anchor.diff:      stack_fun(ClusterId, Object).
   
   
  -%% Store stacked objects
  -%%
  +%% @doc Store stacked objects
   -spec(store(ClusterId, CompressedObjs) ->
                {ok, [#?METADATA{}]} | {error, any()} when ClusterId::atom(),
                                                           CompressedObjs::binary()).
  
positive.code: 
  
  %% @doc Remove a container from the supervisor
  %%
  -spec(stop(Id) ->
               ok | {error, any()} when Id::atom()).
  stop(Id) ->
  
negative.code: -spec(stack_fun(atom(), #?OBJECT{}) ->
               ok | {error, any()}).
  stack_fun(ClusterId, #?OBJECT{addr_id = AddrId,
                                key = Key} = Object) ->
      case leo_cluster_tbl_conf:get() of
          {ok, #?SYSTEM_CONF{
                   cluster_id = MDC_ClusterId,
  