// written.
	trailers []string

	handlerDone atomic.Bool // set true when the handler exits

	// Buffers for Date, Content-Length, and status code
	dateBuf   [len(TimeFormat)]byte
	clenBuf   [10]byte
	statusBuf [3]byte

	// closeNotifyCh is the channel returned by CloseNotify.
	// TODO(bradfitz): this is currently (for Go 1.8) always
	// non-nil. Make this lazily-created again as it used to be?
	closeNotifyCh  chan bool

	}

	var addrs []Addr
	for _, ifc := range ifcs {
		status := ifc.Name + "/status"
		statusf, err := open(status)
		if err != nil {
			return nil, err
		}
		defer statusf.close()

		// Read but ignore first line as it only contains the table header.
		// See https://9p.io/magic/man2html/3/ip
		if _, ok := statusf.readLine(); !ok {
			return nil, errors.New("cannot read header line for interface: " + status)
		}

				t.Fatalf(".spec.num: expected: %v, got: %v", int64(10), specNum)
			}

			statusNum, found, err := unstructured.NestedInt64(updatedStatusInstance.Object, "status", "num")
			if !found || err != nil {
				t.Fatalf("unable to get .status.num")
			}
			if statusNum != int64(20) {
				t.Fatalf(".status.num: expected: %v, got: %v", int64(20), statusNum)
			}