Support For Akka Cluster Sharding Metrics

I see an old release note related to [kamon-akka-remote](https://github.com/kamon-io/kamon-akka-remote/releases/tag/v1.1.0), stating that cluster sharding metrics are experimentally added. But I don't see it referenced anywhere in the docs. Is it available? What should I do? I'm using Akka 2.10.