*/
    public long getAllWordsNum() {
        return getNum(QueryBuilders.matchAllQuery());
    }

    /**
     * Returns the number of document words in the suggestion index.
     * @return The number of document words.
     */
    public long getDocumentWordsNum() {
        return getNum(QueryBuilders.rangeQuery(FieldNames.DOC_FREQ).gte(1));
    }

    /**

        });
        th.start();

        SuggestResponse response = deferred.promise().getResponse(10, TimeUnit.SECONDS);
        assertEquals(0, response.getNum());
    }

    @Test
    public void test_getResponseAfterResolve() throws Exception {
        final Deferred<SuggestResponse> deferred = new Deferred<>();

        Thread th = new Thread(() -> {

     */
    public List<String> getWords() {
        return words;
    }

    /**
     * Returns the number of suggested words.
     * @return The number of words.
     */
    public int getNum() {
        return num;
    }

    /**
     * Returns the total number of hits.
     * @return The total number of hits.
     */
    public long getTotal() {
        return total;
    }

    public List<String> getWords() {
        return words;
    }

    /**
     * Returns the number of popular words.
     *
     * @return the number of popular words
     */
    public int getNum() {
        return num;
    }

    /**
     * Returns the total number of words.
     *
     * @return the total number of words
     */
    public long getTotal() {
        return total;

            stream(parameter.getSuggestFields()).of(stream -> stream.forEach(builder::addField));
            roleQueryHelper.build(SearchRequestType.SUGGEST).stream().forEach(builder::addRole);
            builder.setSize(parameter.getNum());
            stream(langs).of(stream -> stream.forEach(builder::addLang));

            stream(parameter.getTags()).of(stream -> stream.forEach(builder::addTag));