parameters: (self, _=None)
docstring: If alive then mark as dead and return func(*args, **kwargs);
          otherwise return None
docstring_summary: If alive then mark as dead and return func(*args, **kwargs);
          otherwise return None
docstring_tokens: If alive then mark as dead and return func ( * args ** kwargs ) ; otherwise return None
function: def __call__(self, _=None):
          """If alive then mark as dead and return func(*args, **kwargs);
          otherwise return None"""
          info = self._registry.pop(self, None)
          if info and not self._shutdown:
              return info.func(*info.args, **(info.kwargs or {}))
function_tokens: def __call__ ( self , _ = None ) : info = self . _registry . pop ( self , None ) if info and not self . _shutdown : return info . func ( * info . args , * * ( info . kwargs or { } ) )