code: def get_all_queues(self):
          
          resp = self._call('getAllQueues', proto.Empty())
          return [Queue.from_protobuf(q) for q in resp.queues]
docs: Get information about all queues in the cluster.
  
          Returns
          -------
          queues : list of Queue
  
          Examples
          --------
          >>> client.get_all_queues()
          [Queue<name='default', percent_used=0.00>,
           Queue<name='myqueue', percent_used=5.00>,
           Queue<name='child1', percent_used=10.00>,
           Queue<name='child2', percent_used=0.00>]