Realtime: Twilio example

[rm-openai]

---

• Realtime: forward all raw model events #1252
• -> Realtime: Twilio example #1216
• Realtime: only cancel response if necessary #1243
• Realtime: enable a playback tracker #1242

[seratch]

need to resolve mypy warnings and python 3.9 runtime errors but overall i don't have anything to mention so far

[sibblegp]

@rm-openai Deeply appreciate your taking the time to figure this out.

[sibblegp]

@rm-openai When you have a moment, will you explain what is so different about this it needed all this extra work to get the "audio_interrupted" event?

I'm also setting up my own in-app voice which will need interruption. Does this mean I'll need to send and handle "mark" events similar to this or will it work more like your demos?

Thanks!