import 'dart:convert';

class ImMessage {
  final String type;
  final String from;
  final String to;
  final String content;

  ImMessage({
    required this.type,
    required this.from,
    required this.to,
    required this.content,
  });

  factory ImMessage.fromJsonString(String json) {
    return ImMessage.fromJson(jsonDecode(json));
  }

  factory ImMessage.fromJson(Map<String, dynamic> json) {
    return ImMessage(
      type: json['type'],
      from: json['from'],
      to: json['to'],
      content: json['content'],
    );
  }

  Map<String, dynamic> toJson() => {
    'type': type,
    'from': from,
    'to': to,
    'content': content,
  };

  String toJsonString() {
    return jsonEncode(toJson());
  }
}