// returned if something is wrong with the graph or input. Note that this may
// return false even if no error status is set.
TF_CAPI_EXPORT extern unsigned char TF_TryEvaluateConstant(TF_Graph* graph,
                                                           TF_Output output,
                                                           TF_Tensor** result,

  }

  TF_Run_Helper(session->session, handle, nullptr, input_pairs, output_names,
                output_values, target_names, nullptr, status);
}

unsigned char TF_TryEvaluateConstant(TF_Graph* graph, TF_Output output,
                                     TF_Tensor** result, TF_Status* status) {
  mutex_lock l(graph->mu);
  auto status_or = EvaluateConstantTensor(