toJson method Null safety
- @override
override
Implementation
@override
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = super.toJson();
data['duration'] = this.duration;
return data;
}
@override
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = super.toJson();
data['duration'] = this.duration;
return data;
}