Kind:        KindUint64,
		Cumulative:  true,
	},
	{
		Name:        "/gc/cycles/forced:gc-cycles",
		Description: "Count of completed GC cycles forced by the application.",
		Kind:        KindUint64,
		Cumulative:  true,
	},
	{
		Name:        "/gc/cycles/total:gc-cycles",
		Description: "Count of all completed GC cycles.",
		Kind:        KindUint64,
		Cumulative:  true,
	},
	{

type ValueKind int

const (
	// KindBad indicates that the Value has no type and should not be used.
	KindBad ValueKind = iota

	// KindUint64 indicates that the type of the Value is a uint64.
	KindUint64

	// KindFloat64 indicates that the type of the Value is a float64.
	KindFloat64

	// KindFloat64Histogram indicates that the type of the Value is a *Float64Histogram.

		a  any
	)
	b.Run("switch-checked", func(b *testing.B) {
		for i := 0; i < b.N; i++ {
			for _, v := range vs {
				switch v.Kind() {
				case KindString:
					s = v.String()
				case KindInt64:
					ii = v.Int64()
				case KindUint64:
					u = v.Uint64()
				case KindFloat64:
					f = v.Float64()
				case KindBool:
					bb = v.Bool()
				case KindDuration:
					d = v.Duration()
				case KindAny:
					a = v.Any()

// KindAny is 0 so that a zero Value represents nil.

const (
	KindAny Kind = iota
	KindBool
	KindDuration
	KindFloat64
	KindInt64
	KindString
	KindTime
	KindUint64
	KindGroup
	KindLogValuer
)

var kindStrings = []string{
	"Any",
	"Bool",
	"Duration",
	"Float64",
	"Int64",
	"String",
	"Time",
	"Uint64",
	"Group",

	metrics.Read(m[:])
	if kind := m[0].Value.Kind(); kind != metrics.KindUint64 {
		t.Fatalf("NonDefault kind = %v, want uint64", kind)
	}

	s := New(name)
	s.Value()
	s.IncNonDefault()
	s.IncNonDefault()
	s.IncNonDefault()
	metrics.Read(m[:])
	if kind := m[0].Value.Kind(); kind != metrics.KindUint64 {
		t.Fatalf("NonDefault kind = %v, want uint64", kind)
	}

	return err
}

func (h *fastTextHandler) appendValue(buf *buffer.Buffer, v slog.Value) {
	switch v.Kind() {
	case slog.KindString:
		buf.WriteString(v.String())
	case slog.KindInt64:
		*buf = strconv.AppendInt(*buf, v.Int64(), 10)
	case slog.KindUint64:
		*buf = strconv.AppendUint(*buf, v.Uint64(), 10)
	case slog.KindFloat64:
		*buf = strconv.AppendFloat(*buf, v.Float64(), 'g', -1, 64)
	case slog.KindBool:

	// Iterate over all results.
	for _, sample := range samples {
		// Pull out the name and value.
		name, value := sample.Name, sample.Value

		// Handle each sample.
		switch value.Kind() {
		case metrics.KindUint64:
			fmt.Printf("%s: %d\n", name, value.Uint64())
		case metrics.KindFloat64:
			fmt.Printf("%s: %f\n", name, value.Float64())
		case metrics.KindFloat64Histogram:

	s.buf.WriteByte('"')
}

func appendJSONValue(s *handleState, v Value) error {
	switch v.Kind() {
	case KindString:
		s.appendString(v.str())
	case KindInt64:
		*s.buf = strconv.AppendInt(*s.buf, v.Int64(), 10)
	case KindUint64:
		*s.buf = strconv.AppendUint(*s.buf, v.Uint64(), 10)
	case KindFloat64:
		// json.Marshal is funny about floats; it doesn't
		// always match strconv.AppendFloat. So just call it.

pkg log/slog, const KindInt64 = 4 #56345
pkg log/slog, const KindInt64 Kind #56345
pkg log/slog, const KindLogValuer = 9 #56345
pkg log/slog, const KindLogValuer Kind #56345
pkg log/slog, const KindString = 5 #56345
pkg log/slog, const KindString Kind #56345
pkg log/slog, const KindTime = 6 #56345
pkg log/slog, const KindTime Kind #56345
pkg log/slog, const KindUint64 = 7 #56345

		metrics.Read(samples[gen%2])
		for i := range samples[gen%2] {
			name := samples[gen%2][i].Name
			vNew, vOld := samples[gen%2][i].Value, samples[1-(gen%2)][i].Value

			switch vNew.Kind() {
			case metrics.KindUint64:
				new := vNew.Uint64()
				old := vOld.Uint64()
				if new < old {
					t.Errorf("%s decreased: %d < %d", name, new, old)
				}
			case metrics.KindFloat64:
				new := vNew.Float64()