toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (dayOfWeek != null) 'dayOfWeek': dayOfWeek!,
if (endHour != null) 'endHour': endHour!,
if (startHour != null) 'startHour': startHour!,
if (timeZoneResolution != null)
'timeZoneResolution': timeZoneResolution!,
};