[racket] typesetting a macro in slideshow

I want to typeset a macro in slideshow, and I did something like this:

(slide
 #:title "Title"
 (typeset-code
  #'(define-syntax A
      (syntax-rules ()
        ((A s ...) s)))))

but I get the error: "syntax: no pattern variables before ellipses in
template in: ..."

is it possible to typeset? how should it be done?

Thanks

-- 
Ismael
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