* @return The SuggestDeleteResponse.
     */
    public SuggestDeleteResponse deleteByQuery(final QueryBuilder queryBuilder) {
        ensureOperations();
        return deletionOps.deleteByQuery(index, queryBuilder);
    }

    /**
     * Deletes all suggest items.
     * @return The SuggestDeleteResponse.
     */
    public SuggestDeleteResponse deleteAll() {
        ensureOperations();