Imports
- github.com/aws/aws-sdk-go/aws/awserr
- github.com/aws/aws-sdk-go/aws/credentials
- github.com/aws/aws-sdk-go/aws/request
- github.com/aws/aws-sdk-go/aws/session
- github.com/aws/aws-sdk-go/service/s3
- github.com/aws/aws-sdk-go/service/s3/s3manager
- github.com/tinode/chat/server/media
- github.com/tinode/chat/server/store
- github.com/tinode/chat/server/store/types