toJson method Null safety

Map<String, dynamic> toJson()

Implementation

core.Map<core.String, core.dynamic> toJson() => {
      if (daysOfWeek != null) 'daysOfWeek': daysOfWeek!,
      if (hoursOfDay != null) 'hoursOfDay': hoursOfDay!,
      if (userLocalTime != null) 'userLocalTime': userLocalTime!,
    };