OptionalbeforeThe bus this actor subscribes to.
OptionalbusThe message that will be configured in the bus for reporting failures.
This message may be a template string that contains references to the executed action.
For example, the following templated string is allowed:
"RDF dereferencing failed: no actors could handle ${action.handle.mediaType}"
The name for this actor.
Actor that must be registered in the bus before this actor.