anchor.diff:                  Other ->
                       Other
               end,
  -
               ok = case Ans of
                        ok ->
                            end_disk_op(Uuid, Pid, ModelName, Op, Level);
  
positive.code:                 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)
          end,
  
          {ok, SleepTime} = application:get_env(?APP_NAME, cache_to_disk_delay_ms),
  
negative.code:         case LastUser of
              Owner ->
                  true;
              non ->
                  true;
              _ ->
                  false
          end
      end,
      delete(Level, Uuid, Pred).
  %%--------------------------------------------------------------------
  %% @private
  %% @doc
  