anchor.diff:  %% @doc Send a  node change update message to this module inside the dht_node.
   %%      Will be registered with the dht_node as a node change subscriber.
   %% @see dht_node_state:add_nc_subscr/3
  --spec send_node_change(Pid::comm:erl_local_pid(),
  +-spec rm_send_node_change(Pid::comm:erl_local_pid(),
                          OldNeighbors::nodelist:neighborhood(),
                          NewNeighbors::nodelist:neighborhood()) -> ok.
  -send_node_change(Pid, _OldNeighbors, NewNeighbors) ->
  +rm_send_node_change(Pid, _OldNeighbors, NewNeighbors) ->
       NewNode = nodelist:node(NewNeighbors),
       comm:send_local(Pid, {move, node_update, NewNode}).
   
  
positive.code:             dht_node_state:set_slide(
                State, succ, slide_op:set_phase(NewSlideOp, wait_for_node_update));
          _ ->
              rm_loop:subscribe(self(), fun rm_loop:subscribe_node_change_filter/2, fun send_node_change/3),
              rm_loop:update_id(TargetId),
              dht_node_state:set_slide(
                State, succ, slide_op:set_phase(NewSlideOp, wait_for_node_update))
  
negative.code: 
  -export([process_move_msg/2,
           can_slide_succ/3, can_slide_pred/3,
           rm_pred_changed/2, rm_notify_new_pred/3, rm_send_node_change/3,
           make_slide/5,
           make_slide_leave/1, make_jump/4,
           check_config/0]).
  