def get_waiting_keys(cls, names):
        """
        Return a list of all queue waiting keys, to use with blpop
        """
        return [queue.waiting.key for queue in cls.get_all_by_priority(names)]
def get_waiting_keys ( cls , names ) : return [ queue . waiting . key for queue in cls . get_all_by_priority ( names ) ]
Return a list of all queue waiting keys, to use with blpop