public long getCacheListenerCallsAvgLatency() {
    return listenerCallsAvgLatency.getAverageLatency();
  }
This class acts as a bridge between a Region and RegionMBean This also listens for statistics
changes and update its value accordingly

@param <K>
@param <V>
geode-core/src/main/java/org/apache/geode/management/internal/beans/RegionMBeanBridge.java