Thus, the return data from step 2 needs to be available somewhere to be used in step 3.

Yep 🙂

It will serialize the data on the dict?

I thought it will just point to a local file location where you have the data 🙂

I didn’t know that each steps runs in a different process

Actually ! you can run them as functions as well, try:
if __name__ == '__main__': PipelineDecorator.debug_pipeline() # call pipeline function hereIt will just run them as functions (return values included)