docs: public DnsBatchResult<Page<RecordSet>> listRecordSets(
        String zoneName, Dns.RecordSetListOption... options) {
      DnsBatchResult<Page<RecordSet>> result = new DnsBatchResult<>();
      Map<DnsRpc.Option, ?> optionMap = DnsImpl.optionMap(options);
      RpcBatch.Callback<ResourceRecordSetsListResponse> callback =
          createListRecordSetsCallback(zoneName, result, optionMap);
      batch.addListRecordSets(zoneName, callback, optionMap);
      return result;
    }