if (device_.empty()) {
    device_ = node->assigned_device_name().empty()
                  ? node->requested_device()
                  : node->assigned_device_name();
  }

  return graph_->CopyNode(node);
}

Graph* Encapsulator::Subgraph::GetGraph() const { return graph_.get(); }

Status Encapsulator::Subgraph::RecordArg(
    const Edge* edge,