--- /dev/null
+from typing import Any, Tuple, Type, TypeVar
+
+_T = TypeVar("_T")
+
+# TODO: Change the return into a NewType bound to int after pytype/#597
+def get_cache_token() -> object: ...
+
+class ABCMeta(type):
+ def __new__(__mcls, __name: str, __bases: Tuple[Type[Any], ...], __namespace: dict[str, Any]) -> ABCMeta: ...
+ def register(cls, subclass: Type[_T]) -> Type[_T]: ...