anchor.diff:  	 hello_world/1,
   	 hello_world/2,
   	 get_tuple/1,
  -	 get_tuple/2,
  +	 'GetTuple'/3,
   	 get_dict/1,
  -	 get_dict/2
  +	 'GetDict'/3
   	]).
   
   %% gen_dbus callbacks
  
positive.code: -module(hello).
  
  -import(error_logger).
  -import(dberl.gen_dbus).
  
negative.code: handle_info({hello, [Id, Hello_message], From}, State) ->
      io:format("HelloWorld: callback ~p, ~p~n", [Id, Hello_message]),
      %%     on_click(17, 123),
      gen_dbus:reply(From, {ok, ["Hello callback", " from Erlang service.erl"]}),
  %%     gen_dbus:reply(From, {dbus_error, 'org.freedesktop.DBus.Error.Timeout', "Error from Erlang service.erl"}),
      {noreply, State};
  
  handle_info(Info, State) ->
  