You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: cookie.rb
    path of file: ./repos/ruby/tool/lib/webrick
    
    the code of the file until where you have to start completion: # frozen_string_literal: false
#
# cookie.rb -- Cookie class
#
# Author: IPR -- Internet Programming with Ruby -- writers
# Copyright (c) 2000, 2001 TAKAHASHI Masayoshi, GOTOU Yuuzou
# Copyright (c) 2002 Internet Programming with Ruby writers. All rights
# reserved.
#
# $IPR: cookie.rb,v 1.16 2002/09/21 12:23:35 gotoyuzo Exp $

require 'time'
require_relative 'httputils'

module WEBrick

  ##
  # Processes H
    
    def self.parse(str)
      if str
        ret = []
        cookie = nil
        ver = 0
        str.split(/;\s+/).each{|x|
          key, val = x.split(/=/,2)
          val = val ? HTTPUtils::dequote(val) : ""
          case key
          when "$Version"; ver = val.to_i
          when "$Path";    cookie.path = val
          when "$Domain";  cookie.domain = val
          when "$Port";    cookie.port = val
          else
            ret << cookie if cookie
            cookie = self.new(key, val)
            cookie.version = ver
          end