PeterLombaers

What is the output you get when you do `pip freeze` on the command line? This should give you a list of version numbers of all python packages. And what...

You can copy how the [entrypoint](https://github.com/asreview/asreview-insights/blob/873c93fe6fb998d071351586f6ffc85b4518ce67/asreviewcontrib/insights/entrypoint.py#L86) does it, indeed using `_iter_states`. If we actually use `_iter_states` in one of the examples, we should make it public though. Also, I guess...