weeksInWeekYear method
Returns the number of weeks in the week year.
Implementation
int weeksInWeekYear([WeekYearConfig config = WeekYearConfig.iso]) {
final wy = weekYear(config);
final lastDayOfYear = DateTime(wy, 12, 31);
final horaLastDay = Hora.fromDateTime(lastDayOfYear, locale: locale);
return horaLastDay.weekOfWeekYear(config);
}