Improve type annotations for the helper methods on a CachedFunction. (#14685)

reivilibre · web-flow · commit 864c3f85b0c4 · 2022-12-16T13:04:54.000Z
diff --git a/changelog.d/14685.misc b/changelog.d/14685.misc
@@ -0,0 +1 @@
+Improve type annotations for the helper methods on a `CachedFunction`.
diff --git a/synapse/util/caches/descriptors.py b/synapse/util/caches/descriptors.py
@@ -53,9 +53,9 @@
 
 
 class CachedFunction(Generic[F]):
-    invalidate: Any = None
-    invalidate_all: Any = None
-    prefill: Any = None
+    invalidate: Callable[[Tuple[Any, ...]], None]
+    invalidate_all: Callable[[], None]
+    prefill: Callable[[Tuple[Any, ...], Any], None]
     cache: Any = None
     num_args: Any = None
 

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	+Improve type annotations for the helper methods on a `CachedFunction`.