Documentation for PyDescr_NewClassMethod was missing - here's at least
the function prototype.
Already backported to release23-maint.
diff --git a/Doc/api/concrete.tex b/Doc/api/concrete.tex
index efcf299..43180cc 100644
--- a/Doc/api/concrete.tex
+++ b/Doc/api/concrete.tex
@@ -2362,6 +2362,11 @@
\versionadded{2.2}
\end{cfuncdesc}
+\begin{cfuncdesc}{PyObject*}{PyDescr_NewClassMethod}{PyTypeObject *type,
+ PyMethodDef *method}
+ \versionadded{2.3}
+\end{cfuncdesc}
+
\begin{cfuncdesc}{int}{PyDescr_IsData}{PyObject *descr}
Returns true if the descriptor objects \var{descr} describes a data
attribute, or false if it describes a method. \var{descr} must be a