Real-Time Speech-to-Text Translation Support

### Description of the feature request:

Instead of waiting for a turn of speech to complete (VAD mode), would it be possible to stream the generated results in real-time?

### What problem are you trying to solve with this feature?

Suppose I am currently in a Japanese interview, but my Japanese skills are not very strong. I would like to build a app with the `Gemini Multimodal API` to assist me with real-time speech-to-text translation.

### Any other information you'd like to share?

_No response_