if (!t) {
      return tensorflow::errors::InvalidArgument(
          "Unable to cast input to GraphTensor");
    }
    inputs_.push_back(t->output_);
    *output = tensorflow::down_cast<TracingTensorHandle*>(outputs[0]);
    return absl::OkStatus();
  }

  Status Finalize(OutputList* outputs, AbstractFunction** f) override {
    std::vector<TF_Output> graph_outputs;

      // One of the inputs we're trying to pack is on a custom device. We'll let
      // the first custom device we see handle all of the packing.
      auto* custom_device_handle =
          tensorflow::down_cast<tensorflow::CustomDeviceTensorHandle*>(
              unwrapped_handle);
      tensorflow::ImmediateExecutionTensorHandle* result;
      status->status = custom_device_handle->device()->Pack(

      tensorflow::unwrap(h);
  // TODO(b/175427838): It would be nice to be able to use tensorflow::isa here.
  if (tensorflow::CustomDeviceTensorHandle::classof(unwrapped_handle)) {
    return tensorflow::down_cast<tensorflow::CustomDeviceTensorHandle*>(
               unwrapped_handle)
        ->DevicePointer();
  }
  // TODO(b/175427838): It would be nice to be able to use tensorflow::isa here.

  tensorflow::TensorProto from_tensor_proto;
  status->status = BufferToMessage(from, &from_tensor_proto);
  if (!status->status.ok()) {
    return;
  }
  status->status =
      tensorflow::down_cast<tensorflow::TensorInterface*>(to->tensor)
          ->FromProto(from_tensor_proto);
}
// --------------------------------------------------------------------------

    @Override
    public LabelTypeCB newConditionBean() {
        return new LabelTypeCB();
    }

    @Override
    protected Entity doReadEntity(ConditionBean cb) {
        return facadeSelectEntity(downcast(cb)).orElse(null);
    }

    public LabelType selectEntityWithDeletedCheck(CBCall<LabelTypeCB> cbLambda) {
        return facadeSelectEntityWithDeletedCheck(createCB(cbLambda));
    }

    @Override
    public SearchLogCB newConditionBean() {
        return new SearchLogCB();
    }

    @Override
    protected Entity doReadEntity(ConditionBean cb) {
        return facadeSelectEntity(downcast(cb)).orElse(null);
    }

    public SearchLog selectEntityWithDeletedCheck(CBCall<SearchLogCB> cbLambda) {
        return facadeSelectEntityWithDeletedCheck(createCB(cbLambda));
    }

    }

    @Override
    public RoleCB newConditionBean() {
        return new RoleCB();
    }

    @Override
    protected Entity doReadEntity(ConditionBean cb) {
        return facadeSelectEntity(downcast(cb)).orElse(null);
    }

    public Role selectEntityWithDeletedCheck(CBCall<RoleCB> cbLambda) {
        return facadeSelectEntityWithDeletedCheck(createCB(cbLambda));
    }

    @Override
    public CrawlingInfoCB newConditionBean() {
        return new CrawlingInfoCB();
    }

    @Override
    protected Entity doReadEntity(ConditionBean cb) {
        return facadeSelectEntity(downcast(cb)).orElse(null);
    }

    public CrawlingInfo selectEntityWithDeletedCheck(CBCall<CrawlingInfoCB> cbLambda) {
        return facadeSelectEntityWithDeletedCheck(createCB(cbLambda));
    }

    @Override
    public FavoriteLogCB newConditionBean() {
        return new FavoriteLogCB();
    }

    @Override
    protected Entity doReadEntity(ConditionBean cb) {
        return facadeSelectEntity(downcast(cb)).orElse(null);
    }

    public FavoriteLog selectEntityWithDeletedCheck(CBCall<FavoriteLogCB> cbLambda) {
        return facadeSelectEntityWithDeletedCheck(createCB(cbLambda));
    }

    public BoostDocumentRuleCB newConditionBean() {
        return new BoostDocumentRuleCB();
    }

    @Override
    protected Entity doReadEntity(ConditionBean cb) {
        return facadeSelectEntity(downcast(cb)).orElse(null);
    }

    public BoostDocumentRule selectEntityWithDeletedCheck(CBCall<BoostDocumentRuleCB> cbLambda) {
        return facadeSelectEntityWithDeletedCheck(createCB(cbLambda));
    }