docs: public void addDateTimeHelper(int ds, Date date) throws SerializationException, InvalidDataSetException {
  		if (date == null) {
  			return;
  		}
  
  		DataSetInfo dsi = dsiFactory.create(ds);
  
  		SimpleDateFormat df = new SimpleDateFormat(dsi.getSerializer().toString());
  		String value = df.format(date);
  		byte[] data = dsi.getSerializer().serialize(value, activeSerializationContext);
  		DataSet dataSet = new DefaultDataSet(dsi, data);
  		add(dataSet);
  	}