docs: public BitbayBaseResponse withdraw(
        Currency currency,
        BigDecimal quantity,
        String account,
        boolean express,
        String bicOrSwiftCode) {
      BitbayBaseResponse resp =
          bitbayAuthenticated.withdraw(
              apiKey,
              sign,
              exchange.getNonceFactory(),
              currency.getCurrencyCode(),
              quantity.toString(),
              account,
              Boolean.toString(express),
              bicOrSwiftCode);
      if (resp.getMessage() != null) throw new ExchangeException(resp.getMessage());
      return resp;
    }