Reward.fromJson constructor
Implementation
factory Reward.fromJson(Map<String, dynamic> json) => Reward(
userId: json["userId"],
taskId: json["taskId"],
event: json["event"],
quantity: json["quantity"],
rewardId: json["rewardId"],
rewardName: json["rewardName"],
rewardType: json["rewardType"],
rewardValue: json["rewardValue"].toString(),
);