Added Google GenAI Embeddings

[yihyang]

Added Google GenAI Embeddings

• Langchain Google GenAI Embeddings doc: https://python.langchain.com/api_reference/google_genai/embeddings/langchain_google_genai.embeddings.GoogleGenerativeAIEmbeddings.html#langchain_google_genai.embeddings.GoogleGenerativeAIEmbeddings

[Dual-0]

the new gemini-embedding-exp-03-07 over Gemini API would be nice too
https://ai.google.dev/gemini-api/docs/models#gemini-embedding

[falkenbt]

This will only work with an API key and not via Vertex API, correct? Would be really nice to have this for Vertex as well.

[yihyang]

@Dual-0 setting the environment variable EMBEDDINGS_MODEL to models/gemini-embedding-exp-03-07 will allow it to use gemini-embedding-exp-03-07 model

[yihyang]

@falkenbt yes this works with Google GenAI, I can add VertexAI support in Subsequent PRs

[yihyang]

@falkenbt I've implemented VertexAI support in this PR: #154

[falkenbt]

wow that was fast, thank you!

[Dual-0]

@Dual-0 setting the environment variable EMBEDDINGS_MODEL to models/gemini-embedding-exp-03-07 will allow it to use gemini-embedding-exp-03-07 model

with EMBEDDINGS_PROVIDER=google or and EMBEDDINGS_MODEL=models/gemini-embedding-exp-03-07:

  File "/app/app/config.py", line 234, in <module>
    EMBEDDINGS_PROVIDER = EmbeddingsProvider(
  File "/usr/local/lib/python3.10/enum.py", line 385, in __call__
    return cls.__new__(cls, value)
  File "/usr/local/lib/python3.10/enum.py", line 710, in __new__
    raise ve_exc
ValueError: 'google' is not a valid EmbeddingsProvider

or google_genai

...
ValueError: 'google_genai' is not a valid EmbeddingsProvider

only with EMBEDDINGS_MODEL=models/gemini-embedding-exp-03-07:

openai.BadRequestError: Error code: 400 - {'error': {'message': 'invalid model ID', 'type': 'invalid_request_error', 'param': None, 'code': None}}

I will wait for merge...

[danny-avila]

Thank you for the PR, please address merge conflicts.

[yihyang]

@danny-avila should I rename this to make the naming consistent, similar to google_genai?

Suggested change

	GOOGLE_VERTEXAI = "vertexai"
	GOOGLE_VERTEXAI = "google_vertexai"

[yihyang]

@danny-avila thanks for merging the previous PR, I've resolved the conflict here: c2ca282