}

    public SuggestDeleteResponse deleteAll() {
        final SuggestDeleteResponse response = deleteByQuery(QueryBuilders.matchAllQuery());
        restoreElevateWord();
        return response;
    }

    public SuggestDeleteResponse deleteDocumentWords() {
        final long start = System.currentTimeMillis();

        final SuggestDeleteResponse deleteResponse =

        suggester.settings().elevateWord().add(elevateWord1);
        suggester.settings().elevateWord().add(elevateWord2);
        suggester.settings().elevateWord().add(elevateWord3);

        suggester.indexer().restoreElevateWord();
        suggester.refresh();

        SuggestResponse response1 = suggester.suggest().setQuery("tes").setSuggestDetail(true).execute().getResponse();
        assertEquals(1, response1.getNum());