call
fun callConfigFor(url: String, token: MeetingToken? = null, listener: RequestListenerWithData<CallConfiguration>)
Request the Call Configuration for a given Daily room URL.
The url parameter should be a valid URL
The token parameter should be a valid MeetingToken
The callback (listener) will be invoked either when the operation has completed, or if it encounters an error.
Errors will also be provided to the CallClientListener.onError callback.