for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
<?php
namespace App;
use Symfony\Bundle\FrameworkBundle\Kernel\MicroKernelTrait;
use Symfony\Component\HttpKernel\Kernel as BaseKernel;
class Kernel extends BaseKernel
{
use MicroKernelTrait;
Symfony\Bundle\Framework...Kernel\MicroKernelTrait
$instanceof
App\Kernel
}