/**
     * Parses a source map from OpenSearch and creates a SuggestItem.
     *
     * @param source The source map from OpenSearch
     * @return A new SuggestItem instance
     */
    public static SuggestItem fromSource(final Map<String, Object> source) {
        final String text = source.get(FieldNames.TEXT).toString();
        final List<String[]> readings = new ArrayList<>();
        for (int i = 0;; i++) {

     * @param source The source map.
     * @return A SuggestItem instance.
     */
    public static SuggestItem parseSource(final Map<String, Object> source) {
        return SuggestItemSerializer.fromSource(source);
    }

    /**
     * Returns the updated source map by merging with existing source.
     * @param existingSource The existing source map.
     * @return The updated source map.
     */