code: @Override
      @Deprecated
      public PluralRanges cloneAsThawed() {
          PluralRanges result = new PluralRanges();
          result.explicit = explicit.clone();
          result.matrix = matrix.clone();
          return result;
      }
docs: {@inheritDoc}
  @deprecated This API is ICU internal only.
  @hide draft / provisional / internal are hidden on Android