try fixing type checks

Author: jorisvandenbossche

pandas/tests/frame/test_subclass.py

@@ -755,7 +755,7 @@ def __init__(self, *args, **kwargs) -> None:
 
         my_metadata = kwargs.pop("my_metadata", None)
         if args and isinstance(args[0], MySubclassWithMetadata):
-            my_metadata = args[0].my_metadata
+            my_metadata = args[0].my_metadata  # type: ignore[has-type]
         self.my_metadata = my_metadata
 
     @property