createOffer method
      
Future<void> 
createOffer([ 
    
    
- RTCSessionDescriptionCallback? successCallback,
- RTCPeerConnectionErrorCallback? failureCallback,
- RTCOfferOptions? options
Implementation
Future<void> createOffer(
        [RTCSessionDescriptionCallback? successCallback,
        RTCPeerConnectionErrorCallback? failureCallback,
        RTCOfferOptions? options]) =>
    js_util.promiseToFuture(js_util.callMethod(this, 'createOffer', [
      successCallback == null ? null : allowInterop(successCallback),
      failureCallback == null ? null : allowInterop(failureCallback),
      options
    ]));