code: func (b *DispatcherBatch) Add(funcName string, request interface{}) *BatchResult {
  	return b.add(funcName, request, false)
  }
docs: // Add ads new request to the RPC batch.
  //
  // The order of batched RPCs execution on the server is unspecified.
  //
  // All the requests added to the batch are sent to the server at once
  // when DispatcherBatch.Call*() is called.
  //
  // All the non-internal request and response types must be registered
  // via RegisterType() before the first call to this function.
  //
  // It is safe adding multiple requests to the same batch from concurrently
  // running goroutines.