Event args for iOSWebView.AuthChallengeReceived.
IntPtr AuthChallenge Objective-C pointer to the native (NSURLAuthenticationChallenge *) challenge parameter passed to webView:didReceiveAuthenticationChallenge:completionHandler:
See also: NSURLAuthenticationChallenge
IntPtr CompletionHandler Objective-C pointer to the native (void (^)(enum NSURLSessionAuthChallengeDisposition, NSURLCredential *)) completionHandler parameter passed to webView:didReceiveAuthenticationChallenge:completionHandler: