Imports github.com/aliyun/aliyun-oss-go-sdk/oss github.com/minio/minio-go github.com/qiniu/go-sdk/v7/auth github.com/qiniu/go-sdk/v7/auth/qbox github.com/qiniu/go-sdk/v7/storage github.com/tencentyun/cos-go-sdk-v5 Standard library imports bytes context errors fmt io net/http net/url os time