This repository contains a fork of the official Gemini (from commit 419a7cef81188a2d715b3853113a3213516d6a4a link) which has been modified to be compatible with python3.8. The changes that were required were to replace the usage of built in types (dict, tuple, and list) for type specification with their counterparts from the Typing library. Secondly, Iterator, Mapping needed to come from the typing library rather than from collections.abc. A summary of changes is viewable in the git history, see this commit.
The source of the work is the owners of the original repository (https://github.com/google-gemini/generative-ai-python)