code: def cancel(self, session):
          '''taobao.crm.shopvip.cancel 卖家取消店铺vip的优惠
          
          此接口用于取消VIP优惠'''
          request = TOPRequest('taobao.crm.shopvip.cancel')
          self.create(self.execute(request, session))
          return self.is_succesf cancel(self, session):
          '''taobao.crm.shopvip.cancel 卖家取消店铺vip的优惠
          
          此接口用于取消VIP优惠'''
          request = TOPRequest('taobao.crm.shopvip.cancel')
          self.create(self.execute(request, session))
          return self.is_success
docs: taobao.crm.shopvip.cancel 卖家取消店铺vip的优惠
          
          此接口用于取消VIP优惠