anchor.diff:           multicall/4, multicall/5,
            nb_yield/1, nb_yield/2,
            cast/4,
  -         ping/1, status/0, node/0, nodes/0
  +         ping/1, status/0, node/0, nodes/0, port/0
           ]).
   
   -export([loop_1/4, loop_2/4]).
  
positive.code:     {ok, Nodes} = leo_rpc_client_manager:connected_nodes(),
      Nodes.
  
  
  %%--------------------------------------------------------------------
  %%  Internal Function
  
negative.code:                               [_Node, IP, Port] ->
                                    {list_to_atom(_Node), IP, list_to_integer(Port)};
                                [_Node, IP] ->
                                    {list_to_atom(_Node), IP, leo_rpc:port()};
                                [_Node] ->
                                    {list_to_atom(_Node), ?DEF_LISTEN_IP, leo_rpc:port()};
                                _ ->
                                    {[], 0}
                            end,
  