/**
* Public function that updates a list
*
* @param string $listId - valid list ID of the list that needs to be updated
* @param object $list - valid list object of the new updates to the list
* @return string $code - success or fail message from the API server
*/
public function updateList($listId, $list)
{
$utility = new CTCTUtility();
$existingList = $this->getListDetails($listId);
$listXml = $this->createListXml($existingList->getId(), $list);
$return = $utility->httpPut($utility->getApiPath() . $existingList->getLink(), $listXml);
$code = $return['info']['http_code'];
return $code;
}
