*   <li>Deleting URL queues associated with a session.</li>
 *   <li>Deleting all URL queues.</li>
 *   <li>Offering a list of URLs to the queue, ensuring duplicates are not added.</li>
 *   <li>Polling (retrieving and removing) a URL from the queue.</li>
 *   <li>Saving the session (currently a no-op).</li>
 *   <li>Checking if a URL has already been visited.</li>

        map.put(FieldNames.TIMESTAMP, timestamp.toInstant().toEpochMilli());
        return map;
    }

    /**
     * Concatenates values to a destination list, avoiding duplicates.
     * @param dest The destination list.
     * @param newValues The new values to add.
     * @param <T> The type of the values.
     */

        SuggestItem.Kind[] result = SuggestItem.concatKinds(kinds1, kinds2);

        assertNotNull(result);
        assertEquals(2, result.length); // Should not have duplicates
        assertTrue(Arrays.asList(result).contains(SuggestItem.Kind.QUERY));
        assertTrue(Arrays.asList(result).contains(SuggestItem.Kind.DOCUMENT));
    }

    @Test
    public void testEmptySource() {

        assertNotNull(invalidKeywords);
        assertEquals(0, invalidKeywords.size());
    }

    @Test
    public void testGetKeywordsWithDuplicates() {
        // Test that duplicates are removed
        String query = "test test query";
        String[] fields = { "content" };
        List<String> keywords = SuggestUtil.getKeywords(query, fields);
        assertNotNull(keywords);

    }

    /**
     * Gets the maximum number of duplicated paths to attempt.
     *
     * @return the maximum duplicated path count
     */
    public int getMaxDuplicatedPath() {
        return maxDuplicatedPath;
    }

    /**
     * Sets the maximum number of duplicated paths to attempt.
     *
     * @param maxDuplicatedPath the maximum duplicated path count to set
     */

 *   <li>Optionally removing duplicate terms based on a flag.</li>
 *   <li>Limiting the maximum size of alphanumeric and symbol terms.</li>
 * </ul>
 *
 * <p>The {@link TextNormalizeContext} class provides a fluent API to configure the text
 * normalization process, including setting initial buffer capacity, maximum term sizes,
 * duplicate term removal, and custom space characters.
 *
 * <p>Example usage:

     */
    public void setInitialBufferSize(final int initialBufferSize) {
        this.initialBufferSize = initialBufferSize;
    }

    /**
     * Sets whether duplicated terms are replaced.
     * @param replaceDuplication If true, duplicated terms are replaced.
     */
    public void setReplaceDuplication(final boolean replaceDuplication) {
        this.replaceDuplication = replaceDuplication;
    }

    /**

        request.setMatchWordFirst(matchWordFirst);
        return this;
    }

    /**
     * Sets whether to skip duplicate words.
     * @param skipDuplicateWords True to skip duplicate words, false otherwise.
     * @return This builder instance.
     */
    public SuggestRequestBuilder setSkipDuplicateWords(final boolean skipDuplicateWords) {

    }

    private static String parse(String rule, Set<String> dup) {
        String[] values = CSVUtil.parse(rule);
        if (dup.add(values[0]) == false) {
            throw new IllegalArgumentException("Found duplicate term [" + values[0] + "] in user dictionary.");
        }
        return rule;
    }

    public static UserDictionary getUserDictionary(Environment env, Settings settings) {

     */
    public void setMatchWordFirst(final boolean matchWordFirst) {
        this.matchWordFirst = matchWordFirst;
    }

    /**
     * Sets whether to skip duplicate words.
     * @param skipDuplicateWords True to skip duplicate words, false otherwise.
     */
    public void setSkipDuplicateWords(final boolean skipDuplicateWords) {
        this.skipDuplicateWords = skipDuplicateWords;
    }

    /**