def serialized(self):
        to_ret = {}
        for group, requirements in self.items():
            to_ret[group] = [str(requirement) for requirement in requirements]
        return to_ret
def __init__(self, queue, level, formatter):
        super(QueueingLogHandler, self).__init__()
        self._queue = queue
        self.setLevel(level)
        self.setFormatter(formatter)