--- a/mercurial/util.py	Mon Sep 16 15:36:38 2024 +0200
+++ b/mercurial/util.py	Mon Sep 16 15:36:44 2024 +0200
@@ -13,6 +13,7 @@
 hide platform-specific details from the core.
 """
 
+from __future__ import annotations
 
 import abc
 import collections