622     PyObject *pers_func;        /* persistent_id() method, can be NULL */  member
666     PyObject *pers_func;        /* persistent_load() method, can be NULL. */  member
1113     self->pers_func = NULL;  in _Pickler_New()
1597     self->pers_func = NULL;  in _Unpickler_New()
3875     pid = call_method(self->pers_func, self->pers_func_self, obj);  in save_pers()
4271     if (!pers_save && self->pers_func) {  in save()
4640     Py_XDECREF(self->pers_func);  in Pickler_dealloc()
4655     Py_VISIT(self->pers_func);  in Pickler_traverse()
4668     Py_CLEAR(self->pers_func);  in Pickler_clear()
4767                         &self->pers_func, &self->pers_func_self) < 0)  in _pickle_Pickler___init___impl()
5031     if (self->pers_func == NULL) {  in Pickler_get_persid()
5035     return reconstruct_method(self->pers_func, self->pers_func_self);  in Pickler_get_persid()
5054     Py_XSETREF(self->pers_func, value);  in Pickler_set_persid()
6101     if (self->pers_func) {  in load_persid()
6117         obj = call_method(self->pers_func, self->pers_func_self, pid);  in load_persid()
6139     if (self->pers_func) {  in load_binpersid()
6144         obj = call_method(self->pers_func, self->pers_func_self, pid);  in load_binpersid()
7202     Py_XDECREF(self->pers_func);  in Unpickler_dealloc()
7226     Py_VISIT(self->pers_func);  in Unpickler_traverse()
7239     Py_CLEAR(self->pers_func);  in Unpickler_clear()
7316                         &self->pers_func, &self->pers_func_self) < 0)  in _pickle_Unpickler___init___impl()
7603     if (self->pers_func == NULL) {  in Unpickler_get_persload()
7607     return reconstruct_method(self->pers_func, self->pers_func_self);  in Unpickler_get_persload()
7627     Py_XSETREF(self->pers_func, value);  in Unpickler_set_persload()