def METHOD_NAME(self):
    """
    Deletes any resources that were created for the demo.
    """
    if self.created_key is not None:
        answer = input(
            f"Key {self.created_key['KeyId']} was created for this demo. Do you "
            f"want to delete it (y/n)? ")
        if answer.lower() == 'y':
            try:
                self.kms_client.schedule_key_deletion(
                    KeyId=self.created_key['KeyId'], PendingWindowInDays=7)
            except ClientError as err:
                logging.error(
                    "Couldn't delete key. Here's why: %s", err.response['Error']['Message'])
            else:
                print(f"Key scheduled for deletion in 7 days.")