class CustomEventInterstitialAdapter implements CustomEventInterstitialListener {

    void showInterstitial() {
        if (isInvalidated() || mCustomEventInterstitial == null) return;
        
        mCustomEventInterstitial.showInterstitial();
    }

    public  CustomEventInterstitialAdapter(final MoPubInterstitial moPubInterstitial, final String className, final String jsonParams);

}