OutcomingEventManager::cancelInvitation

public function cancelInvitation(): OutcomingEventManager
{
	$filesContent = $this->getCancelContent();
	$mailEventFields = $this->getCancelMailEventFields();
	$files = [];
	$this->status = CEvent::sendImmediate('SEND_ICAL_INVENT', SITE_ID, $mailEventFields, "Y", "", $files, '', $filesContent);

	return $this;
}