if len(m) == 0 {
		return []MetricV2{}
	}

	metrics = make([]MetricV2, 0, len(m))
	for i := range m {
		metrics = append(metrics, m[i].clone())
	}
	return metrics
}

func getClusterBucketsTotalMD() MetricDescription {
	return MetricDescription{
		Namespace: clusterMetricNamespace,
		Subsystem: bucketsSubsystem,
		Name:      total,
		Help:      "Total number of buckets in the cluster",