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_jar.rb
    path of file: ./repos/mechanize/lib/mechanize
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

    
    def add(arg1, arg2 = nil)
      if arg2
        __deprecated__ 'add and origin='
        super arg2.dup.tap { |ncookie|
          begin
            ncookie.origin = arg1
          rescue
            return nil
          end