code: @Deprecated
      public static QuickCheckResult quickCheck(String source, Mode mode) {
          return quickCheck(source, mode, 0);
      }
docs: Convenience method.
  
  @param source   string for determining if it is in a normalized format
  @param mode     normalization format (Normalizer.NFC,Normalizer.NFD,
  Normalizer.NFKC,Normalizer.NFKD)
  @return         Return code to specify if the text is normalized or not
  (Normalizer.YES, Normalizer.NO or Normalizer.MAYBE)
  @deprecated ICU 56 Use {@link Normalizer2} instead.
  @hide original deprecated declaration