public function EECopy($sourceListName, $newlistName = null, $createEmptyList = null, $allowUnsubscribe = null, $rule = null) {
        return $this->sendRequest('list/copy', array(
                    'sourceListName' => $sourceListName,
                    'newlistName' => $newlistName,
                    'createEmptyList' => $createEmptyList,
                    'allowUnsubscribe' => $allowUnsubscribe,
                    'rule' => $rule
        ));
    }