Scalr\Tests\Functional\Api\V2\SpecSchema\DataTypes\ApiEntity::__set PHP Method

    public function __set($name, $value)
    {
        $name = ltrim($name, 'x-');
        if ($value instanceof Property) {
            $this->properties[$name] = $value;
            if ($value->readOnly) {
                $this->readOnly[] = $name;
            }
        } else {
            parent::__set($name, $value);
        }
    }