lib/image_optim/worker/optipng.rb in image_optim-0.9.1 vs lib/image_optim/worker/optipng.rb in image_optim-0.10.0

@@ -1,5 +1,7 @@
 require 'image_optim/worker'
+require 'image_optim/option_helpers'
+require 'image_optim/true_false_nil'
 
 class ImageOptim
   class Worker
     class Optipng < Worker
       option(:level, 6, 'Optimization level preset 0 is least, 7 is best'){ |v| OptionHelpers.limit_with_range(v.to_i, 0..7) }