* items that have the same ID. The merged items are added to a new list, which is then
     * converted back to an array and returned.</p>
     *
     * @param items an array of SuggestItem objects to be merged
     * @return an array of merged SuggestItem objects
     */
    default SuggestItem[] mergeItems(final SuggestItem[] items) {
        final Set<String> mergedIdSet = new HashSet<>();

        * whose key is a prefix of the given path. If a matching entry is found,
        * the corresponding SmbAuthentication object is returned.
        * </p>
        *
        * @param path The path for which to retrieve the SmbAuthentication.
        *             If null, the method returns null.
        * @return The SmbAuthentication associated with the path, or null if no
        *         matching authentication is found or if the path is null.

        return analyzerSettings.new DefaultContentsAnalyzer();
    }

    /**
     * Converts the given object to a list of strings.
     * <p>
     * If the object is null, an empty list is returned.
     * If the object is a string, a list containing that string is returned.
     * If the object is a list, it is cast to a list of strings and returned.
     * </p>
     *

        return "";
    }

    /**
     * Returns the result data footer.
     * @return The result data footer.
     */
    protected String getResultDataFooter() {
        // TODO support other type
        return "</doc>";
    }

    /**
     * Trims space characters from the value.
     * @param value The value to trim.
     * @return The trimmed value.
     */

            }
            return new XPathAPI();
        }
    }

    /**
     * Returns the header for the result data.
     * @return The result data header.
     */
    protected String getResultDataHeader() {
        // TODO support other type
        return "<?xml version=\"1.0\"?>\n<doc>\n";
    }

    /**
     * Returns the body of the result data for a single value.

    /**
     * Returns the identifier of the access result.
     *
     * @return the identifier
     */
    IDTYPE getId();

    /**
     * Sets the identifier of the access result.
     *
     * @param id the identifier
     */
    void setId(IDTYPE id);

    /**
     * Returns the session identifier.
     *
     * @return the session identifier
     */

     * Returns the SuggestSettings instance.
     * @return The SuggestSettings instance.
     */
    public SuggestSettings settings() {
        return suggestSettings;
    }

    /**
     * Returns the ReadingConverter instance.
     * @return The ReadingConverter instance.
     */
    public ReadingConverter getReadingConverter() {
        return readingConverter;
    }

    /**

    /**
     * Returns the filter index name.
     * @return The filter index name.
     */
    public String getFilterIndex() {
        return filterIndex;
    }

    /**
     * Sets the filter index name.
     * @param filterIndex The filter index name.
     */
    public void setFilterIndex(final String filterIndex) {
        this.filterIndex = filterIndex;
    }

    /**

     * @return The fields.
     */
    public String[] getFields() {
        return fields;
    }

    /**
     * Returns the kinds of the suggest item.
     * @return The kinds.
     */
    public Kind[] getKinds() {
        return kinds;
    }

    /**
     * Returns the query frequency of the suggest item.
     * @return The query frequency.
     */

     *
     * @return the list of popular words
     */
    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