public function CreateFromCampaign($campaignID, $listName, array $statuses = array()) {
        return $this->sendRequest('list/createfromcampaign', array(
                    'campaignID' => $campaignID,
                    'listName' => $listName,
                    'statuses' => (count($statuses) === 0) ? null : join(';', $statuses)
        ));
    }