answer method
Answer the recieved pre-checkout query
A wrapper around TeleDart.answerPreCheckoutQuery. On success, returns true.
It can take a bool that indicates
if the pre-checkout is possible, and an errorMessage that
is shown to user if ok is false (You don't have to specify it if ok is true).
Check Telegram API documentation for more information about those options.
Implementation
Future<bool> answer(bool ok, {String? errorMessage}) =>
_teledart.answerPreCheckoutQuery(id, ok, errorMessage: errorMessage);