return Collections.emptyList();
    }

    /**
     * Creates a bulk line for OpenSearch indexing from the given parameters.
     *
     * @param index the name of the OpenSearch index
     * @param type the type of the document (deprecated in newer versions of OpenSearch)
     * @param item the SuggestItem containing the data to be indexed
     * @return a string representing the bulk line for OpenSearch indexing

    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.interval.IntervalController#delay(int)
     */
    @Override
    public void delay(final int type) {
        try {
            switch (type) {
            case PRE_PROCESSING:
                delayBeforeProcessing();
                break;
            case POST_PROCESSING:
                delayAfterProcessing();
                break;

                return -1;
            }
        }

        /**
         * Gets the content type of the storage object.
         *
         * @return The content type, or null if unavailable
         */
        @Override
        public String getContentType() {
            if (minioClient == null) {
                return null;
            }

 * <li>{@link #ARRAY_KEY} - The key for array elements.</li>
 * <li>{@link #ARRAY_VALUE} - The value for array elements.</li>
 * <li>{@link #ANALYZER_SETTINGS_TYPE} - The analyzer settings type field.</li>
 * <li>{@link #ANALYZER_SETTINGS_FIELD_NAME} - The analyzer settings field name.</li>
 * <li>{@link #ANALYZER_SETTINGS_READING_ANALYZER} - The reading analyzer settings field.</li>

    /** The text separator. */
    public static final String TEXT_SEPARATOR = " ";

    /** The default role for guest users. */
    public static final String DEFAULT_ROLE = "_guest_";

    /** The default document type. */
    public static final String DEFAULT_TYPE = "_doc";

     *
     * @param index The index to delete from.
     * @param type The document type (deprecated).
     * @param queryBuilder The query to match documents for deletion.
     * @return The number of deleted documents.
     * @throws OpenSearchAccessException if the deletion fails.
     */
    public int deleteByQuery(final String index, final String type, final QueryBuilder queryBuilder) {
        SearchResponse response =

        runner = new OpenSearchRunner();
        runner.onBuild((number, settingsBuilder) -> {
            settingsBuilder.put("http.cors.enabled", true);
            settingsBuilder.put("discovery.type", "single-node");
            // settingsBuilder.putList("discovery.seed_hosts", "127.0.0.1:9301");
            // settingsBuilder.putList("cluster.initial_master_nodes", "127.0.0.1:9301");
        })

        final String clusterName = UUID.randomUUID().toString();
        runner.onBuild((number, settingsBuilder) -> {
            settingsBuilder.put("http.cors.enabled", true);
            settingsBuilder.put("discovery.type", "single-node");
        }).build(newConfigs().clusterName(clusterName).numOfNode(1));

        // wait for yellow status
        runner.ensureYellow();

    tags,                                         // categorization tags
    roles,                                        // access roles
    SuggestItem.Kind.DOCUMENT                     // suggestion type
);

suggester.indexer().index(item);
```

#### 3. Get Suggestions

```java
import org.codelibs.fess.suggest.request.suggest.SuggestResponse;

// Synchronous suggestion request

        runner = new OpenSearchRunner();
        runner.onBuild((number, settingsBuilder) -> {
            settingsBuilder.put("http.cors.enabled", true);
            settingsBuilder.put("discovery.type", "single-node");
            // settingsBuilder.putList("discovery.seed_hosts", "127.0.0.1:9301");
            // settingsBuilder.putList("cluster.initial_master_nodes", "127.0.0.1:9301");
        })