const SignatureDef& signature_def = key_and_signature_def.second;

      // It is safe to skip "__saved_model_init_op" since it is an internal
      // signature that is not user-accessible. This signature will be handled
      // in ConvertInitializer().
      if (sig_def_key == "__saved_model_init_op") {
        continue;
      }
      if (!import_all_signatures && exported_name_set.count(sig_def_key) == 0) {