(wrapper-instance-slots-layout nwrapper) nlayout
(wrapper-class-slots nwrapper) nwrapper-class-slots
(layout-length nwrapper) nslots
(slot-value class 'wrapper) nwrapper)
(wrapper-instance-slots-layout nwrapper) nlayout
(wrapper-class-slots nwrapper) nwrapper-class-slots
(layout-length nwrapper) nslots
(slot-value class 'wrapper) nwrapper)