return
			}
		case "VariableLabels":
			var zb0003 uint32
			zb0003, bts, err = msgp.ReadMapHeaderBytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "VariableLabels")
				return
			}
			if z.VariableLabels == nil {
				z.VariableLabels = make(map[string]string, zb0003)
			} else if len(z.VariableLabels) > 0 {
				for key := range z.VariableLabels {
					delete(z.VariableLabels, key)
				}

	Type           MetricType
	Help           string
	VariableLabels []string

	// managed values follow:
	labelSet map[string]struct{}
}

func (md *MetricDescriptor) getLabelSet() map[string]struct{} {
	if md.labelSet != nil {
		return md.labelSet
	}
	md.labelSet = make(map[string]struct{}, len(md.VariableLabels))
	for _, label := range md.VariableLabels {
		md.labelSet[label] = struct{}{}
	}

		Value:          rm.Current,
		VariableLabels: cloneMSS(rm.Labels),
	})

	if requireAvgMax {
		avgName := MetricName(fmt.Sprintf("%s_avg", name))
		avgHelp := fmt.Sprintf("%s (avg)", help)
		metrics = append(metrics, MetricV2{
			Description:    getResourceMetricDescription(subSys, avgName, avgHelp),
			Value:          math.Round(rm.Avg*100) / 100,
			VariableLabels: cloneMSS(rm.Labels),
		})

		metrics = append(metrics, MetricV2{
			Description:    tierRequestsSuccessMD,
			Value:          float64(stat.success),
			VariableLabels: map[string]string{"tier": tier},
		})
		metrics = append(metrics, MetricV2{
			Description:    tierRequestsFailureMD,
			Value:          float64(stat.failure),
			VariableLabels: map[string]string{"tier": tier},
		})
	}
	return metrics
}