From 04d81a8499b500847c2dc0e646179647b385d329 Mon Sep 17 00:00:00 2001
From: Sebastian Speitel <sebastian.speitel@outlook.de>
Date: Wed, 16 Jun 2021 15:03:15 +0200
Subject: [PATCH] Allow merging dicts of different types (#5520)

---
 stdlib/builtins.pyi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/stdlib/builtins.pyi b/stdlib/builtins.pyi
index 80e04e215..de7194ed7 100644
--- a/stdlib/builtins.pyi
+++ b/stdlib/builtins.pyi
@@ -826,9 +826,9 @@ class dict(MutableMapping[_KT, _VT], Generic[_KT, _VT]):
     __hash__: None  # type: ignore
     if sys.version_info >= (3, 9):
         def __class_getitem__(cls, item: Any) -> GenericAlias: ...
-        def __or__(self, __value: Mapping[_KT, _VT]) -> Dict[_KT, _VT]: ...
-        def __ror__(self, __value: Mapping[_KT, _VT]) -> Dict[_KT, _VT]: ...
-        def __ior__(self, __value: Mapping[_KT, _VT]) -> Dict[_KT, _VT]: ...
+        def __or__(self, __value: Mapping[_T1, _T2]) -> Dict[Union[_KT, _T1], Union[_VT, _T2]]: ...
+        def __ror__(self, __value: Mapping[_T1, _T2]) -> Dict[Union[_KT, _T1], Union[_VT, _T2]]: ...
+        def __ior__(self, __value: Mapping[_KT, _VT]) -> Dict[_KT, _VT]: ...  # type: ignore
 
 class set(MutableSet[_T], Generic[_T]):
     def __init__(self, iterable: Iterable[_T] = ...) -> None: ...