TYP: positional-only __class_getitem__ parameters

Author: jorenham

numpy/__init__.pyi

@@ -815,7 +815,7 @@ class dtype(Generic[_DTypeScalar_co]):
         metadata: dict[builtins.str, Any] = ...,
     ) -> dtype[object_]: ...
 
-    def __class_getitem__(self, item: Any) -> GenericAlias: ...
+    def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
     @overload
     def __getitem__(self: dtype[void], key: list[builtins.str], /) -> dtype[void]: ...
@@ -1466,7 +1466,7 @@ class ndarray(_ArrayOrScalarCommon, Generic[_ShapeType, _DType_co]):
     if sys.version_info >= (3, 12):
         def __buffer__(self, flags: int, /) -> memoryview: ...
 
-    def __class_getitem__(self, item: Any) -> GenericAlias: ...
+    def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
 
     @overload
     def __array__(
@@ -2767,7 +2767,7 @@ class number(generic, Generic[_NBit1]):  # type: ignore
     def real(self: _ArraySelf) -> _ArraySelf: ...
     @property
     def imag(self: _ArraySelf) -> _ArraySelf: ...
-    def __class_getitem__(self, item: Any) -> GenericAlias: ...
+    def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...
     def __int__(self) -> int: ...
     def __float__(self) -> float: ...
     def __complex__(self) -> complex: ...