// The class of storage used to store the object.
	StorageClass string

	// UserMetadata user-defined metadata
	UserMetadata *Metadata `xml:"UserMetadata,omitempty"`
	UserTags     string    `xml:"UserTags,omitempty"`

	Internal *ObjectInternalInfo `xml:"Internal,omitempty"`
}

// CopyObjectResponse container returns ETag and LastModified of the successfully copied object

			UserDefined:      meta,
		}
	}
	for k, v := range objInfo.UserDefined {
		meta[k] = v
	}
	if len(objInfo.UserTags) != 0 {
		meta[xhttp.AmzObjectTagging] = objInfo.UserTags
	}
	// Set restore object status
	restoreExpiry := lifecycle.ExpectedExpiryTime(time.Now().UTC(), rreq.Days)
	meta[xhttp.AmzRestore] = completedRestoreObj(restoreExpiry).String()

		}
	}

	// Extract etag from metadata.
	objInfo.ETag = extractETag(fi.Metadata)

	// Add user tags to the object info
	tags := fi.Metadata[xhttp.AmzObjectTagging]
	if len(tags) != 0 {
		objInfo.UserTags = tags
	}

	// Add replication status to the object info
	objInfo.ReplicationStatusInternal = fi.ReplicationState.ReplicationStatusInternal

	// GetObjectInfo will return tag value as well
	oi, err := er.GetObjectInfo(ctx, bucket, object, opts)
	if err != nil {
		return nil, err
	}

	return tags.ParseObjectTags(oi.UserTags)
}

// TransitionObject - transition object content to target tier.
func (er erasureObjects) TransitionObject(ctx context.Context, bucket, object string, opts ObjectOptions) error {