Hello, I'm currently trying to write a Cython plugin for Pants 2.0.0b3 and it's unclear to me what the output type for the rule should be

Hi Noah, happy to help. Mind moving this to the #C01CQHVDMMW channel, please? First, what are you hoping to do with this plugin? For example, if you were not to use Pants, what commands are you currently using to run Cython? E.g. if you’re hoping for a whole pipeline of support, like running tests on your Cython code, or only to build your code with Cython

In fact if you can share your work-in-progress in a github repo, we're happy to take a look at it there if that makes sense to do.