public final Histogram newHistogram(String name, boolean biased, Map<String, String> tags) {
        return KafkaYammerMetrics.defaultRegistry().newHistogram(metricName(name, tags), biased);
    }
Creates a new MetricName object for gauges, meters, etc. created for this
metrics group.
@param name Descriptive name of the metric.
@param tags Additional attributes which mBean will have.
@return Sanitized metric name object.
server-common/src/main/java/org/apache/kafka/server/metrics/KafkaMetricsGroup.java