toJson method
Implementation
@override
Map<String, dynamic> toJson() => <String, dynamic>{
'id': id,
'chat_id': chatId,
'expiration_date': expirationDate,
'is_canceled': isCanceled,
'is_expiring': isExpiring,
'pricing': pricing?.toJson(),
'type': type?.toJson(),
'@type': constructor,
};