Keyword Arguments + iVars

gistfile1.txt

2.0.0-preview1 :001 > class Walrus
2.0.0-preview1 :002?>   attr_accessor :bubbles
2.0.0-preview1 :003?>   def initialize(bubbles: @bubbles)
2.0.0-preview1 :004?>     end
2.0.0-preview1 :005?>   end
 => nil 
2.0.0-preview1 :006 > Walrus.new bubbles: 'It works!'
 => #<Walrus:0x007fe8a1e78e48> 
2.0.0-preview1 :007 > _.bubbles
 => nil 

Maybe it is hiding! (This doesn't make sense why it would be the case, I'm just trying)

2.0.0-preview1 :012 > w = Walrus.new(bubbles: 7)
 => #<Walrus:0x007fe8a1ea93e0> 
2.0.0-preview1 :013 > w
 => #<Walrus:0x007fe8a1ea93e0> 
2.0.0-preview1 :014 > w.instance_variable_get :@bubbles
 => nil

Walrus, y u no bubbles?