}

		for pname := range allPolicies {
			if _, ok := policyStats[pname]; !ok {
				policyStats[pname] = make([]srPolicy, numSites)
			}

			// if pname is not present in the map, the zero value
			// will be returned.
			pi := sri.Policies[pname]
			policyStats[pname][i] = srPolicy{SRIAMPolicy: pi, DeploymentID: sri.DeploymentID}
		}

		Type:      histogramMetric,
	}
}

func getBucketObjectVersionsMD() MetricDescription {
	return MetricDescription{
		Namespace: bucketMetricNamespace,
		Subsystem: objectsSubsystem,
		Name:      versionDistribution,
		Help:      "Distribution of object sizes in the bucket, includes label for the bucket name",
		Type:      histogramMetric,
	}
}