n.LastMinute = n.LastMinute.merge(rt.LastMinute)
	n.LastMinute = n.LastMinute.merge(o.LastMinute)
	n.LastHour = n.LastHour.merge(rt.LastHour)
	n.LastHour = n.LastHour.merge(o.LastHour)
	n.ErrCounts = make(map[string]int)
	maps.Copy(n.ErrCounts, rt.ErrCounts)
	for k, v := range o.ErrCounts {
		n.ErrCounts[k] += v
	}
	return n
}

				for arn, stat := range stats.Stats {
					labels := []string{bucketL, bucket, targetArnL, arn}
					m.Set(bucketReplLastHrFailedBytes, float64(stat.Failed.LastHour.Bytes), labels...)
					m.Set(bucketReplLastHrFailedCount, float64(stat.Failed.LastHour.Count), labels...)
					m.Set(bucketReplLastMinFailedBytes, float64(stat.Failed.LastMinute.Bytes), labels...)