tsconfig.json

{
  "compilerOptions": {
    "target": "es5",
    "lib": ["esnext"],
    "noErrorTruncation": false,
    "skipLibCheck": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "strict": true,
    "strictNullChecks": true,
    "noUncheckedIndexedAccess": true,
    "exactOptionalPropertyTypes": true,
    "useUnknownInCatchVariables": true,
    "noPropertyAccessFromIndexSignature": true,
    "noImplicitThis": true,
    "noImplicitAny": true,
    "forceConsistentCasingInFileNames": true,
    "module": "commonjs",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "typeRoots": ["./node_modules/@types", "types"],
    "downlevelIteration": true,
    "declaration": true,
    "outDir": "./lib"
  },
  "include": ["src"],
  "exclude": ["node_modules", "**/__tests__/*"]
}