class OpenAI { late String question; late String modelName; late double temperature; OpenAI(this.question, this.modelName, this.temperature); OpenAI.fromJson(Map json) { question = json['question']; modelName = json['modelName']; temperature = json['temperature']; } Map toJson() => { "question": question, "modelName": modelName, "temperature": temperature, }; @override String toString() => toJson().toString(); }