--- a/mercurial/chgserver.py	Mon Sep 16 15:36:38 2024 +0200
+++ b/mercurial/chgserver.py	Mon Sep 16 15:36:44 2024 +0200
@@ -39,6 +39,7 @@
   skiphash = False
 """
 
+from __future__ import annotations
 
 import inspect
 import os