ActorSystem
TestServiceEndpoint.swift:5typealias ActorSystem = DistributedSystemtypealias ActorSystem = DistributedSystemimport TestMessagesdistributed actor TestServiceEndpointclass DistributedSysteminit(_ service: any TestableService, in actorSystem: TestServiceEndpoint.ActorSystem) throws static var serviceName: String { get }distributed func doNothing() async throws distributed func getMonster() async throws -> Monster distributed func handleConnectionState(_ state: ConnectionState) async throws distributed func handleMonsters(array monsters: [Monster]) async throws distributed func openStream(byRequest request: OpenRequest) async throws typealias SerializationRequirement = Transferable