ASSERT_TRUE(status.ok()) << status.message();

  const tensorflow::string output_op_name(
      tensorflow::ParseTensorName(output_name).first);
  TF_Operation* output_op =
      TF_GraphOperationByName(graph, output_op_name.c_str());
  ASSERT_TRUE(output_op != nullptr);
  csession.SetOutputs({output_op});
  csession.Run(s);