Running scripts will error with "Missing option '--datamodule' / '-d'."

Scripts expect a datamodule parameter. This was done by having a python file per fold containing a datamodule variable. pyproject.toml defines entrypoints that return modules containing "datamodule" variable .

Commit 05bbb35f changed this by grouping all folds into a single module and renaming every datamodule variable to the name of the fold. Therefore, scripts do not receive a parameter named datamodule anymore, but ones named fold_0, fold_1, fold_2, etc. instead.

This results in the following error:

$ ptbench train -vv pasa shenzhen
Usage: ptbench train [OPTIONS] [CONFIG]...
Try 'ptbench train -?' for help.

Error: Missing option '--datamodule' / '-d'.