code: def sync_maps(self):
          
          if self._sync_maps is None:
              self._sync_maps = SyncMapList(self._version, service_sid=self._solution['sid'], )
          return self._sync_maps
docs: Access the sync_maps
  
          :returns: twilio.rest.sync.v1.service.sync_map.SyncMapList
          :rtype: twilio.rest.sync.v1.service.sync_map.SyncMapList