Updater = Updater(bot=casinobot) NameError: name 'Updater' is not defined

C:\Users\neslai\Desktop\сфы>python casinobot.py
Traceback (most recent call last):
  File "C:\Users\neslai\Desktop\сфы\casinobot.py", line 459, in <module>
    Updater = Updater(bot=casinobot)
NameError: name 'Updater' is not defined

Вылезает ошибка при запуске все библиотеки переустановливал и т.д сам код помогите

if __name__ == '__main__':
    casinobot = DealerBot(TOKEN, ADMIN_USERS, CASINO_CHAT_ID)
    Updater = Updater(bot=casinobot)
    j = updater.job_queue
    dispatcher = updater.dispatcher
    dispatcher.add_handler(CommandHandler('deposita', buyin))
    dispatcher.addTelegramCommandHandler('preleva', buyout)
    dispatcher.addTelegramCommandHandler('trasferisci', transfer)
    dispatcher.addTelegramCommandHandler('chips', chips)
    dispatcher.addTelegramCommandHandler('bilancio', balance)
    dispatcher.addTelegramCommandHandler('punta', bet)
    dispatcher.addTelegramCommandHandler('annulla', cancel)
    dispatcher.addTelegramCommandHandler('limita', limit)
    dispatcher.addTelegramCommandHandler('news', news)
    dispatcher.addTelegramCommandHandler('stats', stats)
    dispatcher.addTelegramCommandHandler('spiega', info)
    dispatcher.addTelegramCommandHandler('lista', list_games)
    dispatcher.addTelegramCommandHandler('giro', start_round)
    dispatcher.addTelegramCommandHandler('estrai', draw)
    dispatcher.addTelegramCommandHandler('blocca', block)
    dispatcher.addTelegramCommandHandler('forza', force_play_round)
    dispatcher.addTelegramCommandHandler('antitruffa', antiscam)
    updater.start_polling()
    updater.idle()