def options=(options)
      @options = options
      children.each do |c|
        if c.is_a? Hash
          c.values.each {|v| v.options = options}
        else
          c.options = options
        end
      end
    end
def options=(options)
      @options = options
      children.each do |c|
        if c.is_a? Hash
          c.values.each {|v| v.options = options}
        else
          c.options = options
        end
      end
    end
Sets the options hash for this node,
 as well as for all child nodes.
 See {file:SASS_REFERENCE.md#Options the Sass options documentation}.

 @param options [{Symbol => Object}] The options