document.put("content", "これはテストです。検索エンジン。");
        document.put("title", "タイトル");

        SuggestAnalyzer analyzer = suggester.settings().analyzer().new DefaultContentsAnalyzer();
        List<SuggestItem> items = defaultContentsParser.parseDocument(document, supportedFields, tagFieldNames, roleFieldName, "lang",

        }
        return sb.toString();
    }

    /**
     * Default contents analyzer.
     */
    public class DefaultContentsAnalyzer implements SuggestAnalyzer {

        /**
         * Constructs a new DefaultContentsAnalyzer.
         */
        public DefaultContentsAnalyzer() {
            // nothing
        }

    }

    /**
     * Creates a new instance of DefaultContentsAnalyzer using the provided client and suggest settings.
     *
     * @param client   the OpenSearch client to be used for the analyzer
     * @param settings the suggest settings containing the analyzer configuration
     * @return a new instance of AnalyzerSettings.DefaultContentsAnalyzer
     */

        runner.ensureYellow();
        suggester = Suggester.builder().build(runner.client(), "DefaultContentsParserEdgeCaseTest");
        analyzer = suggester.settings().analyzer().new DefaultContentsAnalyzer();
        defaultReadingConverter = createDefaultReadingConverter();
        defaultNormalizer = createDefaultNormalizer();
    }

    @AfterClass
    public static void afterClass() throws Exception {

        assertNotNull(normalizer);
    }

    @Test
    public void testCreateDefaultAnalyzer() {
        // Test creating default analyzer
        AnalyzerSettings.DefaultContentsAnalyzer analyzer = SuggestUtil.createDefaultAnalyzer(client, settings);
        assertNotNull(analyzer);
    }

    @Test
    public void testGetAsList() {
        // Test with null