The token used to authenticate when fetching Python distributions from https://github.com/actions/python-versions. When running this action on github.com, the default value is sufficient. When running on GHES, you can pass a personal access token for github.com if you are experiencing rate limiting.
When 'true', a version range passed to 'python-version' input will match prerelease versions if no GA versions are found. Only 'x.y' version range is supported for CPython.
Version range or exact version of Python or PyPy to use, using SemVer's version range syntax. Reads from .python-version if unset.