class PosSpec { double? axisX; double? axisY; int? coordinatePos; PosSpec({this.axisX, this.axisY, this.coordinatePos}); factory PosSpec.fromJson(Map json) => PosSpec( axisX: (json['axis_x'] as num?)?.toDouble(), axisY: (json['axis_y'] as num?)?.toDouble(), coordinatePos: json['coordinate_pos'] as int?, ); Map toJson() => { 'axis_x': axisX, 'axis_y': axisY, 'coordinate_pos': coordinatePos, }; }