/**
* Aliases the user id from a temporary id to a permanent one
*
* @param array $message
*
* @return bool
* Whether the alias call succeeded
*
*/
public static function alias(array $message)
{
self::checkClient();
$userId = !empty($message["userId"]);
$previousId = !empty($message["previousId"]);
self::assert($userId && $previousId, "Segment::alias() requires both userId and previousId");
return self::$client->alias($message);
}
