[typing] Deprecate no_type_check_decorator (#15048)

Author: donbarbos

stdlib/typing.pyi

@@ -408,7 +408,13 @@ _TC = TypeVar("_TC", bound=type[object])
 
 def overload(func: _F) -> _F: ...
 def no_type_check(arg: _F) -> _F: ...
-def no_type_check_decorator(decorator: Callable[_P, _T]) -> Callable[_P, _T]: ...
+
+if sys.version_info >= (3, 13):
+    @deprecated("Deprecated since Python 3.13; removed in Python 3.15.")
+    def no_type_check_decorator(decorator: Callable[_P, _T]) -> Callable[_P, _T]: ...
+
+else:
+    def no_type_check_decorator(decorator: Callable[_P, _T]) -> Callable[_P, _T]: ...
 
 # This itself is only available during type checking
 def type_check_only(func_or_cls: _FT) -> _FT: ...
@@ -1000,9 +1006,7 @@ class NamedTuple(tuple[Any, ...]):
     @overload
     def __init__(self, typename: str, fields: Iterable[tuple[str, Any]], /) -> None: ...
     @overload
-    @typing_extensions.deprecated(
-        "Creating a typing.NamedTuple using keyword arguments is deprecated and support will be removed in Python 3.15"
-    )
+    @deprecated("Creating a typing.NamedTuple using keyword arguments is deprecated and support will be removed in Python 3.15")
     def __init__(self, typename: str, fields: None = None, /, **kwargs: Any) -> None: ...
     @classmethod
     def _make(cls, iterable: Iterable[Any]) -> typing_extensions.Self: ...