// global initialization fiasco between tests and code in TF.
}

void FakeSession::Initialize() {
  if (initialized_) return;
  BuildDeviceManager();
  InitVariables();
  initialized_ = true;
}

void FakeSession::BuildDeviceManager() {
  auto device =
      tensorflow::DeviceFactory::NewDevice("CPU", {}, kDeviceNamePrefix);
  device_mgr_ =