Confusing list of existing retina face libraries

Question

There are quite a number of currently existing retina faces libraries with exactly same pip implementation.

1. Take for instance: pip install retinaface (https://pypi.org/project/retinaface/#description), with an import: from retinaface import RetinaFace

2. Another again is: pip install retina-face (https://pypi.org/project/retina-face/#description), with an import: from retinaface import RetinaFace

3. Another again is: pip install retinaface_pytorch (https://pypi.org/project/retinaface-pytorch/) from retinaface.pre_trained_models import get_model

Has anyone worked with these and how do you code if you intend to use different aspects of each library?