Amp\Artax\Client::fail PHP Method

    private function fail(RequestCycle $cycle, $error)
    {
        $this->collectRequestCycleWatchers($cycle);
        if ($cycle->socket) {
            $this->socketPool->clear($cycle->socket);
        }
        $cycle->futureResponse->update([Notify::ERROR, $error]);
        $cycle->futureResponse->fail($error);
    }