Akka.Cluster.Gossip.GetMember C# (CSharp) Метод

        public Member GetMember(UniqueAddress node)
        {
            return _membersMap.Value.GetOrElse(node, 
                Member.Removed(node)); // placeholder for removed member
        }

 internal static ImmutableList <ReachableMember> DiffReachable(Gossip oldGossip, Gossip newGossip)
 {
     if (newGossip.Equals(oldGossip))
     {
         return(ImmutableList.Create <ReachableMember>());
     }
     return
         (oldGossip.Overview.Reachability.AllUnreachable
          .Where(a => newGossip.HasMember(a) && newGossip.Overview.Reachability.IsReachable(a))
          .Select(a => new ReachableMember(newGossip.GetMember(a)))
          .ToImmutableList());
 }