event.py 文件源码

def add_event(self, func, name: str = None):
        """
        Add an event to the internal registry of events.

        :param name: The event name to register under.
        :param func: The function to add.
        """
        if not inspect.iscoroutinefunction(func):
            raise TypeError("Event must be a coroutine function")

        if name is None:
            evs = func.events
        else:
            evs = [name]

        for ev_name in evs:
            logger.debug("Registered event `{}` handling `{}`".format(func, ev_name))
            self.event_listeners.add(ev_name, func)