for (const auto* edge : oper_out.oper->node.out_edges()) {
    if (edge->src_output() == oper_out.index) {
      ++count;
    }
  }
  return count;
}

int TF_OperationOutputConsumers(TF_Output oper_out, TF_Input* consumers,
                                int max_consumers) {
  int count = 0;
  for (const auto* edge : oper_out.oper->node.out_edges()) {
    if (edge->src_output() == oper_out.index) {