import 'package:json_annotation/json_annotation.dart'; part 'computeData.g.dart'; @JsonSerializable() class ComputeData { ComputeData(); String total_price; num pay_price; num pay_postage; num coupon_price; num deduction_price; num SurplusIntegral; factory ComputeData.fromJson(Map json) => _$ComputeDataFromJson(json); Map toJson() => _$ComputeDataToJson(this); }