1 files changed, 6 insertions, 9 deletions
diff --git a/sandbox/TestData2/A.cs b/sandbox/TestData2/A.cs
index 44b0a47f..a7eeef9d 100644
--- a/sandbox/TestData2/A.cs
+++ b/sandbox/TestData2/A.cs
@@ -1,17 +1,14 @@
 // Copyright (c) All contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
-using System.Collections.Generic;
-using MessagePack;
-
 #pragma warning disable SA1307 // Accessible fields should begin with upper-case letter
 #pragma warning disable SA1401 // Fields should be private
+#nullable enable
+
+namespace TestData2;
 
-namespace TestData2
+[MessagePackObject(true)]
+public class A
 {
-    [MessagePackObject(true)]
-    public class A
-    {
-        public int a; public List<B> bs; public C c;
-    }
+    public int a; public List<B?>? bs; public C? c;
 }