code: def _get_bridge_name(self):
          
          command = ovs_vsctl.VSCtlCommand(
              'find',
              ('Bridge',
               'datapath_id=%s' % dpid_lib.dpid_to_str(self.datapath_id)))
          self.run_command([command])
          if not isinstance(command.result, list) or len(command.result) != 1:
              raise OVSBridgeNotFound(
                  datapath_id=dpid_lib.dpid_to_str(self.datapath_id))
          return command.result[0].name
docs: get Bridge name of a given 'datapath_id'