if (*function == nullptr) {
    return errors::NotFound("No function found at path ", function_path);
  }

  return Status();
}

Status TFSavedModelAPI::GetFunctions(
    int node_id,
    absl::flat_hash_map<std::string, ConcreteFunction*>* functions) {
  const auto& nodes = bundle_.saved_object_graph().nodes();
  if (node_id >= nodes.size()) {
    return errors::OutOfRange(