--- a/mercurial/pathutil.py	Tue Dec 19 21:29:34 2023 +0100
+++ b/mercurial/pathutil.py	Wed Dec 20 11:23:09 2023 +0100
@@ -392,4 +392,4 @@
 # rather not let our internals know that we're thinking in posix terms
 # - instead we'll let them be oblivious.
 join = posixpath.join
-dirname = posixpath.dirname  # type: Callable[[bytes], bytes]
+dirname: Callable[[bytes], bytes] = posixpath.dirname