Implemented Gemini (#1490)

[into-the-night]

Description

Added support for Gemini using google-generativeai module. (sorry it took so long 👍)

Fixes #1490

Type of change

• [✅] New feature (non-breaking change which adds functionality)
• [✅] Documentation update

How Has This Been Tested?

Also added unit test for Gemini in tests/llms/test_gemini_llm.py

Please delete options that are not relevant.

• [✅] Unit Test

Checklist:

• [✅] My code follows the style guidelines of this project
• [✅] I have performed a self-review of my own code
• [✅] I have commented my code, particularly in hard-to-understand areas
• [✅] I have made corresponding changes to the documentation
• [✅] My changes generate no new warnings
• [✅] I have added tests that prove my fix is effective or that my feature works
• [✅] New and existing unit tests pass locally with my changes
• [?] Any dependent changes have been merged and published in downstream modules
• [✅] I have checked my code and corrected any misspellings

Maintainer Checklist

• closes Gemini Support? #1490 (Replace xxxx with the GitHub issue number)
• Made sure Checks passed

[CLAassistant]

All committers have signed the CLA.

[into-the-night]

I have a doubt. I noticed there is already a Google AI mentioned in the docs (using litellm), should I add Gemini as a seperate page to the docs or update the Google AI page? @Dev-Khant

[Dev-Khant]

I have a doubt. I noticed there is already a Google AI mentioned in the docs (using litellm), should I add Gemini as a seperate page to the docs or update the Google AI page? @Dev-Khant

Hey Thanks for the PR, you should litellm gemini with your new doc page.

[Dev-Khant]

Make sure to make changes to mint.json for updating doc page.

[Dev-Khant]

Make sure that .lock file remains same as there is no change in pyproject.toml.

[into-the-night]

Make sure that .lock file remains same as there is no change in pyproject.toml.

I see there have been a few changes in the poetry.lock file as some packages have been updated, this is poetry's doing. When you say poetry add openai=^x.xx it shows openai ="^x.xx" in the pyproject.toml but actually installs the latest version of the package. Its fixed now.

[Dev-Khant]

Hey @into-the-night pyproject.toml still looks odd. Can you please check and remove changes from .toml and .lock files if not necessary.

[into-the-night]

Wow that was pretty sneaky but something new to learn about line-endings. here you go @Dev-Khant, no diffs in .toml and .lock files.

[Dev-Khant]

LGTM!! Thanks @into-the-night for the quick resolution and for the contribution!

[into-the-night]

Thank you so much for your patience😁 we go up brick by brick!