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"));
}