bool ValidateConstWhileParams(const TF_WhileParams& params, TF_Status* s) {
  if (params.cond_graph == nullptr || params.body_graph == nullptr ||
      params.cond_graph->parent == nullptr ||
      params.cond_graph->parent != params.body_graph->parent ||
      params.cond_graph->parent_inputs != params.body_graph->parent_inputs ||
      params.ninputs <= 0 || params.cond_inputs == nullptr ||

                             std::vector<AbstractTensorHandle*>* params) {
  tracing::TracingTensorHandle* handle = nullptr;
  for (auto input : inputs) {
    PartialTensorShape shape;
    TF_RETURN_IF_ERROR(input->Shape(&shape));
    TF_RETURN_IF_ERROR(dyn_cast<tracing::TracingContext>(ctx)->AddParameter(
        input->DataType(), shape, &handle));
    params->emplace_back(handle);
  }
  return absl::OkStatus();
}