I have a file that defines the flow instance as a global variable, which is later used for registering the flow. Something like this:

with Flow(...) as flow:
   x = Parameter(...)
   ...

Which is registered with:

prefect register -p flows/my_file.py --project "MyProject"

But now I dont want to have this flow as a global variable, because my tests need to do some settings before and I dont want to trigger any of the code within this context manager. I can easily move this to a function, and make it return the flow instance, but I dont know how to deal with the registration by command line. I mean, its possible to still use the register by command line, or do I need to make it now programmatically? Basically, I’m looking for a solution like this:

def main():
   with Flow(...) as flow:
      x = Parameter(...)
      ...
   return flow

Registering

prefect register -p flows/my_file.py:main --project "MyProject"

Maybe you can use the

if __name__ == __main__

instead and add flow.register() or call your function there?