From c95557cbb445ee333840d89bc5cce507475656c8 Mon Sep 17 00:00:00 2001
From: Vincent Dondain <vidondai@microsoft.com>
Date: Thu, 22 Feb 2018 17:10:35 -0500
Subject: [PATCH] [iad] Update to Xcode 9.3 beta 3 (#3576)

---
 src/iad.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/iad.cs b/src/iad.cs
index 9a8480d22c..781164e0ab 100644
--- a/src/iad.cs
+++ b/src/iad.cs
@@ -241,7 +241,7 @@ namespace XamCore.iAd {
 		bool ShouldPresentInterstitialAd ();
 	}
 
-	delegate void ADConversionDetails (NSDate appPurchaseDate, NSDate iAdImpressionDate);
+	delegate void ADConversionDetails ([NullAllowed] NSDate appPurchaseDate, [NullAllowed] NSDate iAdImpressionDate);
 	
 	[Since (7,1)]
 	[BaseType (typeof (NSObject))]