如何静音视频广告？ firebase admob 反应原生

如何解决如何静音视频广告？ firebase admob 反应原生

我有广告模块 firebase-admob。我想在显示视频广告时禁用音量。现在

const interstitial = InterstitialAd.createForAdRequest(adUnitId,{
requestNonPersonalizedAdsOnly: true,});
interstitial.load();
interstitial.show();

在这里配置：

    admob()
        .setRequestConfiguration({
            // Update all future requests suitable for parental guidance
            maxAdContentrating: MaxAdContentrating.G,// Indicates that you want your content treated as child-directed for purposes of copPA.
            tagForChildDirectedTreatment: true,// Indicates that you want the ad request to be handled in a
            // manner suitable for users under the age of consent.
            tagForUnderAgeOfConsent: true,})
        .then(() => {
        });

我想要默认静音视频广告。如果可能，我该怎么做？