public static function classBelongsToShopUnifiedNamespace($className)
    {
        $lcClassName = strtolower(ltrim($className, '\\'));
        $unifiedNamespace = static::getUnifiedNamespace();
        $belongsToUnifiedNamespace = (false !== strpos($lcClassName, strtolower($unifiedNamespace)));

        return $belongsToUnifiedNamespace;
    }