请求参数为什么和官方方的SDK不一样？ about alipay HOT 3 CLOSED

    def api_alipay_trade_app_pay(
        self, subject, out_trade_no, total_amount, notify_url=None, **kwargs
    ):
        biz_content = {
            "subject": subject,
            "out_trade_no": out_trade_no,
            "total_amount": total_amount,
            "product_code": "QUICK_MSECURITY_PAY"
        }
        biz_content.update(kwargs)
        data = self.build_body("alipay.trade.app.pay", biz_content, notify_url=notify_url)
        return self.sign_data(data)