toJson method
Implementation
Map<String, dynamic> toJson() => {
"couponEndTime": couponEndTime,
"itemId": itemId,
"img": img,
"commissionRate": commissionRate,
"activityPrice": activityPrice,
"price": price,
"couponStartTime": couponStartTime,
"remark": remark,
"couponPrice": couponPrice,
"type": type,
"title": title,
"url": url,
};