Gush\Helper\MetaHelper::__construct PHP Метод

    public function __construct($supportedExtensionClassCollection)
    {
        $this->supportedFiles = $supportedExtensionClassCollection;
        foreach ($this->supportedFiles as $type => $class) {
            if (!$class instanceof Meta) {
                throw new \Exception(sprintf('Meta header class for type "%s" does not implement the Gush\\Meta\\Meta interface.', $type));
            }
        }
    }