if (devices.empty()) {
    return errors::NotFound(
        "Failed to create a CPU device for EncapsulateSubgraphsPass");
  }

  std::unique_ptr<DeviceMgr> device_mgr =
      std::make_unique<StaticDeviceMgr>(std::move(devices));
  const auto* config = &options.session_options->config;
  std::unique_ptr<ProcessFunctionLibraryRuntime> pflr(
      new ProcessFunctionLibraryRuntime(

  std::vector<std::unique_ptr<Device>> devices;
  TF_CHECK_OK(DeviceFactory::AddDevices(
      session_options, "/job:localhost/replica:0/task:0", &devices));
  OptimizerOptions opts;
  auto device_mgr = std::make_unique<StaticDeviceMgr>(std::move(devices));
  auto pflr = std::make_unique<ProcessFunctionLibraryRuntime>(
      device_mgr.get(), Env::Default(), /*config=*/nullptr,
      TF_GRAPH_DEF_VERSION, lib_def.get(), opts,