    # File lib/fog/rackspace/models/storage/file.rb, line 34
            def copy(target_directory_key, target_file_key, options={})
              requires :directory, :key
              options['Content-Type'] ||= content_type if content_type
              options['Access-Control-Allow-Origin'] ||= access_control_allow_origin if access_control_allow_origin
              options['Origin'] ||= origin if origin
              service.copy_object(directory.key, key, target_directory_key, target_file_key, options)
              target_directory = service.directories.new(:key => target_directory_key)
              target_directory.files.get(target_file_key)
            end