* @return The SuggestIndexResponse.
     */
    public SuggestIndexResponse index(final SuggestItem[] items) {
        final SuggestItem[] array = Stream.of(items).filter(item -> !item.isBadWord(badWords)).toArray(SuggestItem[]::new);

        if (logger.isDebugEnabled()) {
            logger.debug("Indexing suggest items: index={}, totalItems={}, validItems={}, filteredByBadWords={}", index, items.length,