public function getConfig($contentType)
    {
        if (array_key_exists($contentType, $this->searchableTypes)) {
            return $this->searchableTypes[$contentType];
        }

        if ($this->canSearchInvisible() && array_key_exists($contentType, $this->invisibleTypes)) {
            return $this->invisibleTypes[$contentType];
        }

        return false;
    }