Наследование: Akka.Remote.TestKit.MultiNodeConfig
        protected ClusterSingletonManagerLeaveSpec(ClusterSingletonManagerLeaveSpecConfig config) : base(config)
        {
            _first  = config.First;
            _second = config.Second;
            _third  = config.Third;

            _echoProxy = new Lazy <IActorRef>(() => Sys.ActorOf(ClusterSingletonProxy.Props(
                                                                    singletonManagerPath: "/user/echo",
                                                                    settings: ClusterSingletonProxySettings.Create(Sys)),
                                                                "echoProxy"));
        }
        protected ClusterSingletonManagerLeaveSpec(ClusterSingletonManagerLeaveSpecConfig config) : base(config)
        {
            _first = config.First;
            _second = config.Second;
            _third = config.Third;

            _echoProxy = new Lazy<IActorRef>(() => Sys.ActorOf(ClusterSingletonProxy.Props(
                singletonManagerPath: "/user/echo",
                settings: ClusterSingletonProxySettings.Create(Sys)),
                "echoProxy"));
        }