A list of resources that complies with the S3 XML spec
Each resource has a tagset with attributes. Most of the tags are attributes specified when the resource was created.
cs3.parent is the name of the parent of the resource: a storage bucket name for an object group, or an object group name for a view.
cs3.bucket-type the type of bucket, which can be physical for a native S3/GCP bucket, object-group, or view.