From b1e7325e27fcc6bc33907cc5803fd79cc7faf9ab Mon Sep 17 00:00:00 2001
From: bswck <bswck.dev@gmail.com>
Date: Wed, 7 Feb 2024 18:23:41 +0100
Subject: [PATCH] Use `Protocol[_T]` as `_ClassPropertyAttribute` base

---
 jaraco/classes/properties.py | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/jaraco/classes/properties.py b/jaraco/classes/properties.py
index 87d11a3..c0c49be 100644
--- a/jaraco/classes/properties.py
+++ b/jaraco/classes/properties.py
@@ -3,12 +3,10 @@
 from typing import TYPE_CHECKING, Generic, TypeVar, cast, overload
 
 _T = TypeVar("_T")
-_T_co = TypeVar("_T_co", covariant=True)
-_T_contra = TypeVar("_T_contra", contravariant=True)
 
 if TYPE_CHECKING:
     from collections.abc import Callable
-    from typing import Any
+    from typing import Any, Protocol
 
     from typing_extensions import Self, TypeAlias
 
@@ -20,7 +18,7 @@
     _SetterCallable: TypeAlias = Callable[[type[Any], _T], None]
     _SetterClassMethod: TypeAlias = classmethod[Any, [_T], None]
 
-    class _ClassPropertyAttribute(Generic[_T]):
+    class _ClassPropertyAttribute(Protocol[_T]):
         def __get__(self, obj: object, objtype: type[Any] | None = None) -> _T: ...
         def __set__(self, obj: object, value: _T) -> None: ...