I checked the [GitPython Tutorrial](https://un5q0202q6ua4emz1bzw2kgpdzg0m.julianrbryant.com/en/stable/tutorial.html) and [GitPython API Reference](https://un5q0202q6ua4emz1bzw2kgpdzg0m.julianrbryant.com/en/stable/reference.html) but was unable to find how to perform a pull request using GitPython.