588     teedataobject *dataobj;  member
824         link = teedataobject_jumplink(to->dataobj);  in tee_next()
827         Py_SETREF(to->dataobj, (teedataobject *)link);  in tee_next()
830     value = teedataobject_getitem(to->dataobj, to->index);  in tee_next()
840     Py_VISIT((PyObject *)to->dataobj);  in tee_traverse()
852     Py_INCREF(to->dataobj);  in tee_copy()
853     newto->dataobj = to->dataobj;  in tee_copy()
876     PyObject *dataobj = teedataobject_newinternal(it);  in tee_fromiterable()  local
877     if (!dataobj) {  in tee_fromiterable()
883         Py_DECREF(dataobj);  in tee_fromiterable()
886     to->dataobj = (teedataobject *)dataobj;  in tee_fromiterable()
915     Py_CLEAR(to->dataobj);  in tee_clear()
930     return Py_BuildValue("O(())(Oi)", Py_TYPE(to), to->dataobj, to->index);  in tee_reduce()
950     Py_XSETREF(to->dataobj, tdo);  in tee_setstate()