Add support for File and Folder upload

[MananGandhi1810]

Since Google AI Studio has offered functionalities to upload files and folders to the model for context, I request to add support for the same.

[nickf2k]

Hi, anyone work on this?

[wliumelb]

Gemini API has a size limit of 20MB for data.

Currently there is no way to use larger audio or video files in prompts.

[MrCsabaToth]

Why was this closed as not planned?

[MananGandhi1810]

This was negligence from my end, I thought @wliumelb was a maintainer of the repository. Reopening this issue.

[MrCsabaToth]

There's a ticket #211, without file upload it's impossible to handle videos or audio files

[natebosch]

Our current recommendation for use cases that need functionality beyond what is provided in this package is to use vertex AI through https://pub.dev/documentation/firebase_vertexai/latest/

[MrCsabaToth]

Started to move in that direction. Requires quite a refactoring tho.

[gitStanda]

Our current recommendation for use cases that need functionality beyond what is provided in this package is to use vertex AI through https://pub.dev/documentation/firebase_vertexai/latest/

Thank you for the recommendation. I noticed that Python, Node.js, and Go SDKs already support document/file API functionality. Given Flutter/Dart's significance in the Google ecosystem, is there an estimated timeline for implementing this feature in the Dart SDK directly?

While Firebase Vertex AI is a potential workaround, integrating Firebase into existing non-Firebase projects presents significant refactoring challenges. Many developers would benefit from having this functionality available in the standard Dart SDK, maintaining consistency with other language SDKs.