From f1f3c128011a6a1c223561c457a44625091a324c Mon Sep 17 00:00:00 2001
From: Carl Meyer <carl@oddbird.net>
Date: Mon, 6 Oct 2025 13:57:15 -0700
Subject: [PATCH] TypeAliasType type_params accepts typing_extensions.TypeVar
 also (#14840)

---
 stdlib/typing.pyi | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/stdlib/typing.pyi b/stdlib/typing.pyi
index ca25c92d5..9c18c879e 100644
--- a/stdlib/typing.pyi
+++ b/stdlib/typing.pyi
@@ -1136,7 +1136,21 @@ if sys.version_info >= (3, 12):
     def override(method: _F, /) -> _F: ...
     @final
     class TypeAliasType:
-        def __new__(cls, name: str, value: Any, *, type_params: tuple[TypeVar | ParamSpec | TypeVarTuple, ...] = ()) -> Self: ...
+        def __new__(
+            cls,
+            name: str,
+            value: Any,
+            *,
+            type_params: tuple[
+                TypeVar
+                | typing_extensions.TypeVar
+                | ParamSpec
+                | typing_extensions.ParamSpec
+                | TypeVarTuple
+                | typing_extensions.TypeVarTuple,
+                ...,
+            ] = (),
+        ) -> Self: ...
         @property
         def __value__(self) -> Any: ...  # AnnotationForm
         @property