fromMap method
Implementation
fromMap(Map<String, dynamic> json) {
userName = JsonConverters.getJson(json, 'userName');
permissions = JsonConverters.fromJson(
JsonConverters.getJson(json, 'permissions'), 'List<String>', context!);
roles = JsonConverters.fromJson(
JsonConverters.getJson(json, 'roles'), 'List<String>', context!);
return this;
}