Vote a poll.
str) – Unique identifier (int) or username (str) of the target chat. For your personal cloud (Saved Messages) you can simply use “me” or “self”. For a contact that exists in your Telegram address book you can use his phone number (str).
int) – Identifier of the original message with the poll.
int) – Index of the poll option you want to vote for (0 to 9).
Poll- On success, the poll with the chosen option is returned.
app.vote_poll(chat_id, message_id, 6)