@Override
    public void record(MetricConfig config, double value, long timeMs) {
        this.stat.record(config, value, timeMs);
    }
The rate of the given quantity. By default this is the total observed over a set of samples from a sampled statistic
divided by the elapsed time over the sample windows. Alternative {@link SampledStat} implementations can be provided,
however, to record the rate of occurrences (e.g. the count of values measured over the time interval) or other such
values.
clients/src/main/java/org/apache/kafka/common/metrics/stats/Rate.java