code: private MetricFamilySamples fromTimer(List<Map.Entry<MetricName, Timer>> histogramsWithSameName) {
  		final SummaryMetricFamily summaryMetricFamily = getSummaryMetricFamily(histogramsWithSameName, "_seconds");
  		for (Map.Entry<MetricName, Timer> entry : histogramsWithSameName) {
  			addSummaryMetric(summaryMetricFamily, entry.getKey(), entry.getValue().getSnapshot(), SECONDS_IN_NANOS, entry.getValue().getCount());
  		}
  		return summaryMetricFamily;
  	}
docs: Export dropwizard Timer as a histogram. Use TIME_UNIT as time unit.