Fix
* Tests ([`fbd6586`](https://github.com/d-biehl/robotframework-libraryproxy/commit/fbd65863e00238e39e81756745e69e3193a777b4))
* Tests ([`51f434f`](https://github.com/d-biehl/robotframework-libraryproxy/commit/51f434ff72ffe451b9407bdb6018ac3055a2f9ae))
* Some code mypy smells ([`99b6150`](https://github.com/d-biehl/robotframework-libraryproxy/commit/99b615063d5006078d53ca8d0929277b55b7849a))