return candidate;
}

absl::StatusOr<Node*> CloneConstantsForBetterClusteringPassImpl::CloneNode(
    const absl::flat_hash_set<string>& name_set, Node* n) {
  NodeDef new_in_def = n->def();
  new_in_def.clear_input();
  new_in_def.set_name(GenerateUniqueName(name_set, new_in_def.name()));
  TF_ASSIGN_OR_RETURN(Node * new_in, graph_->AddNode(new_in_def));

  for (const Edge* e : n->in_edges()) {
    if (e->IsControlEdge()) {