class QuestionAnswer {
  int? index;
  double? left;
  double? top;
  String? question;
  String? answer;
  bool? display;
  String guide;

  QuestionAnswer({
    this.index,
    this.left,
    this.top,
    this.question,
    this.answer,
    this.display,
    this.guide = '',
  });
}