}

	metrics := getHistogramMetrics(ttfbHist, getBucketTTFBDistributionMD(), false, false)
	// additional labels for +Inf for all histogram metrics
	if expPoints := len(labels) * (len(histBuckets) + 1); expPoints != len(metrics) {
		t.Fatalf("Expected %v data points when toLowerAPILabels=false but got %v", expPoints, len(metrics))
	}

	metrics = getHistogramMetrics(ttfbHist, getBucketTTFBDistributionMD(), true, false)

		Name:      tierRequestsFailure,
		Help:      "Number of requests to download object from warm tier that failed",
		Type:      counterMetric,
	}
)

func (t *tierMetrics) Report() []MetricV2 {
	metrics := getHistogramMetrics(t.histogram, tierTTLBMD, true, true)
	t.RLock()
	defer t.RUnlock()
	for tier, stat := range t.requestsCount {
		metrics = append(metrics, MetricV2{
			Description:    tierRequestsSuccessMD,

	extraLabels ...string,
) {
	if _, ok := m.descriptors[name]; !ok {
		panic(fmt.Sprintf("metric has no description: %s", name))
	}
	dummyDesc := MetricDescription{}
	metricsV2 := getHistogramMetrics(hist, dummyDesc, false, false)
mainLoop:
	for _, metric := range metricsV2 {
		for label, allowedValues := range filterByLabels {
			if !allowedValues.Contains(metric.VariableLabels[label]) {
				continue mainLoop

		})
		return
	})
	return mg
}

// getHistogramMetrics fetches histogram metrics and returns it in a []Metric
// Note: Typically used in MetricGroup.RegisterRead
//
// The toLowerAPILabels parameter is added for compatibility,
// if set, it lowercases the `api` label values.