import 'package:json_annotation/json_annotation.dart'; part 'trans_content.g.dart'; @JsonSerializable() class TransContent { String? src; String? dst; int? wb; int? we; @JsonKey(name: 'is_final') int? isFinal; TransContent({this.src, this.dst, this.wb, this.we, this.isFinal}); factory TransContent.fromJson(Map json) { return _$TransContentFromJson(json); } Map toJson() => _$TransContentToJson(this); }