anchor.diff:  	},
   	{ok, NewState}.
   
  -% -----------------------------------------------------------------------------
  +% -------------------------------------------------------------------------
   
   handle_call({user, Username}, _From, State) ->
   	Info = handle_userinfo(Username, State),
  
positive.code: 	gen_server:call(Pid, {user, Username}).
  
  
  %% ----------------------------------------------------------------------------
  %% gen_server
  %% ----------------------------------------------------------------------------
  
  init({gen_server, [Host] = _Args}) ->
  	State = #state{
  
negative.code: handle_call(_, _From, State) ->
      {reply, invalid, State}.
  
  % -------------------------------------------------------------------------
  
  handle_cast(_, State) ->
      {noreply, State}.
  
  % -------------------------------------------------------------------------
  
  handle_info(_, State) ->
      {noreply, State}.
  
  % -------------------------------------------------------------------------
  
  terminate(Reason, _State) ->
  	?info("Terminating due to ~p.", [Reason]),
  