@Override
    public void putEvent(final InternalStatisticEvent event) {
        putEvents(Collections.singletonList(event));
    }
Passes the internal statistic events to zero-many {@link InternalStatisticsService} instances
as defined by the docRefTypeToServiceMap
stroom-statistics/stroom-statistics-impl/src/main/java/stroom/statistics/impl/MultiServiceInternalStatisticsReceiver.java