code: func (s *MockSchemaSyncer) OwnerUpdateGlobalVersion(ctx context.Context, version int64) error {
  	select {
  	case s.globalVerCh <- clientv3.WatchResponse{}:
  	default:
  	}
  	return nil
  }
docs: // OwnerUpdateGlobalVersion implements SchemaSyncer.OwnerUpdateGlobalVersion interface.