text: create or replace package flow_reservations
  accessible by (flow_api_pkg, flow_engine)
  as 
  
      procedure reserve_step
      ( p_process_id         in flow_processes.prcs_id%type
      , p_subflow_id         in flow_subflows.sbfl_id%type
      , p_reservation        in flow_subflows.sbfl_reservation%type
      , p_called_internally  in boolean default false
      );
  
      procedure release_step
      ( p_process_id         in flow_processes.prcs_id%type
      , p_subflow_id         in flow_subflows.sbfl_id%type
      , p_called_internally  in boolean default false
      );
  
  end flow_reservations;
  /
  