app/bundles/CoreBundle/Update/Step/StepInterface.php

<?php

namespace Mautic\CoreBundle\Update\Step;

use Symfony\Component\Console\Helper\ProgressBar;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

interface StepInterface
{
    public function getOrder(): int;

    public function shouldExecuteInFinalStage(): bool;

    public function execute(ProgressBar $progressBar, InputInterface $input, OutputInterface $output): void;
}