toJson method
Implementation
Map<String, dynamic> toJson() => {
"promotionSceneId": promotionSceneId,
"activityEndTime": activityEndTime!.toIso8601String(),
"materialLink": materialLink,
"activityLink": activityLink,
"activityName": activityName,
"activityStartTime": activityStartTime!.toIso8601String(),
"id": id,
"type": type,
"activityInfo": activityInfo,
};