Can't implement with Laravel 5.8

[yasithao3]

I'm trying to implement this sdk with Laravel 5.8 using composer
composer require cdiscount/sdkphpapi

When I try to use it in a Laravel Controller it keeps showing me an error saying

Class 'Sdk\ApiClient\CDSApiClient' not found

instead autoloading I tried to require . that also fails with the same error.
require_once base_path('vendor/cdiscount/sdkphpapi/sdk/src/public/ApiClient/CDSApiClient.php');

[ThomasRolfe]

Ive found the index.php file included doesnt load the class properly but going to an example (such as /samples/Order/GetOrderList.php) endpoint, the vendor and sdk autoloaders work correctly. Never ended up digging any further to get it to work on the index level though

[RUDIWER]

Hello,

I have the same problem as yasithao3 ?
What do i need to do to fix it ?