if err != nil {
		return
	}
	addGauge := func(desc *metrics.Desc, pvcRef *stats.PVCReference, v float64, lv ...string) {
		lv = append([]string{pvcRef.Namespace, pvcRef.Name}, lv...)
		ch <- metrics.NewLazyConstMetric(desc, metrics.GaugeValue, v, lv...)
	}
	allPVCs := sets.Set[string]{}
	for _, podStat := range podStats {
		if podStat.VolumeStats == nil {
			continue
		}

			res[key] = *row.Counter.Value
		}
	}
	return res
}

func toMetricKey(row *dto.Metric, metric *dto.MetricFamily) metricKey {
	kvs := []attribute.KeyValue{}
	for _, lv := range row.Label {
		kvs = append(kvs, attribute.String(*lv.Name, *lv.Value))
	}
	key := metricKey{
		name:  *metric.Name,
		attrs: attribute.NewSet(kvs...),
	}
	return key
}

type Compare func(any) error

	f.rest.Record(-1)
}

func (f baseMetric) runRecordHook(value float64) {
	recordHookMutex.RLock()
	if rh, ok := recordHooks[f.name]; ok {
		lv := slices.Map(f.attrs, func(e attribute.KeyValue) LabelValue {
			return LabelValue{e}
		})
		rh.OnRecord(f.name, lv, value)
	}
	recordHookMutex.RUnlock()
}

func (f baseMetric) Register() error {
	return nil
}

func (f baseMetric) RecordInt(value int64) {

	return nil
}

func (d *derivedGauge) ValueFrom(valueFn func() float64, labelValues ...LabelValue) DerivedMetric {
	d.mu.Lock()
	defer d.mu.Unlock()
	lv := slices.Map(labelValues, func(e LabelValue) attribute.KeyValue {
		return e.keyValue
	})
	as := attribute.NewSet(lv...)
	d.attrs[as] = valueFn
	return d

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