PythonProcess LaunchConfig does not work with the args.

[ethanluoyc]

Hi, currently trying to use the multi_processing PythonProcess's args argument will throw an error because of of call to

https://github.com/deepmind/launchpad/blob/master/launchpad/nodes/python/flags_utils.py#L28

which includes the line.

FLAGS['lp_dummy_config'].flag_type(): {},

The lp_dummy_config flag is not defined. I suspect this happened because the OSS version does not export this flag. Is it possible to fix this issue?

Best,
Yicheng