https://www.alibabacloud.com/help/en/cdn/developer-reference/api-cdn-2018-05-10-describerefreshtasks
Call DescribeRefreshTasks to query the status of refresh and prefetch tasks - CDN - Alibaba Cloud
Efficiently query CDN refresh and prefetch task status using the `DescribeRefreshTasks` API, with full request parameters, response examples, and error codes.