anchor.diff:  handle_message({receive_state, PeerMembership},
                  #state{pending=Pending,
                         membership=Membership,
  +                      member_parallelism=MemberParallelism,
                         connections=Connections0}=State) ->
       case ?SET:equal(PeerMembership, Membership) of
           true ->
  
positive.code:     %% Add to list of pending connections.
      Pending = [Node|Pending0],
  
      %% Trigger connection.
      Connections = establish_connections(Pending, Membership, Connections0),
  
      %% Return.
      {reply, ok, State#state{pending=Pending,
  
negative.code:     {ok, #state{actor=Actor,
                  pending=[],
                  membership=Membership,
                  member_parallelism=dict:new(),
                  connections=Connections,
                  down_functions=dict:new()}}.
  
  