--- a/hgext/hgk.py	Mon Sep 16 15:36:38 2024 +0200
+++ b/hgext/hgk.py	Mon Sep 16 15:36:44 2024 +0200
@@ -34,6 +34,7 @@
 vdiff on hovered and selected revisions.
 '''
 
+from __future__ import annotations
 
 import os