anchor.diff:                  TS = os:timestamp(),
                   V = #cache_controller{last_user = Pid, timestamp = TS, action = Op, last_action_time = TS},
                   Doc = #document{key = Uuid, value = V},
  -                create(Doc)
  +                create(Level, Doc)
           end,
   
           {ok, SleepTime} = application:get_env(?APP_NAME, cache_to_disk_delay_ms),
  
positive.code: %%--------------------------------------------------------------------
  -spec model_init() -> model_behaviour:model_config().
  model_init() ->
      ?MODEL_CONFIG(cc_bucket, get_hooks_config(),
          ?DEFAULT_STORE_LEVEL, ?DEFAULT_STORE_LEVEL, false).
  
  %%--------------------------------------------------------------------
  %% @doc
  
negative.code:         case LastUser of
              Owner ->
                  true;
              non ->
                  true;
              _ ->
                  false
          end
      end,
      delete(Level, Uuid, Pred).
  %%--------------------------------------------------------------------
  %% @private
  %% @doc
  