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class QueuePropertyMixin(object):
    def _queue_getter(self):
        # Import at runtime to avoid circular imports
        from model.queues import Queue
        return Queue.queue_with_name(self.queue_name)

    def _queue_setter(self, queue):
        self.queue_name = queue.name() if queue else None

    queue = property(_queue_getter, _queue_setter)