graph->connect_nodes(hpass_node, vpass_node);
graph->replace_receiver(self, hpass_node);
graph->replace_sender(self, vpass_node);
self->disabled = true;
graph->connect_nodes(hpass_node, vpass_node);
graph->replace_receiver(self, hpass_node);
graph->replace_sender(self, vpass_node);
self->disabled = true;