Replace Google Vertex AI with Google AI Studio API in my python code

I'm seeking a Python expert to replace Google Vertex AI in my existing code with the Google AI Studio API. This updated code should also be able to support multiple APIs at the same time for improved flexibility and performance. You’ll also need to enhance the code with other free models or locally hosted models to boost accuracy and overall output quality. debug everything so it everything works perfectly fine and add the relivent buttons on the GUI for easy access.

https://docs.google.com/document/d/1CqgOBdqDD78SzUn-eP5EP0t1ay4hW0SxNZgEh9PGHKY/edit?usp=sharing
this docs file is a detailed version of all the things I want you to do its very long as I explain everything piece by piece in detail so at the end there wont be any miss or the freelancer complaining I added more latter on

- Additional Responsibilities:
- Integrate specific GitHub projects I have, to further optimize results.
- Make code improvements for readability, efficiency and maintainability. The final product should be clean, well-documented and easy to comprehend.

- Ideal Candidate:
- Proficient in Python and familiar with Google AI Studio API.
- Experienced in working with multiple APIs.
- Able to effectively integrate and utilize free models and GitHub projects.
- Capable of conducting research to find additional tools or models for further enhancement.