1  from typing import Any, Callable
   2  
   3  def _clear() -> None: ...
   4  def _ncallbacks() -> int: ...
   5  def _run_exitfuncs() -> None: ...
   6  def register(func: Callable[..., Any], *args: Any, **kwargs: Any) -> Callable[..., Any]: ...
   7  def unregister(func: Callable[..., Any]) -> None: ...
   8