NotificationsFrontendBeforeLoad Field

[Dynamicweb.Extensibility.Subscribe(Dynamicweb.Notifications.NewsV2.Frontend.BeforeLoad)]
    public class NewsV2BeforeLoadObserver : Dynamicweb.Extensibility.NotificationSubscriber
    {
        public override void OnNotify(string notification, Dynamicweb.Extensibility.NotificationArgs args)
        {
            if (args == null || !(args is Dynamicweb.NewsV2.Extensibility.FrontendNotificationArgs))
                return;

            Dynamicweb.NewsV2.Extensibility.FrontendNotificationArgs item = (Dynamicweb.NewsV2.Extensibility.FrontendNotificationArgs)args;

            item.ModuleInstance.Pageview.Meta.Add("newsv2-meta-tag","hello");
        }
    }