TypeError when trying to use MemcachedHandler for sessions

I am trying to use MemcachedHandler for my sessions.
I have thus these two lines in Config\Session.php:

PHP Code:

    public string $driver = MemcachedHandler::class;
    public string $savePath = 'localhost:11211'; 


I get the following error :

TypeError

CodeIgniter\Cache\Handlers\MemcachedHandler::__construct(): Argument #1 ($config) must be of type Config\Cache, Config\App given, called in C:\wamp64\www\project\vendor\codeigniter4\framework\system\Config\Services.php on line 667

PHP Code:

    public string $driver = 'CodeIgniter\Session\Handlers\MemcachedHandler'; 


It is recommended that you learn about PHP's namespacing or how to specify a classname.

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PHP Code:

    public string $driver = 'CodeIgniter\Session\Handlers\MemcachedHandler'; 


It is recommended that you learn about PHP's namespacing or how to specify a classname.

Oh sorry, my fault.
The import generated by PHPStorm was the wrong one and ( I didn't even think to check it (both extend BaseHandler then no warning was triggered).

... which is probably why it's called MemcachedSessionHandler in Symfony.