# File lib/ec2/right_ec2.rb, line 220
    def describe_images_by_owner(list=['self'], image_type=nil)
      list = list.to_a
      cache_for = list==['self'] && !image_type ? :describe_images_by_owner : nil
      ec2_describe_images({ 'Owner' => list }, image_type, cache_for)
    end