/** * HelloSignClient constructor. * @param mixed $first email address or apikey or OAuthToken * @param string $last Null if using apikey or OAuthToken * @param string $apiUrl (optional) alternative api base url * @param string $oauthTokenUrl */ public function __construct($first, $last = null, $apiUrl = self::API_URL, $oauthTokenUrl = self::OAUTH_TOKEN_URL) { parent::__construct($first, $last, $apiUrl, $oauthTokenUrl); }