code: @Override
      public void print(
          ChronoDisplay context,
          Appendable buffer,
          AttributeQuery attributes
      ) throws IOException {
  
          NumberSystem numsys = attributes.get(Attributes.NUMBER_SYSTEM, NumberSystem.ARABIC);
          char zeroChar = (
              attributes.contains(Attributes.ZERO_DIGIT)
              ? attributes.get(Attributes.ZERO_DIGIT).charValue()
              : (numsys.isDecimal() ? numsys.getDigits().charAt(0) : '0'));
          this.print(context, buffer, attributes, numsys, zeroChar, 1, 10);
  
      }
docs: ~ Methoden ----------------------------------------------------------