Unban a previously banned user in a supergroup or channel. The user will not return to the group or channel automatically, but will be able to join via link, etc. You must be an administrator for this to work.
str) – Unique identifier (int) or username (str) of the target chat.
str) – Unique identifier (int) or username (str) of the target user. For a contact that exists in your Telegram address book you can use his phone number (str).
bool– True on success.
# Unban chat member right now app.unban_chat_member(chat_id, user_id)