From 1dfd00bc89b219e4dc7f8a364791a45740d40b11 Mon Sep 17 00:00:00 2001
From: Paul Natsuo Kishimoto <mail@paul.kishimoto.name>
Date: Wed, 20 Apr 2022 14:11:53 +0200
Subject: [PATCH] Remove unused check in Computer.infer_keys()

---
 genno/core/computer.py | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/genno/core/computer.py b/genno/core/computer.py
index 531c634e..5607204f 100644
--- a/genno/core/computer.py
+++ b/genno/core/computer.py
@@ -546,9 +546,6 @@ def infer_keys(
 
         result = list(map(partial(self.graph.infer, dims=dims), keys))
 
-        if None in result:
-            raise KeyError(keys[result.index(None)])
-
         return result[0] if single else tuple(result)
 
     def __contains__(self, item):