| TYPE | NAME | DESCRIPTION |
|---|---|---|
| INT32 | run_mode | non-interactive |
| INT32 | total_steps | total number of steps (# of layers-1 to apply the related plug-in) |
| FLOAT | current_step | current (for linear iterations this is the layerstack position, otherwise some value inbetween) |
| INT32 | len_struct | length of stored data structure with id is equal to the plug_in proc_name |