((item-args :initform nil :initarg :item :layered t :special t)))
(define-layered-method display-attribute-value
((item-args :initform nil :initarg :item :layered t :special t)))
(define-layered-method display-attribute-value
(dletf (((attribute-object attribute) item))
(apply #'display *display* item (slot-value attribute 'item-args))
(unless (endp (cdr cons))
(dletf (((attribute-object attribute) item))
(apply #'display *display* item (slot-value attribute 'item-args))
(unless (endp (cdr cons))