1. @DomName('RTCDataChannel.sendByteBuffer')
  2. @DocsEditable()
void sendByteBuffer(ByteBuffer data)

Source 

@DomName('RTCDataChannel.sendByteBuffer')
@DocsEditable()
void sendByteBuffer(ByteBuffer data) =>
    _blink.BlinkRTCDataChannel.instance.send_Callback_1_(this, data);