anchor.diff:      end.
   
   
  +%%-------------------------------------------------------------------
  +%% @doc
  +%% Returns 'atm_store_iterator' allowing to iterate over all values produced by
  +%% store. Those values are not only items directly kept in store but also objects
  +%% associated/inferred from them (e.g. in case of file tree forest store entire
  +%% files subtree for each file kept in store will be traversed and returned).
  +%% @end
  +%%-------------------------------------------------------------------
   -spec acquire_iterator(atm_workflow_execution_env:record(), atm_store_iterator_spec:record()) ->
       atm_store_iterator:record().
   acquire_iterator(AtmWorkflowExecutionEnv, #atm_store_iterator_spec{
  
positive.code: 
  -type initial_value() :: atm_store_container:initial_value().
  
  % index() TODO WRITEME .
  -type index() :: binary().
  -type offset() :: integer().
  -type limit() :: pos_integer().
  
negative.code:     }).
  
  
  %%-------------------------------------------------------------------
  %% @doc
  %% Returns batch of items (and their indices) directly kept at store
  %% in accordance to specified view_opts().
  %% @end
  %%-------------------------------------------------------------------
  -spec view_content(
      atm_workflow_execution_ctx:record(),
      view_opts(),
  