docs: public AbucoinsCreateOrderResponse createAbucoinsOrder(AbucoinsBaseCreateOrderRequest req)
        throws IOException {
      AbucoinsCreateOrderResponse resp =
          abucoinsAuthenticated.createOrder(
              exchange.getExchangeSpecification().getApiKey(),
              signatureCreator,
              exchange.getExchangeSpecification().getPassword(),
              timestamp(),
              req);
      if (resp.getMessage() != null) throw new ExchangeException(resp.getMessage());
  
      return resp;
    }