void TensorHandleSilentCopy(bool async,
                            TFE_ContextDevicePlacementPolicy global_policy,
                            TFE_ContextDevicePlacementPolicy thread_policy,
                            bool cpu_op) {
  std::unique_ptr<TF_Status, decltype(&TF_DeleteStatus)> status(
      TF_NewStatus(), TF_DeleteStatus);
  TFE_ContextOptions* opts = TFE_NewContextOptions();