// Describe sends the super-set of all possible descriptors of metrics
func (c *minioNodeCollector) Describe(ch chan<- *prometheus.Desc) {
	ch <- c.desc
}

// populateAndPublish populates and then publishes the metrics generated by the generator function.
func populateAndPublish(metricsGroups []*MetricsGroupV2, publish func(m MetricV2) bool) {
	for _, mg := range metricsGroups {
		if mg == nil {
			continue
		}