Button label
Authorization URL (see tl.RawInputKeyboardButtonUrlAuth)
Optional
bot?: TypeInputUserBot, which will be used for user authorization.
url
domain must be the same as the domain linked
with the bot.
Optional
fwdButton label when forwarded
Optional
requestWhether to request the permission for your bot to send messages to the user
Button to authorize a user
Used for inline keyboards, not reply!