use Illuminate\Foundation\Exceptions\Handler; class CustomExceptionHandler extends Handler { // Override the default exception handler methods }In this example, we've extended the `Handler` class to create our custom exception handler. By extending the `Handler` class, we can customize how our application behaves when it encounters an exception or error. The `Illuminate\Foundation\Exceptions\Handler` package is part of the Laravel framework, which is a PHP web application framework. By using this package, developers can handle and manage application exceptions in a more effective way.