Question about sample code. I would like to provid...

# kontributors

[shiraji]

Question about sample code. I would like to provide sample code that might return null (Regex.find). The README says we can use assertPrints/assertTrue/assertFalse. What is the best way to illustrate the value is null? I found some code use assertPrints assertPrints(map.getOrPut("y") { null }, "null")