/* In this model, we give example about using private variable */ class ChatModel { int _id; String? _type; String _isTextImageDate; String _message; String? _date; bool? _read; ChatModel(this._id, this._type, this._isTextImageDate, this._message, this._date, this._read); int get getId{ return _id; } String? get getType{ return _type; } String get getTextImageDate{ return _isTextImageDate; } String get getMessage{ return _message; } String? get getDate{ return _date; } bool? get getRead{ return _read; } }