# System.Reflection.Emit

``` diff
 namespace System.Reflection.Emit {
     public sealed class EnumBuilder : TypeInfo {
-        public Type? CreateType();
+        public Type CreateType();
-        public TypeInfo? CreateTypeInfo();
+        public TypeInfo CreateTypeInfo();
     }
     public sealed class TypeBuilder : TypeInfo {
-        public Type? CreateType();
+        public Type CreateType();
-        public TypeInfo? CreateTypeInfo();
+        public TypeInfo CreateTypeInfo();
     }
 }
```

