#||
,@(when (and (null restp) (= 1 (length required-args+rest-arg)))
`(((typep ,emf 'fast-instance-boundp)
(let ((.slots. (get-slots-or-nil
,(car required-args+rest-arg))))
(and .slots.
#||
,@(when (and (null restp) (= 1 (length required-args+rest-arg)))
`(((typep ,emf 'fast-instance-boundp)
(let ((.slots. (get-slots-or-nil
,(car required-args+rest-arg))))
(and .slots.