* @param opType The operation type (CREATE, INDEX, etc.).
     * @return The IndexResponse from OpenSearch.
     * @throws OpenSearchAccessException if the insertion fails.
     * @throws CrawlingAccessException if there's a conflict during insertion.
     */
    protected IndexResponse insert(final Object target, final OpType opType) {
        final String url = getUrl(target);
        if (url == null) {

 *
 * <p>
 * The class is responsible for:
 * </p>
 * <ul>
 *   <li>Updating session IDs for URL queues.</li>
 *   <li>Adding new URLs to the queue.</li>
 *   <li>Inserting existing {@link UrlQueueImpl} objects into the queue.</li>
 *   <li>Deleting URL queues associated with a session.</li>
 *   <li>Deleting all URL queues.</li>