anchor.diff:    
   diffs(Node) ->
     gen_server:call({sync_manager, Node}, diffs).
  +  
  +loaded() ->
  +  gen_server:call(sync_manager, loaded).
   
   %%====================================================================
   %% gen_server callbacks
  
positive.code: %% @doc Handling call messages
  %% @end 
  %%--------------------------------------------------------------------
  handle_call(running, _From, State = #state{running=Running}) ->
    {reply, Running, State};
    
  
negative.code: -behaviour(gen_server).
  
  %% API
  -export([start_link/0, stop/0, load/3, loaded/0, sync/5, done/1, running/0, running/1, diffs/0, diffs/1]).
  
  %% gen_server callbacks
  -export([init/1, handle_call/3, handle_cast/2, handle_info/2,
  