anchor.diff:  	Reply = ok,
   	{reply, Reply, State}.
   
  -%%--------------------------------------------------------------------
   %% @private
   %% @doc
   %% Handling cast messages
  
positive.code: 	lager:warning("unexpected info: Info='~p', State='~p'", [Info, lager:pr(State,?MODULE)]),
  	{noreply, State}.
  
  %%--------------------------------------------------------------------
  %% @private
  %% @doc
  %% This function is called by a gen_server when it is about to
  
negative.code: %%% API
  %%%===================================================================
  
  %% @doc
  %% Starts the server
  %%
  %% @spec start_link() -> {ok, Pid} | ignore | {error, Error}
  %% @end
  start_link() ->
  	lager:debug("start link"),
  	gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
  