if (!cpu_factory) {
    return errors::NotFound(
        "CPU Factory not registered. Can't run EncapsulateSubgraphsPass");
  }
  TF_RETURN_IF_ERROR(cpu_factory->CreateDevices(
      session_options, "/job:localhost/replica:0/task:0", &devices));
  if (devices.empty()) {
    return errors::NotFound(
        "Failed to create a CPU device for EncapsulateSubgraphsPass");
  }