fromJsonThread method Null safety

Message fromJsonThread(
  1. dynamic json
)

Implementation

static Message fromJsonThread(dynamic json) {
  //
  // String? content = json['content'];
  List<Answer> robotQaList = [];
  if (json['type'] == BytedeskConstants.MESSAGE_TYPE_ROBOT) {
    robotQaList = json['answers'] == null
        ? []
        : (json['answers'] as List<dynamic>)
            .map((item) => Answer.fromJson(item))
            .toList();
    // for (var i = 0; i < robotQaList.length; i++) {
    //   Answer answer = robotQaList[i];
    //   content += '\n\n' + answer.aid + ':' + answer.question;
    // }
  }
  //
  return Message(
      mid: json['mid'],
      content: json['content'],
      imageUrl: json['imageUrl'],
      voiceUrl: json['voiceUrl'],
      fileUrl: json['fileUrl'],
      videoUrl: json['videoOrShortUrl'],
      nickname: json['user']['nickname'],
      avatar: json['user']['avatar'],
      type: json['type'],
      timestamp: json['createdAt'],
      status: 'stored',
      isSend: 0,
      client: json['client'],
      thread: Thread.fromVisitorJson(json['thread']),
      user: User.fromJson(json['user']),
      answers: robotQaList,
      answersJson: json['answers'].toString());
}