Retract your vote in 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.
Poll– On success, the poll with the retracted vote is returned.