Update net472_polyFill.cs

Author: blackholeearth

DeftSharp.Windows.Input/net472_polyFill.cs

@@ -54,6 +54,16 @@ public static bool TryRemove<TK, TValue>(this ConcurrentDictionary<TK, TValue> d
 /// </summary>
 public static partial class PolyFillExtensions
 {
+
+
+    /// <summary>
+    /// net472_polyFill - internal  ---  Ex: collection.TakeLast(5);
+    /// </summary>
+    internal static IEnumerable<T> TakeLast_internal_viaSO<T>(this IEnumerable<T> source, int N)
+    {
+        return source.Skip(Math.Max(0, source.Count() - N));
+    }
+
     /// <summary>
     /// net472_polyFill - internal
     /// </summary>