CustomWebView : An extended form of Web Viewer

// v12beta

    @SimpleEvent(description = "A new request is intercepted or recorded <br> Added by Xoma")
    public void RequestIntercepted(String url, YailDictionary requestHeaders) {
        EventDispatcher.dispatchEvent(this, "RequestIntercepted", url, requestHeaders);
    }

I found this in the source code, but can not find this in the blocks.

Is there a way to expose this 'shouldInterceptRequest(WebView view, final WebResourceRequest request)' to user? @vknow360