0.IO : 1.★ → ★
ω.print : 1.String → IO {ok}
ω.main : IO {ok}
IO = □
print = scheme:(lambda (str) (builtin-io (display str) (newline)))
#[main] main = print "hello 🐉"
;; IO erased
(define print
   (lambda (str) (builtin-io (display str) (newline))))
(define main
   (print "hello \x1f409;"))
hello 🐉