:DOCUMENTATION
==============

syntax: <documentation> ::= <lisp-type: string>

Warning: The explanation facility is not sup-
         ported, hence :documentation and
         :explanation are ignored.

The DOCUMENTATION is only for own comments and
will not be used by the system; for this reason
it does not return a value.

example: (define-frame computer
               :documentation "describes the
               options of the computer")