toJson method
override
Object to Map serializer
Implementation
@override
Map<String, dynamic> toJson() {
return {
'@type': 'chatEventStickerSetChanged',
if (extra != null) '@extra': extra,
'old_sticker_set_id': old_sticker_set_id,
'new_sticker_set_id': new_sticker_set_id
};
}