## Pull Request Checklist

- [ ] Edit the `master` section of `CHANGELOG.md` to include a description of
  the change being made.
- [ ] Add [mypy type
  annotations](https://certbot.eff.org/docs/contributing.html#mypy-type-annotations)
  for any functions that were added or modified.
- [ ] Include your name in `AUTHORS.md` if you like.