Imports
- github.com/aliyun/aliyun-oss-go-sdk/oss
- github.com/aws/aws-sdk-go/aws
- github.com/aws/aws-sdk-go/aws/credentials
- github.com/aws/aws-sdk-go/aws/session
- github.com/aws/aws-sdk-go/service/s3
- github.com/baidubce/bce-sdk-go/bce
- github.com/baidubce/bce-sdk-go/services/bos
- github.com/baidubce/bce-sdk-go/services/bos/api
- github.com/tencentyun/cos-go-sdk-v5
- golang.org/x/sync/errgroup