TYP: use Shape alias in core/arrays/base.py

Author: arw2019

pandas/core/arrays/base.py

@@ -12,7 +12,7 @@
 import numpy as np
 
 from pandas._libs import lib
-from pandas._typing import ArrayLike
+from pandas._typing import ArrayLike, Shape
 from pandas.compat import set_function_name
 from pandas.compat.numpy import function as nv
 from pandas.errors import AbstractMethodError
@@ -403,7 +403,7 @@ def dtype(self) -> ExtensionDtype:
         raise AbstractMethodError(self)
 
     @property
-    def shape(self) -> Tuple[int, ...]:
+    def shape(self) -> Shape:
         """
         Return a tuple of the array dimensions.
         """