// All objects implement the Object interface.
type Object interface {
	Parent() *Scope // scope in which this object is declared; nil for methods and struct fields
	Pos() token.Pos // position of object identifier in declaration
	Pkg() *Package  // package to which this object belongs; nil for labels and objects in the Universe scope
	Name() string   // package local object name
	Type() Type     // object type

// It doesn't take into account whether the object is in a local (function) scope
// or not.
func (obj *object) Exported() bool { return isExported(obj.name) }

// Id is a wrapper for Id(obj.Pkg(), obj.Name()).
func (obj *object) Id() string { return Id(obj.pkg, obj.name) }

func (obj *object) String() string       { panic("abstract") }

}

// DeleteObjectTags - delete object tags from an existing object
func (er erasureObjects) DeleteObjectTags(ctx context.Context, bucket, object string, opts ObjectOptions) (ObjectInfo, error) {
	return er.PutObjectTags(ctx, bucket, object, "", opts)
}

// GetObjectTags - get object tags from an existing object

		// do an additional verification whether object exists when object is deletemarker and request
		// is from replication
		if opts.CheckDMReplicationReady {
			topts := opts
			topts.VersionID = ""
			goi, gerr := getObjectInfo(ctx, bucket, object, topts)
			if gerr == nil || goi.VersionID != "" { // object layer returned more info because object is deleted

				// Read last byte of object
				fmt.Sprintf("bytes=-%d", 1),
				// Read all but first byte of object
				"bytes=1-",
				// Read first half of object
				fmt.Sprintf("bytes=%d-%d", 0, objLen/2),
				// Read last half of object
				fmt.Sprintf("bytes=-%d", objLen/2),
				// Read middle half of object
				fmt.Sprintf("bytes=%d-%d", objLen/4, objLen*3/4),
				// Read 100MiB of the object from the beginning

				VersionSuspended: globalBucketVersioningSys.PrefixSuspended(object.parentBucket, object.name),
				UserDefined:      object.meta,
			})
		if err != nil {
			t.Fatalf("%s : %s", instanceType, err)
		}
		obj, err := obj.DeleteObject(context.Background(), object.parentBucket, object.name, ObjectOptions{
			Versioned:        globalBucketVersioningSys.PrefixEnabled(object.parentBucket, object.name),

}

func putOpts(ctx context.Context, bucket, object, vid string, hdrs http.Header, metadata map[string]string) (opts ObjectOptions, err error) {
	versioned := globalBucketVersioningSys.PrefixEnabled(bucket, object)
	versionSuspended := globalBucketVersioningSys.PrefixSuspended(bucket, object)

	vid = strings.TrimSpace(vid)
	if vid != "" && vid != nullVersionID {

		},
		{
			object: "object.json",
			header: http.Header{
				"Content-Type": []string{"application/json"},
			},
			result: false,
		},
		{
			object: "object.txt",
			header: http.Header{
				"Content-Type": []string{"text/plain"},
			},
			result: false,
		},
		{
			object: "object",
			header: http.Header{
				"Content-Type": []string{"text/something"},
			},
			result: false,

	return "Object not found: " + e.Bucket + "/" + e.Object
}

// MethodNotAllowed on the object
type MethodNotAllowed GenericError

func (e MethodNotAllowed) Error() string {
	return "Method not allowed: " + e.Bucket + "/" + e.Object
}

// ObjectLocked object is currently WORM protected.
type ObjectLocked GenericError

func (e ObjectLocked) Error() string {

	VersionsSort WalkVersionsSortOrder    // sort order for versions of the same object; default: Ascending order in ModTime
}

// ExpirationOptions represents object options for object expiration at objectLayer.
type ExpirationOptions struct {
	Expire bool
}

// TransitionOptions represents object options for transition ObjectLayer operation
type TransitionOptions struct {
	Status         string