public function ListManagement_Update_List($modifyList) {
        $ret = false;

        if ($modifyList instanceof \Yesmail\YesmailListManagementModifyList && $modifyList->is_valid() === true) {
            $name = rawurlencode($modifyList->name);
            $type = rawurlencode($modifyList->type);
            $ret = $this->_call_api('put', "{$this->_url}/lists/$type/$name", $modifyList->subscriberList);
        }

        return $ret;
    }