--- a/hgext/fastannotate/__init__.py	Mon Sep 16 15:36:38 2024 +0200
+++ b/hgext/fastannotate/__init__.py	Mon Sep 16 15:36:44 2024 +0200
@@ -102,6 +102,8 @@
 # * format changes to the revmap file (maybe use length-encoding
 #   instead of null-terminated file paths at least?)
 
+from __future__ import annotations
+
 from mercurial.i18n import _
 from mercurial import (
     error as hgerror,