// 	var userKey key
	//
	// 	// NewContext returns a new Context that carries value u.
	// 	func NewContext(ctx context.Context, u *User) context.Context {
	// 		return context.WithValue(ctx, userKey, u)
	// 	}
	//
	// 	// FromContext returns the User value stored in ctx, if any.
	// 	func FromContext(ctx context.Context) (*User, bool) {
	// 		u, ok := ctx.Value(userKey).(*User)
	// 		return u, ok
	// 	}

// achieve such a guarantee.

// A Context is an opaque type checking context. It may be used to share
// identical type instances across type-checked packages or calls to
// Instantiate. Contexts are safe for concurrent use.
//
// The use of a shared context does not guarantee that identical instances are
// deduplicated in all cases.
type Context struct {
	mu        sync.Mutex

import (
	corev1 "k8s.io/api/core/v1"
	"k8s.io/apimachinery/pkg/runtime"
	"k8s.io/client-go/rest"

	"istio.io/istio/istioctl/pkg/util/handlers"
	"istio.io/istio/pkg/kube"
	"istio.io/istio/pkg/ptr"
)

type Context interface {
	// CLIClient returns a client for the default revision
	CLIClient() (kube.CLIClient, error)
	// CLIClientWithRevision returns a client for the given revision
	CLIClientWithRevision(rev string) (kube.CLIClient, error)

	"istio.io/istio/pkg/cluster"
	"istio.io/istio/pkg/config/constants"
	"istio.io/istio/pkg/config/host"
	"istio.io/istio/pkg/util/sets"
)

// GatewayContext contains a minimal subset of push context functionality to be exposed to GatewayAPIControllers
type GatewayContext struct {
	ps      *model.PushContext
	cluster cluster.ID
}

func NewGatewayContext(ps *model.PushContext, cluster cluster.ID) GatewayContext {

		return e.NetworksWatcher.Networks()
	}
	return nil
}

// SetPushContext sets the push context with lock protected
func (e *Environment) SetPushContext(pc *PushContext) {
	e.mutex.Lock()
	defer e.mutex.Unlock()
	e.pushContext = pc
}

// PushContext returns the push context with lock protected
func (e *Environment) PushContext() *PushContext {
	e.mutex.RLock()
	defer e.mutex.RUnlock()

	case driver.Rows:
		switch d := dest.(type) {
		case *Rows:
			if d == nil {
				return errNilPtr
			}
			if rows == nil {
				return errors.New("invalid context to convert cursor rows, missing parent *Rows")
			}
			rows.closemu.Lock()
			*d = Rows{
				dc:          rows.dc,
				releaseConn: func(error) {},
				rowsi:       s,
			}
			// Chain the cancel function.

	"istio.io/istio/pkg/log"
)

// NewContext allows tests to use istiodContext without exporting it.  returned context is not threadsafe.
func NewContext(stores map[cluster.ID]model.ConfigStore, cancelCh <-chan struct{}, collectionReporter CollectionReporterFn) analysis.Context {
	return &istiodContext{
		stores:             stores,
		cancelCh:           cancelCh,
		messages:           map[string]*diag.Messages{},

Yan Zhulanow <******@****.***> 1710406416 +0900

const usageMessage = "" +
	`Usage of 'go tool cover':
Given a coverage profile produced by 'go test':
	go test -coverprofile=c.out

Open a web browser displaying annotated source code:
	go tool cover -html=c.out

Write out an HTML file instead of launching a web browser:
	go tool cover -html=c.out -o coverage.html

Display coverage percentages to stdout for each function:
	go tool cover -func=c.out

Yan Zhulanow <******@****.***> 1710406416 +0900