"os"
	"strings"
	"sync"
	"time"

	"cloud.google.com/go/compute/metadata"

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

var gcecredLog = log.RegisterScope("gcecred", "GCE credential fetcher for istio agent")

// Token refresh frequency is default to 5 minutes.
var rotationInterval = 5 * time.Minute

// GCE VM credential needs refresh if remaining life time is below 25 minutes.

        get() = withValidityAssertion { descriptor.setter != null }

    override val setter: KaPropertySetterSymbol?
        get() = withValidityAssertion {
            if (!descriptor.isVar) {
                return null
            }

            val setter = descriptor.setter ?: return KaFe10DescDefaultPropertySetterSymbol(descriptor, analysisContext)
            KaFe10DescPropertySetterSymbol(setter, analysisContext)
        }

        get() = withValidityAssertion { descriptor.setter != null }

    override val setter: KaPropertySetterSymbol?
        get() = withValidityAssertion {
            if (!descriptor.isVar) {
                return null
            }

            val setter = descriptor.setter ?: return KaFe10DescDefaultPropertySetterSymbol(descriptor, analysisContext)
            KaFe10DescPropertySetterSymbol(setter, analysisContext)
        }

	options := &driver.Options{
		Fetch: new(fetcher),
		Obj:   new(objTool),
		UI:    newUI(),
	}
	err := driver.PProf(options)
	telemetry.CountFlags("pprof/flag:", *flag.CommandLine) // pprof will use the flag package as its default
	if err != nil {
		fmt.Fprintf(os.Stderr, "%v\n", err)
		os.Exit(2)
	}
}

type fetcher struct {
}

	// Parse should call usage and return nil.
	Parse(usage func()) []string
}

// A Fetcher reads and returns the profile named by src, using
// the specified duration and timeout. It returns the fetched
// profile and a string indicating a URL from where the profile
// was fetched, which may be different than src.
type Fetcher interface {
	Fetch(src string, duration, timeout time.Duration) (*profile.Profile, string, error)
}

import (
	"io"
	"net/http"
	"regexp"
	"time"

	"github.com/google/pprof/profile"
)

// Options groups all the optional plugins into pprof.
type Options struct {
	Writer  Writer
	Flagset FlagSet
	Fetch   Fetcher
	Sym     Symbolizer
	Obj     ObjTool
	UI      UI

	// HTTPServer is a function that should block serving http requests,
	// including the handlers specified in args.  If non-nil, pprof will

	// identity.
	WorkloadKeyCertResourceName = "default"

	// GCE is Credential fetcher type of Google plugin
	GCE = "GoogleComputeEngine"

	// JWT is a Credential fetcher type that reads from a JWT token file
	JWT = "JWT"

	// Mock is Credential fetcher type of mock plugin
	Mock = "Mock" // testing only

	// GoogleCAProvider uses the Google CA for workload certificate signing

            declarationRenderer: KaDeclarationRenderer,
            printer: PrettyPrinter,
        ) {
            printer {
                val toRender = listOfNotNull(symbol.getter, symbol.setter).ifEmpty { return }
                append("\n")
                withIndent {
                    "\n".separated(
                        {
                            toRender.firstIsInstanceOrNull<KaPropertyGetterSymbol>()

	os.Exit(m.Run())
}

func kubernetesReleaseVersionTest(version string) (string, error) {
	fetcher := func(string, time.Duration) (string, error) {
		return constants.DefaultKubernetesPlaceholderVersion.String(), nil
	}
	return kubernetesReleaseVersion(version, fetcher)
}

func TestKubernetesReleaseVersion(t *testing.T) {
	tests := []struct {
		name           string
		input          string

        get() = withValidityAssertion {
            val fir = firSymbol.fir as FirSyntheticProperty
            return fir.setter?.delegate?.let { builder.functionLikeBuilder.buildFunctionSymbol(it.symbol) }
        }

    override val setter: KaPropertySetterSymbol?
        get() = withValidityAssertion {