diff -r e7b5e8ba7cab -r a32a96079e2d mercurial/dirstatemap.py
--- a/mercurial/dirstatemap.py	Fri Oct 08 13:15:22 2021 +0200
+++ b/mercurial/dirstatemap.py	Sun Oct 03 13:18:03 2021 +0200
@@ -20,6 +20,7 @@
 
 from .dirstateutils import (
     docket as docketmod,
+    v2,
 )
 
 parsers = policy.importmod('parsers')