Method node

tensorflow/cc/framework/ops.h:236–236

      : node_name_(name), index_(i), data_type_(dt) {}

  Node* node() const { return output_.node(); }
  string node_name() const { return node_name_; }
  int32 index() const { return node_name_.empty() ? output_.index() : index_; }
  DataType data_type() const { return data_type_; }