toJson method
Implementation
@override
Map<String, dynamic> toJson([dynamic extra]) {
return {
"@type": CONSTRUCTOR,
"gifter_user_id": gifterUserId,
"currency": currency,
"amount": amount,
"cryptocurrency": cryptocurrency,
"cryptocurrency_amount": cryptocurrencyAmount,
"month_count": monthCount,
"sticker": sticker?.toJson(),
};
}