--- a/mercurial/wireprotoframing.py	Mon Sep 16 15:36:38 2024 +0200
+++ b/mercurial/wireprotoframing.py	Mon Sep 16 15:36:44 2024 +0200
@@ -9,6 +9,7 @@
 # protocol. For details about the protocol, see
 # `hg help internals.wireprotocol`.
 
+from __future__ import annotations
 
 import collections
 import struct