"
    This is module Foo to convert all foo's into bar's.
"
(define-module (foo))

(define (frob a y)
    "
        Frobnikate a with y.

        +++ (frob 2 3)
        --- 5
        +++ (frob 4 2)
        --- 1
        +++ (/ 0 0)
        --- -1
     "
    (+ a y))

;; (define (bar f)
;;     "Barnizite!!"
;;     (f (frob 2 5)))
;; (define (bk) #f)

(define +magic+ 12)
"
    This is magic constants. Yeah.
"
