builder.create<TF::NoOp>(loc);
  builder.create<tf_executor::YieldOp>(loc);

  return wrapper_island_op;
}

// Adds a new fetch operand for the main function's GraphOp.
void AddFetchOperandToMain(GraphOp main_graph_op, const Value fetch_operand) {
  FetchOp old_fetch = main_graph_op.GetFetch();
  const absl::Cleanup erase_old_fetch = [old_fetch]() mutable {
    old_fetch.erase();
  };