const contextLogKey = contextKeyType("miniolog")

// KeyVal - appended to ReqInfo.Tags
type KeyVal struct {
	Key string
	Val string
}

// ObjectVersion object version key/versionId
type ObjectVersion struct {
	ObjectName string
	VersionID  string `json:"VersionId,omitempty"`
}

// ReqInfo stores the request info.
// Reading/writing directly to struct requires appropriate R/W lock.
type ReqInfo struct {

		err = msgp.WrapError(err)
		return o, err
	}
	if zb0001 != 4 {
		err = msgp.ArrayError{Wanted: 4, Got: zb0001}
		return o, err
	}
	bts, err = msgp.ReadExactBytes(bts, (x.VersionID)[:])
	if err != nil {
		err = msgp.WrapError(err, "VersionID")
		return o, err
	}
	x.ModTime, bts, err = msgp.ReadInt64Bytes(bts)
	if err != nil {
		err = msgp.WrapError(err, "ModTime")
		return o, err
	}
	{
		var zb0002 uint8

		if dstOpts.VersionID != "" && srcOpts.VersionID == dstOpts.VersionID {
			return z.serverPools[poolIdx].CopyObject(ctx, srcBucket, srcObject, dstBucket, dstObject, srcInfo, srcOpts, dstOpts)
		}
		// Destination is not versioned and source version ID is empty
		// perform an in-place update.
		if !dstOpts.Versioned && srcOpts.VersionID == "" {

			mustGetPutObjReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), ObjectOptions{
				Versioned: true,
			})
		if err != nil {
			t.Fatalf("Erasure Object upload failed: <ERROR> %s", err)
		}
		names[i] = ObjectToDelete{
			ObjectV: ObjectV{
				ObjectName: objInfo.Name,
				VersionID:  objInfo.VersionID,
			},
		}
	}
	names = append(names, ObjectToDelete{
		ObjectV: ObjectV{

	Meta map[string]string `json:"meta,omitempty"`
	// Captures all the individual object `xl.meta`.
	Parts []ObjectPartInfo `json:"parts,omitempty"`

	// Dummy values used for legacy use cases.
	VersionID string `json:"versionId,omitempty"`
	DataDir   string `json:"dataDir,omitempty"` // always points to "legacy"
}

// StatInfo - carries stat information of the object.
type StatInfo struct {

	ETag         string            `json:"eTag,omitempty"`
	ContentType  string            `json:"contentType,omitempty"`
	UserMetadata map[string]string `json:"userMetadata,omitempty"`
	VersionID    string            `json:"versionId,omitempty"`
	Sequencer    string            `json:"sequencer"`
}

// Metadata represents event metadata.
type Metadata struct {
	SchemaVersion   string `json:"s3SchemaVersion"`

							bucket:    bucket,
							object:    fiv.Name,
							versionID: ver.VersionID,
						}, madmin.HealItemObject)
						stopFn(int(ver.Size))
						if !isErrObjectNotFound(err) && !isErrVersionNotFound(err) {
							if err != nil {
								scannerLogIf(ctx, fmt.Errorf("%w, Object %s/%s/%s", err, bucket, fiv.Name, ver.VersionID))
							}
						}
						if err == nil {
							successVersions++

`xl.meta` carries three types of object entries which designate the type of version object stored.

- ObjectType (default)
- LegacyObjectType (preserves existing deployments and older xl.json format)
- DeleteMarker (a versionId to capture the DELETE sequences implemented primarily for AWS spec compatibility)

				args = args + "bucket=" + entry.API.Args.Bucket
			}
			if entry.API.Args.Object != "" {
				args = args + ", object=" + entry.API.Args.Object
			}
			if entry.API.Args.VersionID != "" {
				args = args + ", versionId=" + entry.API.Args.VersionID
			}
			if len(entry.API.Args.Objects) > 0 {
				args = args + ", multiObject=true, numberOfObjects=" + strconv.Itoa(len(entry.API.Args.Objects))
			}
			if len(args) > 0 {

	report := func() {
		t.Helper()
		// t.Logf("versions (%d): len = %d", counter, len(xl.versions))
		counter++
	}
	fi := FileInfo{
		Volume:           "volume",
		Name:             "object-name",
		VersionID:        "00000000-0000-0000-0000-000000000001",
		IsLatest:         true,
		Deleted:          false,
		TransitionStatus: "",
		DataDir:          "bffea160-ca7f-465f-98bc-9b4f1c3ba1ef",
		XLV1:             false,