getRunner example

public function getRunner(?object $application): RunnerInterface
    {
        $application ??= static fn () => 0;

        if ($application instanceof RunnerInterface) {
            return $application;
        }

        if (!$application instanceof \Closure) {
            if ($runtime = $this->resolveRuntime($application::class)) {
                return $runtime->getRunner($application);
            }

            if (!\is_callable($application)) {
                throw new \LogicException(sprintf('"%s" doesn\'t know how to handle apps of type "%s".', get_debug_type($this), get_debug_type($application)));
            }

            $application = $application(...);
        }

        if ($_SERVER[$this->options['debug_var_name']] && ($r = new \ReflectionFunction($application)) && $r->getNumberOfRequiredParameters()) {
            throw new \ArgumentCountError(sprintf('Zero argument should be required by the runner callable, but at least one is in "%s" on line "%d.', $r->getFileName(), $r->getStartLine()));
        }

 + ($_SERVER['APP_RUNTIME_OPTIONS'] ?? []);

if (file_exists(dirname(__DIR__, 2).'/vendor/autoload.php')) {
    if (true === (require_once dirname(__DIR__, 2).'/vendor/autoload.php') || empty($_SERVER['SCRIPT_FILENAME'])) {
        return;
    }

    $app = require $_SERVER['SCRIPT_FILENAME'];
    $runtime = $_SERVER['APP_RUNTIME'] ?? SymfonyRuntime::class;
    $runtime = new $runtime($_SERVER['APP_RUNTIME_OPTIONS']);
    [$app, $args] = $runtime->getResolver($app)->resolve();
    exit($runtime->getRunner($app(...$args))->run());
}

if (!file_exists(dirname(__DIR__, 6).'/vendor/autoload_runtime.php')) {
    throw new LogicException('Autoloader not found.');
}

require dirname(__DIR__, 6).'/vendor/autoload_runtime.php';

$kernel->handle(new Request())->send();
            echo "\n";
            $kernel->handle(new Request())->send();
            echo "\n";

            return 0;
        });
    }
};

[$app, $args] = $runtime->getResolver(require __DIR__.'/kernel.php')->resolve();
echo $runtime->getRunner($app(...$args))->run();

$console = $this->console ??= new Application();
            $console->setName($application->getName() ?: $console->getName());

            if (!$application->getName() || !$console->has($application->getName())) {
                $application->setName($_SERVER['argv'][0]);
                $console->add($application);
            }

            $console->setDefaultCommand($application->getName(), true);
            $console->getDefinition()->addOptions($application->getDefinition()->getOptions());

            return $this->getRunner($console);
        }

        if ($application instanceof Application) {
            if (!\in_array(\PHP_SAPI, ['cli', 'phpdbg', 'embed'], true)) {
                echo 'Warning: The console should be invoked via the CLI version of PHP, not the '.\PHP_SAPI.' SAPI'.\PHP_EOL;
            }

            set_time_limit(0);
            $defaultEnv = !isset($this->options['env']) ? ($_SERVER[$this->options['env_var_name']] ?? 'dev') : null;
            $output = $this->output ??= new ConsoleOutput();