@Override
    public void snapShort(Map<String, Long> keyValMap, boolean includeZero) {
        getValue2Map(keyValMap, true, includeZero);
    }
Initial Exponential Statistics for Time Histogram

@param metricName   metric name
@param prefix       the prefix of metric item
inlong-tubemq/tubemq-core/src/main/java/org/apache/inlong/tubemq/corebase/metric/impl/ESTHistogram.java