Indicates whether the metric collector exports to Prometheus.
Limit on the number of groups maintained by this metric collector.
Session metric collectors can group metrics by property. Topic metric collectors can group metrics by topic type. This property places an upper limit on the number of groups that will be maintained for the metric collector.
For example, if a session metric collector groups by $SessionId and
maximumGroups is 10, then metrics will only be collected for the
first 10 sessions.
the name of the metric collector
The common base interface for metric collectors.