# File lib/aws/dynamo_db/attribute_collection.rb, line 268
        def delete *args
          if args.first.kind_of?(Hash)
            attribute_updates("DELETE",
                              args.shift,
                              :setify => true)
          else
            add_updates(args.inject({}) do |u, name|
                          u.update(name.to_s => {
                                     :action => "DELETE"
                                   })
                        end)
          end
        end