i have a question about realtime avatar

Hey HeyGen team,

Just got beta access to the HeyGen Realtime Avatar API and I've got a question. I noticed the avatar_type property only allows for 'talking_photo', which doesn't quite match what's shown on their website – they have full-on avatars there. How can I set it up so I get a live avatar instead of just a talking head? Any tips or insights would be super appreciated!