final SearchHits searchHits = response.getHits();
                if (searchHits.getHits().length == 0) {
                    break;
                }

                final BulkResponse bulkResponse = getClient().get(c -> {
                    final BulkRequestBuilder builder = c.prepareBulk();
                    for (final SearchHit searchHit : searchHits) {

     *
     * @param bulkResponse The bulk response containing potential failures.
     * @param ignoreAlreadyExists Whether to ignore already existing document failures.
     * @return The formatted failure message, or empty string if no failures to report.
     */
    protected String buildFailureMessage(final BulkResponse bulkResponse, final boolean ignoreAlreadyExists) {

import org.codelibs.fess.suggest.util.SuggestUtil;
import org.opensearch.action.bulk.BulkItemResponse;
import org.opensearch.action.bulk.BulkRequestBuilder;
import org.opensearch.action.bulk.BulkResponse;
import org.opensearch.action.get.GetResponse;
import org.opensearch.action.index.IndexAction;
import org.opensearch.action.index.IndexRequest;
import org.opensearch.action.index.IndexRequestBuilder;

        return client.prepareDelete(index, id);
    }

    @Override
    public ActionFuture<BulkResponse> bulk(final BulkRequest request) {
        return client.bulk(request);
    }

    @Override
    public void bulk(final BulkRequest request, final ActionListener<BulkResponse> listener) {
        client.bulk(request, listener);
    }

    @Override

                    final BulkResponse bulkResponse = bulkRequestBuiler.execute().actionGet(settings.getBulkTimeout());
                    if (bulkResponse.hasFailures()) {
                        throw new SuggesterException(bulkResponse.buildFailureMessage());
                    }
                    response = client.prepareSearchScroll(scrollId)