err := json.Unmarshal(envoyResponse, envoyDump)
	if err != nil {
		return nil, err
	}
	c.envoy = envoyDump
	c.w = w
	c.context = 7
	c.location = "Local" // the time.Location for formatting time.Time instances
	return c, nil
}

// NewXdsComparator is a comparator constructor
func NewXdsComparator(w io.Writer, istiodResponses map[string]*discovery.DiscoveryResponse, envoyResponse []byte) (*Comparator, error) {

		v T
		e error
	}]
	lastUpdateMs atomic.Int64
	updating     sync.Mutex
}

// New allocates a new cached value instance. Tt must be initialized with
// `.TnitOnce`.
func New[T any]() *Cache[T] {
	return &Cache[T]{}
}

// NewFromFunc allocates a new cached value instance and initializes it with an
// update function, making it ready for use.

	}
	if n.lockMap[resource].ref == 0 {
		// Remove from the map if there are no more references.
		delete(n.lockMap, resource)
	}
}

// dsync's distributed lock instance.
type distLockInstance struct {
	rwMutex *dsync.DRWMutex
	opsID   string
}

// Lock - block until write lock is taken or timeout has occurred.

	testServer.Server.TLS = config
	testServer.Server.StartTLS()
	return testServer
}

// Starts the test server and returns the TestServer instance.
func StartTestServer(t TestErrHandler, instanceType string) TestServer {
	// create an instance of TestServer.
	testServer := UnstartedTestServer(t, instanceType)
	testServer.Server.Start()
	return testServer
}

	startTime            time.Time // Start time for window
	expMovingAvg         float64   // Previously calculate sliding window
}

// newBucketMeasurement creates a new instance of the measurement with the initial start time.
func newBucketMeasurement(initTime time.Time) *bucketMeasurement {
	return &bucketMeasurement{
		startTime: initTime,
	}
}

		diag.Info:    "",           // no special color for info messages
		diag.Warning: "\033[33m",   // yellow
		diag.Error:   "\033[1;31m", // bold red
	}
)

// render turns a Message instance into a string with an option of colored bash output
func render(m diag.Message, colorize bool) string {
	return fmt.Sprintf("%s%v%s [%v]%s %s",
		colorPrefix(m, colorize), m.Type.Level(), colorSuffix(colorize),

var includeConfigType bool

func SetPrintConfigTypeInSummary(p bool) {
	includeConfigType = p
}

// NewSDSWriter generates a new instance which conforms to SDSWriter interface
func NewSDSWriter(w io.Writer, format Format) SDSWriter {
	return &sdsWriter{
		w:      w,
		output: format,
	}
}

	centralOpts.AttachControlPlaneFlags(debugCommand)
	debugCommand.Long += "\n\n" + util.ExperimentalMsg
	debugCommand.PersistentFlags().BoolVar(&internalDebugAllIstiod, "all", false,
		"Send the same request to all instances of Istiod. Only applicable for in-cluster deployment.")
	return debugCommand
}

var internalDebugAllIstiod bool

type DebugWriter struct {
	Writer                 io.Writer
	Namespace              string

// Scanner reads more data and continues scanning; if there is no more
// data--if atEOF was true--the [Scanner] returns. If the data does not
// yet hold a complete token, for instance if it has no newline while
// scanning lines, a [SplitFunc] can return (0, nil, nil) to signal the
// [Scanner] to read more data into the slice and try again with a
// longer slice starting at the same point in the input.
//

			break
		}
	}
	return responses, nil
}

// queryDebugSynczViaAgents sends a debug/syncz xDS request via Istio Agents.
// By this way, even if istioctl cannot access a specific `istiod` instance directly,
// `istioctl` can access the debug endpoint.
// If `all` is true, `queryDebugSynczViaAgents` iterates all the pod having a proxy
// except the pods of which status information is already queried.