std::unique_ptr<WritableFile> fuzz_file = nullptr;
  for (const OpDef& op_def : ops.op()) {
    if (std::find(op_names.begin(), op_names.end(), op_def.name()) ==
        op_names.end())
      continue;

    const ApiDef* api_def = api_def_map->GetApiDef(op_def.name());
    if (api_def == nullptr) {
      continue;
    }

    OpInfo op_info(op_def, *api_def, std::vector<string>());
    status.Update(env->NewWritableFile(