startBenchmark example

        if ($this->context === null) {
            throw new LogicException(
                'Context must be set before run() is called. If you are upgrading from 4.1.x, '
                . 'you need to merge `public/index.php` and `spark` file from `vendor/codeigniter4/framework`.'
            );
        }

        $this->pageCache->setTtl(0);
        $this->bufferLevel = ob_get_level();

        $this->startBenchmark();

        $this->getRequestObject();
        $this->getResponseObject();

        $this->spoofRequestMethod();

        try {
            $this->response = $this->handleRequest($routes, config(Cache::class), $returnResponse);
        } catch (ResponsableInterface|DeprecatedRedirectException $e) {
            $this->outputBufferingEnd();
            if ($e instanceof DeprecatedRedirectException) {