from yandex_music import YandexMusicObject class Price(YandexMusicObject): def __init__(self, amount, currency, client=None, **kwargs): self.amount = amount self.currency = currency self.client = client @classmethod def de_json(cls, data, client): if not data: return None data = super(Price, cls).de_json(data, client) return cls(client=client, **data)