Video Metadata Parameters Not Supported in LangChain Google GenAI Integration

[orelkabetz]

Hi LangChain team,
I'm working with the langchain-google-genai integration (version 2.1.9) and I've encountered a limitation regarding video metadata parameters that are supported in the native Google GenAI client but not available through LangChain.
Issue:
When using video content with the LangChain integration, I cannot pass video metadata parameters like start_offset, end_offset, and fps that are supported in the native google.genai client.

Is there a planned timeline for supporting video metadata parameters in the LangChain Google GenAI integration?
Are there any workarounds currently available to achieve the same functionality?
Is this feature on your roadmap, and if so, which version might include it?
Use Case:
This functionality is crucial for video analysis tasks where we need to analyze specific time segments of videos, which is a common requirement in content analysis applications.
Environment:
langchain: 0.3.27
langchain-google-genai: 2.1.9
google-genai: 1.30.0
Thank you for your time and any insights you can provide!

[Symbolk]

Same for langchain_google_vertexai, and this revils a big lagging gap between wrappers and the official SDK, pull request is expected maybe.