return false
	}
	defer ec.queue.Done(key)

	err := ec.syncFn(key)
	if err == nil {
		ec.queue.Forget(key)
		return true
	}

	utilruntime.HandleError(fmt.Errorf("%v failed with: %v", key, err))
	ec.queue.AddRateLimited(key)

	return true
}

// sync is used to turn CRDs into the Established state.
func (ec *EstablishingController) sync(key string) error {
	cachedCRD, err := ec.crdLister.Get(key)

	// To allow injection for testing.
	syncFn func(key string) error

	queue workqueue.TypedRateLimitingInterface[string]

	// last protectedAnnotation value this controller updated the condition per CRD name (to avoid two
	// different version of the apiextensions-apiservers in HA to fight for the right message)
	lastSeenProtectedAnnotationLock sync.Mutex
	lastSeenProtectedAnnotation     map[string]string
}

	crdSynced cache.InformerSynced

	// To allow injection for testing.
	syncFn func(key string) error

	queue workqueue.TypedRateLimitingInterface[string]

	// last generation this controller updated the condition per CRD name (to avoid two
	// different version of the apiextensions-apiservers in HA to fight for the right message)
	lastSeenGenerationLock sync.Mutex
	lastSeenGeneration     map[string]int64
}

	crdLister  listers.CustomResourceDefinitionLister
	crdsSynced cache.InformerSynced

	// To allow injection for testing.
	syncFn func(string) error

	queue workqueue.TypedRateLimitingInterface[string]

	openAPIV3Service *handler3.OpenAPIService

	// specs per version and per CRD name
	lock             sync.Mutex
	specsByGVandName map[schema.GroupVersion]map[string]*spec3.OpenAPI
}

	crdsSynced cache.InformerSynced

	// To allow injection for testing.
	syncFn func(string) error

	queue workqueue.TypedRateLimitingInterface[string]

	staticSpec *spec.Swagger

	openAPIService *handler.OpenAPIService

	// specs by name. The specs are lazily constructed on request.
	// The lock is for the map only.
	lock        sync.Mutex
	specsByName map[string]*specCache
}

import "istio.io/istio/pkg/kube"

type Syncer interface {
	WaitUntilSynced(stop <-chan struct{}) bool
	HasSynced() bool
}

var (
	_ Syncer = channelSyncer{}
	_ Syncer = pollSyncer{}
)

type channelSyncer struct {
	name   string
	synced <-chan struct{}
}

func (c channelSyncer) WaitUntilSynced(stop <-chan struct{}) bool {
	return waitForCacheSync(c.name, stop, c.synced)
}

// go work sync

package workcmd

import (
	"cmd/go/internal/base"
	"cmd/go/internal/gover"
	"cmd/go/internal/imports"
	"cmd/go/internal/modload"
	"cmd/go/internal/toolchain"
	"context"

	"golang.org/x/mod/module"
)

var cmdSync = &base.Command{
	UsageLine: "go work sync",
	Short:     "sync workspace build list to modules",
	Long: `Sync syncs the workspace's build list back to the

	return res
}

func (j *join[T]) Register(f func(o Event[T])) Syncer {
	return registerHandlerAsBatched[T](j, f)
}

func (j *join[T]) RegisterBatch(f func(o []Event[T], initialSync bool), runExistingState bool) Syncer {
	sync := multiSyncer{}
	for _, c := range j.collections {
		sync.syncers = append(sync.syncers, c.RegisterBatch(f, runExistingState))
	}
	return sync
}

// nolint: unused // (not true, its to implement an interface)

	// Private markers (only known to cmd/compile).
	SyncPrivate

	SyncFuncExt
	SyncVarExt
	SyncTypeExt
	SyncPragma

	SyncExprList
	SyncExprs
	SyncExpr
	SyncExprType
	SyncAssign
	SyncOp
	SyncFuncLit
	SyncCompLit

	SyncDecl
	SyncFuncBody
	SyncOpenScope
	SyncCloseScope
	SyncCloseAnotherScope
	SyncDeclNames
	SyncDeclName

	SyncStmts
	SyncBlockStmt
	SyncIfStmt

	return maps.Values(s.vals)
}

func (s *staticList[T]) Register(f func(o Event[T])) Syncer {
	return registerHandlerAsBatched(s, f)
}

func (s *staticList[T]) Synced() Syncer {
	return alwaysSynced{}
}

func (s *staticList[T]) RegisterBatch(f func(o []Event[T], initialSync bool), runExistingState bool) Syncer {
	if runExistingState {
		f(slices.Map(s.List(), func(e T) Event[T] {
			return Event[T]{