getting an image from firestore and generating resposnse using genkit

[riush03]

Is your feature request related to a problem? Please describe.

I'm always frustrated when I have to manually fetch image URLs from Firestore and pass them to Genkit for generating descriptions. This process is cumbersome and prone to errors.

Describe the solution you'd like

I would like an integrated feature that allows Genkit to directly fetch images stored in Firestore by their IDs and use these images to generate descriptions. This would streamline the workflow and improve efficiency.

Describe alternatives you've considered

An alternative solution could be writing custom code to fetch images from Firestore and then use them with Genkit. However, this adds extra complexity and maintenance overhead.

Additional context

This feature would be particularly useful for applications that rely heavily on image data and require automated descriptions or processing. Integration with Firestore would make the process seamless and reduce the need for custom code.