Example in header out of date?

[PaulWieland]

There is a comment in the header of class.sosumi.php:

// Usage:
// $ssm = new Sosumi('username', 'password');
// $location_info = $ssm->locate(<device id>);
// $ssm->sendMessage('Your Message', true, <device id>, 'Important Message');

However the declaration for sendMessage is:

    public function sendMessage($device_id, $msg, $alarm = false, $subject = 'Important Message')

I was using the example to try and test the class and wasn't having any success. Then I realized the example doesn't have the arguments in the right order - however using the right arguments still doesn't work so I'm not sure if the class even still works!