code: @Override
      @NonNull
      protected ViewGroup getAdViewWrapper(ViewGroup parent) {
          return (ViewGroup) LayoutInflater.from(parent.getContext()).inflate(R.layout.web_ad_container,
                  parent, false);
      }
docs: This method can be overridden to wrap the created ad view with a custom {@link ViewGroup}.<br/>
  For example if you need to wrap the ad with your custom CardView
  @return The wrapper {@link ViewGroup} for ad, by default {@link AdView} ad would be wrapped with a CardView which is returned by this method