int ninputs, const TF_Output* outputs,
                   TF_Tensor** output_values, int noutputs,
                   const TF_Operation* const* target_opers, int ntargets,
                   TF_Buffer* run_metadata, TF_Status* status) {
  // TODO(josh11b,mrry): Change Session to be able to use a Graph*
  // directly, instead of requiring us to serialize to a GraphDef and

  TF_Output fetches[] = {dxy_dx, dxy_dy};
  TF_Tensor* fetchValues[] = {nullptr, nullptr};

  TF_SessionRun(sess, nullptr /* run_options */, feeds, feedValues, 2, fetches,
                fetchValues, 2, nullptr /* target_opers */, 0,
                nullptr /* run_metadata */, s_);
  TF_DeleteTensor(feedValues[0]);
  TF_DeleteTensor(feedValues[1]);
  ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
  TF_DeleteSession(sess, s_);