API documentation

Readme of react-native-webrtc says " Anything about using RTCPeerConnection, RTCSessionDescription and RTCIceCandidate is like browser. Support most WebRTC APIs, please see the Document". However I have to read JS source code to know what api is actually supported. Some apis are deprecated in the MDN document and alternative methods are not implemented yet …
Is there a list of apis supported currently and in the future? It is also useful for writing type definitions (.d.ts).