class HTTParty::CookieHash

def add_cookies(data)
  case data
  when Hash
    merge!(data)
  when String
    data.split('; ').each do |cookie|
      key, value = cookie.split('=', 2)
      self[key.to_sym] = value if key
    end
  else
    raise "add_cookies only takes a Hash or a String"
  end
end