// WalkVersionsSortOrder represents the sort order in which versions of an
// object should be returned by ObjectLayer.Walk method
type WalkVersionsSortOrder uint8

const (
	// WalkVersionsSortAsc - Sort in ascending order of ModTime
	WalkVersionsSortAsc WalkVersionsSortOrder = iota
	// WalkVersionsSortDesc - Sort in descending order of ModTime
	WalkVersionsSortDesc
)

	}

	// Calculate full object size.
	var objectSize int64

	// Calculate consolidated actual size.
	var objectActualSize int64

	// Order online disks in accordance with distribution order.
	// Order parts metadata in accordance with distribution order.
	onlineDisks, partsMetadata = shuffleDisksAndPartsMetadataByIndex(onlineDisks, partsMetadata, fi)

	// Save current erasure metadata for validation.

	// Reorder online disks based on erasure distribution order.
	// Reorder parts metadata based on erasure distribution order.
	onlineDisks, metaArr = shuffleDisksAndPartsMetadataByIndex(onlineDisks, metaArr, fi)

	// For negative length read everything.
	if length < 0 {
		length = fi.Size - startOffset
	}

		TagSet: &ObjectTagSet{},
	}

	var list []tags.Tag
	for k, v := range ot.ToMap() {
		list = append(list, tags.Tag{
			Key:   k,
			Value: v,
		})
	}
	// Always return in sorted order for tags.
	sort.Slice(list, func(i, j int) bool {
		return list[i].Key < list[j].Key
	})
	otags.TagSet.Tags = list

	writeSuccessResponseXML(w, encodeResponse(otags))
}