Laravel\Lumen\Concerns\RoutesRequests::run PHP Method

    public function run($request = null)
    {
        $response = $this->dispatch($request);
        if ($response instanceof SymfonyResponse) {
            $response->send();
        } else {
            echo (string) $response;
        }
        if (count($this->middleware) > 0) {
            $this->callTerminableMiddleware($response);
        }
    }