--- a/mercurial/posix.py	Thu Jul 18 19:55:51 2024 -0400
+++ b/mercurial/posix.py	Thu Jul 18 19:57:42 2024 -0400
@@ -707,6 +707,8 @@
 
 
 class cachestat:
+    stat: os.stat_result
+
     def __init__(self, path: bytes) -> None:
         self.stat = os.stat(path)