example.php

<?php

use Abrouter\Client\Client;

class ExampleController
{
    public function __invoke(Client $client)
    {
        $userId = auth()->user()->id;
        $buttonColor = $client->experiments()->run($userId, 'button_color_test');
        return view('button', [
            'color' => $buttonColor->getBranchId(),
        ]);
    }
}