// Clean up operation and inputs.
  TF_DeleteAbstractOp(op);
  TF_DeleteAbstractTensor(at);

  // Verify the results.
  ASSERT_EQ(1, TF_OutputListNumOutputs(o));
  TF_AbstractTensor* result = TF_OutputListGet(o, 0);
  TFE_TensorHandle* result_t =
      TF_AbstractTensorGetEagerTensor(result, status.get());
  ASSERT_EQ(TF_OK, TF_GetCode(status.get())) << TF_Message(status.get());