Using GPT-4o mini TTS with WebSockets

How can I use the new model “GPT-4o mini TTS” in the Realtime API with WebSockets?
I explored the Realtime api documentations and found nothing about this model there.
Shouldn’t openai let us use this model in in realtime api since we all know its same model as gpt4o audio just finetuned for text to speech generation?