(examples-for range
  ("produces a range of integers"
   (range 10 20)
   (10 11 12 13 14 15 16 17 18 19))

  ("produces a range of dates"
   (to-string:range (date 2015 11 20) (date 2015 11 25))
   "(2015-11-20 2015-11-21 2015-11-22 2015-11-23 2015-11-24)"))