/// status().
  // TODO(skyewm): NodeBuilder is not part of public API
  void UpdateBuilder(NodeBuilder* builder) const;
  // END_SKIP_DOXYGEN

  CompositeOpScopes GetCompositeOpScopes(const string& composite_op_name) const;

  bool ok() const;

  // TODO(skyewm): Graph is not part of public API
  Graph* graph() const;

  // TODO(skyewm): Graph is not part of public API

}

Scope Scope::WithKernelLabel(const string& kernel_label) const {
  return Scope(new Impl(*this, Impl::Tags::KernelLabel(), kernel_label));
}

CompositeOpScopes Scope::GetCompositeOpScopes(
    const string& composite_op_name) const {
  if (impl()->op_name_.empty() && composite_op_name.empty()) {
    UpdateStatus(errors::InvalidArgument(
        "Cannot create composite op scopes with empty name"));