Add MetaAI Provider and some small improvments

[hlohaus]

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[github-actions]

Hello H Lohaus,

Thank you for your contribution to the project. I've reviewed your pull request titled "Add MetaAI Provider and some small improvements." Here's the feedback:

General Observations:

• The addition of the MetaAI provider is a significant update.
• Renaming the example files to be under the etc/examples directory improves the project structure.
• The introduction of the needs_auth attribute in the BingCreateImages provider is a good security measure.

Specific Feedback:

• In api.py, the stream handling for the MetaAI provider looks robust. However, ensure that the endpoint is active and can handle the expected load.
• The renaming of files is executed correctly with proper similarity indexes.
• In Ecosia.py, the addition of a new model "green" is noted. Make sure to document what this model represents and how it differs from the default.
• In MetaAI.py, the async generator pattern is well implemented. The use of uuid for generating unique conversation IDs is a good practice.
• The needs_auth flag addition in BingCreateImages.py is crucial, but make sure to handle the authentication flow properly.
• There's a typo correction from lebel to label in Groq.py, which is a good catch.
• The restructuring of the API initialization in __init__.py seems to streamline the setup process.

Suggestions:

• Ensure that all new dependencies are added to the project's requirements file.
• Consider adding unit tests for the new provider to ensure its stability and performance.
• It would be beneficial to add a description in the pull request to outline the changes and their impact on the project.

Overall, the pull request is well-structured and introduces valuable features to the project. Great work!

Please address the above feedback before we can merge your changes.

Best regards,
g4f Copilot