If a props is returned it is created as a child of the core cluster daemon on cluster startup. It should then handle downing using the regular Cluster APIs. The actor will run on the same dispatcher as the cluster actor if dispatcher not configured. May throw an exception which will then immediately lead to Cluster stopping, as the downing provider is vital to a working cluster.

Props DowningActorProps { get; }

abstract DowningActorProps : Props with get