toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (deadlineDate != null) 'deadlineDate': deadlineDate!,
if (deadlineHour != null) 'deadlineHour': deadlineHour!,
if (deadlineTimezone != null) 'deadlineTimezone': deadlineTimezone!,
if (holidayId != null) 'holidayId': holidayId!,
if (visibleFromDate != null) 'visibleFromDate': visibleFromDate!,
};