ymdet method
      
DateTimeFormatter
ymdet({ 
    
    
- DateFormatStyle? dateStyle,
 - TimeFormatStyle? timeStyle,
 - bool withEra = false,
 
Implementation
DateTimeFormatter ymdet({
  DateFormatStyle? dateStyle,
  TimeFormatStyle? timeStyle,
  bool withEra = false,
}) =>
    _impl.ymdet(timeStyle: timeStyle, dateStyle: dateStyle, withEra: withEra);