add _PyObject_LookupSpecial to handle fetching special method lookup
diff --git a/Include/object.h b/Include/object.h
index 1bc13e7..12e0c46 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -451,6 +451,7 @@
PyAPI_FUNC(PyObject *) PyType_GenericNew(PyTypeObject *,
PyObject *, PyObject *);
PyAPI_FUNC(PyObject *) _PyType_Lookup(PyTypeObject *, PyObject *);
+PyAPI_FUNC(PyObject *) _PyObject_LookupSpecial(PyObject *, char *, PyObject **);
PyAPI_FUNC(unsigned int) PyType_ClearCache(void);
PyAPI_FUNC(void) PyType_Modified(PyTypeObject *);