Rector - php 7.4 to 8 config file

rector.php

<?php

// Details => https://getrector.org/blog/2020/11/30/smooth-upgrade-to-php-8-in-diffs

declare(strict_types=1);

use Rector\Core\Configuration\Option;
use Rector\Php74\Rector\Property\TypedPropertyRector;
use Rector\Set\ValueObject\SetList;
use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;

return static function (ContainerConfigurator $containerConfigurator): void {    
    // get parameters
    $parameters = $containerConfigurator->parameters();
    $containerConfigurator->import(SetList::PHP_80);

    // is there a file you need to skip?
    $parameters->set(Option::SKIP, [
        // single file
        //__DIR__ . '/src/ComplicatedFile.php',
        // or directory
        __DIR__ . '/vendor',
        __DIR__ . '/lib',
        // or fnmatch
        //__DIR__ . '/src/*/Tests/*',

        // is there single rule you don't like from a set you use?
        SimplifyIfReturnBoolRector::class,

        // or just skip rule in specific directory
        SimplifyIfReturnBoolRector::class => [
            // single file
            __DIR__ . '/src/ComplicatedFile.php',
            // or directory
            __DIR__ . '/src',
            // or fnmatch
            __DIR__ . '/src/*/Tests/*',
        ],
    ]);

    // Define what rule sets will be applied
    $containerConfigurator->import(SetList::DEAD_CODE);

    // get services (needed for register a single rule)
    // $services = $containerConfigurator->services();

    // register a single rule
    // $services->set(TypedPropertyRector::class);
};