docs: public B timerWithDate(String timerDate) {
      TimeDate timeDate = createInstance(TimeDate.class);
      timeDate.setTextContent(timerDate);
  
      TimerEventDefinition timerEventDefinition = createInstance(TimerEventDefinition.class);
      timerEventDefinition.setTimeDate(timeDate);
  
      element.getEventDefinitions().add(timerEventDefinition);
  
      return myself;
    }