def METHOD_NAME():
    verify_sender_email()  # emails are sent to owner and security; Slack only used for configured notification
    notification = NotificationFactory(plugin_name="slack-notification")
    notification.options = get_options()
    now = arrow.utcnow()
    in_ten_days = now + timedelta(days=10, hours=1)  # a bit more than 10 days since we'll check in the future
    certificate = CertificateFactory()
    certificate.not_after = in_ten_days
    certificate.notifications.append(notification)