"Function ", function_name,
          " is self recursive and TensorFlow does not support this scenario."));
    }
  }

  return absl::OkStatus();
}

static Status ValidateSavedTensors(const GraphDef& graph_def) {
  for (const auto& node : graph_def.node()) {
    TF_RETURN_IF_ERROR(ValidateNode(node));
  }

  if (graph_def.has_library()) {