
Validation missing ?

   Set a standard

(1) has 'generate' => identity (aka str)
(2) no default
    (a) option => boolean
    (b) input  => identity
(3) default is boolean value (as Tcl understands it)
    => boolean
(4) default is integer value => itenger
(5) => identity

Default missing (and required) ?

 (Required <=> There is no 'generate' either, and parameter is
 optional input)

(1) list => empty list
(2) => Default value supplied by the specified validation type.
