import 'package:json_annotation/json_annotation.dart'; part 'member_info.g.dart'; @JsonSerializable() class MemberInfo { @JsonKey(name: 'isMember') bool isMember; @JsonKey(name: 'endTimestamp') int? endTimestamp; MemberInfo(this.isMember, this.endTimestamp); factory MemberInfo.fromJson(Map json) => _$MemberInfoFromJson(json); Map toJson() => _$MemberInfoToJson(this); }