* <li>{@link #deleteFromArray(String, String, String)}: Deletes a specific entry from the array index based on the ID.</li>
 * <li>{@link #createMappingIfEmpty(String, String, Client)}: Creates the index mapping if it does not exist.</li>
 * <li>{@link #loadIndexSettings()}: Loads the index settings from a JSON file.</li>
 * </ul>
 *
 * <p>Fields:
 * <ul>