code: def fire(self, event, *args, **kwargs):
          
          if not self._maybe_create_on_fire(event):
              return
          return self[event].fire(*args, **kwargs)
docs: Fire event. call event's handlers using given arguments, return a list of results.
  
          :param str name: Event name
          :param tuple args: positional arguments to call each handler with
          :param dict kwargs: keyword arguments to call each handler with
          :return list: a list of tuples of handler, return value