private final Path path;

    protected final Date timestamp;

    private boolean merged;

    @Deprecated
    protected MavenMetadata(Metadata metadata, File file, Date timestamp) {
        this(metadata, file != null ? file.toPath() : null, timestamp);
    }

    protected MavenMetadata(Metadata metadata, Path path, Date timestamp) {
        this.metadata = metadata;
        this.path = path;

	TaggingTimestamp = "tagging-timestamp"
	// ObjectLockRetentionTimestamp - the last time a object lock metadata modification happened on this cluster for this object version
	ObjectLockRetentionTimestamp = "objectlock-retention-timestamp"
	// ObjectLockLegalHoldTimestamp - the last time a legal hold metadata modification happened on this cluster for this object version
	ObjectLockLegalHoldTimestamp = "objectlock-legalhold-timestamp"

	MaximumFileSize int64

	// FileNameFunc specifies the name a new file will take.
	// FileNameFunc must ensure collisions in filenames do not occur.
	// Do not rely on timestamps to be unique, high throughput writes
	// may fall on the same timestamp.
	// Eg.
	// 	2020-03-28_15-00-945-<random-hash>.log
	// When FileNameFunc is not specified, DefaultFilenameFunc will be used.
	FileNameFunc func() string

| `minio_api_requests_rejected_header_total`     | `counter` | Total number of requests rejected for invalid header    | `type,pool_index,server`         |
| `minio_api_requests_rejected_timestamp_total`  | `counter` | Total number of requests rejected for invalid timestamp | `type,pool_index,server`         |
| `minio_api_requests_rejected_invalid_total`    | `counter` | Total number of invalid requests                        | `type,pool_index,server`         |

	Cached  bool // true only when we are requesting a cached response instead of hitting the disk for example ListBuckets() call.
}

// SetReplicaStatus sets replica status and timestamp for delete operations in ObjectOptions
func (o *ObjectOptions) SetReplicaStatus(st replication.StatusType) {
	o.DeleteReplication.ReplicaStatus = st
	o.DeleteReplication.ReplicaTimeStamp = UTCNow()
}

	writeSuccessResponseJSON(w, dataUsageInfoJSON)
}

func lriToLockEntry(l lockRequesterInfo, now time.Time, resource, server string) *madmin.LockEntry {
	entry := &madmin.LockEntry{
		Timestamp:  l.Timestamp,
		Elapsed:    now.Sub(l.Timestamp),
		Resource:   resource,
		ServerList: []string{server},
		Source:     l.Source,
		Owner:      l.Owner,
		ID:         l.UID,
		Quorum:     l.Quorum,
	}
	if l.Writer {

			srcTimestamp := dstOpts.ReplicationSourceTaggingTimestamp
			if !srcTimestamp.IsZero() {
				ondiskTimestamp, err := time.Parse(time.RFC3339Nano, lastTaggingTimestamp)
				// update tagging metadata only if replica  timestamp is newer than what's on disk
				if err != nil || (err == nil && ondiskTimestamp.Before(srcTimestamp)) {
					srcInfo.UserDefined[ReservedMetadataPrefixLower+TaggingTimestamp] = srcTimestamp.UTC().Format(time.RFC3339Nano)

	// Construct the final presigned URL.
	return nil
}

// preSignV2 - presign the request in following style.
// https://${S3_BUCKET}.s3.amazonaws.com/${S3_OBJECT}?AWSAccessKeyId=${S3_ACCESS_KEY}&Expires=${TIMESTAMP}&Signature=${SIGNATURE}.
func preSignV2(req *http.Request, accessKeyID, secretAccessKey string, expires int64) error {
	// Presign is not needed for anonymous credentials.
	if accessKeyID == "" || secretAccessKey == "" {

        *   (since v2.7) `tf.nn.max_pool_with_argmax` gradient
        *   (since v2.7) `tf.raw_ops.DebugNumericSummary` and
            `tf.raw_ops.DebugNumericSummaryV2`
        *   (since v2.7) `tf.timestamp`. Throws `FailedPrecondition`
        *   (since v2.7) `tf.Variable.scatter_add` (and other scatter methods,
            both on ref and resource variables)

struct {
	x, y float64 ""  // an empty tag string is like an absent tag
	name string  "any string is permitted as a tag"
	_    [4]byte "ceci n'est pas un champ de structure"
}

// A struct corresponding to a TimeStamp protocol buffer.
// The tag strings define the protocol buffer field numbers;
// they follow the convention outlined by the reflect package.
struct {
	microsec  uint64 `protobuf:"1"`