 # for the various node classes that hold the actual information.
 class HashMap extends Collection
   this::class = this
-  className: "HashMap"
+  @name = "HashMap"
 
   # Returns the (key,value)-pairs as a stream
   items: -> @entries

# The IntSet class.
class IntSet extends Collection
  this::class = this
  className: "IntSet"

  # Returns the elements as a stream
  elements: -> @entries

# for the various node classes that hold the actual information.
class HashSet extends Collection
  this::class = this
  @name = "HashSet"

  # Returns the elements as a stream
  elements: -> @entries
