An access-control entry.
The name of the bucket.
The domain associated with the entity, if any.
The email address associated with the entity, if any.
The entity holding the permission, in one of the following forms:
The ID for the entity, if any.
HTTP 1.1 Entity tag for the access-control entry.
The kind of item this is. For bucket access control entries, this is always storage#bucketAccessControl.
The project team associated with the entity, if any.
The access permission for the entity.
The link to this access-control entry.