WebRTC add_track is missing? Workaround suggestions?

Godot Version

4.3 Stable

Question

I wanted to use the WebRTCPeerConnection to also stream Video and Audio as this is generally possible in Javascript and in the WebRTC c-lib with addTrack ( RTCPeerConnection: addTrack() method - Web APIs | MDN ) but I am not able to find it in Godot. Is this not implemented?

How could I achieve?