InvalidArgumentException: Missing endPointUrl for entityName "PrintNode\Scale"

[archonia-erwin]

Activating the virtual scale using PrintNode-PHP results in an InvalidArgumentException: Missing endPointUrl for entityName "PrintNode\Scale"

Testcode:
$credentials = new \PrintNode\Credentials ();
$credentials->setApiKey ( ... );
$request = new \PrintNode\Request ( $credentials );
$scale = new \PrintNode\Scale ();
$scale->deviceNum = 0;
$scale->deviceName = 'PrintNode Test Scale';
$scale->computerId = 0;
$request->put ( $scale );//This results in InvalidArgumentException: Missing endPointUrl for entityName "PrintNode\Scale"

Solution:
in class Request: add endPointUrl: PrintNode\Scale

private $endPointUrls = array(
    'PrintNode\Client' => '/download/clients',
    'PrintNode\Download' => '/download/client',
    'PrintNode\ApiKey' => '/account/apikey',
    'PrintNode\Account' => '/account',
    'PrintNode\Tag' => '/account/tag',
    'PrintNode\Whoami' => '/whoami',
    'PrintNode\Computer' => '/computers',
    'PrintNode\Printer' => '/printers',
    'PrintNode\PrintJob' => '/printjobs',
    
    'PrintNode\Scale' => '/scale',
);