diff -r c9f3f4c8999a -r 2128c76c8970 mercurial/manifest.py
--- a/mercurial/manifest.py	Wed Aug 07 22:01:52 2019 +0200
+++ b/mercurial/manifest.py	Wed Aug 07 22:08:04 2019 +0200
@@ -1620,6 +1620,9 @@
     def revision(self, node, _df=None, raw=False):
         return self._revlog.revision(node, _df=_df, raw=raw)
 
+    def rawdata(self, node, _df=None):
+        return self._revlog.rawdata(node, _df=_df)
+
     def revdiff(self, rev1, rev2):
         return self._revlog.revdiff(rev1, rev2)