interface HttpKernelInterface

interface HttpKernelInterface {
    public const MAIN_REQUEST = 1;
    public const SUB_REQUEST = 2;
    
    /**
     * Handles a Request to convert it to a Response.
     *
     * When $catch is true, the implementation must catch all exceptions
     * and do its best to convert them to a Response instance.
     *
     * @param int  $type  The type of the request
     *                    (one of HttpKernelInterface::MAIN_REQUEST or HttpKernelInterface::SUB_REQUEST)
     * @param bool $catch Whether to catch exceptions or not
     *
     * @throws \Exception When an Exception occurs during processing
     */
    public function handle(Request $request, int $type = self::MAIN_REQUEST, bool $catch = true) : Response;

}