public function CreateNthSelectionLists($listName, $numberOfLists, $excludeBlocked = true, $allowUnsubscribe = false, $rule = null, $allContacts = false) {
        return $this->sendRequest('list/createnthselectionlists', array(
                    'listName' => $listName,
                    'numberOfLists' => $numberOfLists,
                    'excludeBlocked' => $excludeBlocked,
                    'allowUnsubscribe' => $allowUnsubscribe,
                    'rule' => $rule,
                    'allContacts' => $allContacts
        ));
    }