docs: public static String getFirstUpperLetter(String text, String separator) throws Exception {
  		PinyinFormat format = new PinyinFormat();
  		format.setUpperFormat(PinyinUpperFormat.UPPER_FIRST_LETTER);
  		format.setToneFormat(PinyinTONEFormat.TONE_NONE);
  		if ($.notNull(separator)) {
  			format.setSeparator(separator);
  		}
  		return getPinyin(text, format);
  	}