private static MetricSnapshot createWithMetrics(Map<MetricDimensions, MetricSet> data) {
        return new MetricSnapshot(0, 0, TimeUnit.MILLISECONDS, data);
    }
A snapshot of the metrics of this system in a particular time interval.

@author Simon Thoresen Hult
container-core/src/main/java/com/yahoo/container/jdisc/state/MetricSnapshot.java