docs: private static Collection<String> getAvailableMetrics(Collection<? extends MetricStore.ComponentMetricStore> stores) {
  		Set<String> uniqueMetrics = new HashSet<>(32);
  		for (MetricStore.ComponentMetricStore store : stores) {
  			uniqueMetrics.addAll(store.metrics.keySet());
  		}
  		return uniqueMetrics;
  	}