1st: is it possible to make a pipeline component call another pipeline component (as a substep)

Should work as long as they are in the same file, you can however launch and wait any Task (see pipelines from tasks)

2nd: I am trying to call a function defined in the same script, but unable to import it. I passing the repo parameter to the component decorator, but no change, it always comes back with "No module named <module>" after my

from module import function

call, as if working on the top repository directory

try adding the function to ' helper_functions '
@PipelineDecorator.component(..., helper_functions=[my_func_here])