| Index: lib/collection/collection_patch.dart | 
| diff --git a/lib/collection/collection_patch.dart b/lib/collection/collection_patch.dart | 
| index c0bea11cfe0a0581b3cc2ba780d84a6920c36a25..6581b2dabbdee7f8657f7b4529ba03c4fa670497 100644 | 
| --- a/lib/collection/collection_patch.dart | 
| +++ b/lib/collection/collection_patch.dart | 
| @@ -3,8 +3,7 @@ | 
| // BSD-style license that can be found in the LICENSE.md file. | 
|  | 
| import 'dart:fletch._system' as fletch; | 
| - | 
| -const patch = "patch"; | 
| +import 'dart:fletch._system' show patch; | 
|  | 
| @patch class HashMap<K, V> { | 
| @patch factory HashMap({ bool equals(K key1, K key2), | 
|  |