ChatPhoto.fromJson constructor
Creates a new ChatPhoto object from json.
Implementation
factory ChatPhoto.fromJson(Map<String, dynamic> json) {
return ChatPhoto(
smallFileId: json['small_file_id'],
smallFileUniqueId: json['small_file_unique_id'],
bigFileId: json['big_file_id'],
bigFileUniqueId: json['big_file_unique_id'],
);
}