Add generic aliases for collection types

Author: KotlinIsland

basedtyping/__init__.py

@@ -4,6 +4,7 @@
 
 import contextlib
 import sys
+import typing
 from typing import (
     TYPE_CHECKING,
     Any,
@@ -21,6 +22,7 @@
     cast,
 )
 
+import _collections_abc
 import typing_extensions
 from typing_extensions import Never, ParamSpec, TypeAlias, TypeGuard, TypeVarTuple
 
@@ -525,3 +527,15 @@ def Intersection(self, parameters):
         Intersection = _BasedSpecialForm("Intersection", doc="")
 else:
     Intersection: _SpecialForm
+
+# generic aliases
+dict_keyiterator = typing._alias(_collections_abc.dict_keyiterator, 2)
+dict_valueiterator = typing._alias(_collections_abc.dict_valueiterator, 2)
+dict_itemiterator = typing._alias(_collections_abc.dict_itemiterator, 2)
+list_iterator = typing._alias(_collections_abc.list_iterator, 1)
+list_reverseiterator = typing._alias(_collections_abc.list_reverseiterator, 1)
+set_iterator = typing._alias(_collections_abc.set_iterator, 1)
+tuple_iterator = typing._alias(_collections_abc.tuple_iterator, -1)
+dict_keys = typing._alias(_collections_abc.dict_keys, 2)
+dict_values = typing._alias(_collections_abc.dict_values, 2)
+dict_items = typing._alias(_collections_abc.dict_items, 2)