Interop.cs

using UnityEngine;
using System.Collections;
using System;

public static class Interop
{
	public static event EventHandler HideBannerEvent;
	
	public static void HideBannerAd()
	{
		if (HideBannerEvent != null) 
		{
			HideBannerEvent(null, EventArgs.Empty);
		}
	}
}