# File lib/sass/script/value/helpers.rb, line 82
    def list(*elements)
      unless elements.last.is_a?(Symbol)
        raise ArgumentError.new("A list type of :space or :comma must be specified.")
      end
      separator = elements.pop
      if elements.size == 1 && elements.first.is_a?(Array)
        elements = elements.first
      end
      Sass::Script::Value::List.new(elements, separator)
    end