How to perform pull request using GitPython?

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