I’m using telegram_bot.send_poll in a home group chat, for example to vote for tonight’s dinner. 
When I set this up it was impossible to act on the votes, because there was no event generated in Home Assistant when someone voted. But recently I see these warnings in the logs:
Unhandled update: Update(poll_answer=PollAnswer(option_ids=(3,), poll_id=‘123’, user=User(first_name=‘X’, id=123, is_bot=False, language_code=‘nl’)), update_id=123)
No idea if this is a new feature in Telegram, but it would be very handy to have this update converted to an event in Home Assistant so it can be used in automations to act on poll responses!