# File lib/twitter/user.rb, line 48
    def profile_image_url(size=:normal)
      # The profile image URL comes in looking like like this:
      # http://a0.twimg.com/profile_images/1759857427/image1326743606_normal.png
      # It can be converted to any of the following sizes:
      # http://a0.twimg.com/profile_images/1759857427/image1326743606.png
      # http://a0.twimg.com/profile_images/1759857427/image1326743606_mini.png
      # http://a0.twimg.com/profile_images/1759857427/image1326743606_bigger.png
      resize_profile_image_url(@attrs[:profile_image_url], size)
    end