toJson method Null safety

Map toJson()

Implementation

Map toJson() {
  Map data = Map();
  data['pushStyle'] = _pushStyle == EMImPushStyle.Simple;
  data['noDisturb'] = _noDisturb;
  data['noDisturbStartHour'] = _noDisturbStartHour;
  data['noDisturbEndHour'] = _noDisturbEndHour;
  return data;
}