fixed another styling error

kkieu · kkieu · commit abb529ed44b4 · 2025-10-26T18:33:31.000+11:00
diff --git a/tests/core/test_core.py b/tests/core/test_core.py
@@ -594,7 +594,7 @@ def test_show_typing_notification(
         # Control sleep so loop runs predictably
         sleep_calls = 0
 
-        def fake_sleep(_):
+        def fake_sleep(_: float) -> None:
             nonlocal sleep_calls
             sleep_calls += 1
             if sleep_calls == 2:
