t.Fatalf("Failed with err: %v", err)
	}
	if len(gots) != len(wants) {
		t.Fatalf("Expected %d objects but got %d", len(wants), len(gots))
	}

	// Close expiry state's channel to inspect object versions enqueued for expiration
	close(workers[0])
	wg.Wait()
	for _, obj := range expired {
		switch obj.ObjectV.VersionID {
		case uuids[2].String(), uuids[3].String(), uuids[4].String():
		default:

	notificationEventsSkippedTotalMD    = NewCounterMD(notificationEventsSkippedTotal, "Events that were skipped to be sent to the targets due to the in-memory queue being full")
)

// loadClusterNotificationMetrics - `MetricsLoaderFn` for cluster notification metrics.
func loadClusterNotificationMetrics(_ context.Context, m MetricValues, _ *metricsCache) error {

)

// Redis constants
const (
	RedisFormat     = "format"
	RedisAddress    = "address"
	RedisPassword   = "password"
	RedisUser       = "user"
	RedisKey        = "key"
	RedisQueueDir   = "queue_dir"
	RedisQueueLimit = "queue_limit"

	EnvRedisEnable     = "MINIO_NOTIFY_REDIS_ENABLE"
	EnvRedisFormat     = "MINIO_NOTIFY_REDIS_FORMAT"
	EnvRedisAddress    = "MINIO_NOTIFY_REDIS_ADDRESS"

	auditTargetQueueLength = "target_queue_length"
	auditTotalMessages     = "total_messages"
	targetID               = "target_id"
)

var (
	auditFailedMessagesMD = NewCounterMD(auditFailedMessages,
		"Total number of messages that failed to send since start",
		targetID)
	auditTargetQueueLengthMD = NewGaugeMD(auditTargetQueueLength,
		"Number of unsent messages in queue for target",
		targetID)