--- a/rust/hg-cpython/src/revlog.rs	Thu Apr 15 12:08:34 2021 +0200
+++ b/rust/hg-cpython/src/revlog.rs	Thu Apr 08 00:01:11 2021 +0200
@@ -172,6 +172,11 @@
         self.call_cindex(py, "clearcaches", args, kw)
     }
 
+    /// return the raw binary string representing a revision
+    def entry_binary(&self, *args, **kw) -> PyResult<PyObject> {
+        self.call_cindex(py, "entry_binary", args, kw)
+    }
+
     /// get an index entry
     def get(&self, *args, **kw) -> PyResult<PyObject> {
         self.call_cindex(py, "get", args, kw)