def only_once(handler_id):
"""
Check if handler has already been run in the past.
"""
return not helpers.was_invoked(handler_id)
def wrapper(*args, **kwargs):
action_id = _action_id(action)
if not was_invoked(action_id):
action(*args, **kwargs)
mark_invoked(action_id)
def wrapper(*args, **kwargs):
action_id = _action_id(action)
if not was_invoked(action_id):
action(*args, **kwargs)
mark_invoked(action_id)