</example>
  </function>

  <function>
    <description>
      Returns query parameters for paging.
    </description>
    <name>pagingQuery</name>
    <function-class>org.codelibs.fess.taglib.FessFunctions</function-class>
    <function-signature>java.lang.String pagingQuery(java.lang.String)</function-signature>
    <example>
      ${fe:pagingQuery("ex_q=timestamp:")}
    </example>
  </function>

  <function>

        df.applyPattern(format);
        df.setRoundingMode(RoundingMode.HALF_UP);
        return df.format(target) + unit;
    }

    public static String pagingQuery(final String query) {
        return LaRequestUtil.getOptionalRequest().map(req -> {
            @SuppressWarnings("unchecked")