HasSynced() bool
}

type queueImpl struct {
	delay     time.Duration
	tasks     []*queueTask
	cond      *sync.Cond
	closing   bool
	closed    chan struct{}
	closeOnce *sync.Once
	// initialSync indicates the queue has initially "synced".
	initialSync *atomic.Bool
	id          string
	metrics     *queueMetrics
}

	return fw.result
}

// Stop stops the upstream watch, which will eventually stop this watch.
func (fw *filteredWatch) Stop() {
	fw.incoming.Stop()
}

// loop waits for new values, filters them, and resends them.
func (fw *filteredWatch) loop() {
	defer close(fw.result)
	for event := range fw.incoming.ResultChan() {
		filtered, keep := fw.f(event)
		if keep {
			fw.result <- filtered
		}
	}
}

// if the loop should be aborted.
type ConditionFunc func() (done bool, err error)

// ConditionWithContextFunc returns true if the condition is satisfied, or an error
// if the loop should be aborted.
//
// The caller passes along a context that can be used by the condition function.
type ConditionWithContextFunc func(context.Context) (done bool, err error)

func NewNoneEndpointReconciler() EndpointReconciler {
	return &noneEndpointReconciler{}
}

// ReconcileEndpoints noop reconcile
func (r *noneEndpointReconciler) ReconcileEndpoints(serviceName string, ip net.IP, endpointPorts []corev1.EndpointPort, reconcilePorts bool) error {
	return nil
}

// RemoveEndpoints noop reconcile

// pause the event loop and spawn a new goroutine.
// Other wrapped functions which are triggered during a call from Go to JavaScript
// get executed on the same goroutine.
//
// As a consequence, if one wrapped function blocks, JavaScript's event loop
// is blocked until that function returns. Hence, calling any async JavaScript
// API, which requires the event loop, like fetch (http.Client), will cause an

	return opFunc
}

func isOperationRunSerially(ch <-chan interface{}, quit chan<- interface{}) bool {
	defer close(quit)
	numOperationsStarted := 0
loop:
	for {
		select {
		case <-ch:
			numOperationsStarted++
			if numOperationsStarted > 1 {
				return false
			}
		case <-time.After(5 * time.Second):
			break loop
		}
	}
	return true
}

//
// `X` may contain symbolic predicates and the operations corresponding to these
// symbolic predicates are either in frame `loop` or outside it.  The symbols
// that are inside frame `loop` are loop variant (i.e. can have different
// liveness in each loop iteration) and the symbols that are outside frame
// `loop` are loop invariant (i.e. have the same liveness across all
// iterations).
class AndRecurrencePredicate : public Predicate {
 public:

		name                   string
		addrs                  []v1.NodeAddress
		err                    error
		wantAddrs              []v1.NodeAddress
		wantErr                bool
		shouldDisableInstances bool
	}{
		{
			name:    "first sync loop encounters an error",
			err:     errors.New("bad"),
			wantErr: true,
		},
		{
			name:                   "failed to get instances from cloud provider",

	return f
}

func (c *compiler) quest(f1 frag, nongreedy bool) frag {
	f := c.inst(InstAlt)
	i := &c.p.Inst[f.i]
	if nongreedy {
		i.Arg = f1.i
		f.out = makePatchList(f.i << 1)
	} else {
		i.Out = f1.i
		f.out = makePatchList(f.i<<1 | 1)
	}
	f.out = f.out.append(c.p, f1.out)
	return f
}

// loop returns the fragment for the main loop of a plus or star.

	}
}

func RunTests(matchString func(pat, str string) (bool, error), tests []InternalTest) (ok bool) {
	ok = true
	if len(tests) == 0 {
		fmt.Fprintln(os.Stderr, "testing: warning: no tests to run")
		return
	}
	for _, procs := range cpuList {
		runtime.GOMAXPROCS(procs)
		// We build a new channel tree for each run of the loop.
		// collector merges in one channel all the upstream signals from parallel tests.