*
     * @param searchRequestType The search request type.
     * @return A list of label type items.
     */
    public List<Map<String, String>> getLabelTypeItemList(final SearchRequestType searchRequestType) {
        return getLabelTypeItemList(searchRequestType, Locale.ROOT);
    }

    /**
     * Returns a list of label type items.
     *
     * @param searchRequestType The search request type.

                    .getLabelTypeItemList(SearchRequestParams.SearchRequestType.SEARCH, requestLocale)
                    .stream()
                    .map(m -> m.get("value"))
                    .forEach(allowedLabels::add);
            if (!Locale.ROOT.equals(requestLocale)) {
                ComponentUtil.getLabelTypeHelper()

        List<Map<String, String>> result = labelTypeHelper.getLabelTypeItemList(SearchRequestType.SEARCH);
        assertNotNull(result);
    }

    @Test
    public void test_getLabelTypeItemList_searchRequestTypeAndLocale() {
        List<Map<String, String>> result = labelTypeHelper.getLabelTypeItemList(SearchRequestType.SEARCH, Locale.ENGLISH);
        assertNotNull(result);
    }

        runtime.registerData("clipboardCopyIcon", fessConfig.isClipboardCopyIconEnabled());

        final List<Map<String, String>> labelTypeItems = labelTypeHelper.getLabelTypeItemList(SearchRequestType.SEARCH,
                request.getLocale() == null ? Locale.ROOT : request.getLocale());
        runtime.registerData("labelTypeItems", labelTypeItems);

            RenderDataUtil.register(data, "chatPage", true);
            // Label type items for filter UI
            final List<Map<String, String>> labelTypeItems = labelTypeHelper.getLabelTypeItemList(SearchRequestType.SEARCH,
                    request.getLocale() == null ? Locale.ROOT : request.getLocale());
            RenderDataUtil.register(data, "labelTypeItems", labelTypeItems);

        final StringBuilder buf = new StringBuilder(255);
        try {
            final List<Map<String, String>> labelTypeItems = labelTypeHelper.getLabelTypeItemList(SearchRequestType.JSON,
                    request.getLocale() == null ? Locale.ROOT : request.getLocale());
            buf.append("\"record_count\":");
            buf.append(labelTypeItems.size());