Doc outdated on Cart ? Non-static method 'use' for CartSessionManager

[SebastianBotez]

Hello guys.
I have a question regarding the documentation.
I'm at the part where I need to add items to cart and I try to retrieve the current cart.
If the current cart returns NULL, I create a new one and store it in the session (at least I try).

$cart = \Lunar\Facades\CartSession::current();
if(!$cart) {
    $cart = \Lunar\Models\Cart::create([
        'currency_id' => 1,
        'channel_id' => 1,
    ]);
    CartSessionManager::use($cart);
}

Unfortunatelly I'm getting
Non-static method Lunar\Managers\CartSessionManager::use() cannot be called statically wich makes sense because the use function is declared as non-static public function use(Cart $cart)

Official documentation says as below wich is equivalent with my code.

$cart = \Lunar\Models\Cart::first();
CartSessionManager::use($cart);

Thank for all your effort!

[glennjacobs]

If you are getting cannot be called statically it suggests you are not using the Facade.

[SebastianBotez]

Yes indeed, but unfortunatelly there is no Facade defined as CartSessionManager or maybe I could not find it. Am i wrong?

[glennjacobs]

\Lunar\Facades\CartSession