toJson method
Implementation
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = <String, dynamic>{};
if (album != null) {
data['album'] = album?.toJson();
}
if (artists != null) {
data['artists'] = artists?.map((v) => v.toJson()).toList();
}
if (track != null) {
data['track'] = track?.toJson();
}
return data;
}