# File lib/aws/simple_db/attribute.rb, line 87
      def delete *values
        expect_opts = values.pop if values.last.kind_of?(Hash)

        if values.empty?
          delete_named_attributes(name, expect_opts || {})
        else
          delete_attribute_values(Hash[[[name, values]]].
                                  merge(expect_opts || {}))
        end
        nil
      end