@Override
    public StatisticsManager createStatisticsManager(String prefix, String siddhiAppName, List<Element> elements) {
        return new SiddhiStatisticsManager(elements);
    }
Factory class to create Trackers and Managers.
modules/siddhi-core/src/main/java/io/siddhi/core/util/statistics/metrics/SiddhiMetricsFactory.java