code: def atlas_zonefile_push_dequeue( zonefile_queue=None ):
      
      ret = None
      with AtlasZonefileQueueLocked(zonefile_queue) as zfq:
          if len(zfq) > 0:
              ret = zfq.pop(0)
  
      return ret
docs: Dequeue a zonefile's information to replicate
      Return None if there are none queued