anchor.diff:      send_reply(Id, Target, Msg, Parents, Shepherd).
   
   %% @doc main routine. It spans a broadcast tree over the nodes in I
  --spec bulk_owner(State::dht_node_state:state(), Id::uid:global_uid(), I::intervals:interval(), Msg::comm:message(), Parents::[comm:mypid()]) -> ok.
  +-spec bulk_owner(State::dht_node_state:state(), Id::uid:global_uid(),
  +                 I::intervals:interval(), Msg::comm:message(),
  +                 Parents::[comm:mypid()]) -> ok.
   bulk_owner(State, Id, I, Msg, Parents) ->
   %%     log:pal("bulk_owner:~n self:~p,~n int :~p,~n rt  :~p~n", [dht_node_state:get(State, node), I, ?RT:to_list(State)]),
       Neighbors = dht_node_state:get(State, neighbors),
  
positive.code:     comm:send_local(DHTNode, {bulkowner, start, Id, intervals:all(), {bulk_distribute, Proc,
                                                          Pos, Msg, Data}}).
  
  -spec send_reply(Id::uid:global_uid(), Target::comm:mypid(), Msg::comm:message(), Parents::[comm:mypid()], Shepherd::comm:erl_local_pid()) -> ok.
  send_reply(Id, Target, {?send_to_group_member, Proc, Msg}, [], Shepherd) ->
      comm:send(Target, {bulkowner, reply, Id, Msg}, [{shepherd, Shepherd}, {group_member, Proc}]);
  send_reply(Id, Target, Msg, [], Shepherd) ->
  
negative.code: send_reply(Id, Target, Msg, [Parent | Rest], Shepherd) ->
      comm:send(Parent, {bulkowner, reply, Id, Target, Msg, Rest}, [{shepherd, Shepherd}]).
  
  -spec send_reply_failed(Id::uid:global_uid(), Target::comm:mypid(), Msg::comm:message(),
                          Parents::[comm:mypid()], Shepherd::comm:erl_local_pid(),
                          FailedPid::comm:mypid()) -> ok.
  send_reply_failed(_Id, Target, Msg, [], _Shepherd, Target) ->
      log:log(warn, "[ ~p ] cannot send bulkowner_reply with message ~p (target node not available)",
              [pid_groups:pid_to_name(self()), Msg]);
  