\n                    emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n                    return;\n                }\n                emit TokenTransferFailed(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        } else if (tokenType == TokenType.ERC721) {\n            try IERC721(contractAddress).safeTransferFrom(address(this), dest, tokenId, data){\n                emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        } else if (tokenType == TokenType.ERC1155) {\n            try IERC1155(contractAddress).safeTransferFrom(address(this), dest, tokenId, amount, data) {\n                emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        }\n    }\n\n    /// Provides commitHash, paramsHash, and verificationHash given the parameters\n    function _getRevealHash(bytes32 neighbor, uint32 indexWithNonce, bytes32 eotp,\n        OperationType operationType, TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount, bytes calldata data) pure internal returns (bytes32, bytes32) {\n        bytes32 hash = keccak256(bytes.concat(neighbor, bytes32(bytes4(indexWithNonce)), eotp));\n        bytes32 paramsHash = bytes32(0);\n        if (operationType == OperationType.TRANSFER) {\n            paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest))), bytes32(amount)));\n        } else if (operationType == OperationType.RECOVER) {\n            paramsHash = keccak256(data);\n        } else if (operationType == OperationType.SET_RECOVERY_ADDRESS) {\n            paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest)))));\n        } else {\n            bytes memory packed = bytes.concat(\n                bytes32(uint256(operationType)),\n                bytes32(uint256(tokenType)),\n                bytes32(bytes20(contractAddress)),\n                bytes32(tokenId),\n                bytes32(bytes20(dest)),\n                bytes32(amount),\n                data\n            );\n            paramsHash = keccak256(bytes.concat(packed));\n        }\n        return (hash, paramsHash);\n    }\n\n\n    function reveal(bytes32[] calldata neighbors, uint32 indexWithNonce, bytes32 eotp,\n        OperationType operationType, TokenType tokenType, address contractAddress, uint256 tokenId, address payable dest, uint256 amount, bytes calldata data)\n    external {\n        _isCorrectProof(neighbors, indexWithNonce, eotp);\n        if (indexWithNonce == _numLeaves - 1) {\n            require(operationType == OperationType.RECOVER, \"Last operation reserved for recover\");\n        }\n        (bytes32 commitHash, bytes32 paramsHash) = _getRevealHash(neighbors[0], indexWithNonce, eotp,\n            operationType, tokenType, contractAddress, tokenId, dest, amount, data);\n        uint32 commitIndex = _verifyReveal(commitHash, indexWithNonce, paramsHash, eotp, operationType);\n        _completeReveal(commitHash, commitIndex, operationType);\n        // No revert should occur below this point\n        if (operationType == OperationType.TRACK) {\n            if (data.length > 0) {\n                _multiTrack(data);\n            } else {\n                _trackToken(tokenType, contractAddress, tokenId);\n            }\n        } else if (operationType == OperationType.UNTRACK) {\n            if (data.length > 0) {\n                _untrackToken(tokenType, contractAddress, tokenId);\n            } else {\n                _multiUntrack(data);\n            }\n        } else if (operationType == OperationType.TRANSFER_TOKEN) {\n            _transferToken(tokenType, contractAddress, tokenId, dest, amount, data);\n        } else if (operationType == OperationType.OVERRIDE_TRACK) {\n            _overrideTrackWithBytes(data);\n        } else if (operationType == OperationType.TRANSFER) {\n            _transfer(dest, amount);\n        } else if (operationType == OperationType.RECOVER) {\n            _recover();\n        } else if (operationType == OperationType.SET_RECOVERY_ADDRESS) {\n            _setRecoveryAddress(dest);\n        }\n    }\n\n    /// This is just a wrapper around a modifier previously called `isCorrectProof`, to avoid \"Stack too deep\" error. Duh.\n    function _isCorrectProof(bytes32[] calldata neighbors, uint32 position, bytes32 eotp) view internal {\n        require(neighbors.length == height - 1, \"Not enough neighbors provided\");\n        bytes32 h = sha256(bytes.concat(eotp));\n        if (position == _numLeaves - 1) {\n            // special case: recover only\n            h = eotp;\n        }\n        for (uint8 i = 0; i < height - 1; i++) {\n            if ((position & 0x01) == 0x01) {\n                h = sha256(bytes.concat(neighbors[i], h));\n            } else {\n                h = sha256(bytes.concat(h, neighbors[i]));\n            }\n            position >>= 1;\n        }\n        require(root == h, \"Proof is incorrect\");\n        return;\n    }\n\n    /// Remove old commits from storage, where the commit's timestamp is older than block.timestamp - REVEAL_MAX_DELAY. The purpose is to remove dangling data from blockchain, and prevent commits grow unbounded. This is executed at commit time. The committer pays for the gas of this cleanup. Therefore, any attacker who intend to spam commits would be disincentivized. The attacker would not succeed in preventing any normal operation by the user.\n    function _cleanupCommits() internal {\n        uint32 timelyIndex = 0;\n        uint32 bt = uint32(block.timestamp);\n        // go through past commits chronologically, starting from the oldest, and find the first commit that is not older than block.timestamp - REVEAL_MAX_DELAY.\n        for (; timelyIndex < commits.length; timelyIndex++) {\n            bytes32 hash = commits[timelyIndex];\n            Commit[] storage cc = commitLocker[hash];\n            // We may skip because the commit is already cleaned up and is considered \"untimely\".\n            if (cc.length == 0) {\n                continue;\n            }\n            // We take the first entry in `cc` as the timestamp for all commits under commit hash `hash`, because the first entry represents the oldest commit and only commit if an attacker is not attacking this wallet. If an attacker is front-running commits, the first entry may be from the attacker, but its timestamp should be identical to the user's commit (or close enough to the user's commit, if network is a bit congested)\n            Commit storage c = cc[0];\n        unchecked {\n            if (c.timestamp >= bt - REVEAL_MAX_DELAY) {\n                break;\n            }\n        }\n        }\n        // Now `timelyIndex` holds the index of the first commit that is timely. All commits at an index less than `timelyIndex` must be deleted;\n        if (timelyIndex == 0) {\n            // no commit is older than block.timestamp - REVEAL_MAX_DELAY. Nothing needs to be cleaned up\n            return;\n        }\n        // Delete Commit instances for commits that are are older than block.timestamp - REVEAL_MAX_DELAY\n        for (uint32 i = 0; i < timelyIndex; i++) {\n            bytes32 hash = commits[i];\n            Commit[] storage cc = commitLocker[hash];\n            for (uint32 j = 0; j < cc.length; j++) {\n                delete cc[j];\n            }\n            delete commitLocker[hash];\n        }\n        // Shift all commit hashes up by `timelyIndex` positions, and discard `commitIndex` number of hashes at the end of the array\n        // This process erases old commits\n        uint32 len = uint32(commits.length);\n        for (uint32 i = timelyIndex; i < len; i++) {\n        unchecked{\n            commits[i - timelyIndex] = commits[i];\n        }\n        }\n        for (uint32 i = 0; i < timelyIndex; i++) {\n            commits.pop();\n        }\n        // TODO (@polymorpher): upgrade the above code after solidity implements proper support for struct-array memory-storage copy operation.\n    }\n\n    function _isRevealTimely(uint32 commitTime) view internal returns (bool)\n    {\n        return uint32(block.timestamp) - commitTime < REVEAL_MAX_DELAY;\n    }\n\n    /// This function verifies that the first valid entry with respect to the given `eotp` in `commitLocker[hash]` matches the provided `paramsHash` and `verificationHash`. An entry is valid with respect to `eotp` iff `h3(entry.paramsHash . eotp)` equals `entry.verificationHash`\n    function _verifyReveal(bytes32 hash, uint32 indexWithNonce, bytes32 paramsHash, bytes32 eotp, OperationType operationType) view internal returns (uint32)\n    {\n        uint32 index = indexWithNonce / maxOperationsPerInterval;\n        uint8 nonce = uint8(indexWithNonce % maxOperationsPerInterval);\n        Commit[] storage cc = commitLocker[hash];\n        require(cc.length > 0, \"No commit found\");\n        for (uint32 i = 0; i < cc.length; i++) {\n            Commit storage c = cc[i];\n            bytes32 expectedVerificationHash = keccak256(bytes.concat(c.paramsHash, eotp));\n            if (c.verificationHash != expectedVerificationHash) {\n                // Invalid entry. Ignore\n                continue;\n            }\n            require(c.paramsHash == paramsHash, \"Parameter hash mismatch\");\n            if (operationType != OperationType.RECOVER) {\n                uint32 counter = c.timestamp / interval - t0;\n                require(counter == index, \"Index - timestamp mismatch\");\n                uint8 expectedNonce = nonces[counter];\n                require(nonce >= expectedNonce, \"Nonce too low\");\n            }\n            require(!c.completed, \"Commit already completed\");\n            // This normally should not happen, but when the network is congested (regardless of whether due to an attacker's malicious acts or not), the legitimate reveal may become untimely. This may happen before the old commit is cleaned up by another fresh commit. We enforce this restriction so that the attacker would not have a lot of time to reverse-engineer a single EOTP or leaf using an old commit.\n            require(_isRevealTimely(c.timestamp), \"Reveal too late\");\n            return i;\n        }\n        revert(\"No valid commit\");\n    }\n\n    function _completeReveal(bytes32 commitHash, uint32 commitIndex, OperationType operationType) internal {\n        Commit[] storage cc = commitLocker[commitHash];\n        require(cc.length > 0, \"Invalid commit hash\");\n        require(cc.length > commitIndex, \"Invalid commitIndex\");\n        Commit storage c = cc[commitIndex];\n        require(c.timestamp > 0, \"Invalid commit timestamp\");\n        if (operationType != OperationType.RECOVER) {\n            uint32 index = uint32(c.timestamp) / interval - t0;\n            _incrementNonce(index);\n            _cleanupNonces();\n        }\n        c.completed = true;\n    }\n\n    /// This function removes all tracked nonce values correspond to interval blocks that are older than block.timestamp - REVEAL_MAX_DELAY. In doing so, extraneous data in the blockchain is removed, and both nonces and nonceTracker are bounded in size.\n    function _cleanupNonces() internal {\n        uint32 tMin = uint32(block.timestamp) - REVEAL_MAX_DELAY;\n        uint32 indexMinUnadjusted = tMin / interval;\n        uint32 indexMin = 0;\n        if (indexMinUnadjusted > t0) {\n            indexMin = indexMinUnadjusted - t0;\n        }\n        uint32[] memory nonZeroNonces = new uint32[](nonceTracker.length);\n        uint32 numValidIndices = 0;\n        for (uint8 i = 0; i < nonceTracker.length; i++) {\n            uint32 index = nonceTracker[i];\n            if (index < indexMin) {\n                delete nonces[index];\n            } else {\n                nonZeroNonces[numValidIndices] = index;\n            unchecked {\n                numValidIndices++;\n            }\n            }\n        }\n        // TODO (@polymorpher): This can be later made more efficient by inline assembly. https://ethereum.stackexchange.com/questions/51891/how-to-pop-from-decrease-the-length-of-a-memory-array-in-solidity\n        uint32[] memory reducedArray = new uint32[](numValidIndices);\n        for (uint8 i = 0; i < numValidIndices; i++) {\n            reducedArray[i] = nonZeroNonces[i];\n        }\n        nonceTracker = reducedArray;\n    }\n\n    function _incrementNonce(uint32 index) internal {\n        uint8 v = nonces[index];\n        if (v == 0) {\n            nonceTracker.push(index);\n        }\n    unchecked{\n        nonces[index] = v + 1;\n    }\n    }\n}\n",
   "sourcePath": "/Users/polymorpher/git/one-wallet/code/contracts/ONEWallet.sol",
   "ast": {
     "absolutePath": "project:/contracts/ONEWallet.sol",
@@ -27989,13 +27989,13 @@
         374
       ],
       "ONEWallet": [
-        2592
+        2612
       ],
       "TokenTracker": [
-        3860
+        3880
       ]
     },
-    "id": 2593,
+    "id": 2613,
     "license": "Apache-2.0",
     "nodeType": "SourceUnit",
     "nodes": [
@@ -28016,8 +28016,8 @@
         "id": 389,
         "nameLocation": "-1:-1:-1",
         "nodeType": "ImportDirective",
-        "scope": 2593,
-        "sourceUnit": 3861,
+        "scope": 2613,
+        "sourceUnit": 3881,
         "src": "64:28:6",
         "symbolAliases": [],
         "unitAlias": ""
@@ -28028,7 +28028,7 @@
         "id": 390,
         "nameLocation": "-1:-1:-1",
         "nodeType": "ImportDirective",
-        "scope": 2593,
+        "scope": 2613,
         "sourceUnit": 241,
         "src": "93:56:6",
         "symbolAliases": [],
@@ -28042,7 +28042,7 @@
               "id": 391,
               "name": "TokenTracker",
               "nodeType": "IdentifierPath",
-              "referencedDeclaration": 3860,
+              "referencedDeclaration": 3880,
               "src": "173:12:6"
             },
             "id": 392,
@@ -28053,10 +28053,10 @@
         "contractDependencies": [],
         "contractKind": "contract",
         "fullyImplemented": true,
-        "id": 2592,
+        "id": 2612,
         "linearizedBaseContracts": [
-          2592,
-          3860,
+          2612,
+          3880,
           162,
           386,
           374
@@ -28566,7 +28566,7 @@
             "name": "root",
             "nameLocation": "921:4:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "903:22:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -28593,7 +28593,7 @@
             "name": "height",
             "nameLocation": "1185:6:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "1169:22:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -28620,7 +28620,7 @@
             "name": "interval",
             "nameLocation": "1284:8:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "1268:24:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -28647,7 +28647,7 @@
             "name": "t0",
             "nameLocation": "1357:2:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "1340:19:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -28674,7 +28674,7 @@
             "name": "lifespan",
             "nameLocation": "1440:8:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "1423:25:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -28701,7 +28701,7 @@
             "name": "maxOperationsPerInterval",
             "nameLocation": "1531:24:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "1515:40:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -28728,7 +28728,7 @@
             "name": "_numLeaves",
             "nameLocation": "1727:10:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "1710:27:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -28761,7 +28761,7 @@
             "name": "lastResortAddress",
             "nameLocation": "1814:17:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "1798:33:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -28789,7 +28789,7 @@
             "name": "dailyLimit",
             "nameLocation": "1943:10:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "1935:18:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -28816,7 +28816,7 @@
             "name": "spentToday",
             "nameLocation": "2059:10:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "2051:18:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -28843,7 +28843,7 @@
             "name": "lastTransferDay",
             "nameLocation": "2278:15:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "2271:22:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -28876,7 +28876,7 @@
             "name": "nonces",
             "nameLocation": "2348:6:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "2323:31:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -28922,7 +28922,7 @@
             "name": "nonceTracker",
             "nameLocation": "2548:12:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "2539:21:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -28958,7 +28958,7 @@
             "name": "REVEAL_MAX_DELAY",
             "nameLocation": "2982:16:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "2966:37:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -29001,7 +29001,7 @@
             "name": "SECONDS_PER_DAY",
             "nameLocation": "3025:15:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "3009:39:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -29044,7 +29044,7 @@
             "name": "AUTO_RECOVERY_TRIGGER_AMOUNT",
             "nameLocation": "3071:28:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "3054:55:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -29088,7 +29088,7 @@
             "name": "MAX_COMMIT_SIZE",
             "nameLocation": "3131:15:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "3115:37:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -29131,7 +29131,7 @@
             "name": "majorVersion",
             "nameLocation": "3175:12:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "3159:34:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -29174,7 +29174,7 @@
             "name": "minorVersion",
             "nameLocation": "3259:12:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "3243:34:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -29419,7 +29419,7 @@
             "name": "Commit",
             "nameLocation": "3619:6:6",
             "nodeType": "StructDefinition",
-            "scope": 2592,
+            "scope": 2612,
             "src": "3612:155:6",
             "visibility": "public"
           },
@@ -29430,7 +29430,7 @@
             "name": "commits",
             "nameLocation": "3783:7:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "3773:17:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -29466,7 +29466,7 @@
             "name": "commitLocker",
             "nameLocation": "4037:12:6",
             "nodeType": "VariableDeclaration",
-            "scope": 2592,
+            "scope": 2612,
             "src": "4008:41:6",
             "stateVariable": true,
             "storageLocation": "default",
@@ -30281,7 +30281,7 @@
               "parameters": [],
               "src": "4248:0:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "4057:517:6",
             "stateMutability": "nonpayable",
             "virtual": false,
@@ -30695,7 +30695,7 @@
                           "referencedDeclaration": 4294967268,
                           "src": "4937:4:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                            "typeIdentifier": "t_contract$_ONEWallet_$2612",
                             "typeString": "contract ONEWallet"
                           }
                         }
@@ -30703,7 +30703,7 @@
                       "expression": {
                         "argumentTypes": [
                           {
-                            "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                            "typeIdentifier": "t_contract$_ONEWallet_$2612",
                             "typeString": "contract ONEWallet"
                           }
                         ],
@@ -30926,7 +30926,7 @@
               "parameters": [],
               "src": "4607:0:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "4580:476:6",
             "stateMutability": "payable",
             "virtual": false,
@@ -31482,7 +31482,7 @@
               ],
               "src": "5098:6:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "5063:296:6",
             "stateMutability": "nonpayable",
             "virtual": false,
@@ -31852,7 +31852,7 @@
               ],
               "src": "5406:64:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "5365:229:6",
             "stateMutability": "view",
             "virtual": false,
@@ -31987,7 +31987,7 @@
               ],
               "src": "5644:16:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "5600:117:6",
             "stateMutability": "pure",
             "virtual": false,
@@ -32122,7 +32122,7 @@
               ],
               "src": "5775:18:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "5723:128:6",
             "stateMutability": "view",
             "virtual": false,
@@ -32394,7 +32394,7 @@
               ],
               "src": "5899:7:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "5857:155:6",
             "stateMutability": "view",
             "virtual": false,
@@ -32633,7 +32633,7 @@
               ],
               "src": "6062:68:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "6018:149:6",
             "stateMutability": "pure",
             "virtual": false,
@@ -34924,7 +34924,7 @@
               ],
               "src": "6220:86:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "6173:1283:6",
             "stateMutability": "view",
             "virtual": false,
@@ -35155,7 +35155,7 @@
               ],
               "src": "7522:32:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "7462:129:6",
             "stateMutability": "pure",
             "virtual": false,
@@ -36859,7 +36859,7 @@
               ],
               "src": "7655:86:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "7597:907:6",
             "stateMutability": "view",
             "virtual": false,
@@ -36880,7 +36880,7 @@
                       "name": "_cleanupCommits",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2197,
+                      "referencedDeclaration": 2199,
                       "src": "8605:15:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_internal_nonpayable$__$returns$__$",
@@ -37507,7 +37507,7 @@
               "parameters": [],
               "src": "8595:0:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "8510:358:6",
             "stateMutability": "nonpayable",
             "virtual": false,
@@ -37634,7 +37634,7 @@
                                 "referencedDeclaration": 4294967268,
                                 "src": "9319:4:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                                  "typeIdentifier": "t_contract$_ONEWallet_$2612",
                                   "typeString": "contract ONEWallet"
                                 }
                               }
@@ -37642,7 +37642,7 @@
                             "expression": {
                               "argumentTypes": [
                                 {
-                                  "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                                  "typeIdentifier": "t_contract$_ONEWallet_$2612",
                                   "typeString": "contract ONEWallet"
                                 }
                               ],
@@ -37791,7 +37791,7 @@
               ],
               "src": "9145:6:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "9110:258:6",
             "stateMutability": "nonpayable",
             "virtual": false,
@@ -38313,7 +38313,7 @@
                             "referencedDeclaration": 4294967268,
                             "src": "9808:4:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                              "typeIdentifier": "t_contract$_ONEWallet_$2612",
                               "typeString": "contract ONEWallet"
                             }
                           }
@@ -38321,7 +38321,7 @@
                         "expression": {
                           "argumentTypes": [
                             {
-                              "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                              "typeIdentifier": "t_contract$_ONEWallet_$2612",
                               "typeString": "contract ONEWallet"
                             }
                           ],
@@ -38426,7 +38426,7 @@
                                     "referencedDeclaration": 4294967268,
                                     "src": "9884:4:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2612",
                                       "typeString": "contract ONEWallet"
                                     }
                                   }
@@ -38434,7 +38434,7 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2612",
                                       "typeString": "contract ONEWallet"
                                     }
                                   ],
@@ -39105,7 +39105,7 @@
               ],
               "src": "9448:6:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "9374:975:6",
             "stateMutability": "nonpayable",
             "virtual": false,
@@ -39461,7 +39461,7 @@
               ],
               "src": "10392:6:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "10355:295:6",
             "stateMutability": "nonpayable",
             "virtual": false,
@@ -39720,7 +39720,7 @@
               "parameters": [],
               "src": "10730:0:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "10656:217:6",
             "stateMutability": "nonpayable",
             "virtual": false,
@@ -39735,7 +39735,7 @@
                 {
                   "condition": {
                     "commonType": {
-                      "typeIdentifier": "t_enum$_TokenType_$2607",
+                      "typeIdentifier": "t_enum$_TokenType_$2627",
                       "typeString": "enum TokenTracker.TokenType"
                     },
                     "id": 1384,
@@ -39751,7 +39751,7 @@
                       "referencedDeclaration": 1368,
                       "src": "11038:9:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_TokenType_$2607",
+                        "typeIdentifier": "t_enum$_TokenType_$2627",
                         "typeString": "enum TokenTracker.TokenType"
                       }
                     },
@@ -39763,10 +39763,10 @@
                         "name": "TokenType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2607,
+                        "referencedDeclaration": 2627,
                         "src": "11051:9:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
+                          "typeIdentifier": "t_type$_t_enum$_TokenType_$2627_$",
                           "typeString": "type(enum TokenTracker.TokenType)"
                         }
                       },
@@ -39777,10 +39777,10 @@
                       "lValueRequested": false,
                       "memberName": "ERC20",
                       "nodeType": "MemberAccess",
-                      "referencedDeclaration": 2603,
+                      "referencedDeclaration": 2623,
                       "src": "11051:15:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_TokenType_$2607",
+                        "typeIdentifier": "t_enum$_TokenType_$2627",
                         "typeString": "enum TokenTracker.TokenType"
                       }
                     },
@@ -39793,7 +39793,7 @@
                   "falseBody": {
                     "condition": {
                       "commonType": {
-                        "typeIdentifier": "t_enum$_TokenType_$2607",
+                        "typeIdentifier": "t_enum$_TokenType_$2627",
                         "typeString": "enum TokenTracker.TokenType"
                       },
                       "id": 1453,
@@ -39809,7 +39809,7 @@
                         "referencedDeclaration": 1368,
                         "src": "11797:9:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                          "typeIdentifier": "t_enum$_TokenType_$2627",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
@@ -39821,10 +39821,10 @@
                           "name": "TokenType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2607,
+                          "referencedDeclaration": 2627,
                           "src": "11810:9:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
+                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2627_$",
                             "typeString": "type(enum TokenTracker.TokenType)"
                           }
                         },
@@ -39835,10 +39835,10 @@
                         "lValueRequested": false,
                         "memberName": "ERC721",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 2604,
+                        "referencedDeclaration": 2624,
                         "src": "11810:16:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                          "typeIdentifier": "t_enum$_TokenType_$2627",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
@@ -39851,7 +39851,7 @@
                     "falseBody": {
                       "condition": {
                         "commonType": {
-                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                          "typeIdentifier": "t_enum$_TokenType_$2627",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         "id": 1506,
@@ -39867,7 +39867,7 @@
                           "referencedDeclaration": 1368,
                           "src": "12321:9:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                            "typeIdentifier": "t_enum$_TokenType_$2627",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
@@ -39879,10 +39879,10 @@
                             "name": "TokenType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2607,
+                            "referencedDeclaration": 2627,
                             "src": "12334:9:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
+                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2627_$",
                               "typeString": "type(enum TokenTracker.TokenType)"
                             }
                           },
@@ -39893,10 +39893,10 @@
                           "lValueRequested": false,
                           "memberName": "ERC1155",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2605,
+                          "referencedDeclaration": 2625,
                           "src": "12334:17:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                            "typeIdentifier": "t_enum$_TokenType_$2627",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
@@ -39933,7 +39933,7 @@
                                             "referencedDeclaration": 1368,
                                             "src": "12504:9:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_enum$_TokenType_$2607",
+                                              "typeIdentifier": "t_enum$_TokenType_$2627",
                                               "typeString": "enum TokenTracker.TokenType"
                                             }
                                           },
@@ -39989,7 +39989,7 @@
                                         "expression": {
                                           "argumentTypes": [
                                             {
-                                              "typeIdentifier": "t_enum$_TokenType_$2607",
+                                              "typeIdentifier": "t_enum$_TokenType_$2627",
                                               "typeString": "enum TokenTracker.TokenType"
                                             },
                                             {
@@ -40013,10 +40013,10 @@
                                           "name": "TokenTransferSucceeded",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2692,
+                                          "referencedDeclaration": 2712,
                                           "src": "12481:22:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                             "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                           }
                                         },
@@ -40063,7 +40063,7 @@
                                             "referencedDeclaration": 1368,
                                             "src": "12645:9:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_enum$_TokenType_$2607",
+                                              "typeIdentifier": "t_enum$_TokenType_$2627",
                                               "typeString": "enum TokenTracker.TokenType"
                                             }
                                           },
@@ -40131,7 +40131,7 @@
                                         "expression": {
                                           "argumentTypes": [
                                             {
-                                              "typeIdentifier": "t_enum$_TokenType_$2607",
+                                              "typeIdentifier": "t_enum$_TokenType_$2627",
                                               "typeString": "enum TokenTracker.TokenType"
                                             },
                                             {
@@ -40159,10 +40159,10 @@
                                           "name": "TokenTransferError",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2679,
+                                          "referencedDeclaration": 2699,
                                           "src": "12626:18:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                             "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                           }
                                         },
@@ -40243,7 +40243,7 @@
                                             "referencedDeclaration": 1368,
                                             "src": "12767:9:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_enum$_TokenType_$2607",
+                                              "typeIdentifier": "t_enum$_TokenType_$2627",
                                               "typeString": "enum TokenTracker.TokenType"
                                             }
                                           },
@@ -40315,7 +40315,7 @@
                                         "expression": {
                                           "argumentTypes": [
                                             {
-                                              "typeIdentifier": "t_enum$_TokenType_$2607",
+                                              "typeIdentifier": "t_enum$_TokenType_$2627",
                                               "typeString": "enum TokenTracker.TokenType"
                                             },
                                             {
@@ -40343,10 +40343,10 @@
                                           "name": "TokenTransferError",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2679,
+                                          "referencedDeclaration": 2699,
                                           "src": "12748:18:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                             "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                           }
                                         },
@@ -40389,7 +40389,7 @@
                                       "referencedDeclaration": 4294967268,
                                       "src": "12422:4:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                                        "typeIdentifier": "t_contract$_ONEWallet_$2612",
                                         "typeString": "contract ONEWallet"
                                       }
                                     }
@@ -40397,7 +40397,7 @@
                                   "expression": {
                                     "argumentTypes": [
                                       {
-                                        "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                                        "typeIdentifier": "t_contract$_ONEWallet_$2612",
                                         "typeString": "contract ONEWallet"
                                       }
                                     ],
@@ -40618,7 +40618,7 @@
                                           "referencedDeclaration": 1368,
                                           "src": "11969:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         },
@@ -40674,7 +40674,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           },
                                           {
@@ -40698,10 +40698,10 @@
                                         "name": "TokenTransferSucceeded",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2692,
+                                        "referencedDeclaration": 2712,
                                         "src": "11946:22:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                           "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                         }
                                       },
@@ -40748,7 +40748,7 @@
                                           "referencedDeclaration": 1368,
                                           "src": "12110:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         },
@@ -40816,7 +40816,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           },
                                           {
@@ -40844,10 +40844,10 @@
                                         "name": "TokenTransferError",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2679,
+                                        "referencedDeclaration": 2699,
                                         "src": "12091:18:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                           "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                         }
                                       },
@@ -40928,7 +40928,7 @@
                                           "referencedDeclaration": 1368,
                                           "src": "12232:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         },
@@ -41000,7 +41000,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           },
                                           {
@@ -41028,10 +41028,10 @@
                                         "name": "TokenTransferError",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2679,
+                                        "referencedDeclaration": 2699,
                                         "src": "12213:18:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                           "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                         }
                                       },
@@ -41074,7 +41074,7 @@
                                     "referencedDeclaration": 4294967268,
                                     "src": "11896:4:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2612",
                                       "typeString": "contract ONEWallet"
                                     }
                                   }
@@ -41082,7 +41082,7 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2612",
                                       "typeString": "contract ONEWallet"
                                     }
                                   ],
@@ -41308,7 +41308,7 @@
                                               "referencedDeclaration": 1368,
                                               "src": "11220:9:6",
                                               "typeDescriptions": {
-                                                "typeIdentifier": "t_enum$_TokenType_$2607",
+                                                "typeIdentifier": "t_enum$_TokenType_$2627",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               }
                                             },
@@ -41340,7 +41340,7 @@
                                           "expression": {
                                             "argumentTypes": [
                                               {
-                                                "typeIdentifier": "t_enum$_TokenType_$2607",
+                                                "typeIdentifier": "t_enum$_TokenType_$2627",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               },
                                               {
@@ -41356,10 +41356,10 @@
                                             "name": "_trackToken",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 3089,
+                                            "referencedDeclaration": 3109,
                                             "src": "11208:11:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
+                                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$returns$__$",
                                               "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                                             }
                                           },
@@ -41393,7 +41393,7 @@
                                               "referencedDeclaration": 1368,
                                               "src": "11306:9:6",
                                               "typeDescriptions": {
-                                                "typeIdentifier": "t_enum$_TokenType_$2607",
+                                                "typeIdentifier": "t_enum$_TokenType_$2627",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               }
                                             },
@@ -41449,7 +41449,7 @@
                                           "expression": {
                                             "argumentTypes": [
                                               {
-                                                "typeIdentifier": "t_enum$_TokenType_$2607",
+                                                "typeIdentifier": "t_enum$_TokenType_$2627",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               },
                                               {
@@ -41473,10 +41473,10 @@
                                             "name": "TokenTransferSucceeded",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 2692,
+                                            "referencedDeclaration": 2712,
                                             "src": "11283:22:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                              "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                               "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                             }
                                           },
@@ -41519,7 +41519,7 @@
                                         "referencedDeclaration": 1368,
                                         "src": "11445:9:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                                          "typeIdentifier": "t_enum$_TokenType_$2627",
                                           "typeString": "enum TokenTracker.TokenType"
                                         }
                                       },
@@ -41575,7 +41575,7 @@
                                     "expression": {
                                       "argumentTypes": [
                                         {
-                                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                                          "typeIdentifier": "t_enum$_TokenType_$2627",
                                           "typeString": "enum TokenTracker.TokenType"
                                         },
                                         {
@@ -41599,10 +41599,10 @@
                                       "name": "TokenTransferFailed",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2664,
+                                      "referencedDeclaration": 2684,
                                       "src": "11425:19:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                         "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                       }
                                     },
@@ -41683,7 +41683,7 @@
                                         "referencedDeclaration": 1368,
                                         "src": "11586:9:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                                          "typeIdentifier": "t_enum$_TokenType_$2627",
                                           "typeString": "enum TokenTracker.TokenType"
                                         }
                                       },
@@ -41751,7 +41751,7 @@
                                     "expression": {
                                       "argumentTypes": [
                                         {
-                                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                                          "typeIdentifier": "t_enum$_TokenType_$2627",
                                           "typeString": "enum TokenTracker.TokenType"
                                         },
                                         {
@@ -41779,10 +41779,10 @@
                                       "name": "TokenTransferError",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2679,
+                                      "referencedDeclaration": 2699,
                                       "src": "11567:18:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                         "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                       }
                                     },
@@ -41863,7 +41863,7 @@
                                         "referencedDeclaration": 1368,
                                         "src": "11708:9:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                                          "typeIdentifier": "t_enum$_TokenType_$2627",
                                           "typeString": "enum TokenTracker.TokenType"
                                         }
                                       },
@@ -41935,7 +41935,7 @@
                                     "expression": {
                                       "argumentTypes": [
                                         {
-                                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                                          "typeIdentifier": "t_enum$_TokenType_$2627",
                                           "typeString": "enum TokenTracker.TokenType"
                                         },
                                         {
@@ -41963,10 +41963,10 @@
                                       "name": "TokenTransferError",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2679,
+                                      "referencedDeclaration": 2699,
                                       "src": "11689:18:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                         "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                       }
                                     },
@@ -42144,7 +42144,7 @@
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2607",
+                    "typeIdentifier": "t_enum$_TokenType_$2627",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
@@ -42154,13 +42154,13 @@
                       "id": 1366,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2607,
+                      "referencedDeclaration": 2627,
                       "src": "10903:9:6"
                     },
-                    "referencedDeclaration": 2607,
+                    "referencedDeclaration": 2627,
                     "src": "10903:9:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2607",
+                      "typeIdentifier": "t_enum$_TokenType_$2627",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -42312,7 +42312,7 @@
               "parameters": [],
               "src": "11024:0:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "10879:1973:6",
             "stateMutability": "nonpayable",
             "virtual": false,
@@ -43011,7 +43011,7 @@
                                           "referencedDeclaration": 1574,
                                           "src": "13913:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         }
@@ -43019,7 +43019,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         ],
@@ -44547,7 +44547,7 @@
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2607",
+                    "typeIdentifier": "t_enum$_TokenType_$2627",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
@@ -44557,13 +44557,13 @@
                       "id": 1572,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2607,
+                      "referencedDeclaration": 2627,
                       "src": "13057:9:6"
                     },
-                    "referencedDeclaration": 2607,
+                    "referencedDeclaration": 2627,
                     "src": "13057:9:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2607",
+                      "typeIdentifier": "t_enum$_TokenType_$2627",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -44770,7 +44770,7 @@
               ],
               "src": "13193:18:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "12941:1287:6",
             "stateMutability": "pure",
             "virtual": false,
@@ -44778,9 +44778,9 @@
           },
           {
             "body": {
-              "id": 1923,
+              "id": 1925,
               "nodeType": "Block",
-              "src": "14490:1631:6",
+              "src": "14490:1661:6",
               "statements": [
                 {
                   "expression": {
@@ -44841,7 +44841,7 @@
                       "name": "_isCorrectProof",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2028,
+                      "referencedDeclaration": 2030,
                       "src": "14500:15:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_internal_view$_t_array$_t_bytes32_$dyn_calldata_ptr_$_t_uint32_$_t_bytes32_$returns$__$",
@@ -45089,7 +45089,7 @@
                       "name": "commitHash",
                       "nameLocation": "14725:10:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1923,
+                      "scope": 1925,
                       "src": "14717:18:6",
                       "stateVariable": false,
                       "storageLocation": "default",
@@ -45116,7 +45116,7 @@
                       "name": "paramsHash",
                       "nameLocation": "14745:10:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1923,
+                      "scope": 1925,
                       "src": "14737:18:6",
                       "stateVariable": false,
                       "storageLocation": "default",
@@ -45225,7 +45225,7 @@
                         "referencedDeclaration": 1755,
                         "src": "14837:9:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                          "typeIdentifier": "t_enum$_TokenType_$2627",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
@@ -45309,7 +45309,7 @@
                           "typeString": "enum ONEWallet.OperationType"
                         },
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                          "typeIdentifier": "t_enum$_TokenType_$2627",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -45340,7 +45340,7 @@
                       "referencedDeclaration": 1742,
                       "src": "14759:14:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_pure$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_enum$_OperationType_$493_$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_calldata_ptr_$returns$_t_bytes32_$_t_bytes32_$",
+                        "typeIdentifier": "t_function_internal_pure$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_enum$_OperationType_$493_$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_calldata_ptr_$returns$_t_bytes32_$_t_bytes32_$",
                         "typeString": "function (bytes32,uint32,bytes32,enum ONEWallet.OperationType,enum TokenTracker.TokenType,address,uint256,address,uint256,bytes calldata) pure returns (bytes32,bytes32)"
                       }
                     },
@@ -45374,7 +45374,7 @@
                       "name": "commitIndex",
                       "nameLocation": "14910:11:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1923,
+                      "scope": 1925,
                       "src": "14903:18:6",
                       "stateVariable": false,
                       "storageLocation": "default",
@@ -45395,7 +45395,7 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 1816,
+                  "id": 1817,
                   "initialValue": {
                     "arguments": [
                       {
@@ -45445,6 +45445,18 @@
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
+                      },
+                      {
+                        "id": 1815,
+                        "name": "operationType",
+                        "nodeType": "Identifier",
+                        "overloadedDeclarations": [],
+                        "referencedDeclaration": 1752,
+                        "src": "14984:13:6",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_enum$_OperationType_$493",
+                          "typeString": "enum ONEWallet.OperationType"
+                        }
                       }
                     ],
                     "expression": {
@@ -45464,20 +45476,24 @@
                         {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
+                        },
+                        {
+                          "typeIdentifier": "t_enum$_OperationType_$493",
+                          "typeString": "enum ONEWallet.OperationType"
                         }
                       ],
                       "id": 1810,
                       "name": "_verifyReveal",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2359,
+                      "referencedDeclaration": 2370,
                       "src": "14924:13:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_view$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_bytes32_$returns$_t_uint32_$",
-                        "typeString": "function (bytes32,uint32,bytes32,bytes32) view returns (uint32)"
+                        "typeIdentifier": "t_function_internal_view$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_bytes32_$_t_enum$_OperationType_$493_$returns$_t_uint32_$",
+                        "typeString": "function (bytes32,uint32,bytes32,bytes32,enum ONEWallet.OperationType) view returns (uint32)"
                       }
                     },
-                    "id": 1815,
+                    "id": 1816,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -45485,7 +45501,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "14924:59:6",
+                    "src": "14924:74:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
@@ -45493,34 +45509,46 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "14903:80:6"
+                  "src": "14903:95:6"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
-                        "id": 1818,
+                        "id": 1819,
                         "name": "commitHash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 1790,
-                        "src": "15009:10:6",
+                        "src": "15024:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1819,
+                        "id": 1820,
                         "name": "commitIndex",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 1809,
-                        "src": "15021:11:6",
+                        "src": "15036:11:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
                         }
+                      },
+                      {
+                        "id": 1821,
+                        "name": "operationType",
+                        "nodeType": "Identifier",
+                        "overloadedDeclarations": [],
+                        "referencedDeclaration": 1752,
+                        "src": "15049:13:6",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_enum$_OperationType_$493",
+                          "typeString": "enum ONEWallet.OperationType"
+                        }
                       }
                     ],
                     "expression": {
@@ -45532,20 +45560,24 @@
                         {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
+                        },
+                        {
+                          "typeIdentifier": "t_enum$_OperationType_$493",
+                          "typeString": "enum ONEWallet.OperationType"
                         }
                       ],
-                      "id": 1817,
+                      "id": 1818,
                       "name": "_completeReveal",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2432,
-                      "src": "14993:15:6",
+                      "referencedDeclaration": 2452,
+                      "src": "15008:15:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_nonpayable$_t_bytes32_$_t_uint32_$returns$__$",
-                        "typeString": "function (bytes32,uint32)"
+                        "typeIdentifier": "t_function_internal_nonpayable$_t_bytes32_$_t_uint32_$_t_enum$_OperationType_$493_$returns$__$",
+                        "typeString": "function (bytes32,uint32,enum ONEWallet.OperationType)"
                       }
                     },
-                    "id": 1820,
+                    "id": 1822,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -45553,16 +45585,16 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "14993:40:6",
+                    "src": "15008:55:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 1821,
+                  "id": 1823,
                   "nodeType": "ExpressionStatement",
-                  "src": "14993:40:6"
+                  "src": "15008:55:6"
                 },
                 {
                   "condition": {
@@ -45570,18 +45602,18 @@
                       "typeIdentifier": "t_enum$_OperationType_$493",
                       "typeString": "enum ONEWallet.OperationType"
                     },
-                    "id": 1825,
+                    "id": 1827,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 1822,
+                      "id": 1824,
                       "name": "operationType",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 1752,
-                      "src": "15098:13:6",
+                      "src": "15128:13:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
@@ -45591,18 +45623,18 @@
                     "operator": "==",
                     "rightExpression": {
                       "expression": {
-                        "id": 1823,
+                        "id": 1825,
                         "name": "OperationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 493,
-                        "src": "15115:13:6",
+                        "src": "15145:13:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                           "typeString": "type(enum ONEWallet.OperationType)"
                         }
                       },
-                      "id": 1824,
+                      "id": 1826,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
@@ -45610,13 +45642,13 @@
                       "memberName": "TRACK",
                       "nodeType": "MemberAccess",
                       "referencedDeclaration": 485,
-                      "src": "15115:19:6",
+                      "src": "15145:19:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       }
                     },
-                    "src": "15098:36:6",
+                    "src": "15128:36:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -45628,18 +45660,18 @@
                         "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       },
-                      "id": 1847,
+                      "id": 1849,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "leftExpression": {
-                        "id": 1844,
+                        "id": 1846,
                         "name": "operationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 1752,
-                        "src": "15328:13:6",
+                        "src": "15358:13:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
@@ -45649,18 +45681,18 @@
                       "operator": "==",
                       "rightExpression": {
                         "expression": {
-                          "id": 1845,
+                          "id": 1847,
                           "name": "OperationType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 493,
-                          "src": "15345:13:6",
+                          "src": "15375:13:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                             "typeString": "type(enum ONEWallet.OperationType)"
                           }
                         },
-                        "id": 1846,
+                        "id": 1848,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
@@ -45668,13 +45700,13 @@
                         "memberName": "UNTRACK",
                         "nodeType": "MemberAccess",
                         "referencedDeclaration": 486,
-                        "src": "15345:21:6",
+                        "src": "15375:21:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         }
                       },
-                      "src": "15328:38:6",
+                      "src": "15358:38:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
@@ -45686,18 +45718,18 @@
                           "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         },
-                        "id": 1869,
+                        "id": 1871,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
-                          "id": 1866,
+                          "id": 1868,
                           "name": "operationType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 1752,
-                          "src": "15564:13:6",
+                          "src": "15594:13:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
@@ -45707,18 +45739,18 @@
                         "operator": "==",
                         "rightExpression": {
                           "expression": {
-                            "id": 1867,
+                            "id": 1869,
                             "name": "OperationType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 493,
-                            "src": "15581:13:6",
+                            "src": "15611:13:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                               "typeString": "type(enum ONEWallet.OperationType)"
                             }
                           },
-                          "id": 1868,
+                          "id": 1870,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
@@ -45726,13 +45758,13 @@
                           "memberName": "TRANSFER_TOKEN",
                           "nodeType": "MemberAccess",
                           "referencedDeclaration": 487,
-                          "src": "15581:28:6",
+                          "src": "15611:28:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           }
                         },
-                        "src": "15564:45:6",
+                        "src": "15594:45:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -45744,18 +45776,18 @@
                             "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           },
-                          "id": 1883,
+                          "id": 1885,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 1880,
+                            "id": 1882,
                             "name": "operationType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 1752,
-                            "src": "15717:13:6",
+                            "src": "15747:13:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_enum$_OperationType_$493",
                               "typeString": "enum ONEWallet.OperationType"
@@ -45765,18 +45797,18 @@
                           "operator": "==",
                           "rightExpression": {
                             "expression": {
-                              "id": 1881,
+                              "id": 1883,
                               "name": "OperationType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 493,
-                              "src": "15734:13:6",
+                              "src": "15764:13:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                 "typeString": "type(enum ONEWallet.OperationType)"
                               }
                             },
-                            "id": 1882,
+                            "id": 1884,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
@@ -45784,13 +45816,13 @@
                             "memberName": "OVERRIDE_TRACK",
                             "nodeType": "MemberAccess",
                             "referencedDeclaration": 488,
-                            "src": "15734:28:6",
+                            "src": "15764:28:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_enum$_OperationType_$493",
                               "typeString": "enum ONEWallet.OperationType"
                             }
                           },
-                          "src": "15717:45:6",
+                          "src": "15747:45:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
@@ -45802,18 +45834,18 @@
                               "typeIdentifier": "t_enum$_OperationType_$493",
                               "typeString": "enum ONEWallet.OperationType"
                             },
-                            "id": 1892,
+                            "id": 1894,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "leftExpression": {
-                              "id": 1889,
+                              "id": 1891,
                               "name": "operationType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 1752,
-                              "src": "15828:13:6",
+                              "src": "15858:13:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_enum$_OperationType_$493",
                                 "typeString": "enum ONEWallet.OperationType"
@@ -45823,18 +45855,18 @@
                             "operator": "==",
                             "rightExpression": {
                               "expression": {
-                                "id": 1890,
+                                "id": 1892,
                                 "name": "OperationType",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
                                 "referencedDeclaration": 493,
-                                "src": "15845:13:6",
+                                "src": "15875:13:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                   "typeString": "type(enum ONEWallet.OperationType)"
                                 }
                               },
-                              "id": 1891,
+                              "id": 1893,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
@@ -45842,13 +45874,13 @@
                               "memberName": "TRANSFER",
                               "nodeType": "MemberAccess",
                               "referencedDeclaration": 489,
-                              "src": "15845:22:6",
+                              "src": "15875:22:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_enum$_OperationType_$493",
                                 "typeString": "enum ONEWallet.OperationType"
                               }
                             },
-                            "src": "15828:39:6",
+                            "src": "15858:39:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bool",
                               "typeString": "bool"
@@ -45860,18 +45892,18 @@
                                 "typeIdentifier": "t_enum$_OperationType_$493",
                                 "typeString": "enum ONEWallet.OperationType"
                               },
-                              "id": 1902,
+                              "id": 1904,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
                               "lValueRequested": false,
                               "leftExpression": {
-                                "id": 1899,
+                                "id": 1901,
                                 "name": "operationType",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
                                 "referencedDeclaration": 1752,
-                                "src": "15927:13:6",
+                                "src": "15957:13:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_enum$_OperationType_$493",
                                   "typeString": "enum ONEWallet.OperationType"
@@ -45881,18 +45913,18 @@
                               "operator": "==",
                               "rightExpression": {
                                 "expression": {
-                                  "id": 1900,
+                                  "id": 1902,
                                   "name": "OperationType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 493,
-                                  "src": "15944:13:6",
+                                  "src": "15974:13:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                     "typeString": "type(enum ONEWallet.OperationType)"
                                   }
                                 },
-                                "id": 1901,
+                                "id": 1903,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
@@ -45900,13 +45932,13 @@
                                 "memberName": "RECOVER",
                                 "nodeType": "MemberAccess",
                                 "referencedDeclaration": 491,
-                                "src": "15944:21:6",
+                                "src": "15974:21:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_enum$_OperationType_$493",
                                   "typeString": "enum ONEWallet.OperationType"
                                 }
                               },
-                              "src": "15927:38:6",
+                              "src": "15957:38:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bool",
                                 "typeString": "bool"
@@ -45918,18 +45950,18 @@
                                   "typeIdentifier": "t_enum$_OperationType_$493",
                                   "typeString": "enum ONEWallet.OperationType"
                                 },
-                                "id": 1910,
+                                "id": 1912,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "leftExpression": {
-                                  "id": 1907,
+                                  "id": 1909,
                                   "name": "operationType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1752,
-                                  "src": "16012:13:6",
+                                  "src": "16042:13:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_enum$_OperationType_$493",
                                     "typeString": "enum ONEWallet.OperationType"
@@ -45939,18 +45971,18 @@
                                 "operator": "==",
                                 "rightExpression": {
                                   "expression": {
-                                    "id": 1908,
+                                    "id": 1910,
                                     "name": "OperationType",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 493,
-                                    "src": "16029:13:6",
+                                    "src": "16059:13:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                       "typeString": "type(enum ONEWallet.OperationType)"
                                     }
                                   },
-                                  "id": 1909,
+                                  "id": 1911,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
@@ -45958,36 +45990,36 @@
                                   "memberName": "SET_RECOVERY_ADDRESS",
                                   "nodeType": "MemberAccess",
                                   "referencedDeclaration": 490,
-                                  "src": "16029:34:6",
+                                  "src": "16059:34:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_enum$_OperationType_$493",
                                     "typeString": "enum ONEWallet.OperationType"
                                   }
                                 },
-                                "src": "16012:51:6",
+                                "src": "16042:51:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bool",
                                   "typeString": "bool"
                                 }
                               },
-                              "id": 1916,
+                              "id": 1918,
                               "nodeType": "IfStatement",
-                              "src": "16008:107:6",
+                              "src": "16038:107:6",
                               "trueBody": {
-                                "id": 1915,
+                                "id": 1917,
                                 "nodeType": "Block",
-                                "src": "16065:50:6",
+                                "src": "16095:50:6",
                                 "statements": [
                                   {
                                     "expression": {
                                       "arguments": [
                                         {
-                                          "id": 1912,
+                                          "id": 1914,
                                           "name": "dest",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
                                           "referencedDeclaration": 1761,
-                                          "src": "16099:4:6",
+                                          "src": "16129:4:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address_payable",
                                             "typeString": "address payable"
@@ -46001,18 +46033,18 @@
                                             "typeString": "address payable"
                                           }
                                         ],
-                                        "id": 1911,
+                                        "id": 1913,
                                         "name": "_setRecoveryAddress",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
                                         "referencedDeclaration": 1365,
-                                        "src": "16079:19:6",
+                                        "src": "16109:19:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_function_internal_nonpayable$_t_address_payable_$returns$__$",
                                           "typeString": "function (address payable)"
                                         }
                                       },
-                                      "id": 1913,
+                                      "id": 1915,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -46020,45 +46052,45 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "16079:25:6",
+                                      "src": "16109:25:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_tuple$__$",
                                         "typeString": "tuple()"
                                       }
                                     },
-                                    "id": 1914,
+                                    "id": 1916,
                                     "nodeType": "ExpressionStatement",
-                                    "src": "16079:25:6"
+                                    "src": "16109:25:6"
                                   }
                                 ]
                               }
                             },
-                            "id": 1917,
+                            "id": 1919,
                             "nodeType": "IfStatement",
-                            "src": "15923:192:6",
+                            "src": "15953:192:6",
                             "trueBody": {
-                              "id": 1906,
+                              "id": 1908,
                               "nodeType": "Block",
-                              "src": "15967:35:6",
+                              "src": "15997:35:6",
                               "statements": [
                                 {
                                   "expression": {
                                     "arguments": [],
                                     "expression": {
                                       "argumentTypes": [],
-                                      "id": 1903,
+                                      "id": 1905,
                                       "name": "_recover",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1345,
-                                      "src": "15981:8:6",
+                                      "src": "16011:8:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_function_internal_nonpayable$__$returns$_t_bool_$",
                                         "typeString": "function () returns (bool)"
                                       }
                                     },
-                                    "id": 1904,
+                                    "id": 1906,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -46066,50 +46098,50 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "15981:10:6",
+                                    "src": "16011:10:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bool",
                                       "typeString": "bool"
                                     }
                                   },
-                                  "id": 1905,
+                                  "id": 1907,
                                   "nodeType": "ExpressionStatement",
-                                  "src": "15981:10:6"
+                                  "src": "16011:10:6"
                                 }
                               ]
                             }
                           },
-                          "id": 1918,
+                          "id": 1920,
                           "nodeType": "IfStatement",
-                          "src": "15824:291:6",
+                          "src": "15854:291:6",
                           "trueBody": {
-                            "id": 1898,
+                            "id": 1900,
                             "nodeType": "Block",
-                            "src": "15869:48:6",
+                            "src": "15899:48:6",
                             "statements": [
                               {
                                 "expression": {
                                   "arguments": [
                                     {
-                                      "id": 1894,
+                                      "id": 1896,
                                       "name": "dest",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1761,
-                                      "src": "15893:4:6",
+                                      "src": "15923:4:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_address_payable",
                                         "typeString": "address payable"
                                       }
                                     },
                                     {
-                                      "id": 1895,
+                                      "id": 1897,
                                       "name": "amount",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1763,
-                                      "src": "15899:6:6",
+                                      "src": "15929:6:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -46127,18 +46159,18 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1893,
+                                    "id": 1895,
                                     "name": "_transfer",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 1314,
-                                    "src": "15883:9:6",
+                                    "src": "15913:9:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_nonpayable$_t_address_payable_$_t_uint256_$returns$_t_bool_$",
                                       "typeString": "function (address payable,uint256) returns (bool)"
                                     }
                                   },
-                                  "id": 1896,
+                                  "id": 1898,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -46146,38 +46178,38 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "15883:23:6",
+                                  "src": "15913:23:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bool",
                                     "typeString": "bool"
                                   }
                                 },
-                                "id": 1897,
+                                "id": 1899,
                                 "nodeType": "ExpressionStatement",
-                                "src": "15883:23:6"
+                                "src": "15913:23:6"
                               }
                             ]
                           }
                         },
-                        "id": 1919,
+                        "id": 1921,
                         "nodeType": "IfStatement",
-                        "src": "15713:402:6",
+                        "src": "15743:402:6",
                         "trueBody": {
-                          "id": 1888,
+                          "id": 1890,
                           "nodeType": "Block",
-                          "src": "15764:54:6",
+                          "src": "15794:54:6",
                           "statements": [
                             {
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 1885,
+                                    "id": 1887,
                                     "name": "data",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 1765,
-                                    "src": "15802:4:6",
+                                    "src": "15832:4:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -46191,18 +46223,18 @@
                                       "typeString": "bytes calldata"
                                     }
                                   ],
-                                  "id": 1884,
+                                  "id": 1886,
                                   "name": "_overrideTrackWithBytes",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 3597,
-                                  "src": "15778:23:6",
+                                  "referencedDeclaration": 3617,
+                                  "src": "15808:23:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_calldata_ptr_$returns$__$",
                                     "typeString": "function (bytes calldata)"
                                   }
                                 },
-                                "id": 1886,
+                                "id": 1888,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -46210,98 +46242,98 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "15778:29:6",
+                                "src": "15808:29:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_tuple$__$",
                                   "typeString": "tuple()"
                                 }
                               },
-                              "id": 1887,
+                              "id": 1889,
                               "nodeType": "ExpressionStatement",
-                              "src": "15778:29:6"
+                              "src": "15808:29:6"
                             }
                           ]
                         }
                       },
-                      "id": 1920,
+                      "id": 1922,
                       "nodeType": "IfStatement",
-                      "src": "15560:555:6",
+                      "src": "15590:555:6",
                       "trueBody": {
-                        "id": 1879,
+                        "id": 1881,
                         "nodeType": "Block",
-                        "src": "15611:96:6",
+                        "src": "15641:96:6",
                         "statements": [
                           {
                             "expression": {
                               "arguments": [
                                 {
-                                  "id": 1871,
+                                  "id": 1873,
                                   "name": "tokenType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1755,
-                                  "src": "15640:9:6",
+                                  "src": "15670:9:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_TokenType_$2607",
+                                    "typeIdentifier": "t_enum$_TokenType_$2627",
                                     "typeString": "enum TokenTracker.TokenType"
                                   }
                                 },
                                 {
-                                  "id": 1872,
+                                  "id": 1874,
                                   "name": "contractAddress",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1757,
-                                  "src": "15651:15:6",
+                                  "src": "15681:15:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
                                   }
                                 },
                                 {
-                                  "id": 1873,
+                                  "id": 1875,
                                   "name": "tokenId",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1759,
-                                  "src": "15668:7:6",
+                                  "src": "15698:7:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
                                 {
-                                  "id": 1874,
+                                  "id": 1876,
                                   "name": "dest",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1761,
-                                  "src": "15677:4:6",
+                                  "src": "15707:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address_payable",
                                     "typeString": "address payable"
                                   }
                                 },
                                 {
-                                  "id": 1875,
+                                  "id": 1877,
                                   "name": "amount",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1763,
-                                  "src": "15683:6:6",
+                                  "src": "15713:6:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
                                 {
-                                  "id": 1876,
+                                  "id": 1878,
                                   "name": "data",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1765,
-                                  "src": "15691:4:6",
+                                  "src": "15721:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes_calldata_ptr",
                                     "typeString": "bytes calldata"
@@ -46311,7 +46343,7 @@
                               "expression": {
                                 "argumentTypes": [
                                   {
-                                    "typeIdentifier": "t_enum$_TokenType_$2607",
+                                    "typeIdentifier": "t_enum$_TokenType_$2627",
                                     "typeString": "enum TokenTracker.TokenType"
                                   },
                                   {
@@ -46335,18 +46367,18 @@
                                     "typeString": "bytes calldata"
                                   }
                                 ],
-                                "id": 1870,
+                                "id": 1872,
                                 "name": "_transferToken",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
                                 "referencedDeclaration": 1561,
-                                "src": "15625:14:6",
+                                "src": "15655:14:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
+                                  "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
                                   "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,bytes memory)"
                                 }
                               },
-                              "id": 1877,
+                              "id": 1879,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -46354,27 +46386,27 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "15625:71:6",
+                              "src": "15655:71:6",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_tuple$__$",
                                 "typeString": "tuple()"
                               }
                             },
-                            "id": 1878,
+                            "id": 1880,
                             "nodeType": "ExpressionStatement",
-                            "src": "15625:71:6"
+                            "src": "15655:71:6"
                           }
                         ]
                       }
                     },
-                    "id": 1921,
+                    "id": 1923,
                     "nodeType": "IfStatement",
-                    "src": "15324:791:6",
+                    "src": "15354:791:6",
                     "trueBody": {
-                      "id": 1865,
+                      "id": 1867,
                       "nodeType": "Block",
-                      "src": "15368:186:6",
+                      "src": "15398:186:6",
                       "statements": [
                         {
                           "condition": {
@@ -46382,32 +46414,32 @@
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             },
-                            "id": 1851,
+                            "id": 1853,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "leftExpression": {
                               "expression": {
-                                "id": 1848,
+                                "id": 1850,
                                 "name": "data",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
                                 "referencedDeclaration": 1765,
-                                "src": "15386:4:6",
+                                "src": "15416:4:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes_calldata_ptr",
                                   "typeString": "bytes calldata"
                                 }
                               },
-                              "id": 1849,
+                              "id": 1851,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
                               "lValueRequested": false,
                               "memberName": "length",
                               "nodeType": "MemberAccess",
-                              "src": "15386:11:6",
+                              "src": "15416:11:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -46417,41 +46449,41 @@
                             "operator": ">",
                             "rightExpression": {
                               "hexValue": "30",
-                              "id": 1850,
+                              "id": 1852,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "kind": "number",
                               "lValueRequested": false,
                               "nodeType": "Literal",
-                              "src": "15400:1:6",
+                              "src": "15430:1:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_rational_0_by_1",
                                 "typeString": "int_const 0"
                               },
                               "value": "0"
                             },
-                            "src": "15386:15:6",
+                            "src": "15416:15:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bool",
                               "typeString": "bool"
                             }
                           },
                           "falseBody": {
-                            "id": 1863,
+                            "id": 1865,
                             "nodeType": "Block",
-                            "src": "15492:52:6",
+                            "src": "15522:52:6",
                             "statements": [
                               {
                                 "expression": {
                                   "arguments": [
                                     {
-                                      "id": 1860,
+                                      "id": 1862,
                                       "name": "data",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1765,
-                                      "src": "15524:4:6",
+                                      "src": "15554:4:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes_calldata_ptr",
                                         "typeString": "bytes calldata"
@@ -46465,18 +46497,18 @@
                                         "typeString": "bytes calldata"
                                       }
                                     ],
-                                    "id": 1859,
+                                    "id": 1861,
                                     "name": "_multiUntrack",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3813,
-                                    "src": "15510:13:6",
+                                    "referencedDeclaration": 3833,
+                                    "src": "15540:13:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_calldata_ptr_$returns$__$",
                                       "typeString": "function (bytes calldata)"
                                     }
                                   },
-                                  "id": 1861,
+                                  "id": 1863,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -46484,61 +46516,61 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "15510:19:6",
+                                  "src": "15540:19:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_tuple$__$",
                                     "typeString": "tuple()"
                                   }
                                 },
-                                "id": 1862,
+                                "id": 1864,
                                 "nodeType": "ExpressionStatement",
-                                "src": "15510:19:6"
+                                "src": "15540:19:6"
                               }
                             ]
                           },
-                          "id": 1864,
+                          "id": 1866,
                           "nodeType": "IfStatement",
-                          "src": "15382:162:6",
+                          "src": "15412:162:6",
                           "trueBody": {
-                            "id": 1858,
+                            "id": 1860,
                             "nodeType": "Block",
-                            "src": "15403:83:6",
+                            "src": "15433:83:6",
                             "statements": [
                               {
                                 "expression": {
                                   "arguments": [
                                     {
-                                      "id": 1853,
+                                      "id": 1855,
                                       "name": "tokenType",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1755,
-                                      "src": "15435:9:6",
+                                      "src": "15465:9:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_enum$_TokenType_$2607",
+                                        "typeIdentifier": "t_enum$_TokenType_$2627",
                                         "typeString": "enum TokenTracker.TokenType"
                                       }
                                     },
                                     {
-                                      "id": 1854,
+                                      "id": 1856,
                                       "name": "contractAddress",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1757,
-                                      "src": "15446:15:6",
+                                      "src": "15476:15:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_address",
                                         "typeString": "address"
                                       }
                                     },
                                     {
-                                      "id": 1855,
+                                      "id": 1857,
                                       "name": "tokenId",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1759,
-                                      "src": "15463:7:6",
+                                      "src": "15493:7:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -46548,7 +46580,7 @@
                                   "expression": {
                                     "argumentTypes": [
                                       {
-                                        "typeIdentifier": "t_enum$_TokenType_$2607",
+                                        "typeIdentifier": "t_enum$_TokenType_$2627",
                                         "typeString": "enum TokenTracker.TokenType"
                                       },
                                       {
@@ -46560,18 +46592,18 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1852,
+                                    "id": 1854,
                                     "name": "_untrackToken",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3307,
-                                    "src": "15421:13:6",
+                                    "referencedDeclaration": 3327,
+                                    "src": "15451:13:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
+                                      "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$returns$__$",
                                       "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                                     }
                                   },
-                                  "id": 1856,
+                                  "id": 1858,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -46579,16 +46611,16 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "15421:50:6",
+                                  "src": "15451:50:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_tuple$__$",
                                     "typeString": "tuple()"
                                   }
                                 },
-                                "id": 1857,
+                                "id": 1859,
                                 "nodeType": "ExpressionStatement",
-                                "src": "15421:50:6"
+                                "src": "15451:50:6"
                               }
                             ]
                           }
@@ -46596,13 +46628,13 @@
                       ]
                     }
                   },
-                  "id": 1922,
+                  "id": 1924,
                   "nodeType": "IfStatement",
-                  "src": "15094:1021:6",
+                  "src": "15124:1021:6",
                   "trueBody": {
-                    "id": 1843,
+                    "id": 1845,
                     "nodeType": "Block",
-                    "src": "15136:182:6",
+                    "src": "15166:182:6",
                     "statements": [
                       {
                         "condition": {
@@ -46610,32 +46642,32 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
-                          "id": 1829,
+                          "id": 1831,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
                             "expression": {
-                              "id": 1826,
+                              "id": 1828,
                               "name": "data",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 1765,
-                              "src": "15154:4:6",
+                              "src": "15184:4:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_calldata_ptr",
                                 "typeString": "bytes calldata"
                               }
                             },
-                            "id": 1827,
+                            "id": 1829,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "15154:11:6",
+                            "src": "15184:11:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -46645,65 +46677,65 @@
                           "operator": ">",
                           "rightExpression": {
                             "hexValue": "30",
-                            "id": 1828,
+                            "id": 1830,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "15168:1:6",
+                            "src": "15198:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_0_by_1",
                               "typeString": "int_const 0"
                             },
                             "value": "0"
                           },
-                          "src": "15154:15:6",
+                          "src": "15184:15:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
                         "falseBody": {
-                          "id": 1841,
+                          "id": 1843,
                           "nodeType": "Block",
-                          "src": "15227:81:6",
+                          "src": "15257:81:6",
                           "statements": [
                             {
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 1836,
+                                    "id": 1838,
                                     "name": "tokenType",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 1755,
-                                    "src": "15257:9:6",
+                                    "src": "15287:9:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_enum$_TokenType_$2607",
+                                      "typeIdentifier": "t_enum$_TokenType_$2627",
                                       "typeString": "enum TokenTracker.TokenType"
                                     }
                                   },
                                   {
-                                    "id": 1837,
+                                    "id": 1839,
                                     "name": "contractAddress",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 1757,
-                                    "src": "15268:15:6",
+                                    "src": "15298:15:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_address",
                                       "typeString": "address"
                                     }
                                   },
                                   {
-                                    "id": 1838,
+                                    "id": 1840,
                                     "name": "tokenId",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 1759,
-                                    "src": "15285:7:6",
+                                    "src": "15315:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint256",
                                       "typeString": "uint256"
@@ -46713,7 +46745,7 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_enum$_TokenType_$2607",
+                                      "typeIdentifier": "t_enum$_TokenType_$2627",
                                       "typeString": "enum TokenTracker.TokenType"
                                     },
                                     {
@@ -46725,18 +46757,18 @@
                                       "typeString": "uint256"
                                     }
                                   ],
-                                  "id": 1835,
+                                  "id": 1837,
                                   "name": "_trackToken",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 3089,
-                                  "src": "15245:11:6",
+                                  "referencedDeclaration": 3109,
+                                  "src": "15275:11:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
+                                    "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$returns$__$",
                                     "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                                   }
                                 },
-                                "id": 1839,
+                                "id": 1841,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -46744,37 +46776,37 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "15245:48:6",
+                                "src": "15275:48:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_tuple$__$",
                                   "typeString": "tuple()"
                                 }
                               },
-                              "id": 1840,
+                              "id": 1842,
                               "nodeType": "ExpressionStatement",
-                              "src": "15245:48:6"
+                              "src": "15275:48:6"
                             }
                           ]
                         },
-                        "id": 1842,
+                        "id": 1844,
                         "nodeType": "IfStatement",
-                        "src": "15150:158:6",
+                        "src": "15180:158:6",
                         "trueBody": {
-                          "id": 1834,
+                          "id": 1836,
                           "nodeType": "Block",
-                          "src": "15171:50:6",
+                          "src": "15201:50:6",
                           "statements": [
                             {
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 1831,
+                                    "id": 1833,
                                     "name": "data",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 1765,
-                                    "src": "15201:4:6",
+                                    "src": "15231:4:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -46788,18 +46820,18 @@
                                       "typeString": "bytes calldata"
                                     }
                                   ],
-                                  "id": 1830,
+                                  "id": 1832,
                                   "name": "_multiTrack",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 3705,
-                                  "src": "15189:11:6",
+                                  "referencedDeclaration": 3725,
+                                  "src": "15219:11:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_calldata_ptr_$returns$__$",
                                     "typeString": "function (bytes calldata)"
                                   }
                                 },
-                                "id": 1832,
+                                "id": 1834,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -46807,16 +46839,16 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "15189:17:6",
+                                "src": "15219:17:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_tuple$__$",
                                   "typeString": "tuple()"
                                 }
                               },
-                              "id": 1833,
+                              "id": 1835,
                               "nodeType": "ExpressionStatement",
-                              "src": "15189:17:6"
+                              "src": "15219:17:6"
                             }
                           ]
                         }
@@ -46827,7 +46859,7 @@
               ]
             },
             "functionSelector": "c34a6dad",
-            "id": 1924,
+            "id": 1926,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
@@ -46845,7 +46877,7 @@
                   "name": "neighbors",
                   "nameLocation": "14270:9:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14251:28:6",
                   "stateVariable": false,
                   "storageLocation": "calldata",
@@ -46881,7 +46913,7 @@
                   "name": "indexWithNonce",
                   "nameLocation": "14288:14:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14281:21:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -46908,7 +46940,7 @@
                   "name": "eotp",
                   "nameLocation": "14312:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14304:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -46935,7 +46967,7 @@
                   "name": "operationType",
                   "nameLocation": "14340:13:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14326:27:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -46969,12 +47001,12 @@
                   "name": "tokenType",
                   "nameLocation": "14365:9:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14355:19:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2607",
+                    "typeIdentifier": "t_enum$_TokenType_$2627",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
@@ -46984,13 +47016,13 @@
                       "id": 1753,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2607,
+                      "referencedDeclaration": 2627,
                       "src": "14355:9:6"
                     },
-                    "referencedDeclaration": 2607,
+                    "referencedDeclaration": 2627,
                     "src": "14355:9:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2607",
+                      "typeIdentifier": "t_enum$_TokenType_$2627",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -47003,7 +47035,7 @@
                   "name": "contractAddress",
                   "nameLocation": "14384:15:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14376:23:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -47031,7 +47063,7 @@
                   "name": "tokenId",
                   "nameLocation": "14409:7:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14401:15:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -47058,7 +47090,7 @@
                   "name": "dest",
                   "nameLocation": "14434:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14418:20:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -47086,7 +47118,7 @@
                   "name": "amount",
                   "nameLocation": "14448:6:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14440:14:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -47113,7 +47145,7 @@
                   "name": "data",
                   "nameLocation": "14471:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14456:19:6",
                   "stateVariable": false,
                   "storageLocation": "calldata",
@@ -47142,17 +47174,17 @@
               "parameters": [],
               "src": "14490:0:6"
             },
-            "scope": 2592,
-            "src": "14235:1886:6",
+            "scope": 2612,
+            "src": "14235:1916:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "external"
           },
           {
             "body": {
-              "id": 2027,
+              "id": 2029,
               "nodeType": "Block",
-              "src": "16350:604:6",
+              "src": "16380:604:6",
               "statements": [
                 {
                   "expression": {
@@ -47162,32 +47194,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 1941,
+                        "id": 1943,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 1936,
+                            "id": 1938,
                             "name": "neighbors",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1928,
-                            "src": "16368:9:6",
+                            "referencedDeclaration": 1930,
+                            "src": "16398:9:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_bytes32_$dyn_calldata_ptr",
                               "typeString": "bytes32[] calldata"
                             }
                           },
-                          "id": 1937,
+                          "id": 1939,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "16368:16:6",
+                          "src": "16398:16:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -47200,18 +47232,18 @@
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
                           },
-                          "id": 1940,
+                          "id": 1942,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 1938,
+                            "id": 1940,
                             "name": "height",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 439,
-                            "src": "16388:6:6",
+                            "src": "16418:6:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint8",
                               "typeString": "uint8"
@@ -47221,27 +47253,27 @@
                           "operator": "-",
                           "rightExpression": {
                             "hexValue": "31",
-                            "id": 1939,
+                            "id": 1941,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "16397:1:6",
+                            "src": "16427:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_1_by_1",
                               "typeString": "int_const 1"
                             },
                             "value": "1"
                           },
-                          "src": "16388:10:6",
+                          "src": "16418:10:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
                           }
                         },
-                        "src": "16368:30:6",
+                        "src": "16398:30:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -47249,14 +47281,14 @@
                       },
                       {
                         "hexValue": "4e6f7420656e6f756768206e65696768626f72732070726f7669646564",
-                        "id": 1942,
+                        "id": 1944,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "16400:31:6",
+                        "src": "16430:31:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_83d08d6dcf099c52fbe149a08cb4ffd65f3fec6dbf87dba7bc08b7a534982441",
                           "typeString": "literal_string \"Not enough neighbors provided\""
@@ -47275,7 +47307,7 @@
                           "typeString": "literal_string \"Not enough neighbors provided\""
                         }
                       ],
-                      "id": 1935,
+                      "id": 1937,
                       "name": "require",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
@@ -47283,13 +47315,13 @@
                         4294967278
                       ],
                       "referencedDeclaration": 4294967278,
-                      "src": "16360:7:6",
+                      "src": "16390:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (bool,string memory) pure"
                       }
                     },
-                    "id": 1943,
+                    "id": 1945,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -47297,31 +47329,31 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "16360:72:6",
+                    "src": "16390:72:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 1944,
+                  "id": 1946,
                   "nodeType": "ExpressionStatement",
-                  "src": "16360:72:6"
+                  "src": "16390:72:6"
                 },
                 {
                   "assignments": [
-                    1946
+                    1948
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 1946,
+                      "id": 1948,
                       "mutability": "mutable",
                       "name": "h",
-                      "nameLocation": "16450:1:6",
+                      "nameLocation": "16480:1:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2027,
-                      "src": "16442:9:6",
+                      "scope": 2029,
+                      "src": "16472:9:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -47329,10 +47361,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 1945,
+                        "id": 1947,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "16442:7:6",
+                        "src": "16472:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -47341,18 +47373,18 @@
                       "visibility": "internal"
                     }
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@@ -47367,39 +47399,39 @@
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+                          "src": "16491:12:6",
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@@ -47407,7 +47439,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "16461:18:6",
+                        "src": "16491:18:6",
                         "tryCall": false,
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@@ -47422,18 +47454,18 @@
                           "typeString": "bytes memory"
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                         "typeString": "function (bytes memory) pure returns (bytes32)"
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@@ -47441,7 +47473,7 @@
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@@ -47449,7 +47481,7 @@
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@@ -47457,18 +47489,18 @@
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@@ -47481,18 +47513,18 @@
                         "typeIdentifier": "t_uint32",
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@@ -47502,54 +47534,54 @@
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@@ -47558,35 +47590,35 @@
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                               "typeString": "bytes32"
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                             "typeString": "bytes32"
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+                        "id": 1965,
                         "nodeType": "ExpressionStatement",
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+                        "src": "16608:8:6"
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+                    "id": 2019,
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@@ -47594,7 +47626,7 @@
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@@ -47606,18 +47638,18 @@
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
                                 },
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+                                  "referencedDeclaration": 1932,
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@@ -47627,35 +47659,35 @@
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                                     "typeString": "int_const 1"
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@@ -47665,45 +47697,45 @@
                           "operator": "==",
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                               "typeString": "int_const 1"
                             },
                             "value": "0x01"
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                             "typeString": "bool"
                           }
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+                          "id": 2013,
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@@ -47716,12 +47748,12 @@
                                     {
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@@ -47729,25 +47761,25 @@
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                                               "typeString": "bytes32[] calldata"
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@@ -47758,7 +47790,7 @@
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@@ -47777,39 +47809,39 @@
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+                                          "src": "16829:5:6",
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                                             "typeString": "type(bytes storage pointer)"
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+                                            "id": 2002,
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                                         "memberName": "concat",
                                         "nodeType": "MemberAccess",
-                                        "src": "16799:12:6",
+                                        "src": "16829:12:6",
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                                           "typeString": "function () pure returns (bytes memory)"
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@@ -47817,7 +47849,7 @@
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@@ -47832,18 +47864,18 @@
                                         "typeString": "bytes memory"
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-                                    "src": "16792:6:6",
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                                       "typeString": "function (bytes memory) pure returns (bytes32)"
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                                   },
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@@ -47851,47 +47883,47 @@
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                                     "typeString": "bytes32"
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+                              "id": 2012,
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+                        "id": 2014,
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@@ -47905,25 +47937,25 @@
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+                                            "referencedDeclaration": 1930,
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                                               "typeString": "bytes32[] calldata"
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@@ -47934,19 +47966,19 @@
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+                                          "id": 1994,
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@@ -47965,39 +47997,39 @@
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+                                          "src": "16749:5:6",
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+                                            "id": 1988,
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+                                        "src": "16749:12:6",
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                                           "typeString": "function () pure returns (bytes memory)"
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@@ -48005,7 +48037,7 @@
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@@ -48020,18 +48052,18 @@
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+                                    "id": 1987,
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+                                    "src": "16742:6:6",
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                                       "typeString": "function (bytes memory) pure returns (bytes32)"
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@@ -48039,40 +48071,40 @@
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@@ -48082,29 +48114,29 @@
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@@ -48113,18 +48145,18 @@
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@@ -48137,18 +48169,18 @@
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@@ -48158,47 +48190,47 @@
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@@ -48206,10 +48238,10 @@
                           "typeString": "uint8"
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@@ -48218,17 +48250,17 @@
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@@ -48236,11 +48268,11 @@
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@@ -48248,14 +48280,14 @@
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@@ -48266,12 +48298,12 @@
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@@ -48281,18 +48313,18 @@
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@@ -48301,18 +48333,18 @@
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@@ -48320,14 +48352,14 @@
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@@ -48346,7 +48378,7 @@
                           "typeString": "literal_string \"Proof is incorrect\""
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@@ -48421,18 +48453,18 @@
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@@ -48442,13 +48474,13 @@
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@@ -48469,13 +48501,13 @@
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@@ -48495,40 +48527,40 @@
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@@ -48536,10 +48568,10 @@
                         "typeString": "uint32"
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@@ -48548,17 +48580,17 @@
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@@ -48566,22 +48598,22 @@
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@@ -48589,10 +48621,10 @@
                         "typeString": "uint32"
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@@ -48601,30 +48633,30 @@
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@@ -48638,26 +48670,26 @@
                           "typeString": "uint256"
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@@ -48665,7 +48697,7 @@
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@@ -48673,28 +48705,28 @@
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@@ -48702,10 +48734,10 @@
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@@ -48714,28 +48746,28 @@
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                             "name": "commits",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 507,
-                            "src": "17776:7:6",
+                            "src": "17806:7:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_bytes32_$dyn_storage",
                               "typeString": "bytes32[] storage ref"
                             }
                           },
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+                          "id": 2057,
                           "indexExpression": {
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+                            "id": 2056,
                             "name": "timelyIndex",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
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-                            "src": "17784:11:6",
+                            "referencedDeclaration": 2035,
+                            "src": "17814:11:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -48746,29 +48778,29 @@
                           "isPure": false,
                           "lValueRequested": false,
                           "nodeType": "IndexAccess",
-                          "src": "17776:20:6",
+                          "src": "17806:20:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "17761:35:6"
+                        "src": "17791:35:6"
                       },
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                         "assignments": [
-                          2061
+                          2063
                         ],
                         "declarations": [
                           {
                             "constant": false,
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+                            "id": 2063,
                             "mutability": "mutable",
                             "name": "cc",
-                            "nameLocation": "17827:2:6",
+                            "nameLocation": "17857:2:6",
                             "nodeType": "VariableDeclaration",
-                            "scope": 2090,
-                            "src": "17810:19:6",
+                            "scope": 2092,
+                            "src": "17840:19:6",
                             "stateVariable": false,
                             "storageLocation": "storage",
                             "typeDescriptions": {
@@ -48777,25 +48809,25 @@
                             },
                             "typeName": {
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+                                "id": 2061,
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+                                  "id": 2060,
                                   "name": "Commit",
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-                                  "src": "17810:6:6"
+                                  "src": "17840:6:6"
                                 },
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-                                "src": "17810:6:6",
+                                "src": "17840:6:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                   "typeString": "struct ONEWallet.Commit"
                                 }
                               },
-                              "id": 2060,
+                              "id": 2062,
                               "nodeType": "ArrayTypeName",
-                              "src": "17810:8:6",
+                              "src": "17840:8:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit[]"
@@ -48804,28 +48836,28 @@
                             "visibility": "internal"
                           }
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+                        "id": 2067,
                         "initialValue": {
                           "baseExpression": {
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+                            "id": 2064,
                             "name": "commitLocker",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 513,
-                            "src": "17832:12:6",
+                            "src": "17862:12:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                               "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
                             }
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                             "name": "hash",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2052,
-                            "src": "17845:4:6",
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+                            "src": "17875:4:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
@@ -48836,14 +48868,14 @@
                           "isPure": false,
                           "lValueRequested": false,
                           "nodeType": "IndexAccess",
-                          "src": "17832:18:6",
+                          "src": "17862:18:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                             "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "17810:40:6"
+                        "src": "17840:40:6"
                       },
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                         "condition": {
@@ -48851,32 +48883,32 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
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+                          "id": 2071,
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                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2061,
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+                              "referencedDeclaration": 2063,
+                              "src": "17996:2:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                               }
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                             "memberName": "length",
                             "nodeType": "MemberAccess",
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+                            "src": "17996:9:6",
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                               "typeString": "uint256"
@@ -48886,56 +48918,56 @@
                           "operator": "==",
                           "rightExpression": {
                             "hexValue": "30",
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                             "kind": "number",
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                             "nodeType": "Literal",
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                               "typeString": "int_const 0"
                             },
                             "value": "0"
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-                          "src": "17966:14:6",
+                          "src": "17996:14:6",
                           "typeDescriptions": {
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                             "typeString": "bool"
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                               "nodeType": "Continue",
-                              "src": "18000:8:6"
+                              "src": "18030:8:6"
                             }
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                         "assignments": [
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                             "name": "c",
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@@ -48943,17 +48975,17 @@
                               "typeString": "struct ONEWallet.Commit"
                             },
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                               "nodeType": "UserDefinedTypeName",
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                                 "typeString": "struct ONEWallet.Commit"
@@ -48962,31 +48994,31 @@
                             "visibility": "internal"
                           }
                         ],
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+                        "id": 2081,
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                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                             }
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                               "typeString": "int_const 0"
@@ -48998,19 +49030,19 @@
                           "isPure": false,
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                           "nodeType": "IndexAccess",
-                          "src": "18487:5:6",
+                          "src": "18517:5:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_struct$_Commit_$504_storage",
                             "typeString": "struct ONEWallet.Commit storage ref"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
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                         "nodeType": "UncheckedBlock",
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@@ -49018,25 +49050,25 @@
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
                               },
-                              "id": 2085,
+                              "id": 2087,
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                               "leftExpression": {
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-                                  "id": 2080,
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                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2075,
-                                  "src": "18530:1:6",
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                                   "typeDescriptions": {
                                     "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                     "typeString": "struct ONEWallet.Commit storage pointer"
                                   }
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+                                "id": 2083,
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@@ -49044,7 +49076,7 @@
                                 "memberName": "timestamp",
                                 "nodeType": "MemberAccess",
                                 "referencedDeclaration": 501,
-                                "src": "18530:11:6",
+                                "src": "18560:11:6",
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                                   "typeString": "uint32"
@@ -49057,18 +49089,18 @@
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
                                 },
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+                                  "id": 2084,
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-                                  "referencedDeclaration": 2037,
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                                     "typeString": "uint32"
@@ -49077,41 +49109,41 @@
                                 "nodeType": "BinaryOperation",
                                 "operator": "-",
                                 "rightExpression": {
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                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
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-                                  "src": "18550:16:6",
+                                  "src": "18580:16:6",
                                   "typeDescriptions": {
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                                     "typeString": "uint32"
                                   }
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-                                "src": "18545:21:6",
+                                "src": "18575:21:6",
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                                   "typeString": "uint32"
                                 }
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-                              "src": "18530:36:6",
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                                 "typeString": "bool"
                               }
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@@ -49125,18 +49157,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
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                         "typeString": "uint32"
@@ -49146,40 +49178,40 @@
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                     "rightExpression": {
                       "expression": {
-                        "id": 2045,
+                        "id": 2047,
                         "name": "commits",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 507,
-                        "src": "17716:7:6",
+                        "src": "17746:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_bytes32_$dyn_storage",
                           "typeString": "bytes32[] storage ref"
                         }
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                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "17716:14:6",
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                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "17702:28:6",
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                       "typeString": "bool"
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@@ -49187,14 +49219,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "17732:13:6",
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                       "subExpression": {
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                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2033,
-                        "src": "17732:11:6",
+                        "referencedDeclaration": 2035,
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                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -49205,12 +49237,12 @@
                         "typeString": "uint32"
                       }
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@@ -49218,18 +49250,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
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                     "leftExpression": {
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                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -49239,63 +49271,63 @@
                     "operator": "==",
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                       "hexValue": "30",
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                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "18800:1:6",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
                       },
                       "value": "0"
                     },
-                    "src": "18785:16:6",
+                    "src": "18815:16:6",
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                       "typeString": "bool"
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                     "statements": [
                       {
-                        "functionReturnParameters": 2031,
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+                        "functionReturnParameters": 2033,
+                        "id": 2097,
                         "nodeType": "Return",
-                        "src": "18923:7:6"
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                 },
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+                    "src": "19126:240:6",
                     "statements": [
                       {
                         "assignments": [
-                          2109
+                          2111
                         ],
                         "declarations": [
                           {
                             "constant": false,
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+                            "id": 2111,
                             "mutability": "mutable",
                             "name": "hash",
-                            "nameLocation": "19118:4:6",
+                            "nameLocation": "19148:4:6",
                             "nodeType": "VariableDeclaration",
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-                            "src": "19110:12:6",
+                            "scope": 2148,
+                            "src": "19140:12:6",
                             "stateVariable": false,
                             "storageLocation": "default",
                             "typeDescriptions": {
@@ -49303,10 +49335,10 @@
                               "typeString": "bytes32"
                             },
                             "typeName": {
-                              "id": 2108,
+                              "id": 2110,
                               "name": "bytes32",
                               "nodeType": "ElementaryTypeName",
-                              "src": "19110:7:6",
+                              "src": "19140:7:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -49315,28 +49347,28 @@
                             "visibility": "internal"
                           }
                         ],
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+                        "id": 2115,
                         "initialValue": {
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+                            "id": 2112,
                             "name": "commits",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 507,
-                            "src": "19125:7:6",
+                            "src": "19155:7:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_bytes32_$dyn_storage",
                               "typeString": "bytes32[] storage ref"
                             }
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                             "name": "i",
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                               "typeString": "uint32"
@@ -49347,29 +49379,29 @@
                           "isPure": false,
                           "lValueRequested": false,
                           "nodeType": "IndexAccess",
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+                          "src": "19155:10:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "19110:25:6"
+                        "src": "19140:25:6"
                       },
                       {
                         "assignments": [
-                          2118
+                          2120
                         ],
                         "declarations": [
                           {
                             "constant": false,
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+                            "id": 2120,
                             "mutability": "mutable",
                             "name": "cc",
-                            "nameLocation": "19166:2:6",
+                            "nameLocation": "19196:2:6",
                             "nodeType": "VariableDeclaration",
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-                            "src": "19149:19:6",
+                            "scope": 2148,
+                            "src": "19179:19:6",
                             "stateVariable": false,
                             "storageLocation": "storage",
                             "typeDescriptions": {
@@ -49378,25 +49410,25 @@
                             },
                             "typeName": {
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-                                "id": 2116,
+                                "id": 2118,
                                 "nodeType": "UserDefinedTypeName",
                                 "pathNode": {
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+                                  "id": 2117,
                                   "name": "Commit",
                                   "nodeType": "IdentifierPath",
                                   "referencedDeclaration": 504,
-                                  "src": "19149:6:6"
+                                  "src": "19179:6:6"
                                 },
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-                                "src": "19149:6:6",
+                                "src": "19179:6:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                   "typeString": "struct ONEWallet.Commit"
                                 }
                               },
-                              "id": 2117,
+                              "id": 2119,
                               "nodeType": "ArrayTypeName",
-                              "src": "19149:8:6",
+                              "src": "19179:8:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit[]"
@@ -49405,28 +49437,28 @@
                             "visibility": "internal"
                           }
                         ],
-                        "id": 2122,
+                        "id": 2124,
                         "initialValue": {
                           "baseExpression": {
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+                            "id": 2121,
                             "name": "commitLocker",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 513,
-                            "src": "19171:12:6",
+                            "src": "19201:12:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                               "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
                             }
                           },
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+                          "id": 2123,
                           "indexExpression": {
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+                            "id": 2122,
                             "name": "hash",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2109,
-                            "src": "19184:4:6",
+                            "referencedDeclaration": 2111,
+                            "src": "19214:4:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
@@ -49437,24 +49469,24 @@
                           "isPure": false,
                           "lValueRequested": false,
                           "nodeType": "IndexAccess",
-                          "src": "19171:18:6",
+                          "src": "19201:18:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                             "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "19149:40:6"
+                        "src": "19179:40:6"
                       },
                       {
                         "body": {
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+                          "id": 2141,
                           "nodeType": "Block",
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+                          "src": "19272:45:6",
                           "statements": [
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@@ -49462,28 +49494,28 @@
                                 "nodeType": "UnaryOperation",
                                 "operator": "delete",
                                 "prefix": true,
-                                "src": "19260:12:6",
+                                "src": "19290:12:6",
                                 "subExpression": {
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+                                    "id": 2136,
                                     "name": "cc",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2118,
-                                    "src": "19267:2:6",
+                                    "referencedDeclaration": 2120,
+                                    "src": "19297:2:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                       "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                                     }
                                   },
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                                     "name": "j",
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                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2124,
-                                    "src": "19270:1:6",
+                                    "referencedDeclaration": 2126,
+                                    "src": "19300:1:6",
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                                       "typeString": "uint32"
@@ -49494,7 +49526,7 @@
                                   "isPure": false,
                                   "lValueRequested": true,
                                   "nodeType": "IndexAccess",
-                                  "src": "19267:5:6",
+                                  "src": "19297:5:6",
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                                     "typeIdentifier": "t_struct$_Commit_$504_storage",
                                     "typeString": "struct ONEWallet.Commit storage ref"
@@ -49505,9 +49537,9 @@
                                   "typeString": "tuple()"
                                 }
                               },
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+                              "id": 2140,
                               "nodeType": "ExpressionStatement",
-                              "src": "19260:12:6"
+                              "src": "19290:12:6"
                             }
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                         },
@@ -49516,18 +49548,18 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
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+                          "id": 2132,
                           "isConstant": false,
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                           "lValueRequested": false,
                           "leftExpression": {
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+                            "id": 2129,
                             "name": "j",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2124,
-                            "src": "19222:1:6",
+                            "referencedDeclaration": 2126,
+                            "src": "19252:1:6",
                             "typeDescriptions": {
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                               "typeString": "uint32"
@@ -49537,51 +49569,51 @@
                           "operator": "<",
                           "rightExpression": {
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+                              "id": 2130,
                               "name": "cc",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
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-                              "src": "19226:2:6",
+                              "referencedDeclaration": 2120,
+                              "src": "19256:2:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                               }
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+                            "id": 2131,
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                             "lValueRequested": false,
                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "19226:9:6",
+                            "src": "19256:9:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "19222:13:6",
+                          "src": "19252:13:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
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+                        "id": 2142,
                         "initializationExpression": {
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+                            2126
                           ],
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+                              "id": 2126,
                               "mutability": "mutable",
                               "name": "j",
-                              "nameLocation": "19215:1:6",
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+                              "src": "19238:8:6",
                               "stateVariable": false,
                               "storageLocation": "default",
                               "typeDescriptions": {
@@ -49589,10 +49621,10 @@
                                 "typeString": "uint32"
                               },
                               "typeName": {
-                                "id": 2123,
+                                "id": 2125,
                                 "name": "uint32",
                                 "nodeType": "ElementaryTypeName",
-                                "src": "19208:6:6",
+                                "src": "19238:6:6",
                                 "typeDescriptions": {
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                                   "typeString": "uint32"
@@ -49601,17 +49633,17 @@
                               "visibility": "internal"
                             }
                           ],
-                          "id": 2126,
+                          "id": 2128,
                           "initialValue": {
                             "hexValue": "30",
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                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "19219:1:6",
+                            "src": "19249:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_0_by_1",
                               "typeString": "int_const 0"
@@ -49619,11 +49651,11 @@
                             "value": "0"
                           },
                           "nodeType": "VariableDeclarationStatement",
-                          "src": "19208:12:6"
+                          "src": "19238:12:6"
                         },
                         "loopExpression": {
                           "expression": {
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+                            "id": 2134,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -49631,14 +49663,14 @@
                             "nodeType": "UnaryOperation",
                             "operator": "++",
                             "prefix": false,
-                            "src": "19237:3:6",
+                            "src": "19267:3:6",
                             "subExpression": {
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                               "name": "j",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2124,
-                              "src": "19237:1:6",
+                              "referencedDeclaration": 2126,
+                              "src": "19267:1:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -49649,16 +49681,16 @@
                               "typeString": "uint32"
                             }
                           },
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+                          "id": 2135,
                           "nodeType": "ExpressionStatement",
-                          "src": "19237:3:6"
+                          "src": "19267:3:6"
                         },
                         "nodeType": "ForStatement",
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                       },
                       {
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+                          "id": 2146,
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@@ -49666,28 +49698,28 @@
                           "nodeType": "UnaryOperation",
                           "operator": "delete",
                           "prefix": true,
-                          "src": "19300:25:6",
+                          "src": "19330:25:6",
                           "subExpression": {
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+                              "id": 2143,
                               "name": "commitLocker",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 513,
-                              "src": "19307:12:6",
+                              "src": "19337:12:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                                 "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
                               }
                             },
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+                            "id": 2145,
                             "indexExpression": {
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+                              "id": 2144,
                               "name": "hash",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2109,
-                              "src": "19320:4:6",
+                              "referencedDeclaration": 2111,
+                              "src": "19350:4:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -49698,7 +49730,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "19307:18:6",
+                            "src": "19337:18:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
@@ -49709,9 +49741,9 @@
                             "typeString": "tuple()"
                           }
                         },
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+                        "id": 2147,
                         "nodeType": "ExpressionStatement",
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                       }
                     ]
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@@ -49720,18 +49752,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
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-                      "src": "19074:1:6",
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                       "typeDescriptions": {
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                         "typeString": "uint32"
@@ -49740,38 +49772,38 @@
                     "nodeType": "BinaryOperation",
                     "operator": "<",
                     "rightExpression": {
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+                      "id": 2105,
                       "name": "timelyIndex",
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                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2033,
-                      "src": "19078:11:6",
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+                      "src": "19108:11:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "19074:15:6",
+                    "src": "19104:15:6",
                     "typeDescriptions": {
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                       "typeString": "bool"
                     }
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+                      2101
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                     "declarations": [
                       {
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-                        "id": 2099,
+                        "id": 2101,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "19067:1:6",
+                        "nameLocation": "19097:1:6",
                         "nodeType": "VariableDeclaration",
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-                        "src": "19060:8:6",
+                        "scope": 2149,
+                        "src": "19090:8:6",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -49779,10 +49811,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 2098,
+                          "id": 2100,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "19060:6:6",
+                          "src": "19090:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -49791,17 +49823,17 @@
                         "visibility": "internal"
                       }
                     ],
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+                    "id": 2103,
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                       "hexValue": "30",
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                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "19071:1:6",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -49809,11 +49841,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "19060:12:6"
+                    "src": "19090:12:6"
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                       "isPure": false,
@@ -49821,14 +49853,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "19091:3:6",
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                       "subExpression": {
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                         "overloadedDeclarations": [],
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-                        "src": "19091:1:6",
+                        "referencedDeclaration": 2101,
+                        "src": "19121:1:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -49839,27 +49871,27 @@
                         "typeString": "uint32"
                       }
                     },
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+                      "src": "19551:10:6",
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@@ -49867,10 +49899,10 @@
                         "typeString": "uint32"
                       },
                       "typeName": {
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+                        "id": 2150,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "19521:6:6",
+                        "src": "19551:6:6",
                         "typeDescriptions": {
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                           "typeString": "uint32"
@@ -49879,30 +49911,30 @@
                       "visibility": "internal"
                     }
                   ],
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+                  "id": 2157,
                   "initialValue": {
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                       {
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                           "name": "commits",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 507,
-                          "src": "19541:7:6",
+                          "src": "19571:7:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_array$_t_bytes32_$dyn_storage",
                             "typeString": "bytes32[] storage ref"
                           }
                         },
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+                        "id": 2155,
                         "isConstant": false,
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                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "length",
                         "nodeType": "MemberAccess",
-                        "src": "19541:14:6",
+                        "src": "19571:14:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -49916,26 +49948,26 @@
                           "typeString": "uint256"
                         }
                       ],
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                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "ElementaryTypeNameExpression",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_type$_t_uint32_$",
                         "typeString": "type(uint32)"
                       },
                       "typeName": {
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+                        "id": 2152,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "19534:6:6",
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                         "typeDescriptions": {}
                       }
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@@ -49943,7 +49975,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "19534:22:6",
+                    "src": "19564:22:6",
                     "tryCall": false,
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                       "typeIdentifier": "t_uint32",
@@ -49951,57 +49983,57 @@
                     }
                   },
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+                  "src": "19551:35:6"
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                         "nodeType": "UncheckedBlock",
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                               "leftHandSide": {
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+                                  "id": 2168,
                                   "name": "commits",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 507,
-                                  "src": "19642:7:6",
+                                  "src": "19672:7:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_array$_t_bytes32_$dyn_storage",
                                     "typeString": "bytes32[] storage ref"
                                   }
                                 },
-                                "id": 2170,
+                                "id": 2172,
                                 "indexExpression": {
                                   "commonType": {
                                     "typeIdentifier": "t_uint32",
                                     "typeString": "uint32"
                                   },
-                                  "id": 2169,
+                                  "id": 2171,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "leftExpression": {
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+                                    "id": 2169,
                                     "name": "i",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2157,
-                                    "src": "19650:1:6",
+                                    "referencedDeclaration": 2159,
+                                    "src": "19680:1:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
@@ -50010,18 +50042,18 @@
                                   "nodeType": "BinaryOperation",
                                   "operator": "-",
                                   "rightExpression": {
-                                    "id": 2168,
+                                    "id": 2170,
                                     "name": "timelyIndex",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2033,
-                                    "src": "19654:11:6",
+                                    "referencedDeclaration": 2035,
+                                    "src": "19684:11:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
                                     }
                                   },
-                                  "src": "19650:15:6",
+                                  "src": "19680:15:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint32",
                                     "typeString": "uint32"
@@ -50032,7 +50064,7 @@
                                 "isPure": false,
                                 "lValueRequested": true,
                                 "nodeType": "IndexAccess",
-                                "src": "19642:24:6",
+                                "src": "19672:24:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -50042,25 +50074,25 @@
                               "operator": "=",
                               "rightHandSide": {
                                 "baseExpression": {
-                                  "id": 2171,
+                                  "id": 2173,
                                   "name": "commits",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 507,
-                                  "src": "19669:7:6",
+                                  "src": "19699:7:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_array$_t_bytes32_$dyn_storage",
                                     "typeString": "bytes32[] storage ref"
                                   }
                                 },
-                                "id": 2173,
+                                "id": 2175,
                                 "indexExpression": {
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+                                  "id": 2174,
                                   "name": "i",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2157,
-                                  "src": "19677:1:6",
+                                  "referencedDeclaration": 2159,
+                                  "src": "19707:1:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint32",
                                     "typeString": "uint32"
@@ -50071,21 +50103,21 @@
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "nodeType": "IndexAccess",
-                                "src": "19669:10:6",
+                                "src": "19699:10:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
                                 }
                               },
-                              "src": "19642:37:6",
+                              "src": "19672:37:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
                               }
                             },
-                            "id": 2175,
+                            "id": 2177,
                             "nodeType": "ExpressionStatement",
-                            "src": "19642:37:6"
+                            "src": "19672:37:6"
                           }
                         ]
                       }
@@ -50096,18 +50128,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
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+                    "id": 2164,
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                     "isLValue": false,
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                     "lValueRequested": false,
                     "leftExpression": {
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                       "overloadedDeclarations": [],
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+                      "referencedDeclaration": 2159,
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                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -50116,38 +50148,38 @@
                     "nodeType": "BinaryOperation",
                     "operator": "<",
                     "rightExpression": {
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+                      "id": 2163,
                       "name": "len",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2149,
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+                      "src": "19629:3:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "19595:7:6",
+                    "src": "19625:7:6",
                     "typeDescriptions": {
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                       "typeString": "bool"
                     }
                   },
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+                  "id": 2180,
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+                      2159
                     ],
                     "declarations": [
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                         "constant": false,
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+                        "id": 2159,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "19578:1:6",
+                        "nameLocation": "19608:1:6",
                         "nodeType": "VariableDeclaration",
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-                        "src": "19571:8:6",
+                        "scope": 2180,
+                        "src": "19601:8:6",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -50155,10 +50187,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 2156,
+                          "id": 2158,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "19571:6:6",
+                          "src": "19601:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -50167,25 +50199,25 @@
                         "visibility": "internal"
                       }
                     ],
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                       "name": "timelyIndex",
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-                      "src": "19582:11:6",
+                      "referencedDeclaration": 2035,
+                      "src": "19612:11:6",
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                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "19571:22:6"
+                    "src": "19601:22:6"
                   },
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@@ -50193,14 +50225,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "19604:3:6",
+                      "src": "19634:3:6",
                       "subExpression": {
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                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
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-                        "src": "19604:1:6",
+                        "referencedDeclaration": 2159,
+                        "src": "19634:1:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -50211,18 +50243,18 @@
                         "typeString": "uint32"
                       }
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@@ -50230,31 +50262,31 @@
                           "expression": {
                             "argumentTypes": [],
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                               "name": "commits",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 507,
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+                              "src": "19794:7:6",
                               "typeDescriptions": {
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                                 "typeString": "bytes32[] storage ref"
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                             "memberName": "pop",
                             "nodeType": "MemberAccess",
-                            "src": "19764:11:6",
+                            "src": "19794:11:6",
                             "typeDescriptions": {
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                               "typeString": "function (bytes32[] storage pointer)"
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@@ -50262,16 +50294,16 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "19764:13:6",
+                          "src": "19794:13:6",
                           "tryCall": false,
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                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
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                         },
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+                        "id": 2195,
                         "nodeType": "ExpressionStatement",
-                        "src": "19764:13:6"
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@@ -50280,18 +50312,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
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@@ -50300,38 +50332,38 @@
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                       "name": "timelyIndex",
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                         "typeString": "uint32"
                       }
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                         "nodeType": "VariableDeclaration",
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-                        "src": "19714:8:6",
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+                        "src": "19744:8:6",
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@@ -50339,10 +50371,10 @@
                           "typeString": "uint32"
                         },
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+                          "id": 2181,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "19714:6:6",
+                          "src": "19744:6:6",
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                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -50351,17 +50383,17 @@
                         "visibility": "internal"
                       }
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                       "kind": "number",
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                       "nodeType": "Literal",
-                      "src": "19725:1:6",
+                      "src": "19755:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -50369,11 +50401,11 @@
                       "value": "0"
                     },
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@@ -50381,14 +50413,14 @@
                       "nodeType": "UnaryOperation",
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                       "prefix": false,
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                         "typeDescriptions": {
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                           "typeString": "uint32"
@@ -50399,51 +50431,51 @@
                         "typeString": "uint32"
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+              "id": 2031,
               "nodeType": "StructuredDocumentation",
-              "src": "16960:444:6",
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               "text": "Remove old commits from storage, where the commit's timestamp is older than block.timestamp - REVEAL_MAX_DELAY. The purpose is to remove dangling data from blockchain, and prevent commits grow unbounded. This is executed at commit time. The committer pays for the gas of this cleanup. Therefore, any attacker who intend to spam commits would be disincentivized. The attacker would not succeed in preventing any normal operation by the user."
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             "name": "_cleanupCommits",
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@@ -50451,7 +50483,7 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
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@@ -50461,7 +50493,7 @@
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       },
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@@ -50470,25 +50502,25 @@
                         "arguments": [
                           {
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+                              "id": 2208,
                               "name": "block",
                               "nodeType": "Identifier",
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                               "referencedDeclaration": 4294967292,
-                              "src": "20045:5:6",
+                              "src": "20075:5:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_magic_block",
                                 "typeString": "block"
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                             },
-                            "id": 2207,
+                            "id": 2209,
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                             "lValueRequested": false,
                             "memberName": "timestamp",
                             "nodeType": "MemberAccess",
-                            "src": "20045:15:6",
+                            "src": "20075:15:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -50502,26 +50534,26 @@
                               "typeString": "uint256"
                             }
                           ],
-                          "id": 2205,
+                          "id": 2207,
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                           "lValueRequested": false,
                           "nodeType": "ElementaryTypeNameExpression",
-                          "src": "20038:6:6",
+                          "src": "20068:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_type$_t_uint32_$",
                             "typeString": "type(uint32)"
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                           "typeName": {
-                            "id": 2204,
+                            "id": 2206,
                             "name": "uint32",
                             "nodeType": "ElementaryTypeName",
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+                            "src": "20068:6:6",
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@@ -50529,7 +50561,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "20038:23:6",
+                        "src": "20068:23:6",
                         "tryCall": false,
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@@ -50539,18 +50571,18 @@
                       "nodeType": "BinaryOperation",
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                       "rightExpression": {
-                        "id": 2209,
+                        "id": 2211,
                         "name": "commitTime",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2199,
-                        "src": "20064:10:6",
+                        "referencedDeclaration": 2201,
+                        "src": "20094:10:6",
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                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
                         }
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                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -50559,50 +50591,50 @@
                     "nodeType": "BinaryOperation",
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+                      "id": 2213,
                       "name": "REVEAL_MAX_DELAY",
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                       "overloadedDeclarations": [],
                       "referencedDeclaration": 469,
-                      "src": "20077:16:6",
+                      "src": "20107:16:6",
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                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
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-                    "src": "20038:55:6",
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                       "typeIdentifier": "t_bool",
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             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_isRevealTimely",
-            "nameLocation": "19953:15:6",
+            "nameLocation": "19983:15:6",
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+                  "id": 2201,
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@@ -50610,10 +50642,10 @@
                     "typeString": "uint32"
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@@ -50622,21 +50654,21 @@
                   "visibility": "internal"
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@@ -50644,10 +50676,10 @@
                     "typeString": "bool"
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@@ -50656,34 +50688,34 @@
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+              "id": 2369,
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@@ -50691,10 +50723,10 @@
                         "typeString": "uint32"
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@@ -50703,24 +50735,24 @@
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@@ -50729,40 +50761,40 @@
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@@ -50770,10 +50802,10 @@
                         "typeString": "uint8"
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@@ -50782,7 +50814,7 @@
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@@ -50790,18 +50822,18 @@
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@@ -50810,18 +50842,18 @@
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@@ -50835,26 +50867,26 @@
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@@ -50870,22 +50902,22 @@
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@@ -50894,25 +50926,25 @@
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@@ -50921,28 +50953,28 @@
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@@ -50953,14 +50985,14 @@
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@@ -50970,32 +51002,32 @@
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@@ -51005,21 +51037,21 @@
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@@ -51027,14 +51059,14 @@
                       },
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@@ -51053,7 +51085,7 @@
                           "typeString": "literal_string \"No commit found\""
                         }
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@@ -51061,13 +51093,13 @@
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@@ -51075,37 +51107,37 @@
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@@ -51113,17 +51145,17 @@
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@@ -51132,28 +51164,28 @@
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@@ -51164,29 +51196,29 @@
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                             "name": "expectedVerificationHash",
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@@ -51194,10 +51226,10 @@
                               "typeString": "bytes32"
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@@ -51206,25 +51238,25 @@
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@@ -51232,19 +51264,19 @@
                                   "memberName": "paramsHash",
                                   "nodeType": "MemberAccess",
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                                     "typeString": "bytes32"
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@@ -51263,39 +51295,39 @@
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                                     "typeString": "type(bytes storage pointer)"
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@@ -51318,18 +51350,18 @@
                                 "typeString": "bytes memory"
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@@ -51337,7 +51369,7 @@
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@@ -51345,7 +51377,7 @@
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@@ -51353,25 +51385,25 @@
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@@ -51379,7 +51411,7 @@
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@@ -51388,35 +51420,35 @@
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@@ -51429,25 +51461,25 @@
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                                     "typeString": "struct ONEWallet.Commit storage pointer"
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@@ -51455,7 +51487,7 @@
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@@ -51464,18 +51496,18 @@
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@@ -51483,14 +51515,14 @@
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@@ -51509,7 +51541,7 @@
                                 "typeString": "literal_string \"Parameter hash mismatch\""
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@@ -51517,13 +51549,13 @@
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@@ -51531,432 +51563,501 @@
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-                            "typeString": "uint32"
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+                            "typeString": "enum ONEWallet.OperationType"
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+                              "typeString": "enum ONEWallet.OperationType"
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@@ -52210,18 +52311,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2268,
+                    "id": 2273,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 2265,
+                      "id": 2270,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2262,
-                      "src": "20783:1:6",
+                      "referencedDeclaration": 2267,
+                      "src": "20842:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -52231,51 +52332,51 @@
                     "operator": "<",
                     "rightExpression": {
                       "expression": {
-                        "id": 2266,
+                        "id": 2271,
                         "name": "cc",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2248,
-                        "src": "20787:2:6",
+                        "referencedDeclaration": 2253,
+                        "src": "20846:2:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                           "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                         }
                       },
-                      "id": 2267,
+                      "id": 2272,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "20787:9:6",
+                      "src": "20846:9:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "20783:13:6",
+                    "src": "20842:13:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2353,
+                  "id": 2364,
                   "initializationExpression": {
                     "assignments": [
-                      2262
+                      2267
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 2262,
+                        "id": 2267,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "20776:1:6",
+                        "nameLocation": "20835:1:6",
                         "nodeType": "VariableDeclaration",
-                        "scope": 2353,
-                        "src": "20769:8:6",
+                        "scope": 2364,
+                        "src": "20828:8:6",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -52283,10 +52384,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
-                          "id": 2261,
+                          "id": 2266,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "20769:6:6",
+                          "src": "20828:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -52295,17 +52396,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2264,
+                    "id": 2269,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 2263,
+                      "id": 2268,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "20780:1:6",
+                      "src": "20839:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -52313,11 +52414,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "20769:12:6"
+                    "src": "20828:12:6"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 2270,
+                      "id": 2275,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -52325,14 +52426,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "20798:3:6",
+                      "src": "20857:3:6",
                       "subExpression": {
-                        "id": 2269,
+                        "id": 2274,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2262,
-                        "src": "20798:1:6",
+                        "referencedDeclaration": 2267,
+                        "src": "20857:1:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -52343,26 +52444,26 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 2271,
+                    "id": 2276,
                     "nodeType": "ExpressionStatement",
-                    "src": "20798:3:6"
+                    "src": "20857:3:6"
                   },
                   "nodeType": "ForStatement",
-                  "src": "20764:1209:6"
+                  "src": "20823:1297:6"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
                         "hexValue": "4e6f2076616c696420636f6d6d6974",
-                        "id": 2355,
+                        "id": 2366,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "21989:17:6",
+                        "src": "22136:17:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_c3972966c6b890cd04bd250ec8fd05d1950759334a3d8fa4e9bb3d0693e9952d",
                           "typeString": "literal_string \"No valid commit\""
@@ -52377,7 +52478,7 @@
                           "typeString": "literal_string \"No valid commit\""
                         }
                       ],
-                      "id": 2354,
+                      "id": 2365,
                       "name": "revert",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
@@ -52385,13 +52486,13 @@
                         4294967277
                       ],
                       "referencedDeclaration": 4294967277,
-                      "src": "21982:6:6",
+                      "src": "22129:6:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_revert_pure$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (string memory) pure"
                       }
                     },
-                    "id": 2356,
+                    "id": 2367,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -52399,45 +52500,45 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "21982:25:6",
+                    "src": "22129:25:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2357,
+                  "id": 2368,
                   "nodeType": "ExpressionStatement",
-                  "src": "21982:25:6"
+                  "src": "22129:25:6"
                 }
               ]
             },
             "documentation": {
-              "id": 2216,
+              "id": 2218,
               "nodeType": "StructuredDocumentation",
-              "src": "20106:275:6",
+              "src": "20136:275:6",
               "text": "This function verifies that the first valid entry with respect to the given `eotp` in `commitLocker[hash]` matches the provided `paramsHash` and `verificationHash`. An entry is valid with respect to `eotp` iff `h3(entry.paramsHash . eotp)` equals `entry.verificationHash`"
             },
-            "id": 2359,
+            "id": 2370,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_verifyReveal",
-            "nameLocation": "20395:13:6",
+            "nameLocation": "20425:13:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2225,
+              "id": 2230,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2218,
+                  "id": 2220,
                   "mutability": "mutable",
                   "name": "hash",
-                  "nameLocation": "20417:4:6",
+                  "nameLocation": "20447:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2359,
-                  "src": "20409:12:6",
+                  "scope": 2370,
+                  "src": "20439:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -52445,10 +52546,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 2217,
+                    "id": 2219,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "20409:7:6",
+                    "src": "20439:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -52458,13 +52559,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2220,
+                  "id": 2222,
                   "mutability": "mutable",
                   "name": "indexWithNonce",
-                  "nameLocation": "20430:14:6",
+                  "nameLocation": "20460:14:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2359,
-                  "src": "20423:21:6",
+                  "scope": 2370,
+                  "src": "20453:21:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -52472,10 +52573,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 2219,
+                    "id": 2221,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "20423:6:6",
+                    "src": "20453:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -52485,13 +52586,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2222,
+                  "id": 2224,
                   "mutability": "mutable",
                   "name": "paramsHash",
-                  "nameLocation": "20454:10:6",
+                  "nameLocation": "20484:10:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2359,
-                  "src": "20446:18:6",
+                  "scope": 2370,
+                  "src": "20476:18:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -52499,10 +52600,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 2221,
+                    "id": 2223,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "20446:7:6",
+                    "src": "20476:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -52512,13 +52613,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2224,
+                  "id": 2226,
                   "mutability": "mutable",
                   "name": "eotp",
-                  "nameLocation": "20474:4:6",
+                  "nameLocation": "20504:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2359,
-                  "src": "20466:12:6",
+                  "scope": 2370,
+                  "src": "20496:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -52526,33 +52627,67 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 2223,
+                    "id": 2225,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "20466:7:6",
+                    "src": "20496:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
                     }
                   },
                   "visibility": "internal"
+                },
+                {
+                  "constant": false,
+                  "id": 2229,
+                  "mutability": "mutable",
+                  "name": "operationType",
+                  "nameLocation": "20524:13:6",
+                  "nodeType": "VariableDeclaration",
+                  "scope": 2370,
+                  "src": "20510:27:6",
+                  "stateVariable": false,
+                  "storageLocation": "default",
+                  "typeDescriptions": {
+                    "typeIdentifier": "t_enum$_OperationType_$493",
+                    "typeString": "enum ONEWallet.OperationType"
+                  },
+                  "typeName": {
+                    "id": 2228,
+                    "nodeType": "UserDefinedTypeName",
+                    "pathNode": {
+                      "id": 2227,
+                      "name": "OperationType",
+                      "nodeType": "IdentifierPath",
+                      "referencedDeclaration": 493,
+                      "src": "20510:13:6"
+                    },
+                    "referencedDeclaration": 493,
+                    "src": "20510:13:6",
+                    "typeDescriptions": {
+                      "typeIdentifier": "t_enum$_OperationType_$493",
+                      "typeString": "enum ONEWallet.OperationType"
+                    }
+                  },
+                  "visibility": "internal"
                 }
               ],
-              "src": "20408:71:6"
+              "src": "20438:100:6"
             },
             "returnParameters": {
-              "id": 2228,
+              "id": 2233,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2227,
+                  "id": 2232,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2359,
-                  "src": "20503:6:6",
+                  "scope": 2370,
+                  "src": "20562:6:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -52560,10 +52695,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 2226,
+                    "id": 2231,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "20503:6:6",
+                    "src": "20562:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -52572,34 +52707,34 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "20502:8:6"
+              "src": "20561:8:6"
             },
-            "scope": 2592,
-            "src": "20386:1628:6",
+            "scope": 2612,
+            "src": "20416:1745:6",
             "stateMutability": "view",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 2431,
+              "id": 2451,
               "nodeType": "Block",
-              "src": "22094:464:6",
+              "src": "22270:511:6",
               "statements": [
                 {
                   "assignments": [
-                    2370
+                    2384
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2370,
+                      "id": 2384,
                       "mutability": "mutable",
                       "name": "cc",
-                      "nameLocation": "22121:2:6",
+                      "nameLocation": "22297:2:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2431,
-                      "src": "22104:19:6",
+                      "scope": 2451,
+                      "src": "22280:19:6",
                       "stateVariable": false,
                       "storageLocation": "storage",
                       "typeDescriptions": {
@@ -52608,25 +52743,25 @@
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2368,
+                          "id": 2382,
                           "nodeType": "UserDefinedTypeName",
                           "pathNode": {
-                            "id": 2367,
+                            "id": 2381,
                             "name": "Commit",
                             "nodeType": "IdentifierPath",
                             "referencedDeclaration": 504,
-                            "src": "22104:6:6"
+                            "src": "22280:6:6"
                           },
                           "referencedDeclaration": 504,
-                          "src": "22104:6:6",
+                          "src": "22280:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                             "typeString": "struct ONEWallet.Commit"
                           }
                         },
-                        "id": 2369,
+                        "id": 2383,
                         "nodeType": "ArrayTypeName",
-                        "src": "22104:8:6",
+                        "src": "22280:8:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                           "typeString": "struct ONEWallet.Commit[]"
@@ -52635,28 +52770,28 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2374,
+                  "id": 2388,
                   "initialValue": {
                     "baseExpression": {
-                      "id": 2371,
+                      "id": 2385,
                       "name": "commitLocker",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 513,
-                      "src": "22126:12:6",
+                      "src": "22302:12:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                         "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
                       }
                     },
-                    "id": 2373,
+                    "id": 2387,
                     "indexExpression": {
-                      "id": 2372,
+                      "id": 2386,
                       "name": "commitHash",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2361,
-                      "src": "22139:10:6",
+                      "referencedDeclaration": 2372,
+                      "src": "22315:10:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bytes32",
                         "typeString": "bytes32"
@@ -52667,14 +52802,14 @@
                     "isPure": false,
                     "lValueRequested": false,
                     "nodeType": "IndexAccess",
-                    "src": "22126:24:6",
+                    "src": "22302:24:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                       "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "22104:46:6"
+                  "src": "22280:46:6"
                 },
                 {
                   "expression": {
@@ -52684,32 +52819,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 2379,
+                        "id": 2393,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 2376,
+                            "id": 2390,
                             "name": "cc",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2370,
-                            "src": "22168:2:6",
+                            "referencedDeclaration": 2384,
+                            "src": "22344:2:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                             }
                           },
-                          "id": 2377,
+                          "id": 2391,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "22168:9:6",
+                          "src": "22344:9:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -52719,21 +52854,21 @@
                         "operator": ">",
                         "rightExpression": {
                           "hexValue": "30",
-                          "id": 2378,
+                          "id": 2392,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "number",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "22180:1:6",
+                          "src": "22356:1:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_rational_0_by_1",
                             "typeString": "int_const 0"
                           },
                           "value": "0"
                         },
-                        "src": "22168:13:6",
+                        "src": "22344:13:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -52741,14 +52876,14 @@
                       },
                       {
                         "hexValue": "496e76616c696420636f6d6d69742068617368",
-                        "id": 2380,
+                        "id": 2394,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "22183:21:6",
+                        "src": "22359:21:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_8a9c0db4284cd81d8eaef3d877f21bcccab643ae503f9d63f7eb3ad5aacbe749",
                           "typeString": "literal_string \"Invalid commit hash\""
@@ -52767,7 +52902,7 @@
                           "typeString": "literal_string \"Invalid commit hash\""
                         }
                       ],
-                      "id": 2375,
+                      "id": 2389,
                       "name": "require",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
@@ -52775,13 +52910,13 @@
                         4294967278
                       ],
                       "referencedDeclaration": 4294967278,
-                      "src": "22160:7:6",
+                      "src": "22336:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (bool,string memory) pure"
                       }
                     },
-                    "id": 2381,
+                    "id": 2395,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -52789,16 +52924,16 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "22160:45:6",
+                    "src": "22336:45:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2382,
+                  "id": 2396,
                   "nodeType": "ExpressionStatement",
-                  "src": "22160:45:6"
+                  "src": "22336:45:6"
                 },
                 {
                   "expression": {
@@ -52808,32 +52943,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 2387,
+                        "id": 2401,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 2384,
+                            "id": 2398,
                             "name": "cc",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2370,
-                            "src": "22223:2:6",
+                            "referencedDeclaration": 2384,
+                            "src": "22399:2:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                             }
                           },
-                          "id": 2385,
+                          "id": 2399,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
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@@ -52842,18 +52977,18 @@
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@@ -52861,14 +52996,14 @@
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@@ -52941,17 +53076,17 @@
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@@ -53035,7 +53170,7 @@
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@@ -53045,290 +53180,69 @@
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@@ -53769,10 +54007,10 @@
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@@ -53781,17 +54019,17 @@
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                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "23015:23:6",
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                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
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+                    "id": 2485,
                     "nodeType": "Block",
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+                    "src": "23263:59:6",
                     "statements": [
                       {
                         "expression": {
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+                          "id": 2483,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
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                             "name": "indexMin",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2453,
-                            "src": "23054:8:6",
+                            "referencedDeclaration": 2473,
+                            "src": "23277:8:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -53878,18 +54116,18 @@
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
                             },
-                            "id": 2462,
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-                              "referencedDeclaration": 2447,
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+                              "referencedDeclaration": 2467,
+                              "src": "23288:18:6",
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                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -53898,50 +54136,50 @@
                             "nodeType": "BinaryOperation",
                             "operator": "-",
                             "rightExpression": {
-                              "id": 2461,
+                              "id": 2481,
                               "name": "t0",
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                               "overloadedDeclarations": [],
                               "referencedDeclaration": 443,
-                              "src": "23086:2:6",
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                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
                               }
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+                            "src": "23288:23:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
                             }
                           },
-                          "src": "23054:34:6",
+                          "src": "23277:34:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
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                         "nodeType": "ExpressionStatement",
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                       "mutability": "mutable",
                       "name": "nonZeroNonces",
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+                      "nameLocation": "23347:13:6",
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-                      "src": "23108:29:6",
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                       "storageLocation": "memory",
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@@ -53950,18 +54188,18 @@
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2469,
+                          "id": 2489,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "23108:6:6",
+                          "src": "23331:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
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+                        "id": 2490,
                         "nodeType": "ArrayTypeName",
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                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint32_$dyn_storage_ptr",
                           "typeString": "uint32[]"
@@ -53970,30 +54208,30 @@
                       "visibility": "internal"
                     }
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                   "initialValue": {
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                       {
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                           "name": "nonceTracker",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 466,
-                          "src": "23153:12:6",
+                          "src": "23376:12:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_array$_t_uint32_$dyn_storage",
                             "typeString": "uint32[] storage ref"
                           }
                         },
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                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "memberName": "length",
                         "nodeType": "MemberAccess",
-                        "src": "23153:19:6",
+                        "src": "23376:19:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -54007,38 +54245,38 @@
                           "typeString": "uint256"
                         }
                       ],
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                       "lValueRequested": false,
                       "nodeType": "NewExpression",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_function_objectcreation_pure$_t_uint256_$returns$_t_array$_t_uint32_$dyn_memory_ptr_$",
                         "typeString": "function (uint256) pure returns (uint32[] memory)"
                       },
                       "typeName": {
                         "baseType": {
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+                          "id": 2492,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "23144:6:6",
+                          "src": "23367:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
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+                        "id": 2493,
                         "nodeType": "ArrayTypeName",
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                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint32_$dyn_storage_ptr",
                           "typeString": "uint32[]"
                         }
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@@ -54046,7 +54284,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "23140:33:6",
+                    "src": "23363:33:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
@@ -54054,22 +54292,22 @@
                     }
                   },
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                       "mutability": "mutable",
                       "name": "numValidIndices",
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                       "nodeType": "VariableDeclaration",
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+                      "src": "23406:22:6",
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@@ -54077,10 +54315,10 @@
                         "typeString": "uint32"
                       },
                       "typeName": {
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+                        "id": 2499,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "23183:6:6",
+                        "src": "23406:6:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -54089,17 +54327,17 @@
                       "visibility": "internal"
                     }
                   ],
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                   "initialValue": {
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                     "isPure": true,
                     "kind": "number",
                     "lValueRequested": false,
                     "nodeType": "Literal",
-                    "src": "23208:1:6",
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                     "typeDescriptions": {
                       "typeIdentifier": "t_rational_0_by_1",
                       "typeString": "int_const 0"
@@ -54107,28 +54345,28 @@
                     "value": "0"
                   },
                   "nodeType": "VariableDeclarationStatement",
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+                  "src": "23406:26:6"
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+                          2515
                         ],
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                             "mutability": "mutable",
                             "name": "index",
-                            "nameLocation": "23288:5:6",
+                            "nameLocation": "23511:5:6",
                             "nodeType": "VariableDeclaration",
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-                            "src": "23281:12:6",
+                            "scope": 2541,
+                            "src": "23504:12:6",
                             "stateVariable": false,
                             "storageLocation": "default",
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@@ -54136,10 +54374,10 @@
                               "typeString": "uint32"
                             },
                             "typeName": {
-                              "id": 2494,
+                              "id": 2514,
                               "name": "uint32",
                               "nodeType": "ElementaryTypeName",
-                              "src": "23281:6:6",
+                              "src": "23504:6:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -54148,28 +54386,28 @@
                             "visibility": "internal"
                           }
                         ],
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+                        "id": 2519,
                         "initialValue": {
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                             "name": "nonceTracker",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 466,
-                            "src": "23296:12:6",
+                            "src": "23519:12:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_uint32_$dyn_storage",
                               "typeString": "uint32[] storage ref"
                             }
                           },
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                           "indexExpression": {
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                             "name": "i",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2484,
-                            "src": "23309:1:6",
+                            "referencedDeclaration": 2504,
+                            "src": "23532:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint8",
                               "typeString": "uint8"
@@ -54180,14 +54418,14 @@
                           "isPure": false,
                           "lValueRequested": false,
                           "nodeType": "IndexAccess",
-                          "src": "23296:15:6",
+                          "src": "23519:15:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "23281:30:6"
+                        "src": "23504:30:6"
                       },
                       {
                         "condition": {
@@ -54195,18 +54433,18 @@
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           },
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+                          "id": 2522,
                           "isConstant": false,
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                           "lValueRequested": false,
                           "leftExpression": {
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+                            "id": 2520,
                             "name": "index",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2495,
-                            "src": "23329:5:6",
+                            "referencedDeclaration": 2515,
+                            "src": "23552:5:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -54215,56 +54453,56 @@
                           "nodeType": "BinaryOperation",
                           "operator": "<",
                           "rightExpression": {
-                            "id": 2501,
+                            "id": 2521,
                             "name": "indexMin",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2453,
-                            "src": "23337:8:6",
+                            "referencedDeclaration": 2473,
+                            "src": "23560:8:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
                             }
                           },
-                          "src": "23329:16:6",
+                          "src": "23552:16:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
                         "falseBody": {
-                          "id": 2519,
+                          "id": 2539,
                           "nodeType": "Block",
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+                          "src": "23629:144:6",
                           "statements": [
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                                 "lValueRequested": false,
                                 "leftHandSide": {
                                   "baseExpression": {
-                                    "id": 2509,
+                                    "id": 2529,
                                     "name": "nonZeroNonces",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2471,
-                                    "src": "23424:13:6",
+                                    "referencedDeclaration": 2491,
+                                    "src": "23647:13:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
                                       "typeString": "uint32[] memory"
                                     }
                                   },
-                                  "id": 2511,
+                                  "id": 2531,
                                   "indexExpression": {
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                                     "name": "numValidIndices",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2480,
-                                    "src": "23438:15:6",
+                                    "referencedDeclaration": 2500,
+                                    "src": "23661:15:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
@@ -54275,7 +54513,7 @@
                                   "isPure": false,
                                   "lValueRequested": true,
                                   "nodeType": "IndexAccess",
-                                  "src": "23424:30:6",
+                                  "src": "23647:30:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint32",
                                     "typeString": "uint32"
@@ -54284,35 +54522,35 @@
                                 "nodeType": "Assignment",
                                 "operator": "=",
                                 "rightHandSide": {
-                                  "id": 2512,
+                                  "id": 2532,
                                   "name": "index",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 2495,
-                                  "src": "23457:5:6",
+                                  "referencedDeclaration": 2515,
+                                  "src": "23680:5:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint32",
                                     "typeString": "uint32"
                                   }
                                 },
-                                "src": "23424:38:6",
+                                "src": "23647:38:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
                                 }
                               },
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+                              "id": 2534,
                               "nodeType": "ExpressionStatement",
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+                              "src": "23647:38:6"
                             },
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                               "nodeType": "UncheckedBlock",
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                               "statements": [
                                 {
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                                     "isConstant": false,
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@@ -54320,14 +54558,14 @@
                                     "nodeType": "UnaryOperation",
                                     "operator": "++",
                                     "prefix": false,
-                                    "src": "23504:17:6",
+                                    "src": "23727:17:6",
                                     "subExpression": {
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+                                      "id": 2535,
                                       "name": "numValidIndices",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
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-                                      "src": "23504:15:6",
+                                      "referencedDeclaration": 2500,
+                                      "src": "23727:15:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint32",
                                         "typeString": "uint32"
@@ -54338,25 +54576,25 @@
                                       "typeString": "uint32"
                                     }
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+                                  "id": 2537,
                                   "nodeType": "ExpressionStatement",
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+                                  "src": "23727:17:6"
                                 }
                               ]
                             }
                           ]
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+                        "id": 2540,
                         "nodeType": "IfStatement",
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+                        "src": "23548:225:6",
                         "trueBody": {
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+                          "id": 2528,
                           "nodeType": "Block",
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@@ -54364,28 +54602,28 @@
                                 "nodeType": "UnaryOperation",
                                 "operator": "delete",
                                 "prefix": true,
-                                "src": "23365:20:6",
+                                "src": "23588:20:6",
                                 "subExpression": {
                                   "baseExpression": {
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+                                    "id": 2523,
                                     "name": "nonces",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 463,
-                                    "src": "23372:6:6",
+                                    "src": "23595:6:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_mapping$_t_uint32_$_t_uint8_$",
                                       "typeString": "mapping(uint32 => uint8)"
                                     }
                                   },
-                                  "id": 2505,
+                                  "id": 2525,
                                   "indexExpression": {
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+                                    "id": 2524,
                                     "name": "index",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2495,
-                                    "src": "23379:5:6",
+                                    "referencedDeclaration": 2515,
+                                    "src": "23602:5:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint32",
                                       "typeString": "uint32"
@@ -54396,7 +54634,7 @@
                                   "isPure": false,
                                   "lValueRequested": true,
                                   "nodeType": "IndexAccess",
-                                  "src": "23372:13:6",
+                                  "src": "23595:13:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint8",
                                     "typeString": "uint8"
@@ -54407,9 +54645,9 @@
                                   "typeString": "tuple()"
                                 }
                               },
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+                              "id": 2527,
                               "nodeType": "ExpressionStatement",
-                              "src": "23365:20:6"
+                              "src": "23588:20:6"
                             }
                           ]
                         }
@@ -54421,18 +54659,18 @@
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     },
-                    "id": 2490,
+                    "id": 2510,
                     "isConstant": false,
                     "isLValue": false,
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                     "leftExpression": {
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+                      "id": 2507,
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-                      "referencedDeclaration": 2484,
-                      "src": "23237:1:6",
+                      "referencedDeclaration": 2504,
+                      "src": "23460:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint8",
                         "typeString": "uint8"
@@ -54442,51 +54680,51 @@
                     "operator": "<",
                     "rightExpression": {
                       "expression": {
-                        "id": 2488,
+                        "id": 2508,
                         "name": "nonceTracker",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 466,
-                        "src": "23241:12:6",
+                        "src": "23464:12:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint32_$dyn_storage",
                           "typeString": "uint32[] storage ref"
                         }
                       },
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+                      "id": 2509,
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                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "memberName": "length",
                       "nodeType": "MemberAccess",
-                      "src": "23241:19:6",
+                      "src": "23464:19:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "23237:23:6",
+                    "src": "23460:23:6",
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                       "typeString": "bool"
                     }
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+                  "id": 2542,
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+                      2504
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 2484,
+                        "id": 2504,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "23230:1:6",
+                        "nameLocation": "23453:1:6",
                         "nodeType": "VariableDeclaration",
-                        "scope": 2522,
-                        "src": "23224:7:6",
+                        "scope": 2542,
+                        "src": "23447:7:6",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -54494,10 +54732,10 @@
                           "typeString": "uint8"
                         },
                         "typeName": {
-                          "id": 2483,
+                          "id": 2503,
                           "name": "uint8",
                           "nodeType": "ElementaryTypeName",
-                          "src": "23224:5:6",
+                          "src": "23447:5:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
@@ -54506,17 +54744,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2486,
+                    "id": 2506,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 2485,
+                      "id": 2505,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "23234:1:6",
+                      "src": "23457:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -54524,11 +54762,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "23224:11:6"
+                    "src": "23447:11:6"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 2492,
+                      "id": 2512,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -54536,14 +54774,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "23262:3:6",
+                      "src": "23485:3:6",
                       "subExpression": {
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+                        "id": 2511,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2484,
-                        "src": "23262:1:6",
+                        "referencedDeclaration": 2504,
+                        "src": "23485:1:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint8",
                           "typeString": "uint8"
@@ -54554,27 +54792,27 @@
                         "typeString": "uint8"
                       }
                     },
-                    "id": 2493,
+                    "id": 2513,
                     "nodeType": "ExpressionStatement",
-                    "src": "23262:3:6"
+                    "src": "23485:3:6"
                   },
                   "nodeType": "ForStatement",
-                  "src": "23219:341:6"
+                  "src": "23442:341:6"
                 },
                 {
                   "assignments": [
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+                    2547
                   ],
                   "declarations": [
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                       "constant": false,
-                      "id": 2527,
+                      "id": 2547,
                       "mutability": "mutable",
                       "name": "reducedArray",
-                      "nameLocation": "23792:12:6",
+                      "nameLocation": "24015:12:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2558,
-                      "src": "23776:28:6",
+                      "scope": 2578,
+                      "src": "23999:28:6",
                       "stateVariable": false,
                       "storageLocation": "memory",
                       "typeDescriptions": {
@@ -54583,18 +54821,18 @@
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2525,
+                          "id": 2545,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "23776:6:6",
+                          "src": "23999:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "id": 2526,
+                        "id": 2546,
                         "nodeType": "ArrayTypeName",
-                        "src": "23776:8:6",
+                        "src": "23999:8:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint32_$dyn_storage_ptr",
                           "typeString": "uint32[]"
@@ -54603,16 +54841,16 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2533,
+                  "id": 2553,
                   "initialValue": {
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+                        "id": 2551,
                         "name": "numValidIndices",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2480,
-                        "src": "23820:15:6",
+                        "referencedDeclaration": 2500,
+                        "src": "24043:15:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -54626,38 +54864,38 @@
                           "typeString": "uint32"
                         }
                       ],
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+                      "id": 2550,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "lValueRequested": false,
                       "nodeType": "NewExpression",
-                      "src": "23807:12:6",
+                      "src": "24030:12:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_objectcreation_pure$_t_uint256_$returns$_t_array$_t_uint32_$dyn_memory_ptr_$",
                         "typeString": "function (uint256) pure returns (uint32[] memory)"
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2528,
+                          "id": 2548,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "23811:6:6",
+                          "src": "24034:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "id": 2529,
+                        "id": 2549,
                         "nodeType": "ArrayTypeName",
-                        "src": "23811:8:6",
+                        "src": "24034:8:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint32_$dyn_storage_ptr",
                           "typeString": "uint32[]"
                         }
                       }
                     },
-                    "id": 2532,
+                    "id": 2552,
                     "isConstant": false,
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                     "isPure": false,
@@ -54665,7 +54903,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "23807:29:6",
+                    "src": "24030:29:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
@@ -54673,42 +54911,42 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "23776:60:6"
+                  "src": "23999:60:6"
                 },
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                   "body": {
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+                    "id": 2572,
                     "nodeType": "Block",
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+                    "src": "24113:59:6",
                     "statements": [
                       {
                         "expression": {
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+                          "id": 2570,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
                             "baseExpression": {
-                              "id": 2544,
+                              "id": 2564,
                               "name": "reducedArray",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2527,
-                              "src": "23904:12:6",
+                              "referencedDeclaration": 2547,
+                              "src": "24127:12:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
                                 "typeString": "uint32[] memory"
                               }
                             },
-                            "id": 2546,
+                            "id": 2566,
                             "indexExpression": {
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+                              "id": 2565,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2535,
-                              "src": "23917:1:6",
+                              "referencedDeclaration": 2555,
+                              "src": "24140:1:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint8",
                                 "typeString": "uint8"
@@ -54719,7 +54957,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "23904:15:6",
+                            "src": "24127:15:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -54729,25 +54967,25 @@
                           "operator": "=",
                           "rightHandSide": {
                             "baseExpression": {
-                              "id": 2547,
+                              "id": 2567,
                               "name": "nonZeroNonces",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2471,
-                              "src": "23922:13:6",
+                              "referencedDeclaration": 2491,
+                              "src": "24145:13:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
                                 "typeString": "uint32[] memory"
                               }
                             },
-                            "id": 2549,
+                            "id": 2569,
                             "indexExpression": {
-                              "id": 2548,
+                              "id": 2568,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2535,
-                              "src": "23936:1:6",
+                              "referencedDeclaration": 2555,
+                              "src": "24159:1:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint8",
                                 "typeString": "uint8"
@@ -54758,21 +54996,21 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "23922:16:6",
+                            "src": "24145:16:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
                             }
                           },
-                          "src": "23904:34:6",
+                          "src": "24127:34:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "id": 2551,
+                        "id": 2571,
                         "nodeType": "ExpressionStatement",
-                        "src": "23904:34:6"
+                        "src": "24127:34:6"
                       }
                     ]
                   },
@@ -54781,18 +55019,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
-                    "id": 2540,
+                    "id": 2560,
                     "isConstant": false,
                     "isLValue": false,
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                     "lValueRequested": false,
                     "leftExpression": {
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+                      "id": 2558,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2535,
-                      "src": "23864:1:6",
+                      "referencedDeclaration": 2555,
+                      "src": "24087:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint8",
                         "typeString": "uint8"
@@ -54801,38 +55039,38 @@
                     "nodeType": "BinaryOperation",
                     "operator": "<",
                     "rightExpression": {
-                      "id": 2539,
+                      "id": 2559,
                       "name": "numValidIndices",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2480,
-                      "src": "23868:15:6",
+                      "referencedDeclaration": 2500,
+                      "src": "24091:15:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "23864:19:6",
+                    "src": "24087:19:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2553,
+                  "id": 2573,
                   "initializationExpression": {
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+                      2555
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 2535,
+                        "id": 2555,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "23857:1:6",
+                        "nameLocation": "24080:1:6",
                         "nodeType": "VariableDeclaration",
-                        "scope": 2553,
-                        "src": "23851:7:6",
+                        "scope": 2573,
+                        "src": "24074:7:6",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -54840,10 +55078,10 @@
                           "typeString": "uint8"
                         },
                         "typeName": {
-                          "id": 2534,
+                          "id": 2554,
                           "name": "uint8",
                           "nodeType": "ElementaryTypeName",
-                          "src": "23851:5:6",
+                          "src": "24074:5:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
@@ -54852,17 +55090,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2537,
+                    "id": 2557,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 2536,
+                      "id": 2556,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "23861:1:6",
+                      "src": "24084:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -54870,11 +55108,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "23851:11:6"
+                    "src": "24074:11:6"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 2542,
+                      "id": 2562,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -54882,14 +55120,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "23885:3:6",
+                      "src": "24108:3:6",
                       "subExpression": {
-                        "id": 2541,
+                        "id": 2561,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2535,
-                        "src": "23885:1:6",
+                        "referencedDeclaration": 2555,
+                        "src": "24108:1:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint8",
                           "typeString": "uint8"
@@ -54900,27 +55138,27 @@
                         "typeString": "uint8"
                       }
                     },
-                    "id": 2543,
+                    "id": 2563,
                     "nodeType": "ExpressionStatement",
-                    "src": "23885:3:6"
+                    "src": "24108:3:6"
                   },
                   "nodeType": "ForStatement",
-                  "src": "23846:103:6"
+                  "src": "24069:103:6"
                 },
                 {
                   "expression": {
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+                    "id": 2576,
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                     "isPure": false,
                     "lValueRequested": false,
                     "leftHandSide": {
-                      "id": 2554,
+                      "id": 2574,
                       "name": "nonceTracker",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 466,
-                      "src": "23958:12:6",
+                      "src": "24181:12:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_array$_t_uint32_$dyn_storage",
                         "typeString": "uint32[] storage ref"
@@ -54929,80 +55167,80 @@
                     "nodeType": "Assignment",
                     "operator": "=",
                     "rightHandSide": {
-                      "id": 2555,
+                      "id": 2575,
                       "name": "reducedArray",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2527,
-                      "src": "23973:12:6",
+                      "referencedDeclaration": 2547,
+                      "src": "24196:12:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
                         "typeString": "uint32[] memory"
                       }
                     },
-                    "src": "23958:27:6",
+                    "src": "24181:27:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint32_$dyn_storage",
                       "typeString": "uint32[] storage ref"
                     }
                   },
-                  "id": 2557,
+                  "id": 2577,
                   "nodeType": "ExpressionStatement",
-                  "src": "23958:27:6"
+                  "src": "24181:27:6"
                 }
               ]
             },
             "documentation": {
-              "id": 2433,
+              "id": 2453,
               "nodeType": "StructuredDocumentation",
-              "src": "22564:249:6",
+              "src": "22787:249:6",
               "text": "This function removes all tracked nonce values correspond to interval blocks that are older than block.timestamp - REVEAL_MAX_DELAY. In doing so, extraneous data in the blockchain is removed, and both nonces and nonceTracker are bounded in size."
             },
-            "id": 2559,
+            "id": 2579,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_cleanupNonces",
-            "nameLocation": "22827:14:6",
+            "nameLocation": "23050:14:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
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+              "id": 2454,
               "nodeType": "ParameterList",
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-              "src": "22841:2:6"
+              "src": "23064:2:6"
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+              "id": 2455,
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-              "src": "22853:0:6"
+              "src": "23076:0:6"
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-            "src": "22818:1174:6",
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+            "src": "23041:1174:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
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+              "id": 2610,
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-                      "src": "24056:7:6",
+                      "scope": 2610,
+                      "src": "24279:7:6",
                       "stateVariable": false,
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@@ -55010,10 +55248,10 @@
                         "typeString": "uint8"
                       },
                       "typeName": {
-                        "id": 2564,
+                        "id": 2584,
                         "name": "uint8",
                         "nodeType": "ElementaryTypeName",
-                        "src": "24056:5:6",
+                        "src": "24279:5:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint8",
                           "typeString": "uint8"
@@ -55022,28 +55260,28 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2569,
+                  "id": 2589,
                   "initialValue": {
                     "baseExpression": {
-                      "id": 2566,
+                      "id": 2586,
                       "name": "nonces",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 463,
-                      "src": "24066:6:6",
+                      "src": "24289:6:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_mapping$_t_uint32_$_t_uint8_$",
                         "typeString": "mapping(uint32 => uint8)"
                       }
                     },
-                    "id": 2568,
+                    "id": 2588,
                     "indexExpression": {
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                       "name": "index",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2561,
-                      "src": "24073:5:6",
+                      "referencedDeclaration": 2581,
+                      "src": "24296:5:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -55054,14 +55292,14 @@
                     "isPure": false,
                     "lValueRequested": false,
                     "nodeType": "IndexAccess",
-                    "src": "24066:13:6",
+                    "src": "24289:13:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint8",
                       "typeString": "uint8"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "24056:23:6"
+                  "src": "24279:23:6"
                 },
                 {
                   "condition": {
@@ -55069,18 +55307,18 @@
                       "typeIdentifier": "t_uint8",
                       "typeString": "uint8"
                     },
-                    "id": 2572,
+                    "id": 2592,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
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+                      "id": 2590,
                       "name": "v",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2565,
-                      "src": "24093:1:6",
+                      "referencedDeclaration": 2585,
+                      "src": "24316:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint8",
                         "typeString": "uint8"
@@ -55090,44 +55328,44 @@
                     "operator": "==",
                     "rightExpression": {
                       "hexValue": "30",
-                      "id": 2571,
+                      "id": 2591,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "24098:1:6",
+                      "src": "24321:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
                       },
                       "value": "0"
                     },
-                    "src": "24093:6:6",
+                    "src": "24316:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2580,
+                  "id": 2600,
                   "nodeType": "IfStatement",
-                  "src": "24089:61:6",
+                  "src": "24312:61:6",
                   "trueBody": {
-                    "id": 2579,
+                    "id": 2599,
                     "nodeType": "Block",
-                    "src": "24101:49:6",
+                    "src": "24324:49:6",
                     "statements": [
                       {
                         "expression": {
                           "arguments": [
                             {
-                              "id": 2576,
+                              "id": 2596,
                               "name": "index",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2561,
-                              "src": "24133:5:6",
+                              "referencedDeclaration": 2581,
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@@ -55142,31 +55380,31 @@
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@@ -55174,53 +55412,53 @@
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@@ -55265,60 +55503,60 @@
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@@ -55326,10 +55564,10 @@
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@@ -55338,27 +55576,27 @@
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@@ -55382,13 +55620,13 @@
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                           "typeDescriptions": {
-                            "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                            "typeIdentifier": "t_contract$_ONEWallet_$2612",
                             "typeString": "contract ONEWallet"
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@@ -58096,7 +58334,7 @@
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@@ -59515,7 +59753,7 @@
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@@ -64252,7 +64490,7 @@
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@@ -64273,7 +64511,7 @@
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@@ -65035,7 +65273,7 @@
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@@ -65184,7 +65422,7 @@
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                             "typeDescriptions": {
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@@ -65714,7 +65952,7 @@
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+                              "typeIdentifier": "t_contract$_ONEWallet_$2612",
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@@ -65819,7 +66057,7 @@
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@@ -65827,7 +66065,7 @@
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+            "scope": 2612,
             "src": "10656:217:6",
             "stateMutability": "nonpayable",
             "virtual": false,
@@ -67128,7 +67366,7 @@
                 {
                   "condition": {
                     "commonType": {
-                      "typeIdentifier": "t_enum$_TokenType_$2607",
+                      "typeIdentifier": "t_enum$_TokenType_$2627",
                       "typeString": "enum TokenTracker.TokenType"
                     },
                     "id": 1384,
@@ -67144,7 +67382,7 @@
                       "referencedDeclaration": 1368,
                       "src": "11038:9:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_TokenType_$2607",
+                        "typeIdentifier": "t_enum$_TokenType_$2627",
                         "typeString": "enum TokenTracker.TokenType"
                       }
                     },
@@ -67156,10 +67394,10 @@
                         "name": "TokenType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2607,
+                        "referencedDeclaration": 2627,
                         "src": "11051:9:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
+                          "typeIdentifier": "t_type$_t_enum$_TokenType_$2627_$",
                           "typeString": "type(enum TokenTracker.TokenType)"
                         }
                       },
@@ -67170,10 +67408,10 @@
                       "lValueRequested": false,
                       "memberName": "ERC20",
                       "nodeType": "MemberAccess",
-                      "referencedDeclaration": 2603,
+                      "referencedDeclaration": 2623,
                       "src": "11051:15:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_enum$_TokenType_$2607",
+                        "typeIdentifier": "t_enum$_TokenType_$2627",
                         "typeString": "enum TokenTracker.TokenType"
                       }
                     },
@@ -67186,7 +67424,7 @@
                   "falseBody": {
                     "condition": {
                       "commonType": {
-                        "typeIdentifier": "t_enum$_TokenType_$2607",
+                        "typeIdentifier": "t_enum$_TokenType_$2627",
                         "typeString": "enum TokenTracker.TokenType"
                       },
                       "id": 1453,
@@ -67202,7 +67440,7 @@
                         "referencedDeclaration": 1368,
                         "src": "11797:9:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                          "typeIdentifier": "t_enum$_TokenType_$2627",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
@@ -67214,10 +67452,10 @@
                           "name": "TokenType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2607,
+                          "referencedDeclaration": 2627,
                           "src": "11810:9:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
+                            "typeIdentifier": "t_type$_t_enum$_TokenType_$2627_$",
                             "typeString": "type(enum TokenTracker.TokenType)"
                           }
                         },
@@ -67228,10 +67466,10 @@
                         "lValueRequested": false,
                         "memberName": "ERC721",
                         "nodeType": "MemberAccess",
-                        "referencedDeclaration": 2604,
+                        "referencedDeclaration": 2624,
                         "src": "11810:16:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                          "typeIdentifier": "t_enum$_TokenType_$2627",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
@@ -67244,7 +67482,7 @@
                     "falseBody": {
                       "condition": {
                         "commonType": {
-                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                          "typeIdentifier": "t_enum$_TokenType_$2627",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         "id": 1506,
@@ -67260,7 +67498,7 @@
                           "referencedDeclaration": 1368,
                           "src": "12321:9:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                            "typeIdentifier": "t_enum$_TokenType_$2627",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
@@ -67272,10 +67510,10 @@
                             "name": "TokenType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2607,
+                            "referencedDeclaration": 2627,
                             "src": "12334:9:6",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2607_$",
+                              "typeIdentifier": "t_type$_t_enum$_TokenType_$2627_$",
                               "typeString": "type(enum TokenTracker.TokenType)"
                             }
                           },
@@ -67286,10 +67524,10 @@
                           "lValueRequested": false,
                           "memberName": "ERC1155",
                           "nodeType": "MemberAccess",
-                          "referencedDeclaration": 2605,
+                          "referencedDeclaration": 2625,
                           "src": "12334:17:6",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                            "typeIdentifier": "t_enum$_TokenType_$2627",
                             "typeString": "enum TokenTracker.TokenType"
                           }
                         },
@@ -67326,7 +67564,7 @@
                                             "referencedDeclaration": 1368,
                                             "src": "12504:9:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_enum$_TokenType_$2607",
+                                              "typeIdentifier": "t_enum$_TokenType_$2627",
                                               "typeString": "enum TokenTracker.TokenType"
                                             }
                                           },
@@ -67382,7 +67620,7 @@
                                         "expression": {
                                           "argumentTypes": [
                                             {
-                                              "typeIdentifier": "t_enum$_TokenType_$2607",
+                                              "typeIdentifier": "t_enum$_TokenType_$2627",
                                               "typeString": "enum TokenTracker.TokenType"
                                             },
                                             {
@@ -67406,10 +67644,10 @@
                                           "name": "TokenTransferSucceeded",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2692,
+                                          "referencedDeclaration": 2712,
                                           "src": "12481:22:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                             "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                           }
                                         },
@@ -67456,7 +67694,7 @@
                                             "referencedDeclaration": 1368,
                                             "src": "12645:9:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_enum$_TokenType_$2607",
+                                              "typeIdentifier": "t_enum$_TokenType_$2627",
                                               "typeString": "enum TokenTracker.TokenType"
                                             }
                                           },
@@ -67524,7 +67762,7 @@
                                         "expression": {
                                           "argumentTypes": [
                                             {
-                                              "typeIdentifier": "t_enum$_TokenType_$2607",
+                                              "typeIdentifier": "t_enum$_TokenType_$2627",
                                               "typeString": "enum TokenTracker.TokenType"
                                             },
                                             {
@@ -67552,10 +67790,10 @@
                                           "name": "TokenTransferError",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2679,
+                                          "referencedDeclaration": 2699,
                                           "src": "12626:18:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                             "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                           }
                                         },
@@ -67636,7 +67874,7 @@
                                             "referencedDeclaration": 1368,
                                             "src": "12767:9:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_enum$_TokenType_$2607",
+                                              "typeIdentifier": "t_enum$_TokenType_$2627",
                                               "typeString": "enum TokenTracker.TokenType"
                                             }
                                           },
@@ -67708,7 +67946,7 @@
                                         "expression": {
                                           "argumentTypes": [
                                             {
-                                              "typeIdentifier": "t_enum$_TokenType_$2607",
+                                              "typeIdentifier": "t_enum$_TokenType_$2627",
                                               "typeString": "enum TokenTracker.TokenType"
                                             },
                                             {
@@ -67736,10 +67974,10 @@
                                           "name": "TokenTransferError",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
-                                          "referencedDeclaration": 2679,
+                                          "referencedDeclaration": 2699,
                                           "src": "12748:18:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                            "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                             "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                           }
                                         },
@@ -67782,7 +68020,7 @@
                                       "referencedDeclaration": 4294967268,
                                       "src": "12422:4:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                                        "typeIdentifier": "t_contract$_ONEWallet_$2612",
                                         "typeString": "contract ONEWallet"
                                       }
                                     }
@@ -67790,7 +68028,7 @@
                                   "expression": {
                                     "argumentTypes": [
                                       {
-                                        "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                                        "typeIdentifier": "t_contract$_ONEWallet_$2612",
                                         "typeString": "contract ONEWallet"
                                       }
                                     ],
@@ -68011,7 +68249,7 @@
                                           "referencedDeclaration": 1368,
                                           "src": "11969:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         },
@@ -68067,7 +68305,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           },
                                           {
@@ -68091,10 +68329,10 @@
                                         "name": "TokenTransferSucceeded",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2692,
+                                        "referencedDeclaration": 2712,
                                         "src": "11946:22:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                           "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                         }
                                       },
@@ -68141,7 +68379,7 @@
                                           "referencedDeclaration": 1368,
                                           "src": "12110:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         },
@@ -68209,7 +68447,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           },
                                           {
@@ -68237,10 +68475,10 @@
                                         "name": "TokenTransferError",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2679,
+                                        "referencedDeclaration": 2699,
                                         "src": "12091:18:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                           "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                         }
                                       },
@@ -68321,7 +68559,7 @@
                                           "referencedDeclaration": 1368,
                                           "src": "12232:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         },
@@ -68393,7 +68631,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           },
                                           {
@@ -68421,10 +68659,10 @@
                                         "name": "TokenTransferError",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 2679,
+                                        "referencedDeclaration": 2699,
                                         "src": "12213:18:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                          "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                           "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                         }
                                       },
@@ -68467,7 +68705,7 @@
                                     "referencedDeclaration": 4294967268,
                                     "src": "11896:4:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2612",
                                       "typeString": "contract ONEWallet"
                                     }
                                   }
@@ -68475,7 +68713,7 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_contract$_ONEWallet_$2592",
+                                      "typeIdentifier": "t_contract$_ONEWallet_$2612",
                                       "typeString": "contract ONEWallet"
                                     }
                                   ],
@@ -68701,7 +68939,7 @@
                                               "referencedDeclaration": 1368,
                                               "src": "11220:9:6",
                                               "typeDescriptions": {
-                                                "typeIdentifier": "t_enum$_TokenType_$2607",
+                                                "typeIdentifier": "t_enum$_TokenType_$2627",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               }
                                             },
@@ -68733,7 +68971,7 @@
                                           "expression": {
                                             "argumentTypes": [
                                               {
-                                                "typeIdentifier": "t_enum$_TokenType_$2607",
+                                                "typeIdentifier": "t_enum$_TokenType_$2627",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               },
                                               {
@@ -68749,10 +68987,10 @@
                                             "name": "_trackToken",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 3089,
+                                            "referencedDeclaration": 3109,
                                             "src": "11208:11:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
+                                              "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$returns$__$",
                                               "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                                             }
                                           },
@@ -68786,7 +69024,7 @@
                                               "referencedDeclaration": 1368,
                                               "src": "11306:9:6",
                                               "typeDescriptions": {
-                                                "typeIdentifier": "t_enum$_TokenType_$2607",
+                                                "typeIdentifier": "t_enum$_TokenType_$2627",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               }
                                             },
@@ -68842,7 +69080,7 @@
                                           "expression": {
                                             "argumentTypes": [
                                               {
-                                                "typeIdentifier": "t_enum$_TokenType_$2607",
+                                                "typeIdentifier": "t_enum$_TokenType_$2627",
                                                 "typeString": "enum TokenTracker.TokenType"
                                               },
                                               {
@@ -68866,10 +69104,10 @@
                                             "name": "TokenTransferSucceeded",
                                             "nodeType": "Identifier",
                                             "overloadedDeclarations": [],
-                                            "referencedDeclaration": 2692,
+                                            "referencedDeclaration": 2712,
                                             "src": "11283:22:6",
                                             "typeDescriptions": {
-                                              "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                              "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                               "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                             }
                                           },
@@ -68912,7 +69150,7 @@
                                         "referencedDeclaration": 1368,
                                         "src": "11445:9:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                                          "typeIdentifier": "t_enum$_TokenType_$2627",
                                           "typeString": "enum TokenTracker.TokenType"
                                         }
                                       },
@@ -68968,7 +69206,7 @@
                                     "expression": {
                                       "argumentTypes": [
                                         {
-                                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                                          "typeIdentifier": "t_enum$_TokenType_$2627",
                                           "typeString": "enum TokenTracker.TokenType"
                                         },
                                         {
@@ -68992,10 +69230,10 @@
                                       "name": "TokenTransferFailed",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2664,
+                                      "referencedDeclaration": 2684,
                                       "src": "11425:19:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
+                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$returns$__$",
                                         "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256)"
                                       }
                                     },
@@ -69076,7 +69314,7 @@
                                         "referencedDeclaration": 1368,
                                         "src": "11586:9:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                                          "typeIdentifier": "t_enum$_TokenType_$2627",
                                           "typeString": "enum TokenTracker.TokenType"
                                         }
                                       },
@@ -69144,7 +69382,7 @@
                                     "expression": {
                                       "argumentTypes": [
                                         {
-                                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                                          "typeIdentifier": "t_enum$_TokenType_$2627",
                                           "typeString": "enum TokenTracker.TokenType"
                                         },
                                         {
@@ -69172,10 +69410,10 @@
                                       "name": "TokenTransferError",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2679,
+                                      "referencedDeclaration": 2699,
                                       "src": "11567:18:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                         "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                       }
                                     },
@@ -69256,7 +69494,7 @@
                                         "referencedDeclaration": 1368,
                                         "src": "11708:9:6",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                                          "typeIdentifier": "t_enum$_TokenType_$2627",
                                           "typeString": "enum TokenTracker.TokenType"
                                         }
                                       },
@@ -69328,7 +69566,7 @@
                                     "expression": {
                                       "argumentTypes": [
                                         {
-                                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                                          "typeIdentifier": "t_enum$_TokenType_$2627",
                                           "typeString": "enum TokenTracker.TokenType"
                                         },
                                         {
@@ -69356,10 +69594,10 @@
                                       "name": "TokenTransferError",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 2679,
+                                      "referencedDeclaration": 2699,
                                       "src": "11689:18:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
+                                        "typeIdentifier": "t_function_event_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_string_memory_ptr_$returns$__$",
                                         "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,string memory)"
                                       }
                                     },
@@ -69537,7 +69775,7 @@
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2607",
+                    "typeIdentifier": "t_enum$_TokenType_$2627",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
@@ -69547,13 +69785,13 @@
                       "id": 1366,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2607,
+                      "referencedDeclaration": 2627,
                       "src": "10903:9:6"
                     },
-                    "referencedDeclaration": 2607,
+                    "referencedDeclaration": 2627,
                     "src": "10903:9:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2607",
+                      "typeIdentifier": "t_enum$_TokenType_$2627",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -69705,7 +69943,7 @@
               "parameters": [],
               "src": "11024:0:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "10879:1973:6",
             "stateMutability": "nonpayable",
             "virtual": false,
@@ -70404,7 +70642,7 @@
                                           "referencedDeclaration": 1574,
                                           "src": "13913:9:6",
                                           "typeDescriptions": {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         }
@@ -70412,7 +70650,7 @@
                                       "expression": {
                                         "argumentTypes": [
                                           {
-                                            "typeIdentifier": "t_enum$_TokenType_$2607",
+                                            "typeIdentifier": "t_enum$_TokenType_$2627",
                                             "typeString": "enum TokenTracker.TokenType"
                                           }
                                         ],
@@ -71940,7 +72178,7 @@
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2607",
+                    "typeIdentifier": "t_enum$_TokenType_$2627",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
@@ -71950,13 +72188,13 @@
                       "id": 1572,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2607,
+                      "referencedDeclaration": 2627,
                       "src": "13057:9:6"
                     },
-                    "referencedDeclaration": 2607,
+                    "referencedDeclaration": 2627,
                     "src": "13057:9:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2607",
+                      "typeIdentifier": "t_enum$_TokenType_$2627",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -72163,7 +72401,7 @@
               ],
               "src": "13193:18:6"
             },
-            "scope": 2592,
+            "scope": 2612,
             "src": "12941:1287:6",
             "stateMutability": "pure",
             "virtual": false,
@@ -72171,9 +72409,9 @@
           },
           {
             "body": {
-              "id": 1923,
+              "id": 1925,
               "nodeType": "Block",
-              "src": "14490:1631:6",
+              "src": "14490:1661:6",
               "statements": [
                 {
                   "expression": {
@@ -72234,7 +72472,7 @@
                       "name": "_isCorrectProof",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2028,
+                      "referencedDeclaration": 2030,
                       "src": "14500:15:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_internal_view$_t_array$_t_bytes32_$dyn_calldata_ptr_$_t_uint32_$_t_bytes32_$returns$__$",
@@ -72482,7 +72720,7 @@
                       "name": "commitHash",
                       "nameLocation": "14725:10:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1923,
+                      "scope": 1925,
                       "src": "14717:18:6",
                       "stateVariable": false,
                       "storageLocation": "default",
@@ -72509,7 +72747,7 @@
                       "name": "paramsHash",
                       "nameLocation": "14745:10:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1923,
+                      "scope": 1925,
                       "src": "14737:18:6",
                       "stateVariable": false,
                       "storageLocation": "default",
@@ -72618,7 +72856,7 @@
                         "referencedDeclaration": 1755,
                         "src": "14837:9:6",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                          "typeIdentifier": "t_enum$_TokenType_$2627",
                           "typeString": "enum TokenTracker.TokenType"
                         }
                       },
@@ -72702,7 +72940,7 @@
                           "typeString": "enum ONEWallet.OperationType"
                         },
                         {
-                          "typeIdentifier": "t_enum$_TokenType_$2607",
+                          "typeIdentifier": "t_enum$_TokenType_$2627",
                           "typeString": "enum TokenTracker.TokenType"
                         },
                         {
@@ -72733,7 +72971,7 @@
                       "referencedDeclaration": 1742,
                       "src": "14759:14:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_pure$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_enum$_OperationType_$493_$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_calldata_ptr_$returns$_t_bytes32_$_t_bytes32_$",
+                        "typeIdentifier": "t_function_internal_pure$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_enum$_OperationType_$493_$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_calldata_ptr_$returns$_t_bytes32_$_t_bytes32_$",
                         "typeString": "function (bytes32,uint32,bytes32,enum ONEWallet.OperationType,enum TokenTracker.TokenType,address,uint256,address,uint256,bytes calldata) pure returns (bytes32,bytes32)"
                       }
                     },
@@ -72767,7 +73005,7 @@
                       "name": "commitIndex",
                       "nameLocation": "14910:11:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 1923,
+                      "scope": 1925,
                       "src": "14903:18:6",
                       "stateVariable": false,
                       "storageLocation": "default",
@@ -72788,7 +73026,7 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 1816,
+                  "id": 1817,
                   "initialValue": {
                     "arguments": [
                       {
@@ -72838,6 +73076,18 @@
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
+                      },
+                      {
+                        "id": 1815,
+                        "name": "operationType",
+                        "nodeType": "Identifier",
+                        "overloadedDeclarations": [],
+                        "referencedDeclaration": 1752,
+                        "src": "14984:13:6",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_enum$_OperationType_$493",
+                          "typeString": "enum ONEWallet.OperationType"
+                        }
                       }
                     ],
                     "expression": {
@@ -72857,20 +73107,24 @@
                         {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
+                        },
+                        {
+                          "typeIdentifier": "t_enum$_OperationType_$493",
+                          "typeString": "enum ONEWallet.OperationType"
                         }
                       ],
                       "id": 1810,
                       "name": "_verifyReveal",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2359,
+                      "referencedDeclaration": 2370,
                       "src": "14924:13:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_view$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_bytes32_$returns$_t_uint32_$",
-                        "typeString": "function (bytes32,uint32,bytes32,bytes32) view returns (uint32)"
+                        "typeIdentifier": "t_function_internal_view$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_bytes32_$_t_enum$_OperationType_$493_$returns$_t_uint32_$",
+                        "typeString": "function (bytes32,uint32,bytes32,bytes32,enum ONEWallet.OperationType) view returns (uint32)"
                       }
                     },
-                    "id": 1815,
+                    "id": 1816,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -72878,7 +73132,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "14924:59:6",
+                    "src": "14924:74:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
@@ -72886,34 +73140,46 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "14903:80:6"
+                  "src": "14903:95:6"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
-                        "id": 1818,
+                        "id": 1819,
                         "name": "commitHash",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 1790,
-                        "src": "15009:10:6",
+                        "src": "15024:10:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
                         }
                       },
                       {
-                        "id": 1819,
+                        "id": 1820,
                         "name": "commitIndex",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 1809,
-                        "src": "15021:11:6",
+                        "src": "15036:11:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
                         }
+                      },
+                      {
+                        "id": 1821,
+                        "name": "operationType",
+                        "nodeType": "Identifier",
+                        "overloadedDeclarations": [],
+                        "referencedDeclaration": 1752,
+                        "src": "15049:13:6",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_enum$_OperationType_$493",
+                          "typeString": "enum ONEWallet.OperationType"
+                        }
                       }
                     ],
                     "expression": {
@@ -72925,20 +73191,24 @@
                         {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
+                        },
+                        {
+                          "typeIdentifier": "t_enum$_OperationType_$493",
+                          "typeString": "enum ONEWallet.OperationType"
                         }
                       ],
-                      "id": 1817,
+                      "id": 1818,
                       "name": "_completeReveal",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2432,
-                      "src": "14993:15:6",
+                      "referencedDeclaration": 2452,
+                      "src": "15008:15:6",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_internal_nonpayable$_t_bytes32_$_t_uint32_$returns$__$",
-                        "typeString": "function (bytes32,uint32)"
+                        "typeIdentifier": "t_function_internal_nonpayable$_t_bytes32_$_t_uint32_$_t_enum$_OperationType_$493_$returns$__$",
+                        "typeString": "function (bytes32,uint32,enum ONEWallet.OperationType)"
                       }
                     },
-                    "id": 1820,
+                    "id": 1822,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -72946,16 +73216,16 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "14993:40:6",
+                    "src": "15008:55:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 1821,
+                  "id": 1823,
                   "nodeType": "ExpressionStatement",
-                  "src": "14993:40:6"
+                  "src": "15008:55:6"
                 },
                 {
                   "condition": {
@@ -72963,18 +73233,18 @@
                       "typeIdentifier": "t_enum$_OperationType_$493",
                       "typeString": "enum ONEWallet.OperationType"
                     },
-                    "id": 1825,
+                    "id": 1827,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 1822,
+                      "id": 1824,
                       "name": "operationType",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 1752,
-                      "src": "15098:13:6",
+                      "src": "15128:13:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
@@ -72984,18 +73254,18 @@
                     "operator": "==",
                     "rightExpression": {
                       "expression": {
-                        "id": 1823,
+                        "id": 1825,
                         "name": "OperationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 493,
-                        "src": "15115:13:6",
+                        "src": "15145:13:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                           "typeString": "type(enum ONEWallet.OperationType)"
                         }
                       },
-                      "id": 1824,
+                      "id": 1826,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
@@ -73003,13 +73273,13 @@
                       "memberName": "TRACK",
                       "nodeType": "MemberAccess",
                       "referencedDeclaration": 485,
-                      "src": "15115:19:6",
+                      "src": "15145:19:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       }
                     },
-                    "src": "15098:36:6",
+                    "src": "15128:36:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -73021,18 +73291,18 @@
                         "typeIdentifier": "t_enum$_OperationType_$493",
                         "typeString": "enum ONEWallet.OperationType"
                       },
-                      "id": 1847,
+                      "id": 1849,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "leftExpression": {
-                        "id": 1844,
+                        "id": 1846,
                         "name": "operationType",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 1752,
-                        "src": "15328:13:6",
+                        "src": "15358:13:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
@@ -73042,18 +73312,18 @@
                       "operator": "==",
                       "rightExpression": {
                         "expression": {
-                          "id": 1845,
+                          "id": 1847,
                           "name": "OperationType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 493,
-                          "src": "15345:13:6",
+                          "src": "15375:13:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                             "typeString": "type(enum ONEWallet.OperationType)"
                           }
                         },
-                        "id": 1846,
+                        "id": 1848,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
@@ -73061,13 +73331,13 @@
                         "memberName": "UNTRACK",
                         "nodeType": "MemberAccess",
                         "referencedDeclaration": 486,
-                        "src": "15345:21:6",
+                        "src": "15375:21:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         }
                       },
-                      "src": "15328:38:6",
+                      "src": "15358:38:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
@@ -73079,18 +73349,18 @@
                           "typeIdentifier": "t_enum$_OperationType_$493",
                           "typeString": "enum ONEWallet.OperationType"
                         },
-                        "id": 1869,
+                        "id": 1871,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
-                          "id": 1866,
+                          "id": 1868,
                           "name": "operationType",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 1752,
-                          "src": "15564:13:6",
+                          "src": "15594:13:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
@@ -73100,18 +73370,18 @@
                         "operator": "==",
                         "rightExpression": {
                           "expression": {
-                            "id": 1867,
+                            "id": 1869,
                             "name": "OperationType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 493,
-                            "src": "15581:13:6",
+                            "src": "15611:13:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                               "typeString": "type(enum ONEWallet.OperationType)"
                             }
                           },
-                          "id": 1868,
+                          "id": 1870,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
@@ -73119,13 +73389,13 @@
                           "memberName": "TRANSFER_TOKEN",
                           "nodeType": "MemberAccess",
                           "referencedDeclaration": 487,
-                          "src": "15581:28:6",
+                          "src": "15611:28:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           }
                         },
-                        "src": "15564:45:6",
+                        "src": "15594:45:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -73137,18 +73407,18 @@
                             "typeIdentifier": "t_enum$_OperationType_$493",
                             "typeString": "enum ONEWallet.OperationType"
                           },
-                          "id": 1883,
+                          "id": 1885,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 1880,
+                            "id": 1882,
                             "name": "operationType",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 1752,
-                            "src": "15717:13:6",
+                            "src": "15747:13:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_enum$_OperationType_$493",
                               "typeString": "enum ONEWallet.OperationType"
@@ -73158,18 +73428,18 @@
                           "operator": "==",
                           "rightExpression": {
                             "expression": {
-                              "id": 1881,
+                              "id": 1883,
                               "name": "OperationType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 493,
-                              "src": "15734:13:6",
+                              "src": "15764:13:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                 "typeString": "type(enum ONEWallet.OperationType)"
                               }
                             },
-                            "id": 1882,
+                            "id": 1884,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
@@ -73177,13 +73447,13 @@
                             "memberName": "OVERRIDE_TRACK",
                             "nodeType": "MemberAccess",
                             "referencedDeclaration": 488,
-                            "src": "15734:28:6",
+                            "src": "15764:28:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_enum$_OperationType_$493",
                               "typeString": "enum ONEWallet.OperationType"
                             }
                           },
-                          "src": "15717:45:6",
+                          "src": "15747:45:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
@@ -73195,18 +73465,18 @@
                               "typeIdentifier": "t_enum$_OperationType_$493",
                               "typeString": "enum ONEWallet.OperationType"
                             },
-                            "id": 1892,
+                            "id": 1894,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "leftExpression": {
-                              "id": 1889,
+                              "id": 1891,
                               "name": "operationType",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 1752,
-                              "src": "15828:13:6",
+                              "src": "15858:13:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_enum$_OperationType_$493",
                                 "typeString": "enum ONEWallet.OperationType"
@@ -73216,18 +73486,18 @@
                             "operator": "==",
                             "rightExpression": {
                               "expression": {
-                                "id": 1890,
+                                "id": 1892,
                                 "name": "OperationType",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
                                 "referencedDeclaration": 493,
-                                "src": "15845:13:6",
+                                "src": "15875:13:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                   "typeString": "type(enum ONEWallet.OperationType)"
                                 }
                               },
-                              "id": 1891,
+                              "id": 1893,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
@@ -73235,13 +73505,13 @@
                               "memberName": "TRANSFER",
                               "nodeType": "MemberAccess",
                               "referencedDeclaration": 489,
-                              "src": "15845:22:6",
+                              "src": "15875:22:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_enum$_OperationType_$493",
                                 "typeString": "enum ONEWallet.OperationType"
                               }
                             },
-                            "src": "15828:39:6",
+                            "src": "15858:39:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bool",
                               "typeString": "bool"
@@ -73253,18 +73523,18 @@
                                 "typeIdentifier": "t_enum$_OperationType_$493",
                                 "typeString": "enum ONEWallet.OperationType"
                               },
-                              "id": 1902,
+                              "id": 1904,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
                               "lValueRequested": false,
                               "leftExpression": {
-                                "id": 1899,
+                                "id": 1901,
                                 "name": "operationType",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
                                 "referencedDeclaration": 1752,
-                                "src": "15927:13:6",
+                                "src": "15957:13:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_enum$_OperationType_$493",
                                   "typeString": "enum ONEWallet.OperationType"
@@ -73274,18 +73544,18 @@
                               "operator": "==",
                               "rightExpression": {
                                 "expression": {
-                                  "id": 1900,
+                                  "id": 1902,
                                   "name": "OperationType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 493,
-                                  "src": "15944:13:6",
+                                  "src": "15974:13:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                     "typeString": "type(enum ONEWallet.OperationType)"
                                   }
                                 },
-                                "id": 1901,
+                                "id": 1903,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": true,
@@ -73293,13 +73563,13 @@
                                 "memberName": "RECOVER",
                                 "nodeType": "MemberAccess",
                                 "referencedDeclaration": 491,
-                                "src": "15944:21:6",
+                                "src": "15974:21:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_enum$_OperationType_$493",
                                   "typeString": "enum ONEWallet.OperationType"
                                 }
                               },
-                              "src": "15927:38:6",
+                              "src": "15957:38:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bool",
                                 "typeString": "bool"
@@ -73311,18 +73581,18 @@
                                   "typeIdentifier": "t_enum$_OperationType_$493",
                                   "typeString": "enum ONEWallet.OperationType"
                                 },
-                                "id": 1910,
+                                "id": 1912,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "leftExpression": {
-                                  "id": 1907,
+                                  "id": 1909,
                                   "name": "operationType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1752,
-                                  "src": "16012:13:6",
+                                  "src": "16042:13:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_enum$_OperationType_$493",
                                     "typeString": "enum ONEWallet.OperationType"
@@ -73332,18 +73602,18 @@
                                 "operator": "==",
                                 "rightExpression": {
                                   "expression": {
-                                    "id": 1908,
+                                    "id": 1910,
                                     "name": "OperationType",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 493,
-                                    "src": "16029:13:6",
+                                    "src": "16059:13:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_type$_t_enum$_OperationType_$493_$",
                                       "typeString": "type(enum ONEWallet.OperationType)"
                                     }
                                   },
-                                  "id": 1909,
+                                  "id": 1911,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
@@ -73351,36 +73621,36 @@
                                   "memberName": "SET_RECOVERY_ADDRESS",
                                   "nodeType": "MemberAccess",
                                   "referencedDeclaration": 490,
-                                  "src": "16029:34:6",
+                                  "src": "16059:34:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_enum$_OperationType_$493",
                                     "typeString": "enum ONEWallet.OperationType"
                                   }
                                 },
-                                "src": "16012:51:6",
+                                "src": "16042:51:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bool",
                                   "typeString": "bool"
                                 }
                               },
-                              "id": 1916,
+                              "id": 1918,
                               "nodeType": "IfStatement",
-                              "src": "16008:107:6",
+                              "src": "16038:107:6",
                               "trueBody": {
-                                "id": 1915,
+                                "id": 1917,
                                 "nodeType": "Block",
-                                "src": "16065:50:6",
+                                "src": "16095:50:6",
                                 "statements": [
                                   {
                                     "expression": {
                                       "arguments": [
                                         {
-                                          "id": 1912,
+                                          "id": 1914,
                                           "name": "dest",
                                           "nodeType": "Identifier",
                                           "overloadedDeclarations": [],
                                           "referencedDeclaration": 1761,
-                                          "src": "16099:4:6",
+                                          "src": "16129:4:6",
                                           "typeDescriptions": {
                                             "typeIdentifier": "t_address_payable",
                                             "typeString": "address payable"
@@ -73394,18 +73664,18 @@
                                             "typeString": "address payable"
                                           }
                                         ],
-                                        "id": 1911,
+                                        "id": 1913,
                                         "name": "_setRecoveryAddress",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
                                         "referencedDeclaration": 1365,
-                                        "src": "16079:19:6",
+                                        "src": "16109:19:6",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_function_internal_nonpayable$_t_address_payable_$returns$__$",
                                           "typeString": "function (address payable)"
                                         }
                                       },
-                                      "id": 1913,
+                                      "id": 1915,
                                       "isConstant": false,
                                       "isLValue": false,
                                       "isPure": false,
@@ -73413,45 +73683,45 @@
                                       "lValueRequested": false,
                                       "names": [],
                                       "nodeType": "FunctionCall",
-                                      "src": "16079:25:6",
+                                      "src": "16109:25:6",
                                       "tryCall": false,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_tuple$__$",
                                         "typeString": "tuple()"
                                       }
                                     },
-                                    "id": 1914,
+                                    "id": 1916,
                                     "nodeType": "ExpressionStatement",
-                                    "src": "16079:25:6"
+                                    "src": "16109:25:6"
                                   }
                                 ]
                               }
                             },
-                            "id": 1917,
+                            "id": 1919,
                             "nodeType": "IfStatement",
-                            "src": "15923:192:6",
+                            "src": "15953:192:6",
                             "trueBody": {
-                              "id": 1906,
+                              "id": 1908,
                               "nodeType": "Block",
-                              "src": "15967:35:6",
+                              "src": "15997:35:6",
                               "statements": [
                                 {
                                   "expression": {
                                     "arguments": [],
                                     "expression": {
                                       "argumentTypes": [],
-                                      "id": 1903,
+                                      "id": 1905,
                                       "name": "_recover",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1345,
-                                      "src": "15981:8:6",
+                                      "src": "16011:8:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_function_internal_nonpayable$__$returns$_t_bool_$",
                                         "typeString": "function () returns (bool)"
                                       }
                                     },
-                                    "id": 1904,
+                                    "id": 1906,
                                     "isConstant": false,
                                     "isLValue": false,
                                     "isPure": false,
@@ -73459,50 +73729,50 @@
                                     "lValueRequested": false,
                                     "names": [],
                                     "nodeType": "FunctionCall",
-                                    "src": "15981:10:6",
+                                    "src": "16011:10:6",
                                     "tryCall": false,
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bool",
                                       "typeString": "bool"
                                     }
                                   },
-                                  "id": 1905,
+                                  "id": 1907,
                                   "nodeType": "ExpressionStatement",
-                                  "src": "15981:10:6"
+                                  "src": "16011:10:6"
                                 }
                               ]
                             }
                           },
-                          "id": 1918,
+                          "id": 1920,
                           "nodeType": "IfStatement",
-                          "src": "15824:291:6",
+                          "src": "15854:291:6",
                           "trueBody": {
-                            "id": 1898,
+                            "id": 1900,
                             "nodeType": "Block",
-                            "src": "15869:48:6",
+                            "src": "15899:48:6",
                             "statements": [
                               {
                                 "expression": {
                                   "arguments": [
                                     {
-                                      "id": 1894,
+                                      "id": 1896,
                                       "name": "dest",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1761,
-                                      "src": "15893:4:6",
+                                      "src": "15923:4:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_address_payable",
                                         "typeString": "address payable"
                                       }
                                     },
                                     {
-                                      "id": 1895,
+                                      "id": 1897,
                                       "name": "amount",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1763,
-                                      "src": "15899:6:6",
+                                      "src": "15929:6:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -73520,18 +73790,18 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1893,
+                                    "id": 1895,
                                     "name": "_transfer",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 1314,
-                                    "src": "15883:9:6",
+                                    "src": "15913:9:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_nonpayable$_t_address_payable_$_t_uint256_$returns$_t_bool_$",
                                       "typeString": "function (address payable,uint256) returns (bool)"
                                     }
                                   },
-                                  "id": 1896,
+                                  "id": 1898,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -73539,38 +73809,38 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "15883:23:6",
+                                  "src": "15913:23:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bool",
                                     "typeString": "bool"
                                   }
                                 },
-                                "id": 1897,
+                                "id": 1899,
                                 "nodeType": "ExpressionStatement",
-                                "src": "15883:23:6"
+                                "src": "15913:23:6"
                               }
                             ]
                           }
                         },
-                        "id": 1919,
+                        "id": 1921,
                         "nodeType": "IfStatement",
-                        "src": "15713:402:6",
+                        "src": "15743:402:6",
                         "trueBody": {
-                          "id": 1888,
+                          "id": 1890,
                           "nodeType": "Block",
-                          "src": "15764:54:6",
+                          "src": "15794:54:6",
                           "statements": [
                             {
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 1885,
+                                    "id": 1887,
                                     "name": "data",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 1765,
-                                    "src": "15802:4:6",
+                                    "src": "15832:4:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -73584,18 +73854,18 @@
                                       "typeString": "bytes calldata"
                                     }
                                   ],
-                                  "id": 1884,
+                                  "id": 1886,
                                   "name": "_overrideTrackWithBytes",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 3597,
-                                  "src": "15778:23:6",
+                                  "referencedDeclaration": 3617,
+                                  "src": "15808:23:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_calldata_ptr_$returns$__$",
                                     "typeString": "function (bytes calldata)"
                                   }
                                 },
-                                "id": 1886,
+                                "id": 1888,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -73603,98 +73873,98 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "15778:29:6",
+                                "src": "15808:29:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_tuple$__$",
                                   "typeString": "tuple()"
                                 }
                               },
-                              "id": 1887,
+                              "id": 1889,
                               "nodeType": "ExpressionStatement",
-                              "src": "15778:29:6"
+                              "src": "15808:29:6"
                             }
                           ]
                         }
                       },
-                      "id": 1920,
+                      "id": 1922,
                       "nodeType": "IfStatement",
-                      "src": "15560:555:6",
+                      "src": "15590:555:6",
                       "trueBody": {
-                        "id": 1879,
+                        "id": 1881,
                         "nodeType": "Block",
-                        "src": "15611:96:6",
+                        "src": "15641:96:6",
                         "statements": [
                           {
                             "expression": {
                               "arguments": [
                                 {
-                                  "id": 1871,
+                                  "id": 1873,
                                   "name": "tokenType",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1755,
-                                  "src": "15640:9:6",
+                                  "src": "15670:9:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_TokenType_$2607",
+                                    "typeIdentifier": "t_enum$_TokenType_$2627",
                                     "typeString": "enum TokenTracker.TokenType"
                                   }
                                 },
                                 {
-                                  "id": 1872,
+                                  "id": 1874,
                                   "name": "contractAddress",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1757,
-                                  "src": "15651:15:6",
+                                  "src": "15681:15:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
                                   }
                                 },
                                 {
-                                  "id": 1873,
+                                  "id": 1875,
                                   "name": "tokenId",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1759,
-                                  "src": "15668:7:6",
+                                  "src": "15698:7:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
                                 {
-                                  "id": 1874,
+                                  "id": 1876,
                                   "name": "dest",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1761,
-                                  "src": "15677:4:6",
+                                  "src": "15707:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address_payable",
                                     "typeString": "address payable"
                                   }
                                 },
                                 {
-                                  "id": 1875,
+                                  "id": 1877,
                                   "name": "amount",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1763,
-                                  "src": "15683:6:6",
+                                  "src": "15713:6:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   }
                                 },
                                 {
-                                  "id": 1876,
+                                  "id": 1878,
                                   "name": "data",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 1765,
-                                  "src": "15691:4:6",
+                                  "src": "15721:4:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes_calldata_ptr",
                                     "typeString": "bytes calldata"
@@ -73704,7 +73974,7 @@
                               "expression": {
                                 "argumentTypes": [
                                   {
-                                    "typeIdentifier": "t_enum$_TokenType_$2607",
+                                    "typeIdentifier": "t_enum$_TokenType_$2627",
                                     "typeString": "enum TokenTracker.TokenType"
                                   },
                                   {
@@ -73728,18 +73998,18 @@
                                     "typeString": "bytes calldata"
                                   }
                                 ],
-                                "id": 1870,
+                                "id": 1872,
                                 "name": "_transferToken",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
                                 "referencedDeclaration": 1561,
-                                "src": "15625:14:6",
+                                "src": "15655:14:6",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
+                                  "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$",
                                   "typeString": "function (enum TokenTracker.TokenType,address,uint256,address,uint256,bytes memory)"
                                 }
                               },
-                              "id": 1877,
+                              "id": 1879,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -73747,27 +74017,27 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "15625:71:6",
+                              "src": "15655:71:6",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_tuple$__$",
                                 "typeString": "tuple()"
                               }
                             },
-                            "id": 1878,
+                            "id": 1880,
                             "nodeType": "ExpressionStatement",
-                            "src": "15625:71:6"
+                            "src": "15655:71:6"
                           }
                         ]
                       }
                     },
-                    "id": 1921,
+                    "id": 1923,
                     "nodeType": "IfStatement",
-                    "src": "15324:791:6",
+                    "src": "15354:791:6",
                     "trueBody": {
-                      "id": 1865,
+                      "id": 1867,
                       "nodeType": "Block",
-                      "src": "15368:186:6",
+                      "src": "15398:186:6",
                       "statements": [
                         {
                           "condition": {
@@ -73775,32 +74045,32 @@
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             },
-                            "id": 1851,
+                            "id": 1853,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "leftExpression": {
                               "expression": {
-                                "id": 1848,
+                                "id": 1850,
                                 "name": "data",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
                                 "referencedDeclaration": 1765,
-                                "src": "15386:4:6",
+                                "src": "15416:4:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes_calldata_ptr",
                                   "typeString": "bytes calldata"
                                 }
                               },
-                              "id": 1849,
+                              "id": 1851,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
                               "lValueRequested": false,
                               "memberName": "length",
                               "nodeType": "MemberAccess",
-                              "src": "15386:11:6",
+                              "src": "15416:11:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -73810,41 +74080,41 @@
                             "operator": ">",
                             "rightExpression": {
                               "hexValue": "30",
-                              "id": 1850,
+                              "id": 1852,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": true,
                               "kind": "number",
                               "lValueRequested": false,
                               "nodeType": "Literal",
-                              "src": "15400:1:6",
+                              "src": "15430:1:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_rational_0_by_1",
                                 "typeString": "int_const 0"
                               },
                               "value": "0"
                             },
-                            "src": "15386:15:6",
+                            "src": "15416:15:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bool",
                               "typeString": "bool"
                             }
                           },
                           "falseBody": {
-                            "id": 1863,
+                            "id": 1865,
                             "nodeType": "Block",
-                            "src": "15492:52:6",
+                            "src": "15522:52:6",
                             "statements": [
                               {
                                 "expression": {
                                   "arguments": [
                                     {
-                                      "id": 1860,
+                                      "id": 1862,
                                       "name": "data",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1765,
-                                      "src": "15524:4:6",
+                                      "src": "15554:4:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_bytes_calldata_ptr",
                                         "typeString": "bytes calldata"
@@ -73858,18 +74128,18 @@
                                         "typeString": "bytes calldata"
                                       }
                                     ],
-                                    "id": 1859,
+                                    "id": 1861,
                                     "name": "_multiUntrack",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3813,
-                                    "src": "15510:13:6",
+                                    "referencedDeclaration": 3833,
+                                    "src": "15540:13:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_calldata_ptr_$returns$__$",
                                       "typeString": "function (bytes calldata)"
                                     }
                                   },
-                                  "id": 1861,
+                                  "id": 1863,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -73877,61 +74147,61 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "15510:19:6",
+                                  "src": "15540:19:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_tuple$__$",
                                     "typeString": "tuple()"
                                   }
                                 },
-                                "id": 1862,
+                                "id": 1864,
                                 "nodeType": "ExpressionStatement",
-                                "src": "15510:19:6"
+                                "src": "15540:19:6"
                               }
                             ]
                           },
-                          "id": 1864,
+                          "id": 1866,
                           "nodeType": "IfStatement",
-                          "src": "15382:162:6",
+                          "src": "15412:162:6",
                           "trueBody": {
-                            "id": 1858,
+                            "id": 1860,
                             "nodeType": "Block",
-                            "src": "15403:83:6",
+                            "src": "15433:83:6",
                             "statements": [
                               {
                                 "expression": {
                                   "arguments": [
                                     {
-                                      "id": 1853,
+                                      "id": 1855,
                                       "name": "tokenType",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1755,
-                                      "src": "15435:9:6",
+                                      "src": "15465:9:6",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_enum$_TokenType_$2607",
+                                        "typeIdentifier": "t_enum$_TokenType_$2627",
                                         "typeString": "enum TokenTracker.TokenType"
                                       }
                                     },
                                     {
-                                      "id": 1854,
+                                      "id": 1856,
                                       "name": "contractAddress",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1757,
-                                      "src": "15446:15:6",
+                                      "src": "15476:15:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_address",
                                         "typeString": "address"
                                       }
                                     },
                                     {
-                                      "id": 1855,
+                                      "id": 1857,
                                       "name": "tokenId",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
                                       "referencedDeclaration": 1759,
-                                      "src": "15463:7:6",
+                                      "src": "15493:7:6",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -73941,7 +74211,7 @@
                                   "expression": {
                                     "argumentTypes": [
                                       {
-                                        "typeIdentifier": "t_enum$_TokenType_$2607",
+                                        "typeIdentifier": "t_enum$_TokenType_$2627",
                                         "typeString": "enum TokenTracker.TokenType"
                                       },
                                       {
@@ -73953,18 +74223,18 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1852,
+                                    "id": 1854,
                                     "name": "_untrackToken",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 3307,
-                                    "src": "15421:13:6",
+                                    "referencedDeclaration": 3327,
+                                    "src": "15451:13:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
+                                      "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$returns$__$",
                                       "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                                     }
                                   },
-                                  "id": 1856,
+                                  "id": 1858,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
@@ -73972,16 +74242,16 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "15421:50:6",
+                                  "src": "15451:50:6",
                                   "tryCall": false,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_tuple$__$",
                                     "typeString": "tuple()"
                                   }
                                 },
-                                "id": 1857,
+                                "id": 1859,
                                 "nodeType": "ExpressionStatement",
-                                "src": "15421:50:6"
+                                "src": "15451:50:6"
                               }
                             ]
                           }
@@ -73989,13 +74259,13 @@
                       ]
                     }
                   },
-                  "id": 1922,
+                  "id": 1924,
                   "nodeType": "IfStatement",
-                  "src": "15094:1021:6",
+                  "src": "15124:1021:6",
                   "trueBody": {
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+                    "id": 1845,
                     "nodeType": "Block",
-                    "src": "15136:182:6",
+                    "src": "15166:182:6",
                     "statements": [
                       {
                         "condition": {
@@ -74003,32 +74273,32 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
-                          "id": 1829,
+                          "id": 1831,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
                             "expression": {
-                              "id": 1826,
+                              "id": 1828,
                               "name": "data",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 1765,
-                              "src": "15154:4:6",
+                              "src": "15184:4:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_calldata_ptr",
                                 "typeString": "bytes calldata"
                               }
                             },
-                            "id": 1827,
+                            "id": 1829,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "15154:11:6",
+                            "src": "15184:11:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -74038,65 +74308,65 @@
                           "operator": ">",
                           "rightExpression": {
                             "hexValue": "30",
-                            "id": 1828,
+                            "id": 1830,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "15168:1:6",
+                            "src": "15198:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_0_by_1",
                               "typeString": "int_const 0"
                             },
                             "value": "0"
                           },
-                          "src": "15154:15:6",
+                          "src": "15184:15:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
                         "falseBody": {
-                          "id": 1841,
+                          "id": 1843,
                           "nodeType": "Block",
-                          "src": "15227:81:6",
+                          "src": "15257:81:6",
                           "statements": [
                             {
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 1836,
+                                    "id": 1838,
                                     "name": "tokenType",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 1755,
-                                    "src": "15257:9:6",
+                                    "src": "15287:9:6",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_enum$_TokenType_$2607",
+                                      "typeIdentifier": "t_enum$_TokenType_$2627",
                                       "typeString": "enum TokenTracker.TokenType"
                                     }
                                   },
                                   {
-                                    "id": 1837,
+                                    "id": 1839,
                                     "name": "contractAddress",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 1757,
-                                    "src": "15268:15:6",
+                                    "src": "15298:15:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_address",
                                       "typeString": "address"
                                     }
                                   },
                                   {
-                                    "id": 1838,
+                                    "id": 1840,
                                     "name": "tokenId",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 1759,
-                                    "src": "15285:7:6",
+                                    "src": "15315:7:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint256",
                                       "typeString": "uint256"
@@ -74106,7 +74376,7 @@
                                 "expression": {
                                   "argumentTypes": [
                                     {
-                                      "typeIdentifier": "t_enum$_TokenType_$2607",
+                                      "typeIdentifier": "t_enum$_TokenType_$2627",
                                       "typeString": "enum TokenTracker.TokenType"
                                     },
                                     {
@@ -74118,18 +74388,18 @@
                                       "typeString": "uint256"
                                     }
                                   ],
-                                  "id": 1835,
+                                  "id": 1837,
                                   "name": "_trackToken",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 3089,
-                                  "src": "15245:11:6",
+                                  "referencedDeclaration": 3109,
+                                  "src": "15275:11:6",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2607_$_t_address_$_t_uint256_$returns$__$",
+                                    "typeIdentifier": "t_function_internal_nonpayable$_t_enum$_TokenType_$2627_$_t_address_$_t_uint256_$returns$__$",
                                     "typeString": "function (enum TokenTracker.TokenType,address,uint256)"
                                   }
                                 },
-                                "id": 1839,
+                                "id": 1841,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -74137,37 +74407,37 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "15245:48:6",
+                                "src": "15275:48:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_tuple$__$",
                                   "typeString": "tuple()"
                                 }
                               },
-                              "id": 1840,
+                              "id": 1842,
                               "nodeType": "ExpressionStatement",
-                              "src": "15245:48:6"
+                              "src": "15275:48:6"
                             }
                           ]
                         },
-                        "id": 1842,
+                        "id": 1844,
                         "nodeType": "IfStatement",
-                        "src": "15150:158:6",
+                        "src": "15180:158:6",
                         "trueBody": {
-                          "id": 1834,
+                          "id": 1836,
                           "nodeType": "Block",
-                          "src": "15171:50:6",
+                          "src": "15201:50:6",
                           "statements": [
                             {
                               "expression": {
                                 "arguments": [
                                   {
-                                    "id": 1831,
+                                    "id": 1833,
                                     "name": "data",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
                                     "referencedDeclaration": 1765,
-                                    "src": "15201:4:6",
+                                    "src": "15231:4:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_bytes_calldata_ptr",
                                       "typeString": "bytes calldata"
@@ -74181,18 +74451,18 @@
                                       "typeString": "bytes calldata"
                                     }
                                   ],
-                                  "id": 1830,
+                                  "id": 1832,
                                   "name": "_multiTrack",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 3705,
-                                  "src": "15189:11:6",
+                                  "referencedDeclaration": 3725,
+                                  "src": "15219:11:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_calldata_ptr_$returns$__$",
                                     "typeString": "function (bytes calldata)"
                                   }
                                 },
-                                "id": 1832,
+                                "id": 1834,
                                 "isConstant": false,
                                 "isLValue": false,
                                 "isPure": false,
@@ -74200,16 +74470,16 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "15189:17:6",
+                                "src": "15219:17:6",
                                 "tryCall": false,
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_tuple$__$",
                                   "typeString": "tuple()"
                                 }
                               },
-                              "id": 1833,
+                              "id": 1835,
                               "nodeType": "ExpressionStatement",
-                              "src": "15189:17:6"
+                              "src": "15219:17:6"
                             }
                           ]
                         }
@@ -74220,7 +74490,7 @@
               ]
             },
             "functionSelector": "c34a6dad",
-            "id": 1924,
+            "id": 1926,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
@@ -74238,7 +74508,7 @@
                   "name": "neighbors",
                   "nameLocation": "14270:9:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14251:28:6",
                   "stateVariable": false,
                   "storageLocation": "calldata",
@@ -74274,7 +74544,7 @@
                   "name": "indexWithNonce",
                   "nameLocation": "14288:14:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14281:21:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -74301,7 +74571,7 @@
                   "name": "eotp",
                   "nameLocation": "14312:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14304:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -74328,7 +74598,7 @@
                   "name": "operationType",
                   "nameLocation": "14340:13:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14326:27:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -74362,12 +74632,12 @@
                   "name": "tokenType",
                   "nameLocation": "14365:9:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14355:19:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
-                    "typeIdentifier": "t_enum$_TokenType_$2607",
+                    "typeIdentifier": "t_enum$_TokenType_$2627",
                     "typeString": "enum TokenTracker.TokenType"
                   },
                   "typeName": {
@@ -74377,13 +74647,13 @@
                       "id": 1753,
                       "name": "TokenType",
                       "nodeType": "IdentifierPath",
-                      "referencedDeclaration": 2607,
+                      "referencedDeclaration": 2627,
                       "src": "14355:9:6"
                     },
-                    "referencedDeclaration": 2607,
+                    "referencedDeclaration": 2627,
                     "src": "14355:9:6",
                     "typeDescriptions": {
-                      "typeIdentifier": "t_enum$_TokenType_$2607",
+                      "typeIdentifier": "t_enum$_TokenType_$2627",
                       "typeString": "enum TokenTracker.TokenType"
                     }
                   },
@@ -74396,7 +74666,7 @@
                   "name": "contractAddress",
                   "nameLocation": "14384:15:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14376:23:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -74424,7 +74694,7 @@
                   "name": "tokenId",
                   "nameLocation": "14409:7:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14401:15:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -74451,7 +74721,7 @@
                   "name": "dest",
                   "nameLocation": "14434:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14418:20:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -74479,7 +74749,7 @@
                   "name": "amount",
                   "nameLocation": "14448:6:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14440:14:6",
                   "stateVariable": false,
                   "storageLocation": "default",
@@ -74506,7 +74776,7 @@
                   "name": "data",
                   "nameLocation": "14471:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1924,
+                  "scope": 1926,
                   "src": "14456:19:6",
                   "stateVariable": false,
                   "storageLocation": "calldata",
@@ -74535,17 +74805,17 @@
               "parameters": [],
               "src": "14490:0:6"
             },
-            "scope": 2592,
-            "src": "14235:1886:6",
+            "scope": 2612,
+            "src": "14235:1916:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "external"
           },
           {
             "body": {
-              "id": 2027,
+              "id": 2029,
               "nodeType": "Block",
-              "src": "16350:604:6",
+              "src": "16380:604:6",
               "statements": [
                 {
                   "expression": {
@@ -74555,32 +74825,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 1941,
+                        "id": 1943,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 1936,
+                            "id": 1938,
                             "name": "neighbors",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1928,
-                            "src": "16368:9:6",
+                            "referencedDeclaration": 1930,
+                            "src": "16398:9:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_bytes32_$dyn_calldata_ptr",
                               "typeString": "bytes32[] calldata"
                             }
                           },
-                          "id": 1937,
+                          "id": 1939,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "16368:16:6",
+                          "src": "16398:16:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -74593,18 +74863,18 @@
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
                           },
-                          "id": 1940,
+                          "id": 1942,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 1938,
+                            "id": 1940,
                             "name": "height",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 439,
-                            "src": "16388:6:6",
+                            "src": "16418:6:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint8",
                               "typeString": "uint8"
@@ -74614,27 +74884,27 @@
                           "operator": "-",
                           "rightExpression": {
                             "hexValue": "31",
-                            "id": 1939,
+                            "id": 1941,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "16397:1:6",
+                            "src": "16427:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_1_by_1",
                               "typeString": "int_const 1"
                             },
                             "value": "1"
                           },
-                          "src": "16388:10:6",
+                          "src": "16418:10:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
                           }
                         },
-                        "src": "16368:30:6",
+                        "src": "16398:30:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -74642,14 +74912,14 @@
                       },
                       {
                         "hexValue": "4e6f7420656e6f756768206e65696768626f72732070726f7669646564",
-                        "id": 1942,
+                        "id": 1944,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "16400:31:6",
+                        "src": "16430:31:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_83d08d6dcf099c52fbe149a08cb4ffd65f3fec6dbf87dba7bc08b7a534982441",
                           "typeString": "literal_string \"Not enough neighbors provided\""
@@ -74668,7 +74938,7 @@
                           "typeString": "literal_string \"Not enough neighbors provided\""
                         }
                       ],
-                      "id": 1935,
+                      "id": 1937,
                       "name": "require",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
@@ -74676,13 +74946,13 @@
                         4294967278
                       ],
                       "referencedDeclaration": 4294967278,
-                      "src": "16360:7:6",
+                      "src": "16390:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (bool,string memory) pure"
                       }
                     },
-                    "id": 1943,
+                    "id": 1945,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -74690,31 +74960,31 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "16360:72:6",
+                    "src": "16390:72:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 1944,
+                  "id": 1946,
                   "nodeType": "ExpressionStatement",
-                  "src": "16360:72:6"
+                  "src": "16390:72:6"
                 },
                 {
                   "assignments": [
-                    1946
+                    1948
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 1946,
+                      "id": 1948,
                       "mutability": "mutable",
                       "name": "h",
-                      "nameLocation": "16450:1:6",
+                      "nameLocation": "16480:1:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2027,
-                      "src": "16442:9:6",
+                      "scope": 2029,
+                      "src": "16472:9:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -74722,10 +74992,10 @@
                         "typeString": "bytes32"
                       },
                       "typeName": {
-                        "id": 1945,
+                        "id": 1947,
                         "name": "bytes32",
                         "nodeType": "ElementaryTypeName",
-                        "src": "16442:7:6",
+                        "src": "16472:7:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes32",
                           "typeString": "bytes32"
@@ -74734,18 +75004,18 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 1954,
+                  "id": 1956,
                   "initialValue": {
                     "arguments": [
                       {
                         "arguments": [
                           {
-                            "id": 1951,
+                            "id": 1953,
                             "name": "eotp",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 1932,
-                            "src": "16474:4:6",
+                            "referencedDeclaration": 1934,
+                            "src": "16504:4:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
@@ -74760,39 +75030,39 @@
                             }
                           ],
                           "expression": {
-                            "id": 1949,
+                            "id": 1951,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "lValueRequested": false,
                             "nodeType": "ElementaryTypeNameExpression",
-                            "src": "16461:5:6",
+                            "src": "16491:5:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_type$_t_bytes_storage_ptr_$",
                               "typeString": "type(bytes storage pointer)"
                             },
                             "typeName": {
-                              "id": 1948,
+                              "id": 1950,
                               "name": "bytes",
                               "nodeType": "ElementaryTypeName",
-                              "src": "16461:5:6",
+                              "src": "16491:5:6",
                               "typeDescriptions": {}
                             }
                           },
-                          "id": 1950,
+                          "id": 1952,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "concat",
                           "nodeType": "MemberAccess",
-                          "src": "16461:12:6",
+                          "src": "16491:12:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                             "typeString": "function () pure returns (bytes memory)"
                           }
                         },
-                        "id": 1952,
+                        "id": 1954,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -74800,7 +75070,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "16461:18:6",
+                        "src": "16491:18:6",
                         "tryCall": false,
                         "typeDescriptions": {
                           "typeIdentifier": "t_bytes_memory_ptr",
@@ -74815,18 +75085,18 @@
                           "typeString": "bytes memory"
                         }
                       ],
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+                      "id": 1949,
                       "name": "sha256",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 4294967274,
-                      "src": "16454:6:6",
+                      "src": "16484:6:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_sha256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                         "typeString": "function (bytes memory) pure returns (bytes32)"
                       }
                     },
-                    "id": 1953,
+                    "id": 1955,
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@@ -74834,7 +75104,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "16454:26:6",
+                    "src": "16484:26:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
@@ -74842,7 +75112,7 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "16442:38:6"
+                  "src": "16472:38:6"
                 },
                 {
                   "condition": {
@@ -74850,18 +75120,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
-                    "id": 1959,
+                    "id": 1961,
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                     "leftExpression": {
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                       "name": "position",
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-                      "referencedDeclaration": 1930,
-                      "src": "16494:8:6",
+                      "referencedDeclaration": 1932,
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                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -74874,18 +75144,18 @@
                         "typeIdentifier": "t_uint32",
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@@ -74895,54 +75165,54 @@
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@@ -74951,35 +75221,35 @@
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                             "typeString": "bytes32"
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@@ -74987,7 +75257,7 @@
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@@ -74999,18 +75269,18 @@
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
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@@ -75020,35 +75290,35 @@
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                                     "typeString": "int_const 1"
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@@ -75058,45 +75328,45 @@
                           "operator": "==",
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                               "typeString": "int_const 1"
                             },
                             "value": "0x01"
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@@ -75109,12 +75379,12 @@
                                     {
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@@ -75122,25 +75392,25 @@
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                                               "typeString": "bytes32[] calldata"
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@@ -75151,7 +75421,7 @@
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@@ -75170,39 +75440,39 @@
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@@ -75210,7 +75480,7 @@
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@@ -75225,18 +75495,18 @@
                                         "typeString": "bytes memory"
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@@ -75244,47 +75514,47 @@
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@@ -75298,25 +75568,25 @@
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                                               "typeString": "bytes32[] calldata"
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@@ -75327,19 +75597,19 @@
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                                             "typeString": "bytes32"
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@@ -75358,39 +75628,39 @@
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                                             "typeString": "type(bytes storage pointer)"
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+                                        "src": "16749:12:6",
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@@ -75398,7 +75668,7 @@
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@@ -75413,18 +75683,18 @@
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@@ -75432,40 +75702,40 @@
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                                     "typeString": "bytes32"
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                                   "typeString": "bytes32"
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@@ -75475,29 +75745,29 @@
                           "operator": ">>=",
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+                            "src": "16900:1:6",
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                               "typeString": "int_const 1"
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                             "value": "1"
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+                          "src": "16887:14:6",
                           "typeDescriptions": {
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                             "typeString": "uint32"
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+                        "id": 2018,
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@@ -75506,18 +75776,18 @@
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@@ -75530,18 +75800,18 @@
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@@ -75551,47 +75821,47 @@
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@@ -75674,18 +75944,18 @@
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@@ -75814,18 +76084,18 @@
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@@ -75835,13 +76105,13 @@
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@@ -75849,10 +76119,10 @@
                     "typeString": "uint32"
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@@ -75862,13 +76132,13 @@
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@@ -75876,10 +76146,10 @@
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@@ -75888,40 +76158,40 @@
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@@ -75929,10 +76199,10 @@
                         "typeString": "uint32"
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@@ -75941,17 +76211,17 @@
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@@ -75959,22 +76229,22 @@
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@@ -75982,10 +76252,10 @@
                         "typeString": "uint32"
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@@ -75994,30 +76264,30 @@
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@@ -76031,26 +76301,26 @@
                           "typeString": "uint256"
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@@ -76058,7 +76328,7 @@
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@@ -76066,28 +76336,28 @@
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@@ -76095,10 +76365,10 @@
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@@ -76107,28 +76377,28 @@
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                               "typeString": "bytes32[] storage ref"
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@@ -76139,29 +76409,29 @@
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@@ -76170,25 +76440,25 @@
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@@ -76197,28 +76467,28 @@
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@@ -76229,14 +76499,14 @@
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                           "nodeType": "IndexAccess",
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                             "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
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@@ -76244,32 +76514,32 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
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                                 "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
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@@ -76279,56 +76549,56 @@
                           "operator": "==",
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                               "typeString": "int_const 0"
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@@ -76336,17 +76606,17 @@
                               "typeString": "struct ONEWallet.Commit"
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@@ -76355,31 +76625,31 @@
                             "visibility": "internal"
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@@ -76391,19 +76661,19 @@
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                             "typeString": "struct ONEWallet.Commit storage ref"
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@@ -76411,25 +76681,25 @@
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@@ -76437,7 +76707,7 @@
                                 "memberName": "timestamp",
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@@ -76450,18 +76720,18 @@
                                   "typeIdentifier": "t_uint32",
                                   "typeString": "uint32"
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@@ -76470,41 +76740,41 @@
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                                     "typeString": "uint32"
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                                   "typeString": "uint32"
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                                 "typeString": "bool"
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@@ -76518,18 +76788,18 @@
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@@ -76539,40 +76809,40 @@
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+                        "id": 2047,
                         "name": "commits",
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                         "referencedDeclaration": 507,
-                        "src": "17716:7:6",
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                           "typeString": "bytes32[] storage ref"
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                         "typeString": "uint256"
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@@ -76580,14 +76850,14 @@
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                       "operator": "++",
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@@ -76598,12 +76868,12 @@
                         "typeString": "uint32"
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@@ -76611,18 +76881,18 @@
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@@ -76632,63 +76902,63 @@
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                         "typeString": "int_const 0"
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                       "value": "0"
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-                    "src": "18785:16:6",
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                         "nodeType": "Return",
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@@ -76696,10 +76966,10 @@
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+                              "id": 2110,
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@@ -76708,28 +76978,28 @@
                             "visibility": "internal"
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                               "typeString": "bytes32[] storage ref"
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@@ -76740,29 +77010,29 @@
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@@ -76771,25 +77041,25 @@
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                                   "typeString": "struct ONEWallet.Commit"
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                                 "typeString": "struct ONEWallet.Commit[]"
@@ -76798,28 +77068,28 @@
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-                            "src": "19171:12:6",
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                               "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
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@@ -76830,24 +77100,24 @@
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@@ -76855,28 +77125,28 @@
                                 "nodeType": "UnaryOperation",
                                 "operator": "delete",
                                 "prefix": true,
-                                "src": "19260:12:6",
+                                "src": "19290:12:6",
                                 "subExpression": {
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+                                    "id": 2136,
                                     "name": "cc",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 2118,
-                                    "src": "19267:2:6",
+                                    "referencedDeclaration": 2120,
+                                    "src": "19297:2:6",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                       "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                                     }
                                   },
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+                                  "id": 2138,
                                   "indexExpression": {
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+                                    "id": 2137,
                                     "name": "j",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
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-                                    "src": "19270:1:6",
+                                    "referencedDeclaration": 2126,
+                                    "src": "19300:1:6",
                                     "typeDescriptions": {
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                                       "typeString": "uint32"
@@ -76887,7 +77157,7 @@
                                   "isPure": false,
                                   "lValueRequested": true,
                                   "nodeType": "IndexAccess",
-                                  "src": "19267:5:6",
+                                  "src": "19297:5:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_struct$_Commit_$504_storage",
                                     "typeString": "struct ONEWallet.Commit storage ref"
@@ -76898,9 +77168,9 @@
                                   "typeString": "tuple()"
                                 }
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+                              "id": 2140,
                               "nodeType": "ExpressionStatement",
-                              "src": "19260:12:6"
+                              "src": "19290:12:6"
                             }
                           ]
                         },
@@ -76909,18 +77179,18 @@
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
                           },
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+                          "id": 2132,
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                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2124,
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+                            "referencedDeclaration": 2126,
+                            "src": "19252:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -76930,51 +77200,51 @@
                           "operator": "<",
                           "rightExpression": {
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+                              "id": 2130,
                               "name": "cc",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2118,
-                              "src": "19226:2:6",
+                              "referencedDeclaration": 2120,
+                              "src": "19256:2:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                               }
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+                            "id": 2131,
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                             "lValueRequested": false,
                             "memberName": "length",
                             "nodeType": "MemberAccess",
-                            "src": "19226:9:6",
+                            "src": "19256:9:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
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+                          "src": "19252:13:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
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+                        "id": 2142,
                         "initializationExpression": {
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+                            2126
                           ],
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                               "constant": false,
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+                              "id": 2126,
                               "mutability": "mutable",
                               "name": "j",
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+                              "src": "19238:8:6",
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@@ -76982,10 +77252,10 @@
                                 "typeString": "uint32"
                               },
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+                                "id": 2125,
                                 "name": "uint32",
                                 "nodeType": "ElementaryTypeName",
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+                                "src": "19238:6:6",
                                 "typeDescriptions": {
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                                   "typeString": "uint32"
@@ -76994,17 +77264,17 @@
                               "visibility": "internal"
                             }
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                           "initialValue": {
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                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_0_by_1",
                               "typeString": "int_const 0"
@@ -77012,11 +77282,11 @@
                             "value": "0"
                           },
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+                          "src": "19238:12:6"
                         },
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@@ -77024,14 +77294,14 @@
                             "nodeType": "UnaryOperation",
                             "operator": "++",
                             "prefix": false,
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                                 "typeString": "uint32"
@@ -77042,16 +77312,16 @@
                               "typeString": "uint32"
                             }
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@@ -77059,28 +77329,28 @@
                           "nodeType": "UnaryOperation",
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                           "prefix": true,
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                               "name": "commitLocker",
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                               "referencedDeclaration": 513,
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                               "typeDescriptions": {
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                                 "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
                               }
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                                 "typeString": "bytes32"
@@ -77091,7 +77361,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
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                               "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
@@ -77102,9 +77372,9 @@
                             "typeString": "tuple()"
                           }
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@@ -77113,18 +77383,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
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@@ -77133,38 +77403,38 @@
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                       "name": "timelyIndex",
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                         "typeString": "uint32"
                       }
                     },
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                       "typeString": "bool"
                     }
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                     ],
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                         "mutability": "mutable",
                         "name": "i",
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                         "stateVariable": false,
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@@ -77172,10 +77442,10 @@
                           "typeString": "uint32"
                         },
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+                          "id": 2100,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "19060:6:6",
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                             "typeString": "uint32"
@@ -77184,17 +77454,17 @@
                         "visibility": "internal"
                       }
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                       "nodeType": "Literal",
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                         "typeString": "int_const 0"
@@ -77202,11 +77472,11 @@
                       "value": "0"
                     },
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@@ -77214,14 +77484,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
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                         "overloadedDeclarations": [],
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@@ -77232,27 +77502,27 @@
                         "typeString": "uint32"
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@@ -77260,10 +77530,10 @@
                         "typeString": "uint32"
                       },
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+                        "id": 2150,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
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                         "typeDescriptions": {
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                           "typeString": "uint32"
@@ -77272,30 +77542,30 @@
                       "visibility": "internal"
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                   "initialValue": {
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                           "name": "commits",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
                           "referencedDeclaration": 507,
-                          "src": "19541:7:6",
+                          "src": "19571:7:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_array$_t_bytes32_$dyn_storage",
                             "typeString": "bytes32[] storage ref"
                           }
                         },
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                         "lValueRequested": false,
                         "memberName": "length",
                         "nodeType": "MemberAccess",
-                        "src": "19541:14:6",
+                        "src": "19571:14:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -77309,26 +77579,26 @@
                           "typeString": "uint256"
                         }
                       ],
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                       "isPure": true,
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                       "nodeType": "ElementaryTypeNameExpression",
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                       "typeDescriptions": {
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                         "typeString": "type(uint32)"
                       },
                       "typeName": {
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+                        "id": 2152,
                         "name": "uint32",
                         "nodeType": "ElementaryTypeName",
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                       }
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@@ -77336,7 +77606,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
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+                    "src": "19564:22:6",
                     "tryCall": false,
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@@ -77344,57 +77614,57 @@
                     }
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                         "nodeType": "UncheckedBlock",
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                               "leftHandSide": {
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                                   "name": "commits",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
                                   "referencedDeclaration": 507,
-                                  "src": "19642:7:6",
+                                  "src": "19672:7:6",
                                   "typeDescriptions": {
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                                     "typeString": "bytes32[] storage ref"
                                   }
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                                 "indexExpression": {
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                                     "typeString": "uint32"
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                                     "name": "i",
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@@ -77403,18 +77673,18 @@
                                   "nodeType": "BinaryOperation",
                                   "operator": "-",
                                   "rightExpression": {
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+                                    "id": 2170,
                                     "name": "timelyIndex",
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                                     "typeDescriptions": {
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                                       "typeString": "uint32"
                                     }
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                                     "typeString": "uint32"
@@ -77425,7 +77695,7 @@
                                 "isPure": false,
                                 "lValueRequested": true,
                                 "nodeType": "IndexAccess",
-                                "src": "19642:24:6",
+                                "src": "19672:24:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
@@ -77435,25 +77705,25 @@
                               "operator": "=",
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+                                  "id": 2173,
                                   "name": "commits",
                                   "nodeType": "Identifier",
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                                   "referencedDeclaration": 507,
-                                  "src": "19669:7:6",
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                                   "typeDescriptions": {
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                                     "typeString": "bytes32[] storage ref"
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@@ -77464,21 +77734,21 @@
                                 "isPure": false,
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                                 "nodeType": "IndexAccess",
-                                "src": "19669:10:6",
+                                "src": "19699:10:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes32",
                                   "typeString": "bytes32"
                                 }
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+                              "src": "19672:37:6",
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                                 "typeString": "bytes32"
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+                            "src": "19672:37:6"
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@@ -77489,18 +77759,18 @@
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@@ -77509,38 +77779,38 @@
                     "nodeType": "BinaryOperation",
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                         "typeString": "uint32"
                       }
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                         "name": "i",
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                         "nodeType": "VariableDeclaration",
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-                        "src": "19571:8:6",
+                        "scope": 2180,
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@@ -77548,10 +77818,10 @@
                           "typeString": "uint32"
                         },
                         "typeName": {
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+                          "id": 2158,
                           "name": "uint32",
                           "nodeType": "ElementaryTypeName",
-                          "src": "19571:6:6",
+                          "src": "19601:6:6",
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                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
@@ -77560,25 +77830,25 @@
                         "visibility": "internal"
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                         "typeString": "uint32"
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@@ -77586,14 +77856,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "19604:3:6",
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                         "overloadedDeclarations": [],
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+                        "referencedDeclaration": 2159,
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                           "typeString": "uint32"
@@ -77604,18 +77874,18 @@
                         "typeString": "uint32"
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@@ -77623,31 +77893,31 @@
                           "expression": {
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                               "name": "commits",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 507,
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                             "memberName": "pop",
                             "nodeType": "MemberAccess",
-                            "src": "19764:11:6",
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@@ -77655,16 +77925,16 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "19764:13:6",
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@@ -77673,18 +77943,18 @@
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@@ -77693,38 +77963,38 @@
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@@ -77732,10 +78002,10 @@
                           "typeString": "uint32"
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@@ -77744,17 +78014,17 @@
                         "visibility": "internal"
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@@ -77762,11 +78032,11 @@
                       "value": "0"
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@@ -77774,14 +78044,14 @@
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@@ -77792,51 +78062,51 @@
                         "typeString": "uint32"
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               "text": "Remove old commits from storage, where the commit's timestamp is older than block.timestamp - REVEAL_MAX_DELAY. The purpose is to remove dangling data from blockchain, and prevent commits grow unbounded. This is executed at commit time. The committer pays for the gas of this cleanup. Therefore, any attacker who intend to spam commits would be disincentivized. The attacker would not succeed in preventing any normal operation by the user."
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@@ -77844,7 +78114,7 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
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@@ -77854,7 +78124,7 @@
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
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@@ -77863,25 +78133,25 @@
                         "arguments": [
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                               "typeDescriptions": {
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                                 "typeString": "block"
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                             "memberName": "timestamp",
                             "nodeType": "MemberAccess",
-                            "src": "20045:15:6",
+                            "src": "20075:15:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
@@ -77895,26 +78165,26 @@
                               "typeString": "uint256"
                             }
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                           "nodeType": "ElementaryTypeNameExpression",
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                           "typeDescriptions": {
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                             "typeString": "type(uint32)"
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+                            "id": 2206,
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@@ -77922,7 +78192,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
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@@ -77932,18 +78202,18 @@
                       "nodeType": "BinaryOperation",
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+                        "id": 2211,
                         "name": "commitTime",
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                           "typeString": "uint32"
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@@ -77952,50 +78222,50 @@
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                         "typeString": "uint32"
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             "modifiers": [],
             "name": "_isRevealTimely",
-            "nameLocation": "19953:15:6",
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@@ -78003,10 +78273,10 @@
                     "typeString": "uint32"
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@@ -78015,21 +78285,21 @@
                   "visibility": "internal"
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@@ -78037,10 +78307,10 @@
                     "typeString": "bool"
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@@ -78049,34 +78319,34 @@
                   "visibility": "internal"
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@@ -78084,10 +78354,10 @@
                         "typeString": "uint32"
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                         "name": "uint32",
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                         "typeDescriptions": {
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@@ -78096,24 +78366,24 @@
                       "visibility": "internal"
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@@ -78122,40 +78392,40 @@
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-                      "src": "20557:24:6",
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                         "typeString": "uint8"
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-                    "src": "20540:41:6",
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                       "name": "nonce",
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@@ -78163,10 +78433,10 @@
                         "typeString": "uint8"
                       },
                       "typeName": {
-                        "id": 2235,
+                        "id": 2240,
                         "name": "uint8",
                         "nodeType": "ElementaryTypeName",
-                        "src": "20591:5:6",
+                        "src": "20650:5:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint8",
                           "typeString": "uint8"
@@ -78175,7 +78445,7 @@
                       "visibility": "internal"
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                       {
@@ -78183,18 +78453,18 @@
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
                         },
-                        "id": 2241,
+                        "id": 2246,
                         "isConstant": false,
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                         "lValueRequested": false,
                         "leftExpression": {
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                           "name": "indexWithNonce",
                           "nodeType": "Identifier",
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-                          "referencedDeclaration": 2220,
-                          "src": "20611:14:6",
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@@ -78203,18 +78473,18 @@
                         "nodeType": "BinaryOperation",
                         "operator": "%",
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                           "typeDescriptions": {
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
                           }
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-                        "src": "20611:41:6",
+                        "src": "20670:41:6",
                         "typeDescriptions": {
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@@ -78228,26 +78498,26 @@
                           "typeString": "uint32"
                         }
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                       "typeDescriptions": {
                         "typeIdentifier": "t_type$_t_uint8_$",
                         "typeString": "type(uint8)"
                       },
                       "typeName": {
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+                        "id": 2242,
                         "name": "uint8",
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@@ -78255,7 +78525,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
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@@ -78263,22 +78533,22 @@
                     }
                   },
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                       "stateVariable": false,
                       "storageLocation": "storage",
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@@ -78287,25 +78557,25 @@
                       },
                       "typeName": {
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+                          "id": 2251,
                           "nodeType": "UserDefinedTypeName",
                           "pathNode": {
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+                            "id": 2250,
                             "name": "Commit",
                             "nodeType": "IdentifierPath",
                             "referencedDeclaration": 504,
-                            "src": "20663:6:6"
+                            "src": "20722:6:6"
                           },
                           "referencedDeclaration": 504,
-                          "src": "20663:6:6",
+                          "src": "20722:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                             "typeString": "struct ONEWallet.Commit"
                           }
                         },
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+                        "id": 2252,
                         "nodeType": "ArrayTypeName",
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                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                           "typeString": "struct ONEWallet.Commit[]"
@@ -78314,28 +78584,28 @@
                       "visibility": "internal"
                     }
                   ],
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+                  "id": 2257,
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+                      "id": 2254,
                       "name": "commitLocker",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 513,
-                      "src": "20685:12:6",
+                      "src": "20744:12:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                         "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
                       }
                     },
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                       "name": "hash",
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                       "overloadedDeclarations": [],
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                       "typeDescriptions": {
                         "typeIdentifier": "t_bytes32",
                         "typeString": "bytes32"
@@ -78346,14 +78616,14 @@
                     "isPure": false,
                     "lValueRequested": false,
                     "nodeType": "IndexAccess",
-                    "src": "20685:18:6",
+                    "src": "20744:18:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                       "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
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                   },
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+                  "src": "20722:40:6"
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@@ -78363,32 +78633,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 2257,
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                         "leftExpression": {
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                             "name": "cc",
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                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                             }
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                           "memberName": "length",
                           "nodeType": "MemberAccess",
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                           "typeDescriptions": {
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                             "typeString": "uint256"
@@ -78398,21 +78668,21 @@
                         "operator": ">",
                         "rightExpression": {
                           "hexValue": "30",
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                           "kind": "number",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "20733:1:6",
+                          "src": "20792:1:6",
                           "typeDescriptions": {
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                             "typeString": "int_const 0"
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                           "value": "0"
                         },
-                        "src": "20721:13:6",
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                         "typeDescriptions": {
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@@ -78420,14 +78690,14 @@
                       },
                       {
                         "hexValue": "4e6f20636f6d6d697420666f756e64",
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                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "20736:17:6",
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                           "typeString": "literal_string \"No commit found\""
@@ -78446,7 +78716,7 @@
                           "typeString": "literal_string \"No commit found\""
                         }
                       ],
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@@ -78454,13 +78724,13 @@
                         4294967278
                       ],
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                         "typeString": "function (bool,string memory) pure"
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@@ -78468,37 +78738,37 @@
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                       "typeString": "tuple()"
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+                          2279
                         ],
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                             "name": "c",
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                             "storageLocation": "storage",
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@@ -78506,17 +78776,17 @@
                               "typeString": "struct ONEWallet.Commit"
                             },
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                               "nodeType": "UserDefinedTypeName",
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                               "typeDescriptions": {
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                                 "typeString": "struct ONEWallet.Commit"
@@ -78525,28 +78795,28 @@
                             "visibility": "internal"
                           }
                         ],
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                         "initialValue": {
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                             "overloadedDeclarations": [],
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                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
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                             "name": "i",
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                               "typeString": "uint32"
@@ -78557,29 +78827,29 @@
                           "isPure": false,
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                           "nodeType": "IndexAccess",
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                             "typeString": "struct ONEWallet.Commit storage ref"
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
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+                        "src": "20876:24:6"
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                         ],
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                             "mutability": "mutable",
                             "name": "expectedVerificationHash",
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                             "stateVariable": false,
                             "storageLocation": "default",
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@@ -78587,10 +78857,10 @@
                               "typeString": "bytes32"
                             },
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+                              "id": 2284,
                               "name": "bytes32",
                               "nodeType": "ElementaryTypeName",
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+                              "src": "20914:7:6",
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                                 "typeIdentifier": "t_bytes32",
                                 "typeString": "bytes32"
@@ -78599,25 +78869,25 @@
                             "visibility": "internal"
                           }
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                         "initialValue": {
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-                                    "src": "20913:1:6",
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                                     "typeDescriptions": {
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                                       "typeString": "struct ONEWallet.Commit storage pointer"
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@@ -78625,19 +78895,19 @@
                                   "memberName": "paramsHash",
                                   "nodeType": "MemberAccess",
                                   "referencedDeclaration": 497,
-                                  "src": "20913:12:6",
+                                  "src": "20972:12:6",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes32",
                                     "typeString": "bytes32"
                                   }
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-                                  "id": 2287,
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                                     "typeString": "bytes32"
@@ -78656,39 +78926,39 @@
                                   }
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                                   "nodeType": "ElementaryTypeNameExpression",
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                                     "typeString": "type(bytes storage pointer)"
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+                                    "id": 2287,
                                     "name": "bytes",
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                                 "memberName": "concat",
                                 "nodeType": "MemberAccess",
-                                "src": "20900:12:6",
+                                "src": "20959:12:6",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_bytesconcat_pure$__$returns$_t_bytes_memory_ptr_$",
                                   "typeString": "function () pure returns (bytes memory)"
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@@ -78696,7 +78966,7 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
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+                              "src": "20959:32:6",
                               "tryCall": false,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_bytes_memory_ptr",
@@ -78711,18 +78981,18 @@
                                 "typeString": "bytes memory"
                               }
                             ],
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                             "name": "keccak256",
                             "nodeType": "Identifier",
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                             "referencedDeclaration": 4294967288,
-                            "src": "20890:9:6",
+                            "src": "20949:9:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$",
                               "typeString": "function (bytes memory) pure returns (bytes32)"
                             }
                           },
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@@ -78730,7 +79000,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
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                             "typeIdentifier": "t_bytes32",
@@ -78738,7 +79008,7 @@
                           }
                         },
                         "nodeType": "VariableDeclarationStatement",
-                        "src": "20855:78:6"
+                        "src": "20914:78:6"
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                         "condition": {
@@ -78746,25 +79016,25 @@
                             "typeIdentifier": "t_bytes32",
                             "typeString": "bytes32"
                           },
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                               "name": "c",
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                               "typeDescriptions": {
                                 "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                                 "typeString": "struct ONEWallet.Commit storage pointer"
                               }
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@@ -78772,7 +79042,7 @@
                             "memberName": "verificationHash",
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+                            "src": "21010:18:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
@@ -78781,35 +79051,35 @@
                           "nodeType": "BinaryOperation",
                           "operator": "!=",
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+                            "id": 2298,
                             "name": "expectedVerificationHash",
                             "nodeType": "Identifier",
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                             "typeDescriptions": {
                               "typeIdentifier": "t_bytes32",
                               "typeString": "bytes32"
                             }
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                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
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@@ -79334,22 +79194,501 @@
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                             "typeString": "uint32"
@@ -79688,17 +80027,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2264,
+                    "id": 2269,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 2263,
+                      "id": 2268,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "20780:1:6",
+                      "src": "20839:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -79706,11 +80045,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "20769:12:6"
+                    "src": "20828:12:6"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 2270,
+                      "id": 2275,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -79718,14 +80057,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "20798:3:6",
+                      "src": "20857:3:6",
                       "subExpression": {
-                        "id": 2269,
+                        "id": 2274,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2262,
-                        "src": "20798:1:6",
+                        "referencedDeclaration": 2267,
+                        "src": "20857:1:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint32",
                           "typeString": "uint32"
@@ -79736,26 +80075,26 @@
                         "typeString": "uint32"
                       }
                     },
-                    "id": 2271,
+                    "id": 2276,
                     "nodeType": "ExpressionStatement",
-                    "src": "20798:3:6"
+                    "src": "20857:3:6"
                   },
                   "nodeType": "ForStatement",
-                  "src": "20764:1209:6"
+                  "src": "20823:1297:6"
                 },
                 {
                   "expression": {
                     "arguments": [
                       {
                         "hexValue": "4e6f2076616c696420636f6d6d6974",
-                        "id": 2355,
+                        "id": 2366,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "21989:17:6",
+                        "src": "22136:17:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_c3972966c6b890cd04bd250ec8fd05d1950759334a3d8fa4e9bb3d0693e9952d",
                           "typeString": "literal_string \"No valid commit\""
@@ -79770,7 +80109,7 @@
                           "typeString": "literal_string \"No valid commit\""
                         }
                       ],
-                      "id": 2354,
+                      "id": 2365,
                       "name": "revert",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
@@ -79778,13 +80117,13 @@
                         4294967277
                       ],
                       "referencedDeclaration": 4294967277,
-                      "src": "21982:6:6",
+                      "src": "22129:6:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_revert_pure$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (string memory) pure"
                       }
                     },
-                    "id": 2356,
+                    "id": 2367,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -79792,45 +80131,45 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "21982:25:6",
+                    "src": "22129:25:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2357,
+                  "id": 2368,
                   "nodeType": "ExpressionStatement",
-                  "src": "21982:25:6"
+                  "src": "22129:25:6"
                 }
               ]
             },
             "documentation": {
-              "id": 2216,
+              "id": 2218,
               "nodeType": "StructuredDocumentation",
-              "src": "20106:275:6",
+              "src": "20136:275:6",
               "text": "This function verifies that the first valid entry with respect to the given `eotp` in `commitLocker[hash]` matches the provided `paramsHash` and `verificationHash`. An entry is valid with respect to `eotp` iff `h3(entry.paramsHash . eotp)` equals `entry.verificationHash`"
             },
-            "id": 2359,
+            "id": 2370,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_verifyReveal",
-            "nameLocation": "20395:13:6",
+            "nameLocation": "20425:13:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2225,
+              "id": 2230,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2218,
+                  "id": 2220,
                   "mutability": "mutable",
                   "name": "hash",
-                  "nameLocation": "20417:4:6",
+                  "nameLocation": "20447:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2359,
-                  "src": "20409:12:6",
+                  "scope": 2370,
+                  "src": "20439:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -79838,10 +80177,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 2217,
+                    "id": 2219,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "20409:7:6",
+                    "src": "20439:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -79851,13 +80190,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2220,
+                  "id": 2222,
                   "mutability": "mutable",
                   "name": "indexWithNonce",
-                  "nameLocation": "20430:14:6",
+                  "nameLocation": "20460:14:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2359,
-                  "src": "20423:21:6",
+                  "scope": 2370,
+                  "src": "20453:21:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -79865,10 +80204,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 2219,
+                    "id": 2221,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "20423:6:6",
+                    "src": "20453:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -79878,13 +80217,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2222,
+                  "id": 2224,
                   "mutability": "mutable",
                   "name": "paramsHash",
-                  "nameLocation": "20454:10:6",
+                  "nameLocation": "20484:10:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2359,
-                  "src": "20446:18:6",
+                  "scope": 2370,
+                  "src": "20476:18:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -79892,10 +80231,10 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 2221,
+                    "id": 2223,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "20446:7:6",
+                    "src": "20476:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
@@ -79905,13 +80244,13 @@
                 },
                 {
                   "constant": false,
-                  "id": 2224,
+                  "id": 2226,
                   "mutability": "mutable",
                   "name": "eotp",
-                  "nameLocation": "20474:4:6",
+                  "nameLocation": "20504:4:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2359,
-                  "src": "20466:12:6",
+                  "scope": 2370,
+                  "src": "20496:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -79919,33 +80258,67 @@
                     "typeString": "bytes32"
                   },
                   "typeName": {
-                    "id": 2223,
+                    "id": 2225,
                     "name": "bytes32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "20466:7:6",
+                    "src": "20496:7:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes32",
                       "typeString": "bytes32"
                     }
                   },
                   "visibility": "internal"
+                },
+                {
+                  "constant": false,
+                  "id": 2229,
+                  "mutability": "mutable",
+                  "name": "operationType",
+                  "nameLocation": "20524:13:6",
+                  "nodeType": "VariableDeclaration",
+                  "scope": 2370,
+                  "src": "20510:27:6",
+                  "stateVariable": false,
+                  "storageLocation": "default",
+                  "typeDescriptions": {
+                    "typeIdentifier": "t_enum$_OperationType_$493",
+                    "typeString": "enum ONEWallet.OperationType"
+                  },
+                  "typeName": {
+                    "id": 2228,
+                    "nodeType": "UserDefinedTypeName",
+                    "pathNode": {
+                      "id": 2227,
+                      "name": "OperationType",
+                      "nodeType": "IdentifierPath",
+                      "referencedDeclaration": 493,
+                      "src": "20510:13:6"
+                    },
+                    "referencedDeclaration": 493,
+                    "src": "20510:13:6",
+                    "typeDescriptions": {
+                      "typeIdentifier": "t_enum$_OperationType_$493",
+                      "typeString": "enum ONEWallet.OperationType"
+                    }
+                  },
+                  "visibility": "internal"
                 }
               ],
-              "src": "20408:71:6"
+              "src": "20438:100:6"
             },
             "returnParameters": {
-              "id": 2228,
+              "id": 2233,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2227,
+                  "id": 2232,
                   "mutability": "mutable",
                   "name": "",
                   "nameLocation": "-1:-1:-1",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2359,
-                  "src": "20503:6:6",
+                  "scope": 2370,
+                  "src": "20562:6:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -79953,10 +80326,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 2226,
+                    "id": 2231,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "20503:6:6",
+                    "src": "20562:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -79965,34 +80338,34 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "20502:8:6"
+              "src": "20561:8:6"
             },
-            "scope": 2592,
-            "src": "20386:1628:6",
+            "scope": 2612,
+            "src": "20416:1745:6",
             "stateMutability": "view",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 2431,
+              "id": 2451,
               "nodeType": "Block",
-              "src": "22094:464:6",
+              "src": "22270:511:6",
               "statements": [
                 {
                   "assignments": [
-                    2370
+                    2384
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2370,
+                      "id": 2384,
                       "mutability": "mutable",
                       "name": "cc",
-                      "nameLocation": "22121:2:6",
+                      "nameLocation": "22297:2:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2431,
-                      "src": "22104:19:6",
+                      "scope": 2451,
+                      "src": "22280:19:6",
                       "stateVariable": false,
                       "storageLocation": "storage",
                       "typeDescriptions": {
@@ -80001,25 +80374,25 @@
                       },
                       "typeName": {
                         "baseType": {
-                          "id": 2368,
+                          "id": 2382,
                           "nodeType": "UserDefinedTypeName",
                           "pathNode": {
-                            "id": 2367,
+                            "id": 2381,
                             "name": "Commit",
                             "nodeType": "IdentifierPath",
                             "referencedDeclaration": 504,
-                            "src": "22104:6:6"
+                            "src": "22280:6:6"
                           },
                           "referencedDeclaration": 504,
-                          "src": "22104:6:6",
+                          "src": "22280:6:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_struct$_Commit_$504_storage_ptr",
                             "typeString": "struct ONEWallet.Commit"
                           }
                         },
-                        "id": 2369,
+                        "id": 2383,
                         "nodeType": "ArrayTypeName",
-                        "src": "22104:8:6",
+                        "src": "22280:8:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                           "typeString": "struct ONEWallet.Commit[]"
@@ -80028,28 +80401,28 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2374,
+                  "id": 2388,
                   "initialValue": {
                     "baseExpression": {
-                      "id": 2371,
+                      "id": 2385,
                       "name": "commitLocker",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 513,
-                      "src": "22126:12:6",
+                      "src": "22302:12:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_mapping$_t_bytes32_$_t_array$_t_struct$_Commit_$504_storage_$dyn_storage_$",
                         "typeString": "mapping(bytes32 => struct ONEWallet.Commit storage ref[] storage ref)"
                       }
                     },
-                    "id": 2373,
+                    "id": 2387,
                     "indexExpression": {
-                      "id": 2372,
+                      "id": 2386,
                       "name": "commitHash",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2361,
-                      "src": "22139:10:6",
+                      "referencedDeclaration": 2372,
+                      "src": "22315:10:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bytes32",
                         "typeString": "bytes32"
@@ -80060,14 +80433,14 @@
                     "isPure": false,
                     "lValueRequested": false,
                     "nodeType": "IndexAccess",
-                    "src": "22126:24:6",
+                    "src": "22302:24:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage",
                       "typeString": "struct ONEWallet.Commit storage ref[] storage ref"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "22104:46:6"
+                  "src": "22280:46:6"
                 },
                 {
                   "expression": {
@@ -80077,32 +80450,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 2379,
+                        "id": 2393,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 2376,
+                            "id": 2390,
                             "name": "cc",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2370,
-                            "src": "22168:2:6",
+                            "referencedDeclaration": 2384,
+                            "src": "22344:2:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                             }
                           },
-                          "id": 2377,
+                          "id": 2391,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "22168:9:6",
+                          "src": "22344:9:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -80112,21 +80485,21 @@
                         "operator": ">",
                         "rightExpression": {
                           "hexValue": "30",
-                          "id": 2378,
+                          "id": 2392,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
                           "kind": "number",
                           "lValueRequested": false,
                           "nodeType": "Literal",
-                          "src": "22180:1:6",
+                          "src": "22356:1:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_rational_0_by_1",
                             "typeString": "int_const 0"
                           },
                           "value": "0"
                         },
-                        "src": "22168:13:6",
+                        "src": "22344:13:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -80134,14 +80507,14 @@
                       },
                       {
                         "hexValue": "496e76616c696420636f6d6d69742068617368",
-                        "id": 2380,
+                        "id": 2394,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "22183:21:6",
+                        "src": "22359:21:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_8a9c0db4284cd81d8eaef3d877f21bcccab643ae503f9d63f7eb3ad5aacbe749",
                           "typeString": "literal_string \"Invalid commit hash\""
@@ -80160,7 +80533,7 @@
                           "typeString": "literal_string \"Invalid commit hash\""
                         }
                       ],
-                      "id": 2375,
+                      "id": 2389,
                       "name": "require",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
@@ -80168,13 +80541,13 @@
                         4294967278
                       ],
                       "referencedDeclaration": 4294967278,
-                      "src": "22160:7:6",
+                      "src": "22336:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (bool,string memory) pure"
                       }
                     },
-                    "id": 2381,
+                    "id": 2395,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -80182,16 +80555,16 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "22160:45:6",
+                    "src": "22336:45:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2382,
+                  "id": 2396,
                   "nodeType": "ExpressionStatement",
-                  "src": "22160:45:6"
+                  "src": "22336:45:6"
                 },
                 {
                   "expression": {
@@ -80201,32 +80574,32 @@
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
                         },
-                        "id": 2387,
+                        "id": 2401,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftExpression": {
                           "expression": {
-                            "id": 2384,
+                            "id": 2398,
                             "name": "cc",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2370,
-                            "src": "22223:2:6",
+                            "referencedDeclaration": 2384,
+                            "src": "22399:2:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_array$_t_struct$_Commit_$504_storage_$dyn_storage_ptr",
                               "typeString": "struct ONEWallet.Commit storage ref[] storage pointer"
                             }
                           },
-                          "id": 2385,
+                          "id": 2399,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "memberName": "length",
                           "nodeType": "MemberAccess",
-                          "src": "22223:9:6",
+                          "src": "22399:9:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -80235,18 +80608,18 @@
                         "nodeType": "BinaryOperation",
                         "operator": ">",
                         "rightExpression": {
-                          "id": 2386,
+                          "id": 2400,
                           "name": "commitIndex",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 2363,
-                          "src": "22235:11:6",
+                          "referencedDeclaration": 2374,
+                          "src": "22411:11:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "src": "22223:23:6",
+                        "src": "22399:23:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -80254,14 +80627,14 @@
                       },
                       {
                         "hexValue": "496e76616c696420636f6d6d6974496e646578",
-                        "id": 2388,
+                        "id": 2402,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "kind": "string",
                         "lValueRequested": false,
                         "nodeType": "Literal",
-                        "src": "22248:21:6",
+                        "src": "22424:21:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_stringliteral_dd8f27f99c8575d947c48310b46d36796c8df82285fc83fecd33510610055413",
                           "typeString": "literal_string \"Invalid commitIndex\""
@@ -80280,7 +80653,7 @@
                           "typeString": "literal_string \"Invalid commitIndex\""
                         }
                       ],
-                      "id": 2383,
+                      "id": 2397,
                       "name": "require",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
@@ -80288,13 +80661,13 @@
                         4294967278
                       ],
                       "referencedDeclaration": 4294967278,
-                      "src": "22215:7:6",
+                      "src": "22391:7:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                         "typeString": "function (bool,string memory) pure"
                       }
                     },
-                    "id": 2389,
+                    "id": 2403,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -80302,31 +80675,31 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "22215:55:6",
+                    "src": "22391:55:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 2390,
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                           "typeString": "struct ONEWallet.Commit storage pointer"
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@@ -80866,10 +81308,10 @@
                     "typeString": "bytes32"
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@@ -80946,10 +81422,10 @@
                         "typeString": "uint32"
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@@ -80958,13 +81434,13 @@
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@@ -81005,26 +81481,26 @@
                             "typeString": "uint256"
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@@ -81083,10 +81559,10 @@
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@@ -81095,24 +81571,24 @@
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@@ -81162,10 +81638,10 @@
                         "typeString": "uint32"
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@@ -81174,17 +81650,17 @@
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@@ -81192,7 +81668,7 @@
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@@ -81200,18 +81676,18 @@
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@@ -81220,45 +81696,45 @@
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@@ -81271,18 +81747,18 @@
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@@ -81291,50 +81767,50 @@
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@@ -81343,18 +81819,18 @@
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@@ -81363,30 +81839,30 @@
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@@ -81400,38 +81876,38 @@
                           "typeString": "uint256"
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                         "typeString": "function (uint256) pure returns (uint32[] memory)"
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@@ -81439,7 +81915,7 @@
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                     "nodeType": "FunctionCall",
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@@ -81447,22 +81923,22 @@
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@@ -81470,10 +81946,10 @@
                         "typeString": "uint32"
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@@ -81482,17 +81958,17 @@
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@@ -81500,28 +81976,28 @@
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@@ -81529,10 +82005,10 @@
                               "typeString": "uint32"
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@@ -81541,28 +82017,28 @@
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@@ -81573,14 +82049,14 @@
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@@ -81588,18 +82064,18 @@
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                             "typeString": "uint32"
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@@ -81608,56 +82084,56 @@
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@@ -81668,7 +82144,7 @@
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@@ -81677,35 +82153,35 @@
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                                     "typeString": "uint32"
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@@ -81713,14 +82189,14 @@
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@@ -81731,25 +82207,25 @@
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@@ -81757,28 +82233,28 @@
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@@ -81789,7 +82265,7 @@
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                                   "nodeType": "IndexAccess",
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@@ -81800,9 +82276,9 @@
                                   "typeString": "tuple()"
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@@ -81814,18 +82290,18 @@
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                       "typeString": "uint256"
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@@ -81835,51 +82311,51 @@
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                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
                         "referencedDeclaration": 466,
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                         "typeString": "uint256"
                       }
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@@ -81887,10 +82363,10 @@
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@@ -81899,17 +82375,17 @@
                         "visibility": "internal"
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@@ -81917,11 +82393,11 @@
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@@ -81929,14 +82405,14 @@
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@@ -81947,27 +82423,27 @@
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@@ -81976,18 +82452,18 @@
                       },
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                             "typeString": "uint32"
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@@ -81996,16 +82472,16 @@
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@@ -82019,38 +82495,38 @@
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                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "id": 2529,
+                        "id": 2549,
                         "nodeType": "ArrayTypeName",
-                        "src": "23811:8:6",
+                        "src": "24034:8:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_array$_t_uint32_$dyn_storage_ptr",
                           "typeString": "uint32[]"
                         }
                       }
                     },
-                    "id": 2532,
+                    "id": 2552,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -82058,7 +82534,7 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "23807:29:6",
+                    "src": "24030:29:6",
                     "tryCall": false,
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
@@ -82066,42 +82542,42 @@
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "23776:60:6"
+                  "src": "23999:60:6"
                 },
                 {
                   "body": {
-                    "id": 2552,
+                    "id": 2572,
                     "nodeType": "Block",
-                    "src": "23890:59:6",
+                    "src": "24113:59:6",
                     "statements": [
                       {
                         "expression": {
-                          "id": 2550,
+                          "id": 2570,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftHandSide": {
                             "baseExpression": {
-                              "id": 2544,
+                              "id": 2564,
                               "name": "reducedArray",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2527,
-                              "src": "23904:12:6",
+                              "referencedDeclaration": 2547,
+                              "src": "24127:12:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
                                 "typeString": "uint32[] memory"
                               }
                             },
-                            "id": 2546,
+                            "id": 2566,
                             "indexExpression": {
-                              "id": 2545,
+                              "id": 2565,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2535,
-                              "src": "23917:1:6",
+                              "referencedDeclaration": 2555,
+                              "src": "24140:1:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint8",
                                 "typeString": "uint8"
@@ -82112,7 +82588,7 @@
                             "isPure": false,
                             "lValueRequested": true,
                             "nodeType": "IndexAccess",
-                            "src": "23904:15:6",
+                            "src": "24127:15:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -82122,25 +82598,25 @@
                           "operator": "=",
                           "rightHandSide": {
                             "baseExpression": {
-                              "id": 2547,
+                              "id": 2567,
                               "name": "nonZeroNonces",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2471,
-                              "src": "23922:13:6",
+                              "referencedDeclaration": 2491,
+                              "src": "24145:13:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
                                 "typeString": "uint32[] memory"
                               }
                             },
-                            "id": 2549,
+                            "id": 2569,
                             "indexExpression": {
-                              "id": 2548,
+                              "id": 2568,
                               "name": "i",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2535,
-                              "src": "23936:1:6",
+                              "referencedDeclaration": 2555,
+                              "src": "24159:1:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint8",
                                 "typeString": "uint8"
@@ -82151,21 +82627,21 @@
                             "isPure": false,
                             "lValueRequested": false,
                             "nodeType": "IndexAccess",
-                            "src": "23922:16:6",
+                            "src": "24145:16:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
                             }
                           },
-                          "src": "23904:34:6",
+                          "src": "24127:34:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint32",
                             "typeString": "uint32"
                           }
                         },
-                        "id": 2551,
+                        "id": 2571,
                         "nodeType": "ExpressionStatement",
-                        "src": "23904:34:6"
+                        "src": "24127:34:6"
                       }
                     ]
                   },
@@ -82174,18 +82650,18 @@
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
                     },
-                    "id": 2540,
+                    "id": 2560,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 2538,
+                      "id": 2558,
                       "name": "i",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2535,
-                      "src": "23864:1:6",
+                      "referencedDeclaration": 2555,
+                      "src": "24087:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint8",
                         "typeString": "uint8"
@@ -82194,38 +82670,38 @@
                     "nodeType": "BinaryOperation",
                     "operator": "<",
                     "rightExpression": {
-                      "id": 2539,
+                      "id": 2559,
                       "name": "numValidIndices",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2480,
-                      "src": "23868:15:6",
+                      "referencedDeclaration": 2500,
+                      "src": "24091:15:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
                       }
                     },
-                    "src": "23864:19:6",
+                    "src": "24087:19:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2553,
+                  "id": 2573,
                   "initializationExpression": {
                     "assignments": [
-                      2535
+                      2555
                     ],
                     "declarations": [
                       {
                         "constant": false,
-                        "id": 2535,
+                        "id": 2555,
                         "mutability": "mutable",
                         "name": "i",
-                        "nameLocation": "23857:1:6",
+                        "nameLocation": "24080:1:6",
                         "nodeType": "VariableDeclaration",
-                        "scope": 2553,
-                        "src": "23851:7:6",
+                        "scope": 2573,
+                        "src": "24074:7:6",
                         "stateVariable": false,
                         "storageLocation": "default",
                         "typeDescriptions": {
@@ -82233,10 +82709,10 @@
                           "typeString": "uint8"
                         },
                         "typeName": {
-                          "id": 2534,
+                          "id": 2554,
                           "name": "uint8",
                           "nodeType": "ElementaryTypeName",
-                          "src": "23851:5:6",
+                          "src": "24074:5:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
@@ -82245,17 +82721,17 @@
                         "visibility": "internal"
                       }
                     ],
-                    "id": 2537,
+                    "id": 2557,
                     "initialValue": {
                       "hexValue": "30",
-                      "id": 2536,
+                      "id": 2556,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "23861:1:6",
+                      "src": "24084:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
@@ -82263,11 +82739,11 @@
                       "value": "0"
                     },
                     "nodeType": "VariableDeclarationStatement",
-                    "src": "23851:11:6"
+                    "src": "24074:11:6"
                   },
                   "loopExpression": {
                     "expression": {
-                      "id": 2542,
+                      "id": 2562,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -82275,14 +82751,14 @@
                       "nodeType": "UnaryOperation",
                       "operator": "++",
                       "prefix": false,
-                      "src": "23885:3:6",
+                      "src": "24108:3:6",
                       "subExpression": {
-                        "id": 2541,
+                        "id": 2561,
                         "name": "i",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2535,
-                        "src": "23885:1:6",
+                        "referencedDeclaration": 2555,
+                        "src": "24108:1:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint8",
                           "typeString": "uint8"
@@ -82293,27 +82769,27 @@
                         "typeString": "uint8"
                       }
                     },
-                    "id": 2543,
+                    "id": 2563,
                     "nodeType": "ExpressionStatement",
-                    "src": "23885:3:6"
+                    "src": "24108:3:6"
                   },
                   "nodeType": "ForStatement",
-                  "src": "23846:103:6"
+                  "src": "24069:103:6"
                 },
                 {
                   "expression": {
-                    "id": 2556,
+                    "id": 2576,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftHandSide": {
-                      "id": 2554,
+                      "id": 2574,
                       "name": "nonceTracker",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 466,
-                      "src": "23958:12:6",
+                      "src": "24181:12:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_array$_t_uint32_$dyn_storage",
                         "typeString": "uint32[] storage ref"
@@ -82322,80 +82798,80 @@
                     "nodeType": "Assignment",
                     "operator": "=",
                     "rightHandSide": {
-                      "id": 2555,
+                      "id": 2575,
                       "name": "reducedArray",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2527,
-                      "src": "23973:12:6",
+                      "referencedDeclaration": 2547,
+                      "src": "24196:12:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_array$_t_uint32_$dyn_memory_ptr",
                         "typeString": "uint32[] memory"
                       }
                     },
-                    "src": "23958:27:6",
+                    "src": "24181:27:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_array$_t_uint32_$dyn_storage",
                       "typeString": "uint32[] storage ref"
                     }
                   },
-                  "id": 2557,
+                  "id": 2577,
                   "nodeType": "ExpressionStatement",
-                  "src": "23958:27:6"
+                  "src": "24181:27:6"
                 }
               ]
             },
             "documentation": {
-              "id": 2433,
+              "id": 2453,
               "nodeType": "StructuredDocumentation",
-              "src": "22564:249:6",
+              "src": "22787:249:6",
               "text": "This function removes all tracked nonce values correspond to interval blocks that are older than block.timestamp - REVEAL_MAX_DELAY. In doing so, extraneous data in the blockchain is removed, and both nonces and nonceTracker are bounded in size."
             },
-            "id": 2559,
+            "id": 2579,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_cleanupNonces",
-            "nameLocation": "22827:14:6",
+            "nameLocation": "23050:14:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2434,
+              "id": 2454,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "22841:2:6"
+              "src": "23064:2:6"
             },
             "returnParameters": {
-              "id": 2435,
+              "id": 2455,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "22853:0:6"
+              "src": "23076:0:6"
             },
-            "scope": 2592,
-            "src": "22818:1174:6",
+            "scope": 2612,
+            "src": "23041:1174:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           },
           {
             "body": {
-              "id": 2590,
+              "id": 2610,
               "nodeType": "Block",
-              "src": "24046:162:6",
+              "src": "24269:162:6",
               "statements": [
                 {
                   "assignments": [
-                    2565
+                    2585
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 2565,
+                      "id": 2585,
                       "mutability": "mutable",
                       "name": "v",
-                      "nameLocation": "24062:1:6",
+                      "nameLocation": "24285:1:6",
                       "nodeType": "VariableDeclaration",
-                      "scope": 2590,
-                      "src": "24056:7:6",
+                      "scope": 2610,
+                      "src": "24279:7:6",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -82403,10 +82879,10 @@
                         "typeString": "uint8"
                       },
                       "typeName": {
-                        "id": 2564,
+                        "id": 2584,
                         "name": "uint8",
                         "nodeType": "ElementaryTypeName",
-                        "src": "24056:5:6",
+                        "src": "24279:5:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint8",
                           "typeString": "uint8"
@@ -82415,28 +82891,28 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 2569,
+                  "id": 2589,
                   "initialValue": {
                     "baseExpression": {
-                      "id": 2566,
+                      "id": 2586,
                       "name": "nonces",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
                       "referencedDeclaration": 463,
-                      "src": "24066:6:6",
+                      "src": "24289:6:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_mapping$_t_uint32_$_t_uint8_$",
                         "typeString": "mapping(uint32 => uint8)"
                       }
                     },
-                    "id": 2568,
+                    "id": 2588,
                     "indexExpression": {
-                      "id": 2567,
+                      "id": 2587,
                       "name": "index",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2561,
-                      "src": "24073:5:6",
+                      "referencedDeclaration": 2581,
+                      "src": "24296:5:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint32",
                         "typeString": "uint32"
@@ -82447,14 +82923,14 @@
                     "isPure": false,
                     "lValueRequested": false,
                     "nodeType": "IndexAccess",
-                    "src": "24066:13:6",
+                    "src": "24289:13:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint8",
                       "typeString": "uint8"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "24056:23:6"
+                  "src": "24279:23:6"
                 },
                 {
                   "condition": {
@@ -82462,18 +82938,18 @@
                       "typeIdentifier": "t_uint8",
                       "typeString": "uint8"
                     },
-                    "id": 2572,
+                    "id": 2592,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
-                      "id": 2570,
+                      "id": 2590,
                       "name": "v",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 2565,
-                      "src": "24093:1:6",
+                      "referencedDeclaration": 2585,
+                      "src": "24316:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint8",
                         "typeString": "uint8"
@@ -82483,44 +82959,44 @@
                     "operator": "==",
                     "rightExpression": {
                       "hexValue": "30",
-                      "id": 2571,
+                      "id": 2591,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": true,
                       "kind": "number",
                       "lValueRequested": false,
                       "nodeType": "Literal",
-                      "src": "24098:1:6",
+                      "src": "24321:1:6",
                       "typeDescriptions": {
                         "typeIdentifier": "t_rational_0_by_1",
                         "typeString": "int_const 0"
                       },
                       "value": "0"
                     },
-                    "src": "24093:6:6",
+                    "src": "24316:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
-                  "id": 2580,
+                  "id": 2600,
                   "nodeType": "IfStatement",
-                  "src": "24089:61:6",
+                  "src": "24312:61:6",
                   "trueBody": {
-                    "id": 2579,
+                    "id": 2599,
                     "nodeType": "Block",
-                    "src": "24101:49:6",
+                    "src": "24324:49:6",
                     "statements": [
                       {
                         "expression": {
                           "arguments": [
                             {
-                              "id": 2576,
+                              "id": 2596,
                               "name": "index",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 2561,
-                              "src": "24133:5:6",
+                              "referencedDeclaration": 2581,
+                              "src": "24356:5:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint32",
                                 "typeString": "uint32"
@@ -82535,31 +83011,31 @@
                               }
                             ],
                             "expression": {
-                              "id": 2573,
+                              "id": 2593,
                               "name": "nonceTracker",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
                               "referencedDeclaration": 466,
-                              "src": "24115:12:6",
+                              "src": "24338:12:6",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_array$_t_uint32_$dyn_storage",
                                 "typeString": "uint32[] storage ref"
                               }
                             },
-                            "id": 2575,
+                            "id": 2595,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
                             "lValueRequested": false,
                             "memberName": "push",
                             "nodeType": "MemberAccess",
-                            "src": "24115:17:6",
+                            "src": "24338:17:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_arraypush_nonpayable$_t_array$_t_uint32_$dyn_storage_ptr_$_t_uint32_$returns$__$bound_to$_t_array$_t_uint32_$dyn_storage_ptr_$",
                               "typeString": "function (uint32[] storage pointer,uint32)"
                             }
                           },
-                          "id": 2577,
+                          "id": 2597,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -82567,53 +83043,53 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "24115:24:6",
+                          "src": "24338:24:6",
                           "tryCall": false,
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 2578,
+                        "id": 2598,
                         "nodeType": "ExpressionStatement",
-                        "src": "24115:24:6"
+                        "src": "24338:24:6"
                       }
                     ]
                   }
                 },
                 {
-                  "id": 2589,
+                  "id": 2609,
                   "nodeType": "UncheckedBlock",
-                  "src": "24155:47:6",
+                  "src": "24378:47:6",
                   "statements": [
                     {
                       "expression": {
-                        "id": 2587,
+                        "id": 2607,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
                         "lValueRequested": false,
                         "leftHandSide": {
                           "baseExpression": {
-                            "id": 2581,
+                            "id": 2601,
                             "name": "nonces",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
                             "referencedDeclaration": 463,
-                            "src": "24174:6:6",
+                            "src": "24397:6:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_mapping$_t_uint32_$_t_uint8_$",
                               "typeString": "mapping(uint32 => uint8)"
                             }
                           },
-                          "id": 2583,
+                          "id": 2603,
                           "indexExpression": {
-                            "id": 2582,
+                            "id": 2602,
                             "name": "index",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2561,
-                            "src": "24181:5:6",
+                            "referencedDeclaration": 2581,
+                            "src": "24404:5:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint32",
                               "typeString": "uint32"
@@ -82624,7 +83100,7 @@
                           "isPure": false,
                           "lValueRequested": true,
                           "nodeType": "IndexAccess",
-                          "src": "24174:13:6",
+                          "src": "24397:13:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
@@ -82637,18 +83113,18 @@
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
                           },
-                          "id": 2586,
+                          "id": 2606,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
-                            "id": 2584,
+                            "id": 2604,
                             "name": "v",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 2565,
-                            "src": "24190:1:6",
+                            "referencedDeclaration": 2585,
+                            "src": "24413:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint8",
                               "typeString": "uint8"
@@ -82658,60 +83134,60 @@
                           "operator": "+",
                           "rightExpression": {
                             "hexValue": "31",
-                            "id": 2585,
+                            "id": 2605,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "24194:1:6",
+                            "src": "24417:1:6",
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_1_by_1",
                               "typeString": "int_const 1"
                             },
                             "value": "1"
                           },
-                          "src": "24190:5:6",
+                          "src": "24413:5:6",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint8",
                             "typeString": "uint8"
                           }
                         },
-                        "src": "24174:21:6",
+                        "src": "24397:21:6",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint8",
                           "typeString": "uint8"
                         }
                       },
-                      "id": 2588,
+                      "id": 2608,
                       "nodeType": "ExpressionStatement",
-                      "src": "24174:21:6"
+                      "src": "24397:21:6"
                     }
                   ]
                 }
               ]
             },
-            "id": 2591,
+            "id": 2611,
             "implemented": true,
             "kind": "function",
             "modifiers": [],
             "name": "_incrementNonce",
-            "nameLocation": "24007:15:6",
+            "nameLocation": "24230:15:6",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 2562,
+              "id": 2582,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 2561,
+                  "id": 2581,
                   "mutability": "mutable",
                   "name": "index",
-                  "nameLocation": "24030:5:6",
+                  "nameLocation": "24253:5:6",
                   "nodeType": "VariableDeclaration",
-                  "scope": 2591,
-                  "src": "24023:12:6",
+                  "scope": 2611,
+                  "src": "24246:12:6",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -82719,10 +83195,10 @@
                     "typeString": "uint32"
                   },
                   "typeName": {
-                    "id": 2560,
+                    "id": 2580,
                     "name": "uint32",
                     "nodeType": "ElementaryTypeName",
-                    "src": "24023:6:6",
+                    "src": "24246:6:6",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint32",
                       "typeString": "uint32"
@@ -82731,27 +83207,27 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "24022:14:6"
+              "src": "24245:14:6"
             },
             "returnParameters": {
-              "id": 2563,
+              "id": 2583,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "24046:0:6"
+              "src": "24269:0:6"
             },
-            "scope": 2592,
-            "src": "23998:210:6",
+            "scope": 2612,
+            "src": "24221:210:6",
             "stateMutability": "nonpayable",
             "virtual": false,
             "visibility": "internal"
           }
         ],
-        "scope": 2593,
-        "src": "151:24059:6",
+        "scope": 2613,
+        "src": "151:24282:6",
         "usedErrors": []
       }
     ],
-    "src": "39:24172:6"
+    "src": "39:24395:6"
   },
   "compiler": {
     "name": "solc",
@@ -82759,7 +83235,7 @@
   },
   "networks": {},
   "schemaVersion": "3.4.2",
-  "updatedAt": "2021-08-05T09:45:29.841Z",
+  "updatedAt": "2021-08-05T10:36:55.344Z",
   "devdoc": {
     "kind": "dev",
     "methods": {

From dcce7a23d2a02a7717dcd8a097045b25bc824d21 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 03:39:36 -0700
Subject: [PATCH 36/59] fix bug with computeRecoveryHash

---
 code/lib/onewallet.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/lib/onewallet.js b/code/lib/onewallet.js
index 7409a836..2d8042bb 100644
--- a/code/lib/onewallet.js
+++ b/code/lib/onewallet.js
@@ -183,7 +183,7 @@ const computeEOTP = async ({ otp, otp2, rand = null, hseed, nonce = 0, hasher =
 }
 
 const computeRecoveryHash = (rseed, input) => {
-  rseed = rseed || new Uint8Array(new BigUint64Array([0, Date.now()]).buffer)
+  rseed = rseed || new Uint8Array(new BigUint64Array([0n, BigInt(Date.now())]).buffer)
   input = input || new Uint8Array(32)
   // eslint-disable-next-line new-cap
   const aes = new AES.ModeOfOperation.ctr(rseed)

From 8fc1c243ded0fcfd3f30fa34853f93f033e9944e Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 03:39:50 -0700
Subject: [PATCH 37/59] new recovery flow

---
 code/lib/api/flow.js | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/code/lib/api/flow.js b/code/lib/api/flow.js
index f1c7fa41..4a21caf1 100644
--- a/code/lib/api/flow.js
+++ b/code/lib/api/flow.js
@@ -14,11 +14,10 @@ const EotpBuilders = {
     return ONE.computeEOTP({ otp: encodedOtp, otp2: encodedOtp2, rand, nonce, hseed: ONEUtil.hexToBytes(hseed) })
   },
   recovery: async ({ wallet, layers }) => {
+    // eslint-disable-next-line no-unused-vars
     const { hseed, effectiveTime } = wallet
-    const index = ONEUtil.timeToIndex({ effectiveTime })
-    const leaf = layers[0].subarray(index * 32, index * 32 + 32).slice()
-    const { eotp } = ONE.bruteforceEOTP({ hseed: ONEUtil.hexToBytes(hseed), leaf })
-    return eotp
+    const leaf = layers[0].subarray(layers[0].length - 32, layers[0].length)
+    return leaf
   }
 }
 

From dfcc39b498d255add9e3bd8edf3cb64dacbffa24 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 03:40:03 -0700
Subject: [PATCH 38/59] new recovery test; all tests passing

---
 code/test/wallet.js | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/code/test/wallet.js b/code/test/wallet.js
index 2c9bd20a..b4e50f41 100644
--- a/code/test/wallet.js
+++ b/code/test/wallet.js
@@ -4,6 +4,7 @@ const ONEUtil = require('../lib/util')
 const ONEDebugger = require('../lib/debug')
 const ONE = require('../lib/onewallet')
 const ONEConstants = require('../lib/constants')
+const Flow = require('../lib/api/flow')
 
 const INTERVAL = 30000
 const DURATION = INTERVAL * 8
@@ -22,7 +23,7 @@ contract('ONEWallet', (accounts) => {
   const ONE_ETH = unit.toWei('1', 'ether')
   // eslint-disable-next-line no-unused-vars
   const TWO_ETH = unit.toWei('2', 'ether')
-  it('must create wallet with expected parameters', async () => {
+  it('Wallet_Create: must create wallet with expected parameters', async () => {
     const purse = web3.eth.accounts.create()
     const {
       seed,
@@ -71,7 +72,7 @@ contract('ONEWallet', (accounts) => {
     assert.equal(ONE_CENT, balance, 'Wallet has correct balance')
   })
 
-  it('must commit and reveal a transfer successfully', async () => {
+  it('Wallet_CommitReveal: must commit and reveal a transfer successfully', async () => {
     const purse = web3.eth.accounts.create()
     const { seed, hseed, wallet, root, client: { layers } } = await TestUtil.createWallet({
       effectiveTime: EFFECTIVE_TIME,
@@ -144,7 +145,7 @@ contract('ONEWallet', (accounts) => {
     assert.equal(ONE_CENT / 2, purseBalance, 'Purse has correct balance')
   })
 
-  it('must respect daily limit', async () => {
+  it('Wallet_DailyLimit: must respect daily limit', async () => {
     const purse = web3.eth.accounts.create()
     const { seed, hseed, wallet, client: { layers } } = await TestUtil.createWallet({
       effectiveTime: EFFECTIVE_TIME,
@@ -180,9 +181,9 @@ contract('ONEWallet', (accounts) => {
     assert.equal(0, purseBalance, 'Purse has 0 balance')
   })
 
-  it('must recover funds to last resort address', async () => {
+  it('Wallet_Recover: must recover funds to recovery address without using otp', async () => {
     const purse = web3.eth.accounts.create()
-    const { seed, hseed, wallet, client: { layers } } = await TestUtil.createWallet({
+    const { hseed, wallet, client: { layers } } = await TestUtil.createWallet({
       effectiveTime: EFFECTIVE_TIME,
       duration: DURATION,
       maxOperationsPerInterval: SLOT_SIZE,
@@ -194,20 +195,21 @@ contract('ONEWallet', (accounts) => {
       to: wallet.address,
       value: ONE_DIME
     })
-    const otp = ONEUtil.genOTP({ seed })
-    const index = ONEUtil.timeToIndex({ effectiveTime: EFFECTIVE_TIME })
-    const eotp = await ONE.computeEOTP({ otp, hseed })
+    const index = 2 ** (layers.length - 1) - 1
+    const eotp = await Flow.EotpBuilders.recovery({ wallet, layers })
     const neighbors = ONE.selectMerkleNeighbors({ layers, index })
     const neighbor = neighbors[0]
     const { hash: commitHash } = ONE.computeCommitHash({ neighbor, index, eotp })
-    const { hash: recoveryHash } = ONE.computeRecoveryHash()
+    const { hash: recoveryHash, bytes: recoveryData } = ONE.computeRecoveryHash(null, hseed)
     const { hash: verificationHash } = ONE.computeVerificationHash({ paramsHash: recoveryHash, eotp })
     const neighborsEncoded = neighbors.map(ONEUtil.hexString)
     await wallet.commit(ONEUtil.hexString(commitHash), ONEUtil.hexString(recoveryHash), ONEUtil.hexString(verificationHash))
-    await wallet.reveal(
+    const tx = await wallet.reveal(
       neighborsEncoded, index, ONEUtil.hexString(eotp),
-      ONEConstants.OperationType.RECOVER, ONEConstants.TokenType.NONE, ONEConstants.EmptyAddress, 0, ONEConstants.EmptyAddress, HALF_DIME, '0x'
+      ONEConstants.OperationType.RECOVER, ONEConstants.TokenType.NONE, ONEConstants.EmptyAddress, 0, ONEConstants.EmptyAddress, HALF_DIME, ONEUtil.hexString(recoveryData)
     )
+    Logger.debug('tx', tx)
+    assert.ok(tx.tx, 'Transaction must succeed')
     const walletBalance = await web3.eth.getBalance(wallet.address)
     const purseBalance = await web3.eth.getBalance(purse.address)
     assert.equal(0, walletBalance, 'Wallet has 0 balance')

From 57ef96b526947e373132936d7766b2d30367c41c Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 04:09:33 -0700
Subject: [PATCH 39/59] minor

---
 code/test/client.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/code/test/client.js b/code/test/client.js
index 048ce0ab..abdf272b 100644
--- a/code/test/client.js
+++ b/code/test/client.js
@@ -203,6 +203,7 @@ contract('ONEWallet', (accounts) => {
 
   const transferTest = async ({ hasher = ONEUtil.sha256b }) => {
     const effectiveTime = Math.floor(Date.now() / INTERVAL) * INTERVAL - DURATION / 2
+    const randomness = 16
     const purse = web3.eth.accounts.create()
 
     const {
@@ -227,7 +228,7 @@ contract('ONEWallet', (accounts) => {
       maxOperationsPerInterval: SLOT_SIZE,
       lastResortAddress: ONEConstants.EmptyAddress,
       dailyLimit: ONE_ETH,
-      randomness: 16,
+      randomness,
       hasher,
       doubleOtp: true,
     })
@@ -254,7 +255,7 @@ contract('ONEWallet', (accounts) => {
     const index = ONEUtil.timeToIndex({ effectiveTime })
     const leaf = leaves.subarray(index * 32, index * 32 + 32)
     Logger.debug(`otp=${ONEUtil.decodeOtp(otp)} otp2=${ONEUtil.decodeOtp(otp2)} index=${index}. Recovering rand...`)
-    const rand = await ONE.recoverRandomness({ hseed, otp, otp2, randomness: 16, hasher, leaf })
+    const rand = await ONE.recoverRandomness({ hseed, otp, otp2, randomness, hasher, leaf })
     Logger.debug(`rand=${rand} recovered`)
     assert.ok(rand !== null, 'Recover randomness must succeed')
     const neighbors = ONE.selectMerkleNeighbors({ layers, index })

From f4346b8e7f3ba09f3c8d9e53c458abced8f9149e Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 04:17:49 -0700
Subject: [PATCH 40/59] clean up

---
 code/lib/onewallet.js | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/code/lib/onewallet.js b/code/lib/onewallet.js
index 2d8042bb..47bef590 100644
--- a/code/lib/onewallet.js
+++ b/code/lib/onewallet.js
@@ -169,14 +169,10 @@ const computeEOTP = async ({ otp, otp2, rand = null, hseed, nonce = 0, hasher =
   if (otp2) {
     buffer.set(otp2, hseed.length + 6)
   }
-  console.log('otp', otp, hexView(otp))
-  console.log('otp2', otp2, hexView(otp2))
-  console.log('buffer', buffer, hexView(buffer))
   if (rand !== null) {
     const rb = new Uint8Array(4)
     const rv = new DataView(rb.buffer)
     rv.setUint32(0, rand, false)
-    console.log('rb', rb)
     buffer.set(rb, 28)
   }
   return hasher(buffer)

From ace8dd773e18bdb6f4f50ff189e7a00851d5aeb7 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 04:17:53 -0700
Subject: [PATCH 41/59] ditto

---
 code/client/src/pages/Show.jsx | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/code/client/src/pages/Show.jsx b/code/client/src/pages/Show.jsx
index 8e160aa6..8e03c6de 100644
--- a/code/client/src/pages/Show.jsx
+++ b/code/client/src/pages/Show.jsx
@@ -168,18 +168,12 @@ const Show = () => {
 
   const prepareValidation = ({ checkAmount = true, checkDest = true, checkOtp = true } = {}) => {
     let rawAmount
-
     const otp = util.parseOtp(otpInput)
-
     const otp2 = util.parseOtp(otp2Input)
-
     const invalidOtp = !otp
-
     const invalidOtp2 = wallet.doubleOtp && !otp2
-
     // Ensure valid address for both 0x and one1 formats
     const dest = util.safeExec(util.normalizedAddress, [transferTo], handleAddressError)
-
     if (checkDest && !dest) {
       return
     }

From ca1f770931d32d243301eec19f77f71a3f6941e7 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 04:20:00 -0700
Subject: [PATCH 42/59] ONE Wallet -> 1wallet

---
 code/client/src/pages/Create.jsx  | 14 +++++++-------
 code/client/src/pages/Restore.jsx |  4 ++--
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/code/client/src/pages/Create.jsx b/code/client/src/pages/Create.jsx
index 294b4277..1cfcb949 100644
--- a/code/client/src/pages/Create.jsx
+++ b/code/client/src/pages/Create.jsx
@@ -246,7 +246,7 @@ const Create = () => {
           </Space>
         </Row>
         <Space direction='vertical'>
-          <Hint>Next, we will set up a ONE Wallet that expires in a year. When the wallet expires, you may create a new wallet and transfer the funds. The funds can also be recovered to an address you set later.</Hint>
+          <Hint>Next, we will set up a 1wallet that expires in a year. When the wallet expires, you may create a new wallet and transfer the funds. The funds can also be recovered to an address you set later.</Hint>
           <Link onClick={() => setDurationVisible(true)}>Need more time?</Link>
           {durationVisible &&
             <Space>
@@ -263,7 +263,7 @@ const Create = () => {
         <Row>
           <Space direction='vertical'>
             {/* <Heading>Now, scan the QR code with your Google Authenticator</Heading> */}
-            <Heading>Create Your ONE Wallet</Heading>
+            <Heading>Create Your 1wallet</Heading>
             <Hint>You need the 6-digit code from Google authenticator to transfer funds. You can restore your wallet using Google authenticator on any device.</Hint>
             <Row justify='center'>
               {qrCodeData && <Image src={qrCodeData} preview={false} width={isMobile ? 192 : 256} />}
@@ -295,8 +295,8 @@ const Create = () => {
       <AnimatedSection show={section === sectionViews.setupSecondOtp} style={{ maxWidth: 640 }}>
         <Row>
           <Space direction='vertical'>
-            <Heading>Create Your ONE Wallet</Heading>
-            <Hint align='center'>Scan using your Google Authenticator to setup the <b>second</b> code</Hint>
+            <Heading>Create Your 1wallet (Enhanced Security)</Heading>
+            <Hint align='center'>Scan with your Google Authenticator to setup the <b>second</b> code</Hint>
             <Row justify='center'>
               {secondOtpQrCodeData && <Image src={secondOtpQrCodeData} preview={false} width={isMobile ? 192 : 256} />}
             </Row>
@@ -317,7 +317,7 @@ const Create = () => {
       <AnimatedSection show={section === sectionViews.prepareWallet} style={{ maxWidth: 640 }}>
         <Row>
           <Space direction='vertical'>
-            <Heading>Prepare Your ONE Wallet</Heading>
+            <Heading>Prepare Your 1wallet</Heading>
           </Space>
         </Row>
         {/* <Row style={{ marginBottom: 16 }}> */}
@@ -370,7 +370,7 @@ const Create = () => {
                     percent={progress}
                   />
                   <Space direction='vertical'>
-                    <Timeline pending={progressStage < 2 && 'Securing your keyless ONE Wallet'}>
+                    <Timeline pending={progressStage < 2 && 'Securing your keyless 1wallet'}>
                       <Timeline.Item color={progressStage < 1 ? 'grey' : 'green'}>Securing the wallet</Timeline.Item>
                       <Timeline.Item color={progressStage < 2 ? 'grey' : 'green'}>Preparing signatures</Timeline.Item>
                     </Timeline>
@@ -382,7 +382,7 @@ const Create = () => {
         <Row>
           <Space direction='vertical'>
             <Hint>No private key. No mnemonic. Simple and Secure. </Hint>
-            <Hint>To learn more, visit <Link href='https://github.com/polymorpher/one-wallet/wiki'>ONE Wallet Wiki</Link></Hint>
+            <Hint>To learn more, visit <Link href='https://github.com/polymorpher/one-wallet/wiki'>1wallet Wiki</Link></Hint>
             <Hint>In Beta, your wallet is subject to a daily spending limit of {WalletConstants.defaultDailyLimit} ONE</Hint>
           </Space>
         </Row>
diff --git a/code/client/src/pages/Restore.jsx b/code/client/src/pages/Restore.jsx
index 05b37b21..f90e2ea1 100644
--- a/code/client/src/pages/Restore.jsx
+++ b/code/client/src/pages/Restore.jsx
@@ -64,7 +64,7 @@ const Restore = () => {
         const params = MigrationPayload.decode(Buffer.from(data, 'base64')).otpParameters
         const filteredParams = params.filter(e => e.issuer === 'ONE Wallet' || e.issuer === 'Harmony')
         if (filteredParams.length > 1) {
-          message.error('You selected more than 1 ONE Wallet code to export. Please reselect on Google Authenticator')
+          message.error('You selected more than one authenticator entry to export. Please reselect on Google Authenticator')
           return
         }
         const { secret, name } = filteredParams[0]
@@ -249,7 +249,7 @@ const Restore = () => {
                   percent={progress}
                 />
                 <Space direction='vertical'>
-                  <Timeline pending={progressStage < 2 && 'Rebuilding your ONE Wallet'}>
+                  <Timeline pending={progressStage < 2 && 'Rebuilding your 1wallet'}>
                     <Timeline.Item color={progressStage < 1 ? 'grey' : 'green'}>Recomputing proofs for each time interval</Timeline.Item>
                     <Timeline.Item color={progressStage < 2 ? 'grey' : 'green'}>Preparing hashes for verification</Timeline.Item>
                   </Timeline>

From dc6405794e05d129e47bfb3705ba06c5b195e84c Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 04:25:23 -0700
Subject: [PATCH 43/59] otp entry name change

---
 code/client/src/pages/Create.jsx | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/code/client/src/pages/Create.jsx b/code/client/src/pages/Create.jsx
index 1cfcb949..431b7651 100644
--- a/code/client/src/pages/Create.jsx
+++ b/code/client/src/pages/Create.jsx
@@ -109,7 +109,7 @@ const Create = () => {
   useEffect(() => {
     (async function () {
       const otpUri = getQRCodeUri(seed, name)
-      const secondOtpUri = getQRCodeUri(seed2, `${name} (2nd)`)
+      const secondOtpUri = getQRCodeUri(seed2, `${name} - 2nd`)
       const otpQrCodeData = await qrcode.toDataURL(otpUri, { errorCorrectionLevel: 'low', width: isMobile ? 192 : 256 })
       const secondOtpQrCodeData = await qrcode.toDataURL(secondOtpUri, { errorCorrectionLevel: 'low', width: isMobile ? 192 : 256 })
       setQRCodeData(otpQrCodeData)
@@ -272,7 +272,7 @@ const Create = () => {
         </Row>
         <Row>
           <Space direction='vertical' size='large' align='center'>
-            <Hint>After you are done, type in the 6-digit code from Google authenticator.</Hint>
+            <Hint>After you are done, type in the 6-digit code from Google authenticator.<br />Look for <b>Harmony ({name})</b></Hint>
             <OtpBox
               shouldAutoFocus
               ref={otpRef}
@@ -295,7 +295,7 @@ const Create = () => {
       <AnimatedSection show={section === sectionViews.setupSecondOtp} style={{ maxWidth: 640 }}>
         <Row>
           <Space direction='vertical'>
-            <Heading>Create Your 1wallet (Enhanced Security)</Heading>
+            <Heading>Create Your 1wallet (second code)</Heading>
             <Hint align='center'>Scan with your Google Authenticator to setup the <b>second</b> code</Hint>
             <Row justify='center'>
               {secondOtpQrCodeData && <Image src={secondOtpQrCodeData} preview={false} width={isMobile ? 192 : 256} />}
@@ -304,7 +304,7 @@ const Create = () => {
         </Row>
         <Row>
           <Space direction='vertical' size='large' align='center'>
-            <Hint>Type in the <b>second</b> 6-digit code from Google authenticator.</Hint>
+            <Hint>Type in the <b>second</b> 6-digit code from Google authenticator.<br />Look for <b>Harmony ({name} - 2nd)</b></Hint>
             <OtpBox
               shouldAutoFocus
               ref={otpRef}

From b6ebe9bb23b3a192939446ebcd8923551b8f6c5e Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 04:27:22 -0700
Subject: [PATCH 44/59] text update

---
 code/client/src/pages/Create.jsx | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/code/client/src/pages/Create.jsx b/code/client/src/pages/Create.jsx
index 431b7651..4f549ec0 100644
--- a/code/client/src/pages/Create.jsx
+++ b/code/client/src/pages/Create.jsx
@@ -272,7 +272,8 @@ const Create = () => {
         </Row>
         <Row>
           <Space direction='vertical' size='large' align='center'>
-            <Hint>After you are done, type in the 6-digit code from Google authenticator.<br />Look for <b>Harmony ({name})</b></Hint>
+            <Hint>After you are done, type in the 6-digit code from Google authenticator</Hint>
+            <Hint>Code for <b>Harmony ({name})</b></Hint>
             <OtpBox
               shouldAutoFocus
               ref={otpRef}
@@ -304,7 +305,8 @@ const Create = () => {
         </Row>
         <Row>
           <Space direction='vertical' size='large' align='center'>
-            <Hint>Type in the <b>second</b> 6-digit code from Google authenticator.<br />Look for <b>Harmony ({name} - 2nd)</b></Hint>
+            <Hint>Type in the <b>second</b> 6-digit code from Google authenticator</Hint>
+            <Hint>Code for <b>Harmony ({name} - 2nd)</b></Hint>
             <OtpBox
               shouldAutoFocus
               ref={otpRef}

From 26a0b54d66fd1ef5f50c469a35a96b035e5df7e2 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 04:32:09 -0700
Subject: [PATCH 45/59] better syntax for computeRecoveryHash

---
 code/lib/onewallet.js | 10 +++++-----
 code/test/wallet.js   |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/code/lib/onewallet.js b/code/lib/onewallet.js
index 47bef590..d864e1d0 100644
--- a/code/lib/onewallet.js
+++ b/code/lib/onewallet.js
@@ -178,12 +178,12 @@ const computeEOTP = async ({ otp, otp2, rand = null, hseed, nonce = 0, hasher =
   return hasher(buffer)
 }
 
-const computeRecoveryHash = (rseed, input) => {
-  rseed = rseed || new Uint8Array(new BigUint64Array([0n, BigInt(Date.now())]).buffer)
-  input = input || new Uint8Array(32)
+const computeRecoveryHash = ({ randomSeed, hseed }) => {
+  randomSeed = randomSeed || new Uint8Array(new BigUint64Array([0n, BigInt(Date.now())]).buffer)
+  hseed = hseed || new Uint8Array(32)
   // eslint-disable-next-line new-cap
-  const aes = new AES.ModeOfOperation.ctr(rseed)
-  const bytes = aes.encrypt(input)
+  const aes = new AES.ModeOfOperation.ctr(randomSeed)
+  const bytes = aes.encrypt(hseed)
   return { hash: keccak(bytes), bytes }
 }
 
diff --git a/code/test/wallet.js b/code/test/wallet.js
index b4e50f41..dad1d551 100644
--- a/code/test/wallet.js
+++ b/code/test/wallet.js
@@ -200,7 +200,7 @@ contract('ONEWallet', (accounts) => {
     const neighbors = ONE.selectMerkleNeighbors({ layers, index })
     const neighbor = neighbors[0]
     const { hash: commitHash } = ONE.computeCommitHash({ neighbor, index, eotp })
-    const { hash: recoveryHash, bytes: recoveryData } = ONE.computeRecoveryHash(null, hseed)
+    const { hash: recoveryHash, bytes: recoveryData } = ONE.computeRecoveryHash({ hseed })
     const { hash: verificationHash } = ONE.computeVerificationHash({ paramsHash: recoveryHash, eotp })
     const neighborsEncoded = neighbors.map(ONEUtil.hexString)
     await wallet.commit(ONEUtil.hexString(commitHash), ONEUtil.hexString(recoveryHash), ONEUtil.hexString(verificationHash))

From e213814ebbf5902f7090d1286bc5bcbf59fe41b2 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 05:05:04 -0700
Subject: [PATCH 46/59] v8 contract

---
 code/build/contracts/ONEWallet.json | 44 ++++++++++++++---------------
 code/contracts/ONEWallet.sol        |  4 +--
 2 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/code/build/contracts/ONEWallet.json b/code/build/contracts/ONEWallet.json
index b883c284..3efb18b1 100644
--- a/code/build/contracts/ONEWallet.json
+++ b/code/build/contracts/ONEWallet.json
@@ -904,9 +904,9 @@
       "type": "function"
     }
   ],
-  "metadata": "{\"compiler\":{\"version\":\"0.8.4+commit.c7e474f2\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"root_\",\"type\":\"bytes32\"},{\"internalType\":\"uint8\",\"name\":\"height_\",\"type\":\"uint8\"},{\"internalType\":\"uint8\",\"name\":\"interval_\",\"type\":\"uint8\"},{\"internalType\":\"uint32\",\"name\":\"t0_\",\"type\":\"uint32\"},{\"internalType\":\"uint32\",\"name\":\"lifespan_\",\"type\":\"uint32\"},{\"internalType\":\"uint8\",\"name\":\"maxOperationsPerInterval_\",\"type\":\"uint8\"},{\"internalType\":\"address payable\",\"name\":\"lastResortAddress_\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"dailyLimit_\",\"type\":\"uint256\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"}],\"name\":\"AutoRecoveryTriggered\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"limit\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"current\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"}],\"name\":\"ExceedDailyLimit\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"balance\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"}],\"name\":\"InsufficientFund\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[],\"name\":\"LastResortAddressNotSet\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"}],\"name\":\"PaymentReceived\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"}],\"name\":\"PaymentSent\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"tokenContract\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"ReceivedToken\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[],\"name\":\"RecoveryFailure\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenNotFound\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenTracked\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"string\",\"name\":\"reason\",\"type\":\"string\"}],\"name\":\"TokenTransferError\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferFailed\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferSucceeded\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenUntracked\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"}],\"name\":\"UnknownTransferError\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"hash\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"paramsHash\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"verificationHash\",\"type\":\"bytes32\"}],\"name\":\"commit\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"findCommit\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"},{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"},{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"pure\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getAllCommits\",\"outputs\":[{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"uint32[]\",\"name\":\"\",\"type\":\"uint32[]\"},{\"internalType\":\"bool[]\",\"name\":\"\",\"type\":\"bool[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getCommits\",\"outputs\":[{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"uint32[]\",\"name\":\"\",\"type\":\"uint32[]\"},{\"internalType\":\"bool[]\",\"name\":\"\",\"type\":\"bool[]\"}],\"stateMutability\":\"pure\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getCurrentSpending\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getInfo\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"},{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"},{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"},{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"},{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"},{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getNonce\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getTrackedTokens\",\"outputs\":[{\"internalType\":\"enum TokenTracker.TokenType[]\",\"name\":\"\",\"type\":\"uint8[]\"},{\"internalType\":\"address[]\",\"name\":\"\",\"type\":\"address[]\"},{\"internalType\":\"uint256[]\",\"name\":\"\",\"type\":\"uint256[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getVersion\",\"outputs\":[{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"},{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"}],\"stateMutability\":\"pure\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"hash\",\"type\":\"bytes32\"}],\"name\":\"lookupCommit\",\"outputs\":[{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"bytes32[]\",\"name\":\"\",\"type\":\"bytes32[]\"},{\"internalType\":\"uint32[]\",\"name\":\"\",\"type\":\"uint32[]\"},{\"internalType\":\"bool[]\",\"name\":\"\",\"type\":\"bool[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"uint256[]\",\"name\":\"ids\",\"type\":\"uint256[]\"},{\"internalType\":\"uint256[]\",\"name\":\"values\",\"type\":\"uint256[]\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"onERC1155BatchReceived\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"id\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"onERC1155Received\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"onERC721Received\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"retire\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32[]\",\"name\":\"neighbors\",\"type\":\"bytes32[]\"},{\"internalType\":\"uint32\",\"name\":\"indexWithNonce\",\"type\":\"uint32\"},{\"internalType\":\"bytes32\",\"name\":\"eotp\",\"type\":\"bytes32\"},{\"internalType\":\"enum ONEWallet.OperationType\",\"name\":\"operationType\",\"type\":\"uint8\"},{\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"address payable\",\"name\":\"dest\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"reveal\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes4\",\"name\":\"interfaceID\",\"type\":\"bytes4\"}],\"name\":\"supportsInterface\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"pure\",\"type\":\"function\"},{\"stateMutability\":\"payable\",\"type\":\"receive\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\":{\"details\":\"Handles the receipt of a multiple ERC1155 token types. This function is called at the end of a `safeBatchTransferFrom` after the balances have been updated. To accept the transfer(s), this must return `bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` (i.e. 0xbc197c81, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"ids\":\"An array containing ids of each token being transferred (order and length must match values array)\",\"operator\":\"The address which initiated the batch transfer (i.e. msg.sender)\",\"values\":\"An array containing amounts of each token being transferred (order and length must match ids array)\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` if transfer is allowed\"}},\"onERC1155Received(address,address,uint256,uint256,bytes)\":{\"details\":\"Handles the receipt of a single ERC1155 token type. This function is called at the end of a `safeTransferFrom` after the balance has been updated. To accept the transfer, this must return `bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` (i.e. 0xf23a6e61, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"id\":\"The ID of the token being transferred\",\"operator\":\"The address which initiated the transfer (i.e. msg.sender)\",\"value\":\"The amount of tokens being transferred\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` if transfer is allowed\"}},\"onERC721Received(address,address,uint256,bytes)\":{\"details\":\"Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} by `operator` from `from`, this function is called. It must return its Solidity selector to confirm the token transfer. If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"project:/contracts/ONEWallet.sol\":\"ONEWallet\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/token/ERC1155/IERC1155.sol\":{\"keccak256\":\"0xfce1eb6398eae0e2b50251140866a70a3106193f101972c878bba1dbf44929ec\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://4f0709c3f462b28b400f57db181254ad970967c3b49a8948ef5e05929b106ffe\",\"dweb:/ipfs/QmNe3sRmPKw1T7q7m733tk7tFKpi3jo9PCisDPMbjeg3kJ\"]},\"@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol\":{\"keccak256\":\"0x7de6e64d4a8075e803a972cc77c4c91463e0c3777e4110eacfb5d4a71759b2fa\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://b83b3b09ef36374c1c104ee896797dadf2e81466d2143b481d3f1ddc7d9f3873\",\"dweb:/ipfs/QmSWtqs28RHDezRWBbmEfqiPYwsGTKj44NRbuxvZ96cqMU\"]},\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"keccak256\":\"0x027b891937d20ccf213fdb9c31531574256de774bda99d3a70ecef6e1913ed2a\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://087318b21c528119f649899f5b5580566dd8d7b0303d4904bd0e8580c3545f14\",\"dweb:/ipfs/Qmbn5Mj7aUn8hJuQ8VrQjjEXRsXyJKykgnjR9p4C3nfLtL\"]},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0xf101e8720213560fab41104d53b3cc7ba0456ef3a98455aa7f022391783144a0\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://3e7820bcf567e6892d937c3cb10db263a4042e446799bca602535868d822384e\",\"dweb:/ipfs/QmPG2oeDjKncqsEeyYGjAN7CwAJmMgHterXGGnpzhha4z7\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\":{\"keccak256\":\"0xd9517254724276e2e8de3769183c1f738f445f0095c26fd9b86d3c6687e887b9\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://0e604bcdcd5e5b2fb299ad09769cde6db19d5aa1929d1b5e939234a0f10d7eb8\",\"dweb:/ipfs/Qmd8hXE3GZfBHuWx3RNiYgFW2ci7KvHtib8DiwzJ2dgo9V\"]},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"keccak256\":\"0xa28007762d9da9db878dd421960c8cb9a10471f47ab5c1b3309bfe48e9e79ff4\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://796ab6e88af7bf0e78def0f059310c903af6a312b565344e0ff524a0f26e81c6\",\"dweb:/ipfs/QmcsVgLgzWdor3UnAztUkXKNGcysm1MPneWksF72AvnwBx\"]},\"project:/contracts/ONEWallet.sol\":{\"keccak256\":\"0x2053288cb89b882fb5fb435952055eac827f8cacb27ab76ae693cf92ceac6161\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://4ed8af3d81cf96976394b0589764e14a814f2fa78092c0bd720aee2c71265ee2\",\"dweb:/ipfs/QmcpGvbaZZAoMpp5ziUUQmyQaXFA6RabL7zChbfQHR2am8\"]},\"project:/contracts/TokenTracker.sol\":{\"keccak256\":\"0x153e8bd4263b7b071e5c4e9e44f5da2afb16c74207e8a6a071c837721de1747b\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://5550ad4a2929a9216432939182544a355ccfa1fdc04566497d4215d08171d115\",\"dweb:/ipfs/QmRkCR7qmJP6oLqFs7FbAZNgQUV9PNRLweP4Kkv3L81AW7\"]}},\"version\":1}",
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TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"tokenContract\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"ReceivedToken\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[],\"name\":\"RecoveryFailure\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenNotFound\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"TokenTracked\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum 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TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferFailed\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum TokenTracker.TokenType\",\"name\":\"tokenType\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"dest\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TokenTransferSucceeded\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"enum 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This function is called at the end of a `safeBatchTransferFrom` after the balances have been updated. To accept the transfer(s), this must return `bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` (i.e. 0xbc197c81, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"ids\":\"An array containing ids of each token being transferred (order and length must match values array)\",\"operator\":\"The address which initiated the batch transfer (i.e. msg.sender)\",\"values\":\"An array containing amounts of each token being transferred (order and length must match ids array)\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\\\"))` if transfer is allowed\"}},\"onERC1155Received(address,address,uint256,uint256,bytes)\":{\"details\":\"Handles the receipt of a single ERC1155 token type. This function is called at the end of a `safeTransferFrom` after the balance has been updated. To accept the transfer, this must return `bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` (i.e. 0xf23a6e61, or its own function selector).\",\"params\":{\"data\":\"Additional data with no specified format\",\"from\":\"The address which previously owned the token\",\"id\":\"The ID of the token being transferred\",\"operator\":\"The address which initiated the transfer (i.e. msg.sender)\",\"value\":\"The amount of tokens being transferred\"},\"returns\":{\"_0\":\"`bytes4(keccak256(\\\"onERC1155Received(address,address,uint256,uint256,bytes)\\\"))` if transfer is allowed\"}},\"onERC721Received(address,address,uint256,bytes)\":{\"details\":\"Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} by `operator` from `from`, this function is called. It must return its Solidity selector to confirm the token transfer. If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"project:/contracts/ONEWallet.sol\":\"ONEWallet\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/token/ERC1155/IERC1155.sol\":{\"keccak256\":\"0xfce1eb6398eae0e2b50251140866a70a3106193f101972c878bba1dbf44929ec\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://4f0709c3f462b28b400f57db181254ad970967c3b49a8948ef5e05929b106ffe\",\"dweb:/ipfs/QmNe3sRmPKw1T7q7m733tk7tFKpi3jo9PCisDPMbjeg3kJ\"]},\"@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol\":{\"keccak256\":\"0x7de6e64d4a8075e803a972cc77c4c91463e0c3777e4110eacfb5d4a71759b2fa\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://b83b3b09ef36374c1c104ee896797dadf2e81466d2143b481d3f1ddc7d9f3873\",\"dweb:/ipfs/QmSWtqs28RHDezRWBbmEfqiPYwsGTKj44NRbuxvZ96cqMU\"]},\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"keccak256\":\"0x027b891937d20ccf213fdb9c31531574256de774bda99d3a70ecef6e1913ed2a\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://087318b21c528119f649899f5b5580566dd8d7b0303d4904bd0e8580c3545f14\",\"dweb:/ipfs/Qmbn5Mj7aUn8hJuQ8VrQjjEXRsXyJKykgnjR9p4C3nfLtL\"]},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0xf101e8720213560fab41104d53b3cc7ba0456ef3a98455aa7f022391783144a0\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://3e7820bcf567e6892d937c3cb10db263a4042e446799bca602535868d822384e\",\"dweb:/ipfs/QmPG2oeDjKncqsEeyYGjAN7CwAJmMgHterXGGnpzhha4z7\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\":{\"keccak256\":\"0xd9517254724276e2e8de3769183c1f738f445f0095c26fd9b86d3c6687e887b9\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://0e604bcdcd5e5b2fb299ad09769cde6db19d5aa1929d1b5e939234a0f10d7eb8\",\"dweb:/ipfs/Qmd8hXE3GZfBHuWx3RNiYgFW2ci7KvHtib8DiwzJ2dgo9V\"]},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"keccak256\":\"0xa28007762d9da9db878dd421960c8cb9a10471f47ab5c1b3309bfe48e9e79ff4\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://796ab6e88af7bf0e78def0f059310c903af6a312b565344e0ff524a0f26e81c6\",\"dweb:/ipfs/QmcsVgLgzWdor3UnAztUkXKNGcysm1MPneWksF72AvnwBx\"]},\"project:/contracts/ONEWallet.sol\":{\"keccak256\":\"0x6250dc3ba020eda38911ae234c25cc7e7d151d56da5554f6340e2a7c87021112\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://e67ea7518cb9aaade20713f029eb41a8039ddae667c3f257b1cf72a1ebed9cd6\",\"dweb:/ipfs/QmZVAn6p9xtfQ9hrchN7AmFFNw84C3C6HK5NyoLNFfaqvd\"]},\"project:/contracts/TokenTracker.sol\":{\"keccak256\":\"0x153e8bd4263b7b071e5c4e9e44f5da2afb16c74207e8a6a071c837721de1747b\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://5550ad4a2929a9216432939182544a355ccfa1fdc04566497d4215d08171d115\",\"dweb:/ipfs/QmRkCR7qmJP6oLqFs7FbAZNgQUV9PNRLweP4Kkv3L81AW7\"]}},\"version\":1}",
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@@ -27964,8 +27964,8 @@
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-  "source": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.4;\n\nimport \"./TokenTracker.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\ncontract ONEWallet is TokenTracker {\n    event InsufficientFund(uint256 amount, uint256 balance, address dest);\n    event ExceedDailyLimit(uint256 amount, uint256 limit, uint256 current, address dest);\n    event UnknownTransferError(address dest);\n    event LastResortAddressNotSet();\n    event PaymentReceived(uint256 amount, address from);\n    event PaymentSent(uint256 amount, address dest);\n    event AutoRecoveryTriggered(address from);\n    event RecoveryFailure();\n\n    /// In future versions, it is planned that we may allow the user to extend the wallet's life through a function call. When that is implemented, the following variables may no longer be immutable, with the exception of root which shall serve as an identifier of the wallet\n    bytes32 immutable root; // Note: @ivan brought up a good point in reducing this to 16-bytes so hash of two consecutive nodes can be done in a single word (to save gas and reduce blockchain clutter). Let's not worry about that for now and re-evalaute this later.\n    uint8 immutable height; // including the root. e.g. for a tree with 4 leaves, the height is 3.\n    uint8 immutable interval; // otp interval in seconds, default is 30\n    uint32 immutable t0; // starting time block (effectiveTime (in ms) / interval)\n    uint32 immutable lifespan;  // in number of block (e.g. 1 block per [interval] seconds)\n    uint8 immutable maxOperationsPerInterval; // number of transactions permitted per OTP interval. Each transaction shall have a unique nonce. The nonce is auto-incremented within each interval\n    uint32 immutable _numLeaves; // 2 ** (height - 1)\n\n    /// global mutable variables\n    address payable lastResortAddress; // where money will be sent during a recovery process (or when the wallet is beyond its lifespan)\n    uint256 dailyLimit; // uint128 is sufficient, but uint256 is more efficient since EVM works with 32-byte words.\n    uint256 spentToday; // note: instead of tracking the money spent for the last 24h, we are simply tracking money spent per 24h block based on UTC time. It is good enough for now, but we may want to change this later.\n    uint32 lastTransferDay;\n\n    /// nonce tracking\n    mapping(uint32 => uint8) nonces; // keys: otp index (=timestamp in seconds / interval - t0); values: the expected nonce for that otp interval. An reveal with a nonce less than the expected value will be rejected\n    uint32[] nonceTracker; // list of nonces keys that have a non-zero value. keys cannot possibly result a successful reveal (indices beyond REVEAL_MAX_DELAY old) are auto-deleted during a clean up procedure that is called every time the nonces are incremented for some key. For each deleted key, the corresponding key in nonces will also be deleted. So the size of nonceTracker and nonces are both bounded.\n\n    // constants\n    uint32 constant REVEAL_MAX_DELAY = 60;\n    uint32 constant SECONDS_PER_DAY = 86400;\n    uint256 constant AUTO_RECOVERY_TRIGGER_AMOUNT = 1 ether;\n    uint32 constant MAX_COMMIT_SIZE = 120;\n\n    uint32 constant majorVersion = 0x7; // a change would require client to migrate\n    uint32 constant minorVersion = 0x3; // a change would not require the client to migrate\n\n    enum OperationType {\n        TRACK, UNTRACK, TRANSFER_TOKEN, OVERRIDE_TRACK, TRANSFER, SET_RECOVERY_ADDRESS, RECOVER,\n        REPLACE // reserved, not implemented yet. This is for replacing the root and set up new parameters (t0, lifespan)\n    }\n    /// commit management\n    struct Commit {\n        bytes32 hash;\n        bytes32 paramsHash;\n        bytes32 verificationHash;\n        uint32 timestamp;\n        bool completed;\n    }\n\n    bytes32[] commits; // self-clean on commit (auto delete commits that are beyond REVEAL_MAX_DELAY), so it's bounded by the number of commits an attacker can spam within REVEAL_MAX_DELAY time in the worst case, which is not too bad.\n    mapping(bytes32 => Commit[]) commitLocker;\n\n\n    constructor(bytes32 root_, uint8 height_, uint8 interval_, uint32 t0_, uint32 lifespan_, uint8 maxOperationsPerInterval_,\n        address payable lastResortAddress_, uint256 dailyLimit_)\n    {\n        root = root_;\n        height = height_;\n        interval = interval_;\n        t0 = t0_;\n        lifespan = lifespan_;\n        lastResortAddress = lastResortAddress_;\n        dailyLimit = dailyLimit_;\n        maxOperationsPerInterval = maxOperationsPerInterval_;\n        _numLeaves = uint32(2 ** (height_ - 1));\n    }\n\n    receive() external payable {\n        emit PaymentReceived(msg.value, msg.sender);\n        if (msg.value != AUTO_RECOVERY_TRIGGER_AMOUNT) {\n            return;\n        }\n        if (msg.sender != lastResortAddress) {\n            return;\n        }\n        if (lastResortAddress == address(0)) {\n            return;\n        }\n        if (msg.sender == address(this)) {\n            return;\n        }\n        emit AutoRecoveryTriggered(msg.sender);\n        require(_drain());\n    }\n\n\n    function retire() external returns (bool)\n    {\n        require(uint32(block.timestamp / interval) - t0 > lifespan, \"Too early to retire\");\n        require(lastResortAddress != address(0), \"Last resort address is not set\");\n        require(_drain(), \"Recovery failed\");\n        return true;\n    }\n\n    function getInfo() external view returns (bytes32, uint8, uint8, uint32, uint32, uint8, address, uint256)\n    {\n        return (root, height, interval, t0, lifespan, maxOperationsPerInterval, lastResortAddress, dailyLimit);\n    }\n\n    function getVersion() external pure returns (uint32, uint32)\n    {\n        return (majorVersion, minorVersion);\n    }\n\n    function getCurrentSpending() external view returns (uint256, uint256)\n    {\n        return (spentToday, lastTransferDay);\n    }\n\n    function getNonce() external view returns (uint8)\n    {\n        uint32 index = uint32(block.timestamp) / interval - t0;\n        return nonces[index];\n    }\n\n    function getCommits() external pure returns (bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory){\n        revert(\"Deprecated\");\n    }\n\n    function getAllCommits() external view returns (bytes32[] memory, bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory)\n    {\n        uint32 numCommits = 0;\n        for (uint32 i = 0; i < commits.length; i++) {\n            Commit[] storage cc = commitLocker[commits[i]];\n            numCommits += uint32(cc.length);\n        }\n        bytes32[] memory hashes = new bytes32[](numCommits);\n        bytes32[] memory paramHashes = new bytes32[](numCommits);\n        bytes32[] memory verificationHashes = new bytes32[](numCommits);\n        uint32[] memory timestamps = new uint32[](numCommits);\n        bool[] memory completed = new bool[](numCommits);\n        uint32 index = 0;\n        for (uint32 i = 0; i < commits.length; i++) {\n            Commit[] storage cc = commitLocker[commits[i]];\n            for (uint32 j = 0; j < cc.length; j++) {\n                Commit storage c = cc[j];\n                hashes[index] = c.hash;\n                paramHashes[index] = c.paramsHash;\n                verificationHashes[index] = c.verificationHash;\n                timestamps[index] = c.timestamp;\n                completed[index] = c.completed;\n                index++;\n            }\n        }\n        return (hashes, paramHashes, verificationHashes, timestamps, completed);\n    }\n\n    function findCommit(bytes32 /*hash*/) external pure returns (bytes32, bytes32, uint32, bool){\n        revert(\"Deprecated\");\n    }\n\n    function lookupCommit(bytes32 hash) external view returns (bytes32[] memory, bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory){\n        Commit[] storage cc = commitLocker[hash];\n        bytes32[] memory hashes = new bytes32[](cc.length);\n        bytes32[] memory paramHashes = new bytes32[](cc.length);\n        bytes32[] memory verificationHashes = new bytes32[](cc.length);\n        uint32[] memory timestamps = new uint32[](cc.length);\n        bool[] memory completed = new bool[](cc.length);\n        for (uint32 i = 0; i < cc.length; i++) {\n            Commit storage c = cc[i];\n            hashes[i] = c.hash;\n            paramHashes[i] = c.paramsHash;\n            verificationHashes[i] = c.verificationHash;\n            timestamps[i] = c.timestamp;\n            completed[i] = c.completed;\n        }\n        return (hashes, paramHashes, verificationHashes, timestamps, completed);\n    }\n\n    function commit(bytes32 hash, bytes32 paramsHash, bytes32 verificationHash) external {\n        _cleanupCommits();\n        Commit memory nc = Commit(hash, paramsHash, verificationHash, uint32(block.timestamp), false);\n        require(commits.length < MAX_COMMIT_SIZE, \"Too many commits\");\n        commits.push(hash);\n        commitLocker[hash].push(nc);\n    }\n\n    /// This function sends all remaining funds of the wallet to `lastResortAddress`. The caller should verify that `lastResortAddress` is not null.\n    /// TODO: also transfer all tracked ERC20, 721, 1155 tokens to `lastResortAddress`\n    function _drain() internal returns (bool) {\n        // this may be triggered after revealing the proof, and we must prevent revert in all cases\n        (bool success,) = lastResortAddress.call{value : address(this).balance}(\"\");\n        return success;\n    }\n\n    function _transfer(address payable dest, uint256 amount) internal returns (bool) {\n        uint32 day = uint32(block.timestamp / SECONDS_PER_DAY);\n        if (day > lastTransferDay) {\n            spentToday = 0;\n            lastTransferDay = day;\n        }\n        if (spentToday + amount > dailyLimit) {\n            emit ExceedDailyLimit(amount, dailyLimit, spentToday, dest);\n            return false;\n        }\n        if (address(this).balance < amount) {\n            emit InsufficientFund(amount, address(this).balance, dest);\n            return false;\n        }\n        spentToday += amount;\n        (bool success,) = dest.call{value : amount}(\"\");\n        // we do not want to revert the whole transaction if this operation fails, since EOTP is already revealed\n        if (!success) {\n            spentToday -= amount;\n            emit UnknownTransferError(dest);\n            return false;\n        }\n\n        emit PaymentSent(amount, dest);\n        return true;\n    }\n\n    function _recover() internal returns (bool){\n        if (lastResortAddress == address(0)) {\n            emit LastResortAddressNotSet();\n            return false;\n        }\n        if (!_drain()) {\n            emit RecoveryFailure();\n            return false;\n        }\n        return true;\n    }\n\n    function _setRecoveryAddress(address payable lastResortAddress_) internal {\n        require(lastResortAddress == address(0), \"Last resort address is already set\");\n        lastResortAddress = lastResortAddress_;\n    }\n\n    function _transferToken(TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount, bytes memory data) internal {\n        if (tokenType == TokenType.ERC20) {\n            try IERC20(contractAddress).transfer(dest, amount) returns (bool success){\n                if (success) {\n                    _trackToken(tokenType, contractAddress, tokenId);\n                    emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n                    return;\n                }\n                emit TokenTransferFailed(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        } else if (tokenType == TokenType.ERC721) {\n            try IERC721(contractAddress).safeTransferFrom(address(this), dest, tokenId, data){\n                emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        } else if (tokenType == TokenType.ERC1155) {\n            try IERC1155(contractAddress).safeTransferFrom(address(this), dest, tokenId, amount, data) {\n                emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        }\n    }\n\n    /// Provides commitHash, paramsHash, and verificationHash given the parameters\n    function _getRevealHash(bytes32 neighbor, uint32 indexWithNonce, bytes32 eotp,\n        OperationType operationType, TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount, bytes calldata data) pure internal returns (bytes32, bytes32) {\n        bytes32 hash = keccak256(bytes.concat(neighbor, bytes32(bytes4(indexWithNonce)), eotp));\n        bytes32 paramsHash = bytes32(0);\n        if (operationType == OperationType.TRANSFER) {\n            paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest))), bytes32(amount)));\n        } else if (operationType == OperationType.RECOVER) {\n            paramsHash = keccak256(data);\n        } else if (operationType == OperationType.SET_RECOVERY_ADDRESS) {\n            paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest)))));\n        } else {\n            bytes memory packed = bytes.concat(\n                bytes32(uint256(operationType)),\n                bytes32(uint256(tokenType)),\n                bytes32(bytes20(contractAddress)),\n                bytes32(tokenId),\n                bytes32(bytes20(dest)),\n                bytes32(amount),\n                data\n            );\n            paramsHash = keccak256(bytes.concat(packed));\n        }\n        return (hash, paramsHash);\n    }\n\n\n    function reveal(bytes32[] calldata neighbors, uint32 indexWithNonce, bytes32 eotp,\n        OperationType operationType, TokenType tokenType, address contractAddress, uint256 tokenId, address payable dest, uint256 amount, bytes calldata data)\n    external {\n        _isCorrectProof(neighbors, indexWithNonce, eotp);\n        if (indexWithNonce == _numLeaves - 1) {\n            require(operationType == OperationType.RECOVER, \"Last operation reserved for recover\");\n        }\n        (bytes32 commitHash, bytes32 paramsHash) = _getRevealHash(neighbors[0], indexWithNonce, eotp,\n            operationType, tokenType, contractAddress, tokenId, dest, amount, data);\n        uint32 commitIndex = _verifyReveal(commitHash, indexWithNonce, paramsHash, eotp, operationType);\n        _completeReveal(commitHash, commitIndex, operationType);\n        // No revert should occur below this point\n        if (operationType == OperationType.TRACK) {\n            if (data.length > 0) {\n                _multiTrack(data);\n            } else {\n                _trackToken(tokenType, contractAddress, tokenId);\n            }\n        } else if (operationType == OperationType.UNTRACK) {\n            if (data.length > 0) {\n                _untrackToken(tokenType, contractAddress, tokenId);\n            } else {\n                _multiUntrack(data);\n            }\n        } else if (operationType == OperationType.TRANSFER_TOKEN) {\n            _transferToken(tokenType, contractAddress, tokenId, dest, amount, data);\n        } else if (operationType == OperationType.OVERRIDE_TRACK) {\n            _overrideTrackWithBytes(data);\n        } else if (operationType == OperationType.TRANSFER) {\n            _transfer(dest, amount);\n        } else if (operationType == OperationType.RECOVER) {\n            _recover();\n        } else if (operationType == OperationType.SET_RECOVERY_ADDRESS) {\n            _setRecoveryAddress(dest);\n        }\n    }\n\n    /// This is just a wrapper around a modifier previously called `isCorrectProof`, to avoid \"Stack too deep\" error. Duh.\n    function _isCorrectProof(bytes32[] calldata neighbors, uint32 position, bytes32 eotp) view internal {\n        require(neighbors.length == height - 1, \"Not enough neighbors provided\");\n        bytes32 h = sha256(bytes.concat(eotp));\n        if (position == _numLeaves - 1) {\n            // special case: recover only\n            h = eotp;\n        }\n        for (uint8 i = 0; i < height - 1; i++) {\n            if ((position & 0x01) == 0x01) {\n                h = sha256(bytes.concat(neighbors[i], h));\n            } else {\n                h = sha256(bytes.concat(h, neighbors[i]));\n            }\n            position >>= 1;\n        }\n        require(root == h, \"Proof is incorrect\");\n        return;\n    }\n\n    /// Remove old commits from storage, where the commit's timestamp is older than block.timestamp - REVEAL_MAX_DELAY. The purpose is to remove dangling data from blockchain, and prevent commits grow unbounded. This is executed at commit time. The committer pays for the gas of this cleanup. Therefore, any attacker who intend to spam commits would be disincentivized. The attacker would not succeed in preventing any normal operation by the user.\n    function _cleanupCommits() internal {\n        uint32 timelyIndex = 0;\n        uint32 bt = uint32(block.timestamp);\n        // go through past commits chronologically, starting from the oldest, and find the first commit that is not older than block.timestamp - REVEAL_MAX_DELAY.\n        for (; timelyIndex < commits.length; timelyIndex++) {\n            bytes32 hash = commits[timelyIndex];\n            Commit[] storage cc = commitLocker[hash];\n            // We may skip because the commit is already cleaned up and is considered \"untimely\".\n            if (cc.length == 0) {\n                continue;\n            }\n            // We take the first entry in `cc` as the timestamp for all commits under commit hash `hash`, because the first entry represents the oldest commit and only commit if an attacker is not attacking this wallet. If an attacker is front-running commits, the first entry may be from the attacker, but its timestamp should be identical to the user's commit (or close enough to the user's commit, if network is a bit congested)\n            Commit storage c = cc[0];\n        unchecked {\n            if (c.timestamp >= bt - REVEAL_MAX_DELAY) {\n                break;\n            }\n        }\n        }\n        // Now `timelyIndex` holds the index of the first commit that is timely. All commits at an index less than `timelyIndex` must be deleted;\n        if (timelyIndex == 0) {\n            // no commit is older than block.timestamp - REVEAL_MAX_DELAY. Nothing needs to be cleaned up\n            return;\n        }\n        // Delete Commit instances for commits that are are older than block.timestamp - REVEAL_MAX_DELAY\n        for (uint32 i = 0; i < timelyIndex; i++) {\n            bytes32 hash = commits[i];\n            Commit[] storage cc = commitLocker[hash];\n            for (uint32 j = 0; j < cc.length; j++) {\n                delete cc[j];\n            }\n            delete commitLocker[hash];\n        }\n        // Shift all commit hashes up by `timelyIndex` positions, and discard `commitIndex` number of hashes at the end of the array\n        // This process erases old commits\n        uint32 len = uint32(commits.length);\n        for (uint32 i = timelyIndex; i < len; i++) {\n        unchecked{\n            commits[i - timelyIndex] = commits[i];\n        }\n        }\n        for (uint32 i = 0; i < timelyIndex; i++) {\n            commits.pop();\n        }\n        // TODO (@polymorpher): upgrade the above code after solidity implements proper support for struct-array memory-storage copy operation.\n    }\n\n    function _isRevealTimely(uint32 commitTime) view internal returns (bool)\n    {\n        return uint32(block.timestamp) - commitTime < REVEAL_MAX_DELAY;\n    }\n\n    /// This function verifies that the first valid entry with respect to the given `eotp` in `commitLocker[hash]` matches the provided `paramsHash` and `verificationHash`. An entry is valid with respect to `eotp` iff `h3(entry.paramsHash . eotp)` equals `entry.verificationHash`\n    function _verifyReveal(bytes32 hash, uint32 indexWithNonce, bytes32 paramsHash, bytes32 eotp, OperationType operationType) view internal returns (uint32)\n    {\n        uint32 index = indexWithNonce / maxOperationsPerInterval;\n        uint8 nonce = uint8(indexWithNonce % maxOperationsPerInterval);\n        Commit[] storage cc = commitLocker[hash];\n        require(cc.length > 0, \"No commit found\");\n        for (uint32 i = 0; i < cc.length; i++) {\n            Commit storage c = cc[i];\n            bytes32 expectedVerificationHash = keccak256(bytes.concat(c.paramsHash, eotp));\n            if (c.verificationHash != expectedVerificationHash) {\n                // Invalid entry. Ignore\n                continue;\n            }\n            require(c.paramsHash == paramsHash, \"Parameter hash mismatch\");\n            if (operationType != OperationType.RECOVER) {\n                uint32 counter = c.timestamp / interval - t0;\n                require(counter == index, \"Index - timestamp mismatch\");\n                uint8 expectedNonce = nonces[counter];\n                require(nonce >= expectedNonce, \"Nonce too low\");\n            }\n            require(!c.completed, \"Commit already completed\");\n            // This normally should not happen, but when the network is congested (regardless of whether due to an attacker's malicious acts or not), the legitimate reveal may become untimely. This may happen before the old commit is cleaned up by another fresh commit. We enforce this restriction so that the attacker would not have a lot of time to reverse-engineer a single EOTP or leaf using an old commit.\n            require(_isRevealTimely(c.timestamp), \"Reveal too late\");\n            return i;\n        }\n        revert(\"No valid commit\");\n    }\n\n    function _completeReveal(bytes32 commitHash, uint32 commitIndex, OperationType operationType) internal {\n        Commit[] storage cc = commitLocker[commitHash];\n        require(cc.length > 0, \"Invalid commit hash\");\n        require(cc.length > commitIndex, \"Invalid commitIndex\");\n        Commit storage c = cc[commitIndex];\n        require(c.timestamp > 0, \"Invalid commit timestamp\");\n        if (operationType != OperationType.RECOVER) {\n            uint32 index = uint32(c.timestamp) / interval - t0;\n            _incrementNonce(index);\n            _cleanupNonces();\n        }\n        c.completed = true;\n    }\n\n    /// This function removes all tracked nonce values correspond to interval blocks that are older than block.timestamp - REVEAL_MAX_DELAY. In doing so, extraneous data in the blockchain is removed, and both nonces and nonceTracker are bounded in size.\n    function _cleanupNonces() internal {\n        uint32 tMin = uint32(block.timestamp) - REVEAL_MAX_DELAY;\n        uint32 indexMinUnadjusted = tMin / interval;\n        uint32 indexMin = 0;\n        if (indexMinUnadjusted > t0) {\n            indexMin = indexMinUnadjusted - t0;\n        }\n        uint32[] memory nonZeroNonces = new uint32[](nonceTracker.length);\n        uint32 numValidIndices = 0;\n        for (uint8 i = 0; i < nonceTracker.length; i++) {\n            uint32 index = nonceTracker[i];\n            if (index < indexMin) {\n                delete nonces[index];\n            } else {\n                nonZeroNonces[numValidIndices] = index;\n            unchecked {\n                numValidIndices++;\n            }\n            }\n        }\n        // TODO (@polymorpher): This can be later made more efficient by inline assembly. https://ethereum.stackexchange.com/questions/51891/how-to-pop-from-decrease-the-length-of-a-memory-array-in-solidity\n        uint32[] memory reducedArray = new uint32[](numValidIndices);\n        for (uint8 i = 0; i < numValidIndices; i++) {\n            reducedArray[i] = nonZeroNonces[i];\n        }\n        nonceTracker = reducedArray;\n    }\n\n    function _incrementNonce(uint32 index) internal {\n        uint8 v = nonces[index];\n        if (v == 0) {\n            nonceTracker.push(index);\n        }\n    unchecked{\n        nonces[index] = v + 1;\n    }\n    }\n}\n",
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+  "source": "// SPDX-License-Identifier: Apache-2.0\npragma solidity ^0.8.4;\n\nimport \"./TokenTracker.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\ncontract ONEWallet is TokenTracker {\n    event InsufficientFund(uint256 amount, uint256 balance, address dest);\n    event ExceedDailyLimit(uint256 amount, uint256 limit, uint256 current, address dest);\n    event UnknownTransferError(address dest);\n    event LastResortAddressNotSet();\n    event PaymentReceived(uint256 amount, address from);\n    event PaymentSent(uint256 amount, address dest);\n    event AutoRecoveryTriggered(address from);\n    event RecoveryFailure();\n\n    /// In future versions, it is planned that we may allow the user to extend the wallet's life through a function call. When that is implemented, the following variables may no longer be immutable, with the exception of root which shall serve as an identifier of the wallet\n    bytes32 immutable root; // Note: @ivan brought up a good point in reducing this to 16-bytes so hash of two consecutive nodes can be done in a single word (to save gas and reduce blockchain clutter). Let's not worry about that for now and re-evalaute this later.\n    uint8 immutable height; // including the root. e.g. for a tree with 4 leaves, the height is 3.\n    uint8 immutable interval; // otp interval in seconds, default is 30\n    uint32 immutable t0; // starting time block (effectiveTime (in ms) / interval)\n    uint32 immutable lifespan;  // in number of block (e.g. 1 block per [interval] seconds)\n    uint8 immutable maxOperationsPerInterval; // number of transactions permitted per OTP interval. Each transaction shall have a unique nonce. The nonce is auto-incremented within each interval\n    uint32 immutable _numLeaves; // 2 ** (height - 1)\n\n    /// global mutable variables\n    address payable lastResortAddress; // where money will be sent during a recovery process (or when the wallet is beyond its lifespan)\n    uint256 dailyLimit; // uint128 is sufficient, but uint256 is more efficient since EVM works with 32-byte words.\n    uint256 spentToday; // note: instead of tracking the money spent for the last 24h, we are simply tracking money spent per 24h block based on UTC time. It is good enough for now, but we may want to change this later.\n    uint32 lastTransferDay;\n\n    /// nonce tracking\n    mapping(uint32 => uint8) nonces; // keys: otp index (=timestamp in seconds / interval - t0); values: the expected nonce for that otp interval. An reveal with a nonce less than the expected value will be rejected\n    uint32[] nonceTracker; // list of nonces keys that have a non-zero value. keys cannot possibly result a successful reveal (indices beyond REVEAL_MAX_DELAY old) are auto-deleted during a clean up procedure that is called every time the nonces are incremented for some key. For each deleted key, the corresponding key in nonces will also be deleted. So the size of nonceTracker and nonces are both bounded.\n\n    // constants\n    uint32 constant REVEAL_MAX_DELAY = 60;\n    uint32 constant SECONDS_PER_DAY = 86400;\n    uint256 constant AUTO_RECOVERY_TRIGGER_AMOUNT = 1 ether;\n    uint32 constant MAX_COMMIT_SIZE = 120;\n\n    uint32 constant majorVersion = 0x8; // a change would require client to migrate\n    uint32 constant minorVersion = 0x0; // a change would not require the client to migrate\n\n    enum OperationType {\n        TRACK, UNTRACK, TRANSFER_TOKEN, OVERRIDE_TRACK, TRANSFER, SET_RECOVERY_ADDRESS, RECOVER,\n        REPLACE // reserved, not implemented yet. This is for replacing the root and set up new parameters (t0, lifespan)\n    }\n    /// commit management\n    struct Commit {\n        bytes32 hash;\n        bytes32 paramsHash;\n        bytes32 verificationHash;\n        uint32 timestamp;\n        bool completed;\n    }\n\n    bytes32[] commits; // self-clean on commit (auto delete commits that are beyond REVEAL_MAX_DELAY), so it's bounded by the number of commits an attacker can spam within REVEAL_MAX_DELAY time in the worst case, which is not too bad.\n    mapping(bytes32 => Commit[]) commitLocker;\n\n\n    constructor(bytes32 root_, uint8 height_, uint8 interval_, uint32 t0_, uint32 lifespan_, uint8 maxOperationsPerInterval_,\n        address payable lastResortAddress_, uint256 dailyLimit_)\n    {\n        root = root_;\n        height = height_;\n        interval = interval_;\n        t0 = t0_;\n        lifespan = lifespan_;\n        lastResortAddress = lastResortAddress_;\n        dailyLimit = dailyLimit_;\n        maxOperationsPerInterval = maxOperationsPerInterval_;\n        _numLeaves = uint32(2 ** (height_ - 1));\n    }\n\n    receive() external payable {\n        emit PaymentReceived(msg.value, msg.sender);\n        if (msg.value != AUTO_RECOVERY_TRIGGER_AMOUNT) {\n            return;\n        }\n        if (msg.sender != lastResortAddress) {\n            return;\n        }\n        if (lastResortAddress == address(0)) {\n            return;\n        }\n        if (msg.sender == address(this)) {\n            return;\n        }\n        emit AutoRecoveryTriggered(msg.sender);\n        require(_drain());\n    }\n\n\n    function retire() external returns (bool)\n    {\n        require(uint32(block.timestamp / interval) - t0 > lifespan, \"Too early to retire\");\n        require(lastResortAddress != address(0), \"Last resort address is not set\");\n        require(_drain(), \"Recovery failed\");\n        return true;\n    }\n\n    function getInfo() external view returns (bytes32, uint8, uint8, uint32, uint32, uint8, address, uint256)\n    {\n        return (root, height, interval, t0, lifespan, maxOperationsPerInterval, lastResortAddress, dailyLimit);\n    }\n\n    function getVersion() external pure returns (uint32, uint32)\n    {\n        return (majorVersion, minorVersion);\n    }\n\n    function getCurrentSpending() external view returns (uint256, uint256)\n    {\n        return (spentToday, lastTransferDay);\n    }\n\n    function getNonce() external view returns (uint8)\n    {\n        uint32 index = uint32(block.timestamp) / interval - t0;\n        return nonces[index];\n    }\n\n    function getCommits() external pure returns (bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory){\n        revert(\"Deprecated\");\n    }\n\n    function getAllCommits() external view returns (bytes32[] memory, bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory)\n    {\n        uint32 numCommits = 0;\n        for (uint32 i = 0; i < commits.length; i++) {\n            Commit[] storage cc = commitLocker[commits[i]];\n            numCommits += uint32(cc.length);\n        }\n        bytes32[] memory hashes = new bytes32[](numCommits);\n        bytes32[] memory paramHashes = new bytes32[](numCommits);\n        bytes32[] memory verificationHashes = new bytes32[](numCommits);\n        uint32[] memory timestamps = new uint32[](numCommits);\n        bool[] memory completed = new bool[](numCommits);\n        uint32 index = 0;\n        for (uint32 i = 0; i < commits.length; i++) {\n            Commit[] storage cc = commitLocker[commits[i]];\n            for (uint32 j = 0; j < cc.length; j++) {\n                Commit storage c = cc[j];\n                hashes[index] = c.hash;\n                paramHashes[index] = c.paramsHash;\n                verificationHashes[index] = c.verificationHash;\n                timestamps[index] = c.timestamp;\n                completed[index] = c.completed;\n                index++;\n            }\n        }\n        return (hashes, paramHashes, verificationHashes, timestamps, completed);\n    }\n\n    function findCommit(bytes32 /*hash*/) external pure returns (bytes32, bytes32, uint32, bool){\n        revert(\"Deprecated\");\n    }\n\n    function lookupCommit(bytes32 hash) external view returns (bytes32[] memory, bytes32[] memory, bytes32[] memory, uint32[] memory, bool[] memory){\n        Commit[] storage cc = commitLocker[hash];\n        bytes32[] memory hashes = new bytes32[](cc.length);\n        bytes32[] memory paramHashes = new bytes32[](cc.length);\n        bytes32[] memory verificationHashes = new bytes32[](cc.length);\n        uint32[] memory timestamps = new uint32[](cc.length);\n        bool[] memory completed = new bool[](cc.length);\n        for (uint32 i = 0; i < cc.length; i++) {\n            Commit storage c = cc[i];\n            hashes[i] = c.hash;\n            paramHashes[i] = c.paramsHash;\n            verificationHashes[i] = c.verificationHash;\n            timestamps[i] = c.timestamp;\n            completed[i] = c.completed;\n        }\n        return (hashes, paramHashes, verificationHashes, timestamps, completed);\n    }\n\n    function commit(bytes32 hash, bytes32 paramsHash, bytes32 verificationHash) external {\n        _cleanupCommits();\n        Commit memory nc = Commit(hash, paramsHash, verificationHash, uint32(block.timestamp), false);\n        require(commits.length < MAX_COMMIT_SIZE, \"Too many commits\");\n        commits.push(hash);\n        commitLocker[hash].push(nc);\n    }\n\n    /// This function sends all remaining funds of the wallet to `lastResortAddress`. The caller should verify that `lastResortAddress` is not null.\n    /// TODO: also transfer all tracked ERC20, 721, 1155 tokens to `lastResortAddress`\n    function _drain() internal returns (bool) {\n        // this may be triggered after revealing the proof, and we must prevent revert in all cases\n        (bool success,) = lastResortAddress.call{value : address(this).balance}(\"\");\n        return success;\n    }\n\n    function _transfer(address payable dest, uint256 amount) internal returns (bool) {\n        uint32 day = uint32(block.timestamp / SECONDS_PER_DAY);\n        if (day > lastTransferDay) {\n            spentToday = 0;\n            lastTransferDay = day;\n        }\n        if (spentToday + amount > dailyLimit) {\n            emit ExceedDailyLimit(amount, dailyLimit, spentToday, dest);\n            return false;\n        }\n        if (address(this).balance < amount) {\n            emit InsufficientFund(amount, address(this).balance, dest);\n            return false;\n        }\n        spentToday += amount;\n        (bool success,) = dest.call{value : amount}(\"\");\n        // we do not want to revert the whole transaction if this operation fails, since EOTP is already revealed\n        if (!success) {\n            spentToday -= amount;\n            emit UnknownTransferError(dest);\n            return false;\n        }\n\n        emit PaymentSent(amount, dest);\n        return true;\n    }\n\n    function _recover() internal returns (bool){\n        if (lastResortAddress == address(0)) {\n            emit LastResortAddressNotSet();\n            return false;\n        }\n        if (!_drain()) {\n            emit RecoveryFailure();\n            return false;\n        }\n        return true;\n    }\n\n    function _setRecoveryAddress(address payable lastResortAddress_) internal {\n        require(lastResortAddress == address(0), \"Last resort address is already set\");\n        lastResortAddress = lastResortAddress_;\n    }\n\n    function _transferToken(TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount, bytes memory data) internal {\n        if (tokenType == TokenType.ERC20) {\n            try IERC20(contractAddress).transfer(dest, amount) returns (bool success){\n                if (success) {\n                    _trackToken(tokenType, contractAddress, tokenId);\n                    emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n                    return;\n                }\n                emit TokenTransferFailed(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        } else if (tokenType == TokenType.ERC721) {\n            try IERC721(contractAddress).safeTransferFrom(address(this), dest, tokenId, data){\n                emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        } else if (tokenType == TokenType.ERC1155) {\n            try IERC1155(contractAddress).safeTransferFrom(address(this), dest, tokenId, amount, data) {\n                emit TokenTransferSucceeded(tokenType, contractAddress, tokenId, dest, amount);\n            } catch Error(string memory reason){\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, reason);\n            } catch {\n                emit TokenTransferError(tokenType, contractAddress, tokenId, dest, amount, \"\");\n            }\n        }\n    }\n\n    /// Provides commitHash, paramsHash, and verificationHash given the parameters\n    function _getRevealHash(bytes32 neighbor, uint32 indexWithNonce, bytes32 eotp,\n        OperationType operationType, TokenType tokenType, address contractAddress, uint256 tokenId, address dest, uint256 amount, bytes calldata data) pure internal returns (bytes32, bytes32) {\n        bytes32 hash = keccak256(bytes.concat(neighbor, bytes32(bytes4(indexWithNonce)), eotp));\n        bytes32 paramsHash = bytes32(0);\n        if (operationType == OperationType.TRANSFER) {\n            paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest))), bytes32(amount)));\n        } else if (operationType == OperationType.RECOVER) {\n            paramsHash = keccak256(data);\n        } else if (operationType == OperationType.SET_RECOVERY_ADDRESS) {\n            paramsHash = keccak256(bytes.concat(bytes32(bytes20(address(dest)))));\n        } else {\n            bytes memory packed = bytes.concat(\n                bytes32(uint256(operationType)),\n                bytes32(uint256(tokenType)),\n                bytes32(bytes20(contractAddress)),\n                bytes32(tokenId),\n                bytes32(bytes20(dest)),\n                bytes32(amount),\n                data\n            );\n            paramsHash = keccak256(bytes.concat(packed));\n        }\n        return (hash, paramsHash);\n    }\n\n\n    function reveal(bytes32[] calldata neighbors, uint32 indexWithNonce, bytes32 eotp,\n        OperationType operationType, TokenType tokenType, address contractAddress, uint256 tokenId, address payable dest, uint256 amount, bytes calldata data)\n    external {\n        _isCorrectProof(neighbors, indexWithNonce, eotp);\n        if (indexWithNonce == _numLeaves - 1) {\n            require(operationType == OperationType.RECOVER, \"Last operation reserved for recover\");\n        }\n        (bytes32 commitHash, bytes32 paramsHash) = _getRevealHash(neighbors[0], indexWithNonce, eotp,\n            operationType, tokenType, contractAddress, tokenId, dest, amount, data);\n        uint32 commitIndex = _verifyReveal(commitHash, indexWithNonce, paramsHash, eotp, operationType);\n        _completeReveal(commitHash, commitIndex, operationType);\n        // No revert should occur below this point\n        if (operationType == OperationType.TRACK) {\n            if (data.length > 0) {\n                _multiTrack(data);\n            } else {\n                _trackToken(tokenType, contractAddress, tokenId);\n            }\n        } else if (operationType == OperationType.UNTRACK) {\n            if (data.length > 0) {\n                _untrackToken(tokenType, contractAddress, tokenId);\n            } else {\n                _multiUntrack(data);\n            }\n        } else if (operationType == OperationType.TRANSFER_TOKEN) {\n            _transferToken(tokenType, contractAddress, tokenId, dest, amount, data);\n        } else if (operationType == OperationType.OVERRIDE_TRACK) {\n            _overrideTrackWithBytes(data);\n        } else if (operationType == OperationType.TRANSFER) {\n            _transfer(dest, amount);\n        } else if (operationType == OperationType.RECOVER) {\n            _recover();\n        } else if (operationType == OperationType.SET_RECOVERY_ADDRESS) {\n            _setRecoveryAddress(dest);\n        }\n    }\n\n    /// This is just a wrapper around a modifier previously called `isCorrectProof`, to avoid \"Stack too deep\" error. Duh.\n    function _isCorrectProof(bytes32[] calldata neighbors, uint32 position, bytes32 eotp) view internal {\n        require(neighbors.length == height - 1, \"Not enough neighbors provided\");\n        bytes32 h = sha256(bytes.concat(eotp));\n        if (position == _numLeaves - 1) {\n            // special case: recover only\n            h = eotp;\n        }\n        for (uint8 i = 0; i < height - 1; i++) {\n            if ((position & 0x01) == 0x01) {\n                h = sha256(bytes.concat(neighbors[i], h));\n            } else {\n                h = sha256(bytes.concat(h, neighbors[i]));\n            }\n            position >>= 1;\n        }\n        require(root == h, \"Proof is incorrect\");\n        return;\n    }\n\n    /// Remove old commits from storage, where the commit's timestamp is older than block.timestamp - REVEAL_MAX_DELAY. The purpose is to remove dangling data from blockchain, and prevent commits grow unbounded. This is executed at commit time. The committer pays for the gas of this cleanup. Therefore, any attacker who intend to spam commits would be disincentivized. The attacker would not succeed in preventing any normal operation by the user.\n    function _cleanupCommits() internal {\n        uint32 timelyIndex = 0;\n        uint32 bt = uint32(block.timestamp);\n        // go through past commits chronologically, starting from the oldest, and find the first commit that is not older than block.timestamp - REVEAL_MAX_DELAY.\n        for (; timelyIndex < commits.length; timelyIndex++) {\n            bytes32 hash = commits[timelyIndex];\n            Commit[] storage cc = commitLocker[hash];\n            // We may skip because the commit is already cleaned up and is considered \"untimely\".\n            if (cc.length == 0) {\n                continue;\n            }\n            // We take the first entry in `cc` as the timestamp for all commits under commit hash `hash`, because the first entry represents the oldest commit and only commit if an attacker is not attacking this wallet. If an attacker is front-running commits, the first entry may be from the attacker, but its timestamp should be identical to the user's commit (or close enough to the user's commit, if network is a bit congested)\n            Commit storage c = cc[0];\n        unchecked {\n            if (c.timestamp >= bt - REVEAL_MAX_DELAY) {\n                break;\n            }\n        }\n        }\n        // Now `timelyIndex` holds the index of the first commit that is timely. All commits at an index less than `timelyIndex` must be deleted;\n        if (timelyIndex == 0) {\n            // no commit is older than block.timestamp - REVEAL_MAX_DELAY. Nothing needs to be cleaned up\n            return;\n        }\n        // Delete Commit instances for commits that are are older than block.timestamp - REVEAL_MAX_DELAY\n        for (uint32 i = 0; i < timelyIndex; i++) {\n            bytes32 hash = commits[i];\n            Commit[] storage cc = commitLocker[hash];\n            for (uint32 j = 0; j < cc.length; j++) {\n                delete cc[j];\n            }\n            delete commitLocker[hash];\n        }\n        // Shift all commit hashes up by `timelyIndex` positions, and discard `commitIndex` number of hashes at the end of the array\n        // This process erases old commits\n        uint32 len = uint32(commits.length);\n        for (uint32 i = timelyIndex; i < len; i++) {\n        unchecked{\n            commits[i - timelyIndex] = commits[i];\n        }\n        }\n        for (uint32 i = 0; i < timelyIndex; i++) {\n            commits.pop();\n        }\n        // TODO (@polymorpher): upgrade the above code after solidity implements proper support for struct-array memory-storage copy operation.\n    }\n\n    function _isRevealTimely(uint32 commitTime) view internal returns (bool)\n    {\n        return uint32(block.timestamp) - commitTime < REVEAL_MAX_DELAY;\n    }\n\n    /// This function verifies that the first valid entry with respect to the given `eotp` in `commitLocker[hash]` matches the provided `paramsHash` and `verificationHash`. An entry is valid with respect to `eotp` iff `h3(entry.paramsHash . eotp)` equals `entry.verificationHash`\n    function _verifyReveal(bytes32 hash, uint32 indexWithNonce, bytes32 paramsHash, bytes32 eotp, OperationType operationType) view internal returns (uint32)\n    {\n        uint32 index = indexWithNonce / maxOperationsPerInterval;\n        uint8 nonce = uint8(indexWithNonce % maxOperationsPerInterval);\n        Commit[] storage cc = commitLocker[hash];\n        require(cc.length > 0, \"No commit found\");\n        for (uint32 i = 0; i < cc.length; i++) {\n            Commit storage c = cc[i];\n            bytes32 expectedVerificationHash = keccak256(bytes.concat(c.paramsHash, eotp));\n            if (c.verificationHash != expectedVerificationHash) {\n                // Invalid entry. Ignore\n                continue;\n            }\n            require(c.paramsHash == paramsHash, \"Parameter hash mismatch\");\n            if (operationType != OperationType.RECOVER) {\n                uint32 counter = c.timestamp / interval - t0;\n                require(counter == index, \"Index - timestamp mismatch\");\n                uint8 expectedNonce = nonces[counter];\n                require(nonce >= expectedNonce, \"Nonce too low\");\n            }\n            require(!c.completed, \"Commit already completed\");\n            // This normally should not happen, but when the network is congested (regardless of whether due to an attacker's malicious acts or not), the legitimate reveal may become untimely. This may happen before the old commit is cleaned up by another fresh commit. We enforce this restriction so that the attacker would not have a lot of time to reverse-engineer a single EOTP or leaf using an old commit.\n            require(_isRevealTimely(c.timestamp), \"Reveal too late\");\n            return i;\n        }\n        revert(\"No valid commit\");\n    }\n\n    function _completeReveal(bytes32 commitHash, uint32 commitIndex, OperationType operationType) internal {\n        Commit[] storage cc = commitLocker[commitHash];\n        require(cc.length > 0, \"Invalid commit hash\");\n        require(cc.length > commitIndex, \"Invalid commitIndex\");\n        Commit storage c = cc[commitIndex];\n        require(c.timestamp > 0, \"Invalid commit timestamp\");\n        if (operationType != OperationType.RECOVER) {\n            uint32 index = uint32(c.timestamp) / interval - t0;\n            _incrementNonce(index);\n            _cleanupNonces();\n        }\n        c.completed = true;\n    }\n\n    /// This function removes all tracked nonce values correspond to interval blocks that are older than block.timestamp - REVEAL_MAX_DELAY. In doing so, extraneous data in the blockchain is removed, and both nonces and nonceTracker are bounded in size.\n    function _cleanupNonces() internal {\n        uint32 tMin = uint32(block.timestamp) - REVEAL_MAX_DELAY;\n        uint32 indexMinUnadjusted = tMin / interval;\n        uint32 indexMin = 0;\n        if (indexMinUnadjusted > t0) {\n            indexMin = indexMinUnadjusted - t0;\n        }\n        uint32[] memory nonZeroNonces = new uint32[](nonceTracker.length);\n        uint32 numValidIndices = 0;\n        for (uint8 i = 0; i < nonceTracker.length; i++) {\n            uint32 index = nonceTracker[i];\n            if (index < indexMin) {\n                delete nonces[index];\n            } else {\n                nonZeroNonces[numValidIndices] = index;\n            unchecked {\n                numValidIndices++;\n            }\n            }\n        }\n        // TODO (@polymorpher): This can be later made more efficient by inline assembly. https://ethereum.stackexchange.com/questions/51891/how-to-pop-from-decrease-the-length-of-a-memory-array-in-solidity\n        uint32[] memory reducedArray = new uint32[](numValidIndices);\n        for (uint8 i = 0; i < numValidIndices; i++) {\n            reducedArray[i] = nonZeroNonces[i];\n        }\n        nonceTracker = reducedArray;\n    }\n\n    function _incrementNonce(uint32 index) internal {\n        uint8 v = nonces[index];\n        if (v == 0) {\n            nonceTracker.push(index);\n        }\n    unchecked{\n        nonces[index] = v + 1;\n    }\n    }\n}\n",
   "sourcePath": "/Users/polymorpher/git/one-wallet/code/contracts/ONEWallet.sol",
   "ast": {
     "absolutePath": "project:/contracts/ONEWallet.sol",
@@ -29150,7 +29150,7 @@
               }
             },
             "value": {
-              "hexValue": "307837",
+              "hexValue": "307838",
               "id": 480,
               "isConstant": false,
               "isLValue": false,
@@ -29160,10 +29160,10 @@
               "nodeType": "Literal",
               "src": "3190:3:6",
               "typeDescriptions": {
-                "typeIdentifier": "t_rational_7_by_1",
-                "typeString": "int_const 7"
+                "typeIdentifier": "t_rational_8_by_1",
+                "typeString": "int_const 8"
               },
-              "value": "0x7"
+              "value": "0x8"
             },
             "visibility": "internal"
           },
@@ -29193,7 +29193,7 @@
               }
             },
             "value": {
-              "hexValue": "307833",
+              "hexValue": "307830",
               "id": 483,
               "isConstant": false,
               "isLValue": false,
@@ -29203,10 +29203,10 @@
               "nodeType": "Literal",
               "src": "3274:3:6",
               "typeDescriptions": {
-                "typeIdentifier": "t_rational_3_by_1",
-                "typeString": "int_const 3"
+                "typeIdentifier": "t_rational_0_by_1",
+                "typeString": "int_const 0"
               },
-              "value": "0x3"
+              "value": "0x0"
             },
             "visibility": "internal"
           },
@@ -56781,7 +56781,7 @@
               }
             },
             "value": {
-              "hexValue": "307837",
+              "hexValue": "307838",
               "id": 480,
               "isConstant": false,
               "isLValue": false,
@@ -56791,10 +56791,10 @@
               "nodeType": "Literal",
               "src": "3190:3:6",
               "typeDescriptions": {
-                "typeIdentifier": "t_rational_7_by_1",
-                "typeString": "int_const 7"
+                "typeIdentifier": "t_rational_8_by_1",
+                "typeString": "int_const 8"
               },
-              "value": "0x7"
+              "value": "0x8"
             },
             "visibility": "internal"
           },
@@ -56824,7 +56824,7 @@
               }
             },
             "value": {
-              "hexValue": "307833",
+              "hexValue": "307830",
               "id": 483,
               "isConstant": false,
               "isLValue": false,
@@ -56834,10 +56834,10 @@
               "nodeType": "Literal",
               "src": "3274:3:6",
               "typeDescriptions": {
-                "typeIdentifier": "t_rational_3_by_1",
-                "typeString": "int_const 3"
+                "typeIdentifier": "t_rational_0_by_1",
+                "typeString": "int_const 0"
               },
-              "value": "0x3"
+              "value": "0x0"
             },
             "visibility": "internal"
           },
@@ -83235,7 +83235,7 @@
   },
   "networks": {},
   "schemaVersion": "3.4.2",
-  "updatedAt": "2021-08-05T10:36:55.344Z",
+  "updatedAt": "2021-08-05T12:04:37.311Z",
   "devdoc": {
     "kind": "dev",
     "methods": {
diff --git a/code/contracts/ONEWallet.sol b/code/contracts/ONEWallet.sol
index 81d64606..02ee647a 100644
--- a/code/contracts/ONEWallet.sol
+++ b/code/contracts/ONEWallet.sol
@@ -39,8 +39,8 @@ contract ONEWallet is TokenTracker {
     uint256 constant AUTO_RECOVERY_TRIGGER_AMOUNT = 1 ether;
     uint32 constant MAX_COMMIT_SIZE = 120;
 
-    uint32 constant majorVersion = 0x7; // a change would require client to migrate
-    uint32 constant minorVersion = 0x3; // a change would not require the client to migrate
+    uint32 constant majorVersion = 0x8; // a change would require client to migrate
+    uint32 constant minorVersion = 0x0; // a change would not require the client to migrate
 
     enum OperationType {
         TRACK, UNTRACK, TRANSFER_TOKEN, OVERRIDE_TRACK, TRANSFER, SET_RECOVERY_ADDRESS, RECOVER,

From ec5ab146dca192b594aa0ab33a7793814af06007 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 05:05:23 -0700
Subject: [PATCH 47/59] revealRecovery with data

---
 code/lib/api/index.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/code/lib/api/index.js b/code/lib/api/index.js
index d5f2ffaf..fc0aaa6e 100644
--- a/code/lib/api/index.js
+++ b/code/lib/api/index.js
@@ -336,7 +336,7 @@ const api = {
     revealTokenOperation: async ({ address, neighbors, index, eotp, operationType, tokenType, contractAddress, tokenId, dest, amount, data = '0x' }) => {
       return api.relayer.reveal({ address, neighbors, index, eotp, operationType, tokenType, contractAddress, tokenId, dest, amount, data })
     },
-    revealRecovery: async ({ neighbors, index, eotp, address }) => {
+    revealRecovery: async ({ neighbors, index, eotp, address, data }) => {
       return api.relayer.reveal({
         address,
         neighbors,
@@ -348,6 +348,7 @@ const api = {
         tokenId: 0,
         dest: ONEConstants.EmptyAddress,
         amount: 0,
+        data,
       })
     },
     revealSetRecoveryAddress: async ({ neighbors, index, eotp, address, lastResortAddress }) => {

From 36a359424911451a3a34cb556a930da6ab59109a Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 05:05:33 -0700
Subject: [PATCH 48/59] doRecovery

---
 code/client/src/pages/Show.jsx | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/code/client/src/pages/Show.jsx b/code/client/src/pages/Show.jsx
index 8e03c6de..37d2f2a6 100644
--- a/code/client/src/pages/Show.jsx
+++ b/code/client/src/pages/Show.jsx
@@ -6,6 +6,7 @@ import WalletConstants from '../constants/wallet'
 import walletActions from '../state/modules/wallet/actions'
 import util, { useWindowDimensions } from '../util'
 import ONE from '../../../lib/onewallet'
+import ONEUtil from '../../../lib/util'
 import ONEConstants from '../../../lib/constants'
 import api from '../api'
 import * as Sentry from '@sentry/browser'
@@ -304,15 +305,22 @@ const Show = () => {
   }
 
   const doRecovery = async () => {
+    let { hash, bytes } = ONE.computeRecoveryHash({ hseed: wallet.hseed })
+    if (!(wallet.majorVersion >= 8)) {
+      // contracts <= v7 rely on paramsHash = bytes32(0) for recover, so we must handle this special case here
+      hash = new Uint8Array(32)
+    }
+    const data = ONEUtil.hexString(bytes)
     SmartFlows.commitReveal({
       wallet,
       eotpBuilder: EotpBuilders.recovery,
-      commitHashGenerator: ONE.computeRecoveryHash,
+      commitHashGenerator: () => ({ hash, bytes: new Uint8Array(0) }), // Only legacy committer uses `bytes`. It mingles them with other parameters to produce hash. legacy recover has no parameters, therefore `bytes` should be empty byte array
       beforeCommit: () => setStage(1),
       afterCommit: () => setStage(2),
       onCommitError,
       onCommitFailure,
       revealAPI: api.relayer.revealRecovery,
+      revealArgs: { data },
       onRevealFailure,
       onRevealError,
       onRevealAttemptFailed,

From 8c3478e7ce17656bd3b5049addbe55e3c6045ee8 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 05:09:42 -0700
Subject: [PATCH 49/59] skip checking minor version

---
 code/client/src/pages/Show.jsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/client/src/pages/Show.jsx b/code/client/src/pages/Show.jsx
index 37d2f2a6..756ab6b5 100644
--- a/code/client/src/pages/Show.jsx
+++ b/code/client/src/pages/Show.jsx
@@ -409,7 +409,7 @@ const Show = () => {
             <Button type='primary' size='large' shape='round' onClick={showSetRecoveryAddress}> Set </Button>
           </Col>}
       </TallRow>
-      {wallet.majorVersion && wallet.minorVersion &&
+      {wallet.majorVersion &&
         <TallRow align='middle'>
           <Col span={isMobile ? 24 : 12}> <Title level={3}>Wallet Version</Title></Col>
           <Col>

From 4d658c53a461731e79f0075747d8e3cb863fae15 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 05:28:36 -0700
Subject: [PATCH 50/59] flow: allow index override

---
 code/lib/api/flow.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/code/lib/api/flow.js b/code/lib/api/flow.js
index 4a21caf1..052fa18a 100644
--- a/code/lib/api/flow.js
+++ b/code/lib/api/flow.js
@@ -54,7 +54,7 @@ const Flows = {
     wallet, layers, commitHashGenerator, commitHashArgs,
     beforeCommit, afterCommit, onCommitError, onCommitFailure,
     revealAPI, revealArgs, onRevealFailure, onRevealSuccess, onRevealError, onRevealAttemptFailed,
-    beforeReveal,
+    beforeReveal, index,
     maxTransferAttempts = 3, checkCommitInterval = 5000,
     message = messager
   }) => {
@@ -66,7 +66,10 @@ const Flows = {
         return
       }
     }
-    const index = ONEUtil.timeToIndex({ effectiveTime })
+    index = index || ONEUtil.timeToIndex({ effectiveTime })
+    if (index < 0) {
+      index = layers[0].length / 32 - 1
+    }
     let nonce // should get from blockchain, but omitted for now because all wallets have maxOperationsPerInterval set to 1.
     let rand
     if (randomness > 0) {

From 344f9bd24a4f8928fb904a6af6c81939704607d2 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 05:28:49 -0700
Subject: [PATCH 51/59] relayer: show reveal params on verbose mode

---
 code/relayer/routes/index.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/code/relayer/routes/index.js b/code/relayer/routes/index.js
index 6af7b617..4912af7e 100644
--- a/code/relayer/routes/index.js
+++ b/code/relayer/routes/index.js
@@ -118,6 +118,9 @@ router.post('/reveal', generalLimiter({ max: 60 }), walletAddressLimiter({ max:
   if (!checkParams({ neighbors, index, eotp, address, operationType, tokenType, contractAddress, tokenId, dest, amount, data }, res)) {
     return
   }
+  if (config.debug || config.verbose) {
+    console.log(`[/reveal] `, { neighbors, index, eotp, address, operationType, tokenType, contractAddress, tokenId, dest, amount, data })
+  }
   if (!(req.majorVersion >= 6)) {
     operationType = parseInt(operationType || -1)
     if (!(operationType > 0)) {

From 5970e3ef7544789d3e276d6a4ff48deaa5565b72 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 05:29:04 -0700
Subject: [PATCH 52/59] doRecovery: fix issues

---
 code/client/src/pages/Show.jsx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/code/client/src/pages/Show.jsx b/code/client/src/pages/Show.jsx
index 756ab6b5..5b2624b8 100644
--- a/code/client/src/pages/Show.jsx
+++ b/code/client/src/pages/Show.jsx
@@ -305,7 +305,7 @@ const Show = () => {
   }
 
   const doRecovery = async () => {
-    let { hash, bytes } = ONE.computeRecoveryHash({ hseed: wallet.hseed })
+    let { hash, bytes } = ONE.computeRecoveryHash({ hseed: ONEUtil.hexToBytes(wallet.hseed) })
     if (!(wallet.majorVersion >= 8)) {
       // contracts <= v7 rely on paramsHash = bytes32(0) for recover, so we must handle this special case here
       hash = new Uint8Array(32)
@@ -314,6 +314,7 @@ const Show = () => {
     SmartFlows.commitReveal({
       wallet,
       eotpBuilder: EotpBuilders.recovery,
+      index: -1,
       commitHashGenerator: () => ({ hash, bytes: new Uint8Array(0) }), // Only legacy committer uses `bytes`. It mingles them with other parameters to produce hash. legacy recover has no parameters, therefore `bytes` should be empty byte array
       beforeCommit: () => setStage(1),
       afterCommit: () => setStage(2),

From 7c135084c6134cfc14db6bd79c845e8a6fcb288b Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 05:36:15 -0700
Subject: [PATCH 53/59] rearrange ui elements

---
 code/client/src/pages/Show.jsx | 46 +++++++++++++++++-----------------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/code/client/src/pages/Show.jsx b/code/client/src/pages/Show.jsx
index 5b2624b8..3cc8c912 100644
--- a/code/client/src/pages/Show.jsx
+++ b/code/client/src/pages/Show.jsx
@@ -393,23 +393,6 @@ const Show = () => {
           </Space>
         </Col>
       </TallRow>
-      <TallRow align='middle'>
-        <Col span={isMobile ? 24 : 12}> <Title level={3}>Recovery Address</Title></Col>
-        {lastResortAddress && !util.isEmptyAddress(lastResortAddress) &&
-          <Col>
-            <Space>
-              <Tooltip title={oneLastResort}>
-                <ExplorerLink copyable={oneLastResort && { text: oneLastResort }} href={util.getNetworkExplorerUrl(address, network)}>
-                  {util.ellipsisAddress(oneLastResort)}
-                </ExplorerLink>
-              </Tooltip>
-            </Space>
-          </Col>}
-        {!(lastResortAddress && !util.isEmptyAddress(lastResortAddress)) &&
-          <Col>
-            <Button type='primary' size='large' shape='round' onClick={showSetRecoveryAddress}> Set </Button>
-          </Col>}
-      </TallRow>
       {wallet.majorVersion &&
         <TallRow align='middle'>
           <Col span={isMobile ? 24 : 12}> <Title level={3}>Wallet Version</Title></Col>
@@ -417,18 +400,35 @@ const Show = () => {
             <Text>{wallet.majorVersion}.{wallet.minorVersion}</Text>
           </Col>
         </TallRow>}
+      <Row style={{ marginTop: 24 }}>
+        <Popconfirm title='Are you sure？' onConfirm={onDeleteWallet}>
+          <Button type='primary' shape='round' danger size='large' icon={<DeleteOutlined />}>Delete locally</Button>
+        </Popconfirm>
+      </Row>
     </>
   )
   const RecoverWallet = () => {
     return (
       <>
+        <TallRow align='middle'>
+          <Col span={isMobile ? 24 : 12}> <Title level={3}>Recovery Address</Title></Col>
+          {lastResortAddress && !util.isEmptyAddress(lastResortAddress) &&
+            <Col>
+              <Space>
+                <Tooltip title={oneLastResort}>
+                  <ExplorerLink copyable={oneLastResort && { text: oneLastResort }} href={util.getNetworkExplorerUrl(address, network)}>
+                    {util.ellipsisAddress(oneLastResort)}
+                  </ExplorerLink>
+                </Tooltip>
+              </Space>
+            </Col>}
+          {!(lastResortAddress && !util.isEmptyAddress(lastResortAddress)) &&
+            <Col>
+              <Button type='primary' size='large' shape='round' onClick={showSetRecoveryAddress}> Set </Button>
+            </Col>}
+        </TallRow>
         <Row style={{ marginTop: 48 }}>
-          <Button type='link' style={{ padding: 0 }} size='large' onClick={showRecovery} icon={<WarningOutlined />}>I lost my Google Authenticator</Button>
-        </Row>
-        <Row style={{ marginTop: 24 }}>
-          <Popconfirm title='Are you sure？' onConfirm={onDeleteWallet}>
-            <Button type='link' style={{ color: 'red', padding: 0 }} size='large' icon={<DeleteOutlined />}>Delete this wallet locally</Button>
-          </Popconfirm>
+          <Button type='primary' size='large' shape='round' onClick={showRecovery} icon={<WarningOutlined />}>Recover funds</Button>
         </Row>
       </>
     )

From 45af94f9d6b232ad01bca1760a50bf8551680c75 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 06:00:42 -0700
Subject: [PATCH 54/59] make restore work

---
 code/client/src/pages/Restore.jsx         | 17 ++++++++++++++---
 code/client/src/worker/ONEWalletWorker.js |  2 ++
 code/lib/onewallet.js                     |  1 +
 3 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/code/client/src/pages/Restore.jsx b/code/client/src/pages/Restore.jsx
index f90e2ea1..c9164923 100644
--- a/code/client/src/pages/Restore.jsx
+++ b/code/client/src/pages/Restore.jsx
@@ -26,6 +26,7 @@ const Restore = () => {
   const dispatch = useDispatch()
   const [videoDevices, setVideoDevices] = useState([])
   const [secret, setSecret] = useState()
+  const [secret2, setSecret2] = useState()
   const [name, setName] = useState()
   const [device, setDevice] = useState()
   const { isMobile } = useWindowDimensions()
@@ -63,10 +64,19 @@ const Restore = () => {
         const data = new URL(e).searchParams.get('data')
         const params = MigrationPayload.decode(Buffer.from(data, 'base64')).otpParameters
         const filteredParams = params.filter(e => e.issuer === 'ONE Wallet' || e.issuer === 'Harmony')
-        if (filteredParams.length > 1) {
+        if (filteredParams.length > 2) {
           message.error('You selected more than one authenticator entry to export. Please reselect on Google Authenticator')
           return
         }
+        if (filteredParams.length === 2) {
+          const names = filteredParams.map(e => e.name.split('-')[0].trim()).map(e => e.split('(')[0].trim())
+          if (names[0] !== names[1]) {
+            message.error('You selected two wallets with different names. If you want to select two entries belonging to the same wallet, make sure they have the same name and the second one has "- 2nd" in the end')
+            return
+          }
+          const { secret } = filteredParams[1]
+          setSecret2(secret)
+        }
         const { secret, name } = filteredParams[0]
         setSecret(secret)
         setName(name)
@@ -107,7 +117,7 @@ const Restore = () => {
           setProgressStage(stage)
         }
         if (status === 'done') {
-          const { hseed, root: computedRoot, layers } = result
+          const { hseed, root: computedRoot, layers, doubleOtp } = result
           if (!ONEUtil.bytesEqual(ONEUtil.hexToBytes(root), computedRoot)) {
             console.error('Roots are not equal', root, ONEUtil.hexString(computedRoot))
             message.error('Verification failed. Your authenticator QR code might correspond to a different contract address.')
@@ -123,6 +133,7 @@ const Restore = () => {
             lastResortAddress,
             dailyLimit,
             hseed: ONEUtil.hexView(hseed),
+            doubleOtp,
             network
           }
           dispatch(walletActions.updateWallet(wallet))
@@ -134,7 +145,7 @@ const Restore = () => {
       }
       console.log('[Restore] Posting to worker')
       worker && worker.postMessage({
-        seed: secret, effectiveTime, duration, slotSize, interval: WalletConstants.interval
+        seed: secret, seed2: secret2, effectiveTime, duration, slotSize, interval: WalletConstants.interval
       })
     } catch (ex) {
       Sentry.captureException(ex)
diff --git a/code/client/src/worker/ONEWalletWorker.js b/code/client/src/worker/ONEWalletWorker.js
index 5c1d2d15..f213b74b 100644
--- a/code/client/src/worker/ONEWalletWorker.js
+++ b/code/client/src/worker/ONEWalletWorker.js
@@ -10,6 +10,7 @@ onmessage = async function (event) {
 
   const {
     hseed,
+    doubleOtp,
     leaves,
     root,
     layers,
@@ -30,6 +31,7 @@ onmessage = async function (event) {
     status: 'done',
     result: {
       hseed,
+      doubleOtp,
       leaves,
       root,
       layers,
diff --git a/code/lib/onewallet.js b/code/lib/onewallet.js
index d864e1d0..e0054177 100644
--- a/code/lib/onewallet.js
+++ b/code/lib/onewallet.js
@@ -95,6 +95,7 @@ const computeMerkleTree = async ({
     seed2, // discard
     randomnessResults, // discard
     hseed,
+    doubleOtp: !!(seed2),
     counter, // base time
     leaves, // = layers[0]
     root, // = layers[height - 1]

From 08834d77fca05fc9b3879c2f2735e9d441c55d1b Mon Sep 17 00:00:00 2001
From: Haolin Jiang <haolinj@gmail.com>
Date: Thu, 5 Aug 2021 23:08:06 +1000
Subject: [PATCH 55/59] Add 2 otp for recover address setup

---
 code/client/src/pages/Show.jsx | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/code/client/src/pages/Show.jsx b/code/client/src/pages/Show.jsx
index 3cc8c912..6ecd01ed 100644
--- a/code/client/src/pages/Show.jsx
+++ b/code/client/src/pages/Show.jsx
@@ -94,6 +94,9 @@ const Show = () => {
       return
     }
     setSection(action)
+
+    // Reset TOP input boxes on location change to make sure the input boxes are cleared.
+    resetOtp()
   }, [location])
 
   const showTab = (tab) => { history.push(Paths.showAddress(oneAddress, tab)) }
@@ -606,15 +609,33 @@ const Show = () => {
             <InputBox margin='auto' width={440} value={transferTo} onChange={({ target: { value } }) => setTransferTo(value)} placeholder='one1...' />
           </Space>
           <Space align='baseline' size='large' style={{ marginTop: 16 }}>
-            <Label><Hint>Code</Hint></Label>
+            <Label><Hint>Code {wallet.doubleOtp ? '1' : ''}</Hint></Label>
             <OtpBox
+              ref={otpRef}
               value={otpInput}
               onChange={setOtpInput}
             />
-            <Tooltip title='from your Google Authenticator'>
+            <Tooltip title={`from your Google Authenticator, i.e. ${wallet.name}`}>
               <QuestionCircleOutlined />
             </Tooltip>
           </Space>
+          {
+            wallet.doubleOtp
+              ? (
+                <Space align='baseline' size='large' style={{ marginTop: 16 }}>
+                  <Label><Hint>Code 2</Hint></Label>
+                  <OtpBox
+                    ref={otp2Ref}
+                    value={otp2Input}
+                    onChange={setOtp2Input}
+                  />
+                  <Tooltip title={`from your Google Authenticator, i.e. ${wallet.name} (2nd)`}>
+                    <QuestionCircleOutlined />
+                  </Tooltip>
+                </Space>
+                )
+              : <></>
+          }
         </Space>
         <Row justify='end' style={{ marginTop: 24 }}>
           <Space>

From 608426b6c9b92b247ed7d78a2478ef062ec08e79 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 08:29:57 -0700
Subject: [PATCH 56/59] add randomness by default

---
 code/client/src/pages/Create.jsx          | 12 +++++++++++-
 code/client/src/pages/Restore.jsx         | 14 ++++++++++++--
 code/client/src/util.js                   | 10 +++++++++-
 code/client/src/worker/ONEWalletWorker.js |  5 ++++-
 code/lib/api/flow.js                      | 17 ++++++++++++++++-
 code/lib/config/common.js                 |  6 ++++++
 code/lib/onewallet.js                     |  1 +
 7 files changed, 59 insertions(+), 6 deletions(-)

diff --git a/code/client/src/pages/Create.jsx b/code/client/src/pages/Create.jsx
index 4f549ec0..361ea22d 100644
--- a/code/client/src/pages/Create.jsx
+++ b/code/client/src/pages/Create.jsx
@@ -3,6 +3,7 @@ import { useDispatch, useSelector } from 'react-redux'
 import { useHistory } from 'react-router'
 import Paths from '../constants/paths'
 import api from '../api'
+import config from '../config'
 import ONEUtil from '../../../lib/util'
 import ONENames from '../../../lib/names'
 // import { uniqueNamesGenerator, colors, animals } from 'unique-names-generator'
@@ -123,7 +124,14 @@ const Create = () => {
       const t = Math.floor(Date.now() / WalletConstants.interval) * WalletConstants.interval
       setEffectiveTime(t)
       worker && worker.postMessage({
-        seed, seed2, effectiveTime: t, duration, slotSize, interval: WalletConstants.interval
+        seed,
+        seed2,
+        effectiveTime: t,
+        duration,
+        slotSize,
+        interval: WalletConstants.interval,
+        randomness: util.getRandomness(),
+        hasher: config.clientSecurity.hasher,
       })
     }
   }, [section, worker])
@@ -194,6 +202,8 @@ const Create = () => {
         hseed: ONEUtil.hexView(hseed),
         network,
         doubleOtp,
+        randomness: util.getRandomness(),
+        hasher: config.clientSecurity.hasher
       }
       await storeLayers()
       dispatch(walletActions.updateWallet(wallet))
diff --git a/code/client/src/pages/Restore.jsx b/code/client/src/pages/Restore.jsx
index c9164923..49aac505 100644
--- a/code/client/src/pages/Restore.jsx
+++ b/code/client/src/pages/Restore.jsx
@@ -15,6 +15,7 @@ import util, { useWindowDimensions } from '../util'
 import { handleAddressError } from '../handler'
 import Paths from '../constants/paths'
 import * as Sentry from '@sentry/browser'
+import config from '../config'
 
 const { Step } = Steps
 
@@ -134,7 +135,9 @@ const Restore = () => {
             dailyLimit,
             hseed: ONEUtil.hexView(hseed),
             doubleOtp,
-            network
+            network,
+            randomness: util.getRandomness(),
+            hasher: config.clientSecurity.hasher,
           }
           dispatch(walletActions.updateWallet(wallet))
           dispatch(walletActions.fetchBalance({ address }))
@@ -145,7 +148,14 @@ const Restore = () => {
       }
       console.log('[Restore] Posting to worker')
       worker && worker.postMessage({
-        seed: secret, seed2: secret2, effectiveTime, duration, slotSize, interval: WalletConstants.interval
+        seed: secret,
+        seed2: secret2,
+        effectiveTime,
+        duration,
+        slotSize,
+        interval: WalletConstants.interval,
+        randomness: util.getRandomness(),
+        hasher: config.clientSecurity.hasher
       })
     } catch (ex) {
       Sentry.captureException(ex)
diff --git a/code/client/src/util.js b/code/client/src/util.js
index 1ec78264..12e046ac 100644
--- a/code/client/src/util.js
+++ b/code/client/src/util.js
@@ -173,7 +173,15 @@ export default {
     return false
   },
 
-  compareVersion: (left, right) => left.majorVersion === right.majorVersion && left.minorVersion === right.minorVersion
+  compareVersion: (left, right) => left.majorVersion === right.majorVersion && left.minorVersion === right.minorVersion,
+
+  getRandomness: () => {
+    let r = config.clientSecurity.baseRandomness - config.clientSecurity.randomnessDamping
+    if (config.clientSecurity.hasher === 'argon2') {
+      r -= config.clientSecurity.argon2Damping
+    }
+    return r
+  }
 }
 
 function getWindowDimensions () {
diff --git a/code/client/src/worker/ONEWalletWorker.js b/code/client/src/worker/ONEWalletWorker.js
index f213b74b..02724c12 100644
--- a/code/client/src/worker/ONEWalletWorker.js
+++ b/code/client/src/worker/ONEWalletWorker.js
@@ -1,7 +1,8 @@
 const ONE = require('../../../lib/onewallet')
+const ONEUtil = require('../../../lib/util')
 
 onmessage = async function (event) {
-  const { seed, seed2, effectiveTime, duration, slotSize, interval } = event.data
+  const { seed, seed2, effectiveTime, duration, slotSize, interval, randomness, hasher } = event.data
   if (!seed) {
     // console.log('worker: received event but it has no valid data', event)
     return
@@ -20,6 +21,8 @@ onmessage = async function (event) {
     otpSeed2: seed2,
     effectiveTime,
     duration,
+    randomness,
+    hasher: ONEUtil.getHasher(hasher),
     maxOperationsPerInterval: slotSize,
     otpInterval: interval,
     progressObserver: (current, total, stage) => {
diff --git a/code/lib/api/flow.js b/code/lib/api/flow.js
index 052fa18a..4e9c17be 100644
--- a/code/lib/api/flow.js
+++ b/code/lib/api/flow.js
@@ -73,7 +73,22 @@ const Flows = {
     let nonce // should get from blockchain, but omitted for now because all wallets have maxOperationsPerInterval set to 1.
     let rand
     if (randomness > 0) {
-      rand = await ONE.recoverRandomness({ hseed, otp, otp2, nonce, leaf: layers[0][index], hasher: ONEUtil.getHasher(hasher) })
+      const encodedOtp = ONEUtil.encodeNumericalOtp(otp)
+      const encodedOtp2 = otp2 ? ONEUtil.encodeNumericalOtp(otp2) : undefined
+      rand = await ONE.recoverRandomness({
+        randomness,
+        hseed: ONEUtil.hexToBytes(hseed),
+        otp: encodedOtp,
+        otp2: encodedOtp2,
+        nonce,
+        leaf: layers[0].subarray(index * 32, index * 32 + 32),
+        hasher: ONEUtil.getHasher(hasher)
+      })
+      // console.log({ rand })
+      if (rand === null) {
+        message.error('Failed to decrypt proof. Code might be incorrect')
+        return
+      }
     }
     const eotp = await eotpBuilder({ otp, otp2, rand, wallet, layers })
     if (!eotp) {
diff --git a/code/lib/config/common.js b/code/lib/config/common.js
index b60d2b12..31bb5851 100644
--- a/code/lib/config/common.js
+++ b/code/lib/config/common.js
@@ -11,6 +11,12 @@ module.exports = {
     relayerSecret: process.env.RELAYER_SECRET || 'onewallet',
     sentryDsn: process.env.SENTRY_DSN
   },
+  clientSecurity: {
+    hasher: process.env.DEFAULT_HASHER || 'sha256',
+    baseRandomness: parseInt(process.env.BASE_RANDOMNESS || 20),
+    randomnessDamping: 2,
+    argon2Damping: 2,
+  },
   debug: DEBUG,
   networks: {
     ...(DEBUG && {
diff --git a/code/lib/onewallet.js b/code/lib/onewallet.js
index e0054177..9078c501 100644
--- a/code/lib/onewallet.js
+++ b/code/lib/onewallet.js
@@ -215,6 +215,7 @@ const bruteforceEOTP = ({ hseed, nonce = 0, leaf }) => {
 }
 
 const recoverRandomness = async ({ hseed, otp, otp2, nonce = 0, leaf, randomness = 17, hasher = sha256b }) => {
+  // console.log({ hseed, otp, otp2, nonce , leaf, randomness, hasher })
   const nonceBuffer = new Uint16Array([nonce])
   const ub = 2 ** randomness
   const buffer = new Uint8Array(ub * 32)

From 7d32482906baa58aba28d8623a65408c6d68f332 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 21:24:27 -0700
Subject: [PATCH 57/59] better test progress bar and fix a null issue

---
 code/lib/onewallet.js |  2 +-
 code/test/client.js   |  7 ++++---
 code/test/util.js     | 11 ++++++++++-
 3 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/code/lib/onewallet.js b/code/lib/onewallet.js
index 9078c501..42854e87 100644
--- a/code/lib/onewallet.js
+++ b/code/lib/onewallet.js
@@ -9,7 +9,7 @@ const computeMerkleTree = async ({
   otpSeed2, // can be null
   effectiveTime = Date.now(),
   duration = 3600 * 1000 * 24 * 365,
-  progressObserver, otpInterval = 30000,
+  progressObserver = () => {}, otpInterval = 30000,
   maxOperationsPerInterval = 1,
   randomness = 0, // number of bits for Controlled Randomness. 17 bits is recommended for the best balance between user experience and security. It maps to 2^17 = 131072 possibilities.
   hasher = sha256b // must be a batch hasher
diff --git a/code/test/client.js b/code/test/client.js
index abdf272b..b700bfa7 100644
--- a/code/test/client.js
+++ b/code/test/client.js
@@ -1,7 +1,8 @@
 const ONEUtil = require('../lib/util')
 const ONE = require('../lib/onewallet')
 const INTERVAL = 30000
-const DURATION = INTERVAL * 8
+// const DURATION = INTERVAL * 8
+const DURATION = INTERVAL * 2 * 60 * 24 * 364
 const { Logger, createWallet } = require('./util')
 const ONEConstants = require('../lib/constants')
 const unit = require('ethjs-unit')
@@ -286,11 +287,11 @@ contract('ONEWallet', (accounts) => {
     assert.equal(ONE_CENT.divn(2).toString(), purseBalance, `Purse must have correct balance: ${ONE_CENT.divn(2)}`)
   }
 
-  it('Client_Transfer: must compute EOTP correctly and complete transfer, using double OTP + argon2', async () => {
+  it('Client_Transfer_SHA256: must compute EOTP correctly and complete transfer, using double OTP + argon2', async () => {
     await transferTest({ hasher: ONEUtil.sha256b })
   })
 
-  it('Client_Transfer: must compute EOTP correctly and complete transfer, using double OTP + sha256b', async () => {
+  it('Client_Transfer_ARGON2: must compute EOTP correctly and complete transfer, using double OTP + sha256b', async () => {
     await transferTest({ hasher: ONEUtil.argon2 })
   })
 })
diff --git a/code/test/util.js b/code/test/util.js
index 44e843ef..bec88945 100644
--- a/code/test/util.js
+++ b/code/test/util.js
@@ -20,7 +20,16 @@ const createWallet = async ({ effectiveTime, duration, maxOperationsPerInterval,
   }
   effectiveTime = Math.floor(effectiveTime / INTERVAL) * INTERVAL
   const { seed, seed2, hseed, root, leaves, layers, maxOperationsPerInterval: slotSize, randomnessResults, counter } = await ONEWalletLib.computeMerkleTree({
-    otpSeed, otpSeed2, effectiveTime, maxOperationsPerInterval, duration, randomness, hasher
+    otpSeed,
+    otpSeed2,
+    effectiveTime,
+    maxOperationsPerInterval,
+    duration,
+    randomness,
+    hasher,
+    progressObserver: (i, n, s) => {
+      Logger.debug(`${((i / n) * 100).toFixed(2)}% (${i}/${n}) (Stage ${s})`)
+    }
   })
   const height = layers.length
   const t0 = effectiveTime / INTERVAL

From c6ec27b5dd0c7130000951be21bec4f926aa60ca Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Thu, 5 Aug 2021 23:05:53 -0700
Subject: [PATCH 58/59] versioned security parameters; use that everywhere
 applicable

---
 code/client/src/pages/Create.jsx  | 14 +++++++++-----
 code/client/src/pages/Restore.jsx | 15 ++++++++++-----
 code/client/src/util.js           |  3 ++-
 code/lib/config/common.js         |  6 ------
 code/lib/constants.js             |  6 +++++-
 code/lib/params.js                | 13 +++++++++++++
 code/lib/util.js                  | 22 ++++++++++++++++++++++
 7 files changed, 61 insertions(+), 18 deletions(-)
 create mode 100644 code/lib/params.js

diff --git a/code/client/src/pages/Create.jsx b/code/client/src/pages/Create.jsx
index 361ea22d..de588c32 100644
--- a/code/client/src/pages/Create.jsx
+++ b/code/client/src/pages/Create.jsx
@@ -5,6 +5,7 @@ import Paths from '../constants/paths'
 import api from '../api'
 import config from '../config'
 import ONEUtil from '../../../lib/util'
+import ONEConstants from '../../../lib/constants'
 import ONENames from '../../../lib/names'
 // import { uniqueNamesGenerator, colors, animals } from 'unique-names-generator'
 import {
@@ -102,6 +103,11 @@ const Create = () => {
 
   const otpRef = useRef()
 
+  const securityParameters = ONEUtil.securityParameters({
+    majorVersion: ONEConstants.MajorVersion,
+    minorVersion: ONEConstants.MinorVersion,
+  })
+
   const getQRCodeUri = (otpSeed, otpDisplayName) => {
     // otpauth://TYPE/LABEL?PARAMETERS
     return `otpauth://totp/${otpDisplayName}?secret=${b32.encode(otpSeed)}&issuer=Harmony`
@@ -120,7 +126,7 @@ const Create = () => {
 
   useEffect(() => {
     if (section === sectionViews.setupOtp && worker) {
-      console.log('posting to worker')
+      console.log('Posting to worker. Security parameters:', securityParameters)
       const t = Math.floor(Date.now() / WalletConstants.interval) * WalletConstants.interval
       setEffectiveTime(t)
       worker && worker.postMessage({
@@ -130,8 +136,7 @@ const Create = () => {
         duration,
         slotSize,
         interval: WalletConstants.interval,
-        randomness: util.getRandomness(),
-        hasher: config.clientSecurity.hasher,
+        ...securityParameters,
       })
     }
   }, [section, worker])
@@ -202,8 +207,7 @@ const Create = () => {
         hseed: ONEUtil.hexView(hseed),
         network,
         doubleOtp,
-        randomness: util.getRandomness(),
-        hasher: config.clientSecurity.hasher
+        ...securityParameters,
       }
       await storeLayers()
       dispatch(walletActions.updateWallet(wallet))
diff --git a/code/client/src/pages/Restore.jsx b/code/client/src/pages/Restore.jsx
index 49aac505..8017f36e 100644
--- a/code/client/src/pages/Restore.jsx
+++ b/code/client/src/pages/Restore.jsx
@@ -30,6 +30,8 @@ const Restore = () => {
   const [secret2, setSecret2] = useState()
   const [name, setName] = useState()
   const [device, setDevice] = useState()
+  const [majorVersion, setMajorVersion] = useState()
+  const [minorVersion, setMinorVersion] = useState()
   const { isMobile } = useWindowDimensions()
   const ref = useRef()
   useEffect(() => {
@@ -110,6 +112,7 @@ const Restore = () => {
       return
     }
     try {
+      const securityParameters = ONEUtil.securityParameters({ majorVersion, minorVersion })
       const worker = new Worker('ONEWalletWorker.js')
       worker.onmessage = (event) => {
         const { status, current, total, stage, result } = event.data
@@ -136,8 +139,7 @@ const Restore = () => {
             hseed: ONEUtil.hexView(hseed),
             doubleOtp,
             network,
-            randomness: util.getRandomness(),
-            hasher: config.clientSecurity.hasher,
+            ...securityParameters
           }
           dispatch(walletActions.updateWallet(wallet))
           dispatch(walletActions.fetchBalance({ address }))
@@ -154,8 +156,7 @@ const Restore = () => {
         duration,
         slotSize,
         interval: WalletConstants.interval,
-        randomness: util.getRandomness(),
-        hasher: config.clientSecurity.hasher
+        ...securityParameters
       })
     } catch (ex) {
       Sentry.captureException(ex)
@@ -184,7 +185,9 @@ const Restore = () => {
           duration,
           slotSize,
           lastResortAddress,
-          dailyLimit
+          dailyLimit,
+          majorVersion,
+          minorVersion
         } = await api.blockchain.getWallet({ address })
         console.log('Retrieved wallet:', {
           root,
@@ -202,6 +205,8 @@ const Restore = () => {
         setLastResortAddress(lastResortAddress)
         setDailyLimit(dailyLimit)
         setSection(2)
+        setMajorVersion(majorVersion)
+        setMinorVersion(minorVersion)
       } catch (ex) {
         Sentry.captureException(ex)
         console.error(ex)
diff --git a/code/client/src/util.js b/code/client/src/util.js
index 12e046ac..b599a8d9 100644
--- a/code/client/src/util.js
+++ b/code/client/src/util.js
@@ -181,7 +181,8 @@ export default {
       r -= config.clientSecurity.argon2Damping
     }
     return r
-  }
+  },
+
 }
 
 function getWindowDimensions () {
diff --git a/code/lib/config/common.js b/code/lib/config/common.js
index 31bb5851..b60d2b12 100644
--- a/code/lib/config/common.js
+++ b/code/lib/config/common.js
@@ -11,12 +11,6 @@ module.exports = {
     relayerSecret: process.env.RELAYER_SECRET || 'onewallet',
     sentryDsn: process.env.SENTRY_DSN
   },
-  clientSecurity: {
-    hasher: process.env.DEFAULT_HASHER || 'sha256',
-    baseRandomness: parseInt(process.env.BASE_RANDOMNESS || 20),
-    randomnessDamping: 2,
-    argon2Damping: 2,
-  },
   debug: DEBUG,
   networks: {
     ...(DEBUG && {
diff --git a/code/lib/constants.js b/code/lib/constants.js
index 3b4ad54b..6f999c58 100644
--- a/code/lib/constants.js
+++ b/code/lib/constants.js
@@ -17,14 +17,18 @@ module.exports = {
     TRANSFER: 4,
     SET_RECOVERY_ADDRESS: 5,
     RECOVER: 6,
+    REPLACE: 7,
     0: 'TRACK',
     1: 'UNTRACK',
     2: 'TRANSFER_TOKEN',
     3: 'OVERRIDE_TRACK',
     4: 'TRANSFER',
     5: 'SET_RECOVERY_ADDRESS',
-    6: 'RECOVER'
+    6: 'RECOVER',
+    7: 'REPLACE'
   },
   EmptyAddress: '0x0000000000000000000000000000000000000000',
   EmptyBech32Address: 'one1qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqquzw7vz',
+  MajorVersion: 8,
+  MinorVersion: 0,
 }
diff --git a/code/lib/params.js b/code/lib/params.js
new file mode 100644
index 00000000..45896604
--- /dev/null
+++ b/code/lib/params.js
@@ -0,0 +1,13 @@
+const baseParameters = {
+  hasher: process.env.DEFAULT_HASHER || 'sha256',
+  baseRandomness: parseInt(process.env.BASE_RANDOMNESS || 20),
+  randomnessDamping: parseInt(process.env.RANDOMNESS_DAMPING || 2),
+  argon2Damping: parseInt(process.env.ARGON2_DAMPING || 2),
+}
+
+module.exports = {
+  // keys: regex for version matching; values: hasher, baseRandomness, randomnessDamping, argon2Damping
+  '.*': {
+    ...baseParameters
+  }
+}
diff --git a/code/lib/util.js b/code/lib/util.js
index 0fa16e59..9bcec1fa 100644
--- a/code/lib/util.js
+++ b/code/lib/util.js
@@ -1,3 +1,5 @@
+import config from '../client/src/config'
+
 const JSSHA = require('jssha')
 const createKeccakHash = require('keccak')
 const Conversion = require('ethjs-unit')
@@ -5,6 +7,7 @@ const sha256 = require('fast-sha256')
 const BN = require('bn.js')
 const argon2 = require('argon2-browser')
 const base32 = require('hi-base32')
+const securityParams = require('./params')
 const STANDARD_DECIMAL = 18
 const PERMIT_DEPRECATED_METHOD = process.env.PERMIT_DEPRECATED_METHOD
 const utils = {
@@ -167,6 +170,25 @@ const utils = {
     if (!PERMIT_DEPRECATED_METHOD) {
       throw new Error('Deprecated')
     }
+  },
+
+  getVersion: ({ majorVersion, minorVersion }) => `${majorVersion}.${minorVersion}`,
+
+  securityParameters: ({ majorVersion, minorVersion }) => {
+    const keys = Object.keys(securityParams)
+    const v = utils.getVersion({ majorVersion, minorVersion })
+    for (let k of keys) {
+      const m = v.match(new RegExp(k))
+      if (m) {
+        const { hasher, baseRandomness, randomnessDamping, argon2Damping } = securityParams[k]
+        let r = baseRandomness - randomnessDamping
+        if (hasher === 'argon2') {
+          r -= argon2Damping
+        }
+        return { randomness: r, hasher }
+      }
+    }
+    throw new Error(`No security parameter for version ${v}`)
   }
 
 }

From cdbec6e4761ac8065f7e7c5e8d775e31e91e5196 Mon Sep 17 00:00:00 2001
From: Aaron Li <aaron@qokka.ai>
Date: Fri, 6 Aug 2021 01:06:50 -0700
Subject: [PATCH 59/59] move recoverRandomness to worker

---
 .../src/components/CommitRevealProgress.jsx   |  2 +-
 code/client/src/pages/Create.jsx              |  2 +-
 code/client/src/pages/Show.jsx                | 67 +++++++++++++++----
 code/client/src/worker/ONEWalletWorker.js     | 27 +++++++-
 code/lib/api/flow.js                          | 32 +++++----
 5 files changed, 103 insertions(+), 27 deletions(-)

diff --git a/code/client/src/components/CommitRevealProgress.jsx b/code/client/src/components/CommitRevealProgress.jsx
index 492d7ebc..a9e54592 100644
--- a/code/client/src/components/CommitRevealProgress.jsx
+++ b/code/client/src/components/CommitRevealProgress.jsx
@@ -5,7 +5,7 @@ const { Step } = Steps
 export const CommitRevealProgress = ({ stage, style }) => {
   return (
     <>
-      {stage > 0 && (
+      {stage >= 0 && (
         <Row style={style}>
           <Steps current={stage}>
             <Step title='Prepare' description='Preparing signature' />
diff --git a/code/client/src/pages/Create.jsx b/code/client/src/pages/Create.jsx
index de588c32..5a5dd3a2 100644
--- a/code/client/src/pages/Create.jsx
+++ b/code/client/src/pages/Create.jsx
@@ -224,7 +224,7 @@ const Create = () => {
   }
 
   useEffect(() => {
-    const worker = new Worker('ONEWalletWorker.js')
+    const worker = new Worker('/ONEWalletWorker.js')
     worker.onmessage = (event) => {
       const { status, current, total, stage, result } = event.data
       if (status === 'working') {
diff --git a/code/client/src/pages/Show.jsx b/code/client/src/pages/Show.jsx
index 6ecd01ed..339e5735 100644
--- a/code/client/src/pages/Show.jsx
+++ b/code/client/src/pages/Show.jsx
@@ -52,10 +52,33 @@ const Show = () => {
 
   const wallet = wallets[address] || {}
   const [section, setSection] = useState(action)
-  const [stage, setStage] = useState(0)
+  const [stage, setStage] = useState(-1)
   const network = useSelector(state => state.wallet.network)
   const [activeTab, setActiveTab] = useState('coins')
   const walletOutdated = util.isWalletOutdated(wallet)
+  const [worker, setWorker] = useState()
+  const workerRef = useRef({ promise: null }).current
+  const resetWorkerPromise = (newWorker) => {
+    workerRef.promise = new Promise((resolve, reject) => {
+      newWorker.onmessage = (event) => {
+        const { status, error, result } = event.data
+        // console.log('Received: ', { status, result, error })
+        if (status === 'rand') {
+          const { rand } = result
+          resolve(rand)
+        } else if (status === 'error') {
+          reject(error)
+        }
+      }
+    })
+  }
+  useEffect(() => {
+    const worker = new Worker('/ONEWalletWorker.js')
+    setWorker(worker)
+  }, [])
+  useEffect(() => {
+    worker && resetWorkerPromise(worker)
+  }, [worker])
 
   useEffect(() => {
     if (!wallet) {
@@ -160,7 +183,7 @@ const Show = () => {
   }
 
   const restart = () => {
-    setStage(0)
+    setStage(-1)
     resetOtp()
     setInputAmount(0)
   }
@@ -219,26 +242,26 @@ const Show = () => {
     Sentry.captureException(ex)
     console.error(ex)
     message.error('Failed to commit. Error: ' + ex.toString())
-    setStage(0)
+    setStage(-1)
     resetOtp()
   }
 
   const onCommitFailure = (error) => {
     message.error(`Cannot commit transaction. Reason: ${error}`)
-    setStage(0)
+    setStage(-1)
     resetOtp()
   }
 
   const onRevealFailure = (error) => {
     message.error(`Transaction Failed: ${error}`)
-    setStage(0)
+    setStage(-1)
     resetOtp()
   }
 
   const onRevealError = (ex) => {
     Sentry.captureException(ex)
     message.error(`Failed to finalize transaction. Error: ${ex.toString()}`)
-    setStage(0)
+    setStage(-1)
     resetOtp()
   }
 
@@ -257,18 +280,35 @@ const Show = () => {
     setTimeout(restart, 3000)
   }
 
-  const doSend = async () => {
+  const prepareProofFailed = () => {
+    setStage(-1)
+    resetOtp()
+    resetWorkerPromise(worker)
+  }
+
+  const doSend = () => {
     const { otp, otp2, invalidOtp2, invalidOtp, dest, amount } = prepareValidation() || {}
 
     if (invalidOtp || !dest || invalidOtp2) return
 
+    const recoverRandomness = async (args) => {
+      worker && worker.postMessage({
+        action: 'recoverRandomness',
+        ...args
+      })
+      return workerRef.promise
+    }
+
     if (selectedToken.key === 'one') {
       SmartFlows.commitReveal({
         wallet,
         otp,
         otp2,
+        recoverRandomness,
+        prepareProofFailed,
         commitHashGenerator: ONE.computeTransferHash,
         commitHashArgs: { dest, amount },
+        prepareProof: () => setStage(0),
         beforeCommit: () => setStage(1),
         afterCommit: () => setStage(2),
         onCommitError,
@@ -288,6 +328,8 @@ const Show = () => {
         wallet,
         otp,
         otp2,
+        recoverRandomness,
+        prepareProofFailed,
         commitHashGenerator: ONE.computeTokenOperationHash,
         commitHashArgs: { dest, amount, operationType: ONEConstants.OperationType.TRANSFER_TOKEN, tokenType: selectedToken.tokenType, contractAddress: selectedToken.contractAddress, tokenId: selectedToken.tokenId },
         beforeCommit: () => setStage(1),
@@ -359,6 +401,7 @@ const Show = () => {
       }
     })
   }
+
   const { isMobile } = useWindowDimensions()
   // UI Rendering below
   if (!wallet || wallet.network !== network) {
@@ -562,9 +605,9 @@ const Show = () => {
         </Space>
         <Row justify='end' style={{ marginTop: 24 }}>
           <Space>
-            {stage > 0 && stage < 3 && <LoadingOutlined />}
+            {stage >= 0 && stage < 3 && <LoadingOutlined />}
             {stage === 3 && <CheckCircleOutlined />}
-            <Button type='primary' size='large' shape='round' disabled={stage > 0} onClick={doSend}>Send</Button>
+            <Button type='primary' size='large' shape='round' disabled={stage >= 0} onClick={doSend}>Send</Button>
           </Space>
         </Row>
         <CommitRevealProgress stage={stage} style={{ marginTop: 32 }} />
@@ -584,7 +627,7 @@ const Show = () => {
               <Text>Do you want to proceed?</Text>
             </Space>
             <Row justify='end' style={{ marginTop: 48 }}>
-              <Button type='primary' size='large' shape='round' disabled={stage > 0} onClick={doRecovery}>Sounds good!</Button>
+              <Button type='primary' size='large' shape='round' disabled={stage >= 0} onClick={doRecovery}>Sounds good!</Button>
             </Row>
             <CommitRevealProgress stage={stage} style={{ marginTop: 32 }} />
           </>}
@@ -639,8 +682,8 @@ const Show = () => {
         </Space>
         <Row justify='end' style={{ marginTop: 24 }}>
           <Space>
-            {stage > 0 && stage < 3 && <LoadingOutlined />}
-            <Button type='primary' size='large' shape='round' disabled={stage > 0} onClick={doSetRecoveryAddress}>Set</Button>
+            {stage >= 0 && stage < 3 && <LoadingOutlined />}
+            <Button type='primary' size='large' shape='round' disabled={stage >= 0} onClick={doSetRecoveryAddress}>Set</Button>
           </Space>
         </Row>
         <CommitRevealProgress stage={stage} style={{ marginTop: 32 }} />
diff --git a/code/client/src/worker/ONEWalletWorker.js b/code/client/src/worker/ONEWalletWorker.js
index 02724c12..a43374f5 100644
--- a/code/client/src/worker/ONEWalletWorker.js
+++ b/code/client/src/worker/ONEWalletWorker.js
@@ -1,8 +1,33 @@
 const ONE = require('../../../lib/onewallet')
 const ONEUtil = require('../../../lib/util')
 
+async function recoverRandomness ({ randomness, hseed, otp, otp2, nonce, leaf, hasher }) {
+  const encodedOtp = ONEUtil.encodeNumericalOtp(otp)
+  const encodedOtp2 = otp2 !== undefined ? ONEUtil.encodeNumericalOtp(otp2) : undefined
+  try {
+    const rand = await ONE.recoverRandomness({
+      randomness,
+      hseed: ONEUtil.hexToBytes(hseed),
+      otp: encodedOtp,
+      otp2: encodedOtp2,
+      nonce,
+      leaf,
+      hasher: ONEUtil.getHasher(hasher)
+    })
+    postMessage({ status: 'rand', result: { rand } })
+  } catch (ex) {
+    console.error(ex)
+    postMessage({ status: 'error', result: { error: ex.toString() } })
+  }
+}
+
 onmessage = async function (event) {
-  const { seed, seed2, effectiveTime, duration, slotSize, interval, randomness, hasher } = event.data
+  const { seed, seed2, effectiveTime, duration, slotSize, interval, randomness, hasher, action } = event.data
+
+  if (action === 'recoverRandomness') {
+    return recoverRandomness(event.data)
+  }
+
   if (!seed) {
     // console.log('worker: received event but it has no valid data', event)
     return
diff --git a/code/lib/api/flow.js b/code/lib/api/flow.js
index 4e9c17be..988b3490 100644
--- a/code/lib/api/flow.js
+++ b/code/lib/api/flow.js
@@ -51,7 +51,8 @@ const Flows = {
   commitReveal: async ({
     otp, otp2, eotpBuilder = EotpBuilders.fromOtp,
     committer = Committer.legacy,
-    wallet, layers, commitHashGenerator, commitHashArgs,
+    recoverRandomness,
+    wallet, layers, commitHashGenerator, commitHashArgs, prepareProof, prepareProofFailed,
     beforeCommit, afterCommit, onCommitError, onCommitFailure,
     revealAPI, revealArgs, onRevealFailure, onRevealSuccess, onRevealError, onRevealAttemptFailed,
     beforeReveal, index,
@@ -66,6 +67,7 @@ const Flows = {
         return
       }
     }
+    prepareProof && prepareProof()
     index = index || ONEUtil.timeToIndex({ effectiveTime })
     if (index < 0) {
       index = layers[0].length / 32 - 1
@@ -73,20 +75,26 @@ const Flows = {
     let nonce // should get from blockchain, but omitted for now because all wallets have maxOperationsPerInterval set to 1.
     let rand
     if (randomness > 0) {
-      const encodedOtp = ONEUtil.encodeNumericalOtp(otp)
-      const encodedOtp2 = otp2 ? ONEUtil.encodeNumericalOtp(otp2) : undefined
-      rand = await ONE.recoverRandomness({
-        randomness,
-        hseed: ONEUtil.hexToBytes(hseed),
-        otp: encodedOtp,
-        otp2: encodedOtp2,
-        nonce,
-        leaf: layers[0].subarray(index * 32, index * 32 + 32),
-        hasher: ONEUtil.getHasher(hasher)
-      })
+      const leaf = layers[0].subarray(index * 32, index * 32 + 32)
+      if (recoverRandomness) {
+        rand = await recoverRandomness({ randomness, hseed, otp, otp2, nonce, leaf, hasher })
+      } else {
+        const encodedOtp = ONEUtil.encodeNumericalOtp(otp)
+        const encodedOtp2 = otp2 ? ONEUtil.encodeNumericalOtp(otp2) : undefined
+        rand = await ONE.recoverRandomness({
+          randomness,
+          hseed: ONEUtil.hexToBytes(hseed),
+          otp: encodedOtp,
+          otp2: encodedOtp2,
+          nonce,
+          leaf,
+          hasher: ONEUtil.getHasher(hasher)
+        })
+      }
       // console.log({ rand })
       if (rand === null) {
         message.error('Failed to decrypt proof. Code might be incorrect')
+        prepareProofFailed && prepareProofFailed()
         return
       }
     }