change type of name to Label

Author: topper-123

pandas/core/indexes/base.py

@@ -830,7 +830,7 @@ def copy(self, name=None, deep=False, dtype=None, names=None):
 
         Parameters
         ----------
-        name : Optional[Hashable]
+        name : Label
         deep : bool, default False
         dtype : numpy dtype or pandas type, optional
         names : list-like, optional

pandas/core/indexes/multi.py

@@ -1014,7 +1014,7 @@ def copy(
         levels : sequence, optional
         codes : sequence, optional
         deep : bool, default False
-        name : Optional[Hashable]
+        name : Label
             Kept for compatibility with 1-dimensional Index. Should not be used.
 
         Returns