I'm working on a custom (private) plugin vary tailored to our product. The plugin adapts its feature set based on the abilities of the internal server it connects to. I was thinking of implementing an option in my plugin, e.g. `--show-our-superduper-help`.

This could go out to the server, fetch it's config and print the abilities which can be used in the test suite for that server.

I looked at how the regular `--help` is implemented:

It uses the HelpAction which raises a PrintHelp exception to shortcut on running the test suite.

Not really fond of implementing something similar. How could I get a similar behaviour for only printing the (server specific) config of my plugin?