docs: def get_pay_giftcard(self, rule_id):
          """
          查询支付后投放卡券的规则
          详情请参见
          https://mp.weixin.qq.com/wiki?id=mp1466494654_K9rNz
  
          :param rule_id: 支付即会员的规则 ID
          :return: 支付后投放卡券的规则
          :rtype: dict
          """
          return self._post(
              'card/paygiftcard/getbyid',
              data={
                  'rule_id': rule_id,
              },
              result_processor=lambda x: x['rule_info'],
          )