Remove optionality of list[InferenceResult]

jacobtylerwalls · web-flow · commit a79a2a74af44 · 2023-05-06T10:48:52.000-04:00
diff --git a/astroid/inference_tip.py b/astroid/inference_tip.py
@@ -22,7 +22,7 @@
 _P = ParamSpec("_P")
 
 _cache: dict[
-    tuple[InferFn, NodeNG, InferenceContext | None], list[InferenceResult] | None
+    tuple[InferFn, NodeNG, InferenceContext | None], list[InferenceResult]
 ] = {}
 
 _CURRENTLY_INFERRING: set[tuple[InferFn, NodeNG]] = set()
