Issue - merge_multiepisodes.py not allowing --composite_thumb

[theimmortal68]

The script works with just merging and renumbering. But when I add the --composite_thumb option I get this message:

usage: merge_multiepisodes.py [-h] --library LIBRARY --show SHOW [--renumber] [--composite_thumb] merge_multiepisodes.py: error: unrecognized arguments: --composite-thumb

I am running the scripts on Linux with python 3.9.16.