--- a/mercurial/interfaces/repository.py	Tue Dec 10 21:48:12 2024 -0500
+++ b/mercurial/interfaces/repository.py	Tue Dec 10 21:55:13 2024 -0500
@@ -1279,9 +1279,10 @@
         """
 
 
-class imanifestrevisionwritable(imanifestrevisionbase):
+class imanifestrevisionwritable(imanifestrevisionbase, Protocol):
     """Interface representing a manifest revision that can be committed."""
 
+    @abc.abstractmethod
     def write(
         self, transaction, linkrev, p1node, p2node, added, removed, match=None
     ):