# System.Windows.Markup

``` diff
 namespace System.Windows.Markup {
     public sealed class XmlAttributeProperties {
-        public static string GetXmlNamespaceMaps(DependencyObject dependencyObject);

+        public static Hashtable GetXmlNamespaceMaps(DependencyObject dependencyObject);
+        public static void SetXmlNamespaceMaps(DependencyObject dependencyObject, Hashtable value);
-        public static void SetXmlNamespaceMaps(DependencyObject dependencyObject, string value);

     }
 }
```

