import 'package:aitrainer_app/model/exercise.dart'; abstract class GroupData { void iteration(); bool checkNewType(Exercise exercise); void addTempData(Exercise element); void temp2Output(Exercise exercise); void resetTemp(); } class DiagramData { final String x; final double? y; DiagramData(this.x, this.y); Map toJson() { Map json = {"x": this.x, "y": this.y}; return json; } String toString() => this.toJson().toString(); }