Cleaned up array/ type hints

Author: gwrome

pandas/core/arrays/array_.py

@@ -13,7 +13,7 @@
 
 
 def array(data: Sequence[object],
-          dtype: Optional[Union[str, np.dtype, ExtensionDtype]] = None,
+          dtype: Optional[str, np.dtype, ExtensionDtype] = None,
           copy: bool = True,
           ) -> ExtensionArray:
     """

pandas/core/arrays/base.py

@@ -726,7 +726,7 @@ def take(
             self,
             indices: Sequence[int],
             allow_fill: bool = False,
-            fill_value: Optional[Any] = None
+            fill_value: Any = None
     ) -> 'ExtensionArray':
         """
         Take elements from an array.

pandas/core/arrays/sparse.py

@@ -402,7 +402,8 @@ def _get_fill(arr: 'SparseArray') -> np.ndarray:
 def _sparse_array_op(
         left: 'SparseArray',
         right: 'SparseArray',
-        op: Callable, name: str
+        op: Callable,
+        name: str
 ) -> Any:
     """
     Perform a binary operation between two arrays.