How to use the cordova-plugin-media-capture.CaptureAudioOptions function in cordova-plugin-media-capture

captureAudio: function (successCallback, errorCallback, args) {
        var options = args[0];

        var audioOptions = new CaptureAudioOptions();
        if (typeof (options.duration) === 'undefined') {
            audioOptions.duration = 3600; // Arbitrary amount, need to change later
        } else if (options.duration > 0) {
            audioOptions.duration = options.duration;
        } else {
            errorCallback(new CaptureError(CaptureError.CAPTURE_INVALID_ARGUMENT));
            return;
        }

        // Some shortcuts for long namespaces
        var CaptureNS = Windows.Media.Capture;
        var MediaPropsNS = Windows.Media.MediaProperties;
        var localAppData = Windows.Storage.ApplicationData.current.localFolder;
        var generateUniqueName = Windows.Storage.NameCollisionOption.generateUniqueName;

        var mediaCapture = new CaptureNS.MediaCapture();