createDataChannel
fun createDataChannel(label: String, dataChannelDict: RTCDataChannelInit = definedExternally): RTCDataChannel(source)
The createDataChannel() method of the RTCPeerConnection interface creates a new channel linked with the remote peer, over which any kind of data may be transmitted. This can be useful for back-channel content, such as images, file transfer, text chat, game update packets, and so forth.