# File lib/AWS/EC2/images.rb, line 38
38:       def deregister_image( options = {} )
39:         options = { :image_id => "" }.merge(options)
40:         raise ArgumentError, "No :image_id provided" if options[:image_id].nil? || options[:image_id].empty?
41:         params = { "ImageId" => options[:image_id] }
42:         return response_generator(:action => "DeregisterImage", :params => params)
43:       end