extern PyObject *gmap_pylookup(PyObject *, PyObject *); /* for `mp_subscript' */
extern int gmap_pystore(PyObject *, PyObject *, PyObject *); /* for `mp_ass_subscript' */
extern int gmap_pyhaskey(PyObject *, PyObject *); /* for `sq_contains' */
+extern int gmap_pyupdate(PyObject *me, PyObject *map);
extern const PySequenceMethods gmap_pysequence; /* for `tp_as_sequence' */
extern const PyMethodDef gmapro_pymethods[]; /* read-only methods */
extern const PyMethodDef gmap_pymethods[]; /* all the standard methods */