metrics = []MetricV2{
			{
				Description: MetricDescription{
					Namespace: nodeMetricNamespace,
					Subsystem: iamSubsystem,
					Name:      "last_sync_duration_millis",
					Help:      "Last successful IAM data sync duration in milliseconds",
					Type:      gaugeMetric,
				},
				Value: float64(atomic.LoadUint64(&globalIAMSys.LastRefreshDurationMilliseconds)),
			},
			{

		pub = block.Bytes
	}
	key, err := x509.ParsePKCS1PublicKey(pub)
	if err != nil {
		return nil, err
	}
	return key, nil
}

// getRawDataer provides an interface for getting raw FS files.
type getRawDataer interface {
	GetRawData(ctx context.Context, volume, file string, fn func(r io.Reader, host string, disk string, filename string, info StatInfo) error) error
}