mercurial/interfaces/repository.py

--- a/mercurial/interfaces/repository.py	Sun Apr 05 13:12:05 2020 +0200
+++ b/mercurial/interfaces/repository.py	Sun Apr 05 18:32:46 2020 +0200
@@ -1395,6 +1395,9 @@
         Raises ``error.LookupError`` if the node is not known.
         """
 
+    def update_caches(transaction):
+        """update whatever cache are relevant for the used storage."""
+
 
 class ilocalrepositoryfilestorage(interfaceutil.Interface):
     """Local repository sub-interface providing access to tracked file storage.