RpcHostService
A service whose methods may return other @KsService sub-services.
Extend this instead of RpcService when any @KsMethod returns a type annotated with @KsService. The compiler plugin enforces this at compile time and produces a clear error if the wrong tier is used.
HTTP transports can host RpcHostService instances (sub-service outputs are multiplexed over the same connection), but cannot host RpcBidiService.