toJson method
Implementation
@override
Map<String, dynamic> toJson() => <String, dynamic>{
'upgraded_gift_id': upgradedGiftId.toString(),
'gift_title': giftTitle,
'gift_name': giftName,
'model_custom_emoji_id': modelCustomEmojiId.toString(),
'symbol_custom_emoji_id': symbolCustomEmojiId.toString(),
'backdrop_colors': backdropColors?.toJson(),
'@type': constructor,
};