(assert-equal 'null      (arcana/typeof '()))
(assert-equal 'procedure (arcana/typeof +))
(assert-equal 'pair      (arcana/typeof (cons 123 456)))
(assert-equal 'boolean   (arcana/typeof #false))
;(assert-equal 'char      (arcana/typeof #\n))
(assert-equal 'symbol    (arcana/typeof 'foo))
(assert-equal 'string    (arcana/typeof "foo"))
(assert-equal 'number    (arcana/typeof 123))