correct typing for is_copy arg

Author: ryankarlos

pandas/core/generic.py

@@ -3263,7 +3263,7 @@ def _clear_item_cache(self) -> None:
     # Indexing Methods
 
     def take(
-        self: FrameOrSeries, indices, axis=0, is_copy: bool_t = None, **kwargs
+        self: FrameOrSeries, indices, axis=0, is_copy: Optional[bool_t] = None, **kwargs
     ) -> FrameOrSeries:
         """
         Return the elements in the given *positional* indices along an axis.