new

# File activesupport/lib/active_support/ordered_options.rb, line 90
    def initialize(parent = nil)
      @parent = parent
      if @parent.kind_of?(OrderedOptions)
        # use the faster _get when dealing with OrderedOptions
        super() { |h, k| @parent._get(k) }
      elsif @parent
        super() { |h, k| @parent[k] }
      else
        super()
        @parent = {}
      end
    end