anchor.diff:  %%--------------------------------------------------------------------
   -callback handle_workflow_interrupted(
       workflow_engine:execution_id(),
  -    workflow_engine:execution_context()
  +    workflow_engine:execution_context(),
  +    undefined | interrupt_reason()
   ) ->
       progress_data_persistence().
   
  
positive.code:     ?END_EXECUTION. % engine does not distinguish reason of execution finish - ?END_EXECUTION is returned
                         % if processed lane is last lane as well as on error
  -type progress_data_persistence() :: save_progress | save_iterator | clean_progress.
  
  -export_type([handler/0, async_processing_result/0, handler_execution_result/0, prepare_lane_result/0,
      lane_stopped_callback_result/0, progress_data_persistence/0]).
  
  %%%===================================================================
  %%% Callbacks descriptions
  
negative.code:     term(),
      list()
  ) ->
      interrupt_reason().
  