Passing parameters to Report Writer script

Summary:

I'm trying to create a universal data extraction process that will utilize Report Writer. The idea is to have a standard extract layout (placement of dimensions in rows/pages/columns) and pass into it names of alternate rollups that will have collections of members to be used in the extract, together with a file name containing the extract. The Report Writer seems to be the best option for it as it will allow to place members into pages/rows/columns and use Children constructs to pull the necessary lists.

I check scripting documentation https://docs.oracle.com/en/database/other-databases/essbase/21/esssr/report-writer.html#GUID-8D41775E-0F55-4058-9AA5-DB1780E009A7