Chat.fromJson constructor
Creates a Chat object from JSON.
Implementation
factory Chat.fromJson(Map<String, dynamic> json) {
return Chat(
id: json['id'],
type: ChatType.fromJson(json['type'] as String),
title: json['title'],
username: json['username'],
firstName: json['first_name'],
lastName: json['last_name'],
isForum: json['is_forum'] ?? false,
);
}