Telegram bot starts but is silent?

Question

Python

The bot starts but is silent (does
not
throw
any errors
)
= Updater(token='my token', request_kwargs={'proxy_url': 'socks5://5.133.210.85:20721'}, use_context=True)
updater.dispatcher.add_handler(CommandHandler('hello', hello))
updater .start_polling()
updater.idle()