code: func (dc *DispatcherClient) NewBatch() *DispatcherBatch {
  	return &DispatcherBatch{
  		c: dc,
  		b: dc.c.NewBatch(),
  	}
  }
docs: // NewBatch creates new RPC batch for the given DispatcherClient.
  //
  // It is safe creating multiple concurrent batches from a single client.