--- a/hgext/git/manifest.py	Thu Jan 02 11:24:09 2025 -0500
+++ b/hgext/git/manifest.py	Thu Jan 02 11:27:45 2025 -0500
@@ -4,6 +4,7 @@
 
 from typing import (
     Any,
+    Collection,
     Iterable,
     Iterator,
     Set,
@@ -309,6 +310,26 @@
     def find(self, path: bytes) -> tuple[bytes, bytes]:
         return self.read().find(path)
 
+    def node(self) -> bytes:
+        raise NotImplementedError
+
+    def readdelta(self, shallow: bool = False):
+        raise NotImplementedError
+
+    def read_any_fast_delta(
+        self,
+        valid_bases: Collection[int] | None = None,
+        *,
+        shallow: bool = False,
+    ):
+        raise NotImplementedError
+
+    def read_delta_parents(self, *, shallow: bool = False, exact: bool = True):
+        raise NotImplementedError
+
+    def read_delta_new_entries(self, *, shallow: bool = False):
+        raise NotImplementedError
+
 
 class memgittreemanifestctx(repository.imanifestrevisionwritable):
     def __init__(self, repo, tree):