--- a/mercurial/util.py	Tue Mar 29 14:27:45 2022 +0200
+++ b/mercurial/util.py	Tue Mar 29 22:22:36 2022 -0400
@@ -25,6 +25,7 @@
 import locale
 import mmap
 import os
+import pickle  # provides util.pickle symbol
 import re as remod
 import shutil
 import stat