anchor.diff:  
   
   %% @doc Remove a container from the supervisor
  -%%
   -spec(stop(Id) ->
                ok | {error, any()} when Id::atom()).
   stop(Id) ->
  
positive.code: %% API
  %%--------------------------------------------------------------------
  %% @doc Add a container into the supervisor
  %%
  -spec(start_link() ->
               ok | {error, any()}).
  start_link() ->
  
negative.code:     stack_fun(ClusterId, Object).
  
  
  %% @doc Store stacked objects
  -spec(store(ClusterId, CompressedObjs) ->
               {ok, [#?METADATA{}]} | {error, any()} when ClusterId::atom(),
                                                          CompressedObjs::binary()).
  