PayPal\Handler\PPGenericServiceHandler::__construct PHP Method

    public function __construct($sdkName, $sdkVersion)
    {
        $this->sdkName = $sdkName;
        $this->sdkVersion = $sdkVersion;
    }

 public function __construct($apiUsername, $sdkName, $sdkVersion)
 {
     parent::__construct($sdkName, $sdkVersion);
     $this->apiUsername = $apiUsername;
 }