BUS_NODE_VTABLE  1635 src/libsystemd/sd-bus/bus-objects.c         s = bus_slot_allocate(bus, !slot, BUS_NODE_VTABLE, sizeof(struct node_vtable), userdata);
BUS_NODE_VTABLE   135 src/libsystemd/sd-bus/bus-slot.c         case BUS_NODE_VTABLE: