func (t Mask) SingleType() bool {
	return bits.OnesCount64(uint64(t)) == 1
}

// FromUint64 will set a mask to the uint64 value.
func (t *Mask) FromUint64(m uint64) {
	*t = Mask(m)
}

// Merge will merge other into t.
func (t *Mask) Merge(other Mask) {
	*t |= other
}

// MergeMaskable will merge other into t.
func (t *Mask) MergeMaskable(other Maskable) {
	*t |= Mask(other.Mask())
}

	jt, _ := workers.New(int(numHealers))

	healEntryDone := func(name string) healEntryResult {
		return healEntryResult{
			entryDone: true,
			name:      name,
		}
	}

	healEntrySuccess := func(sz uint64) healEntryResult {
		return healEntryResult{
			bytes:   sz,
			success: true,
		}
	}

	healEntryFailure := func(sz uint64) healEntryResult {
		return healEntryResult{
			bytes: sz,

		sma:     newSMA(50),
	}
}

func (rx *XferStats) String() string {
	return fmt.Sprintf("curr=%f avg=%f, peak=%f", rx.curr(), rx.Avg, rx.Peak)
}

func (rx *XferStats) curr() float64 {
	if rx.measure == nil {
		return 0.0
	}
	return rx.measure.getExpMovingAvgBytesPerSecond()
}

func (rx *XferStats) merge(o XferStats) XferStats {
	curr := calcAvg(rx.curr(), o.curr(), rx.N, o.N)
	peak := rx.Peak

		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)
	}
}

func BenchmarkMarshalMsgMetricDescription(b *testing.B) {
	v := MetricDescription{}
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.MarshalMsg(nil)
	}
}

func BenchmarkAppendMsgMetricDescription(b *testing.B) {
	v := MetricDescription{}
	bts := make([]byte, 0, v.Msgsize())

func SelectBuckets(buckets ...string) SelectionFunction {
	if len(buckets) == 0 {
		return func(bucket string) bool {
			return true
		}
	}
	return func(bucket string) bool {
		return slices.Contains(buckets, bucket)
	}
}

// Details for the measured bandwidth
type Details struct {
	LimitInBytesPerSecond            int64   `json:"limitInBits"`
	CurrentBandwidthInBytesPerSecond float64 `json:"currentBandwidth"`
}

type negativeReader struct{}

func (r *negativeReader) Read([]byte) (int, error) { return -1, nil }

func init() {
	testBytes = make([]byte, N)
	for i := 0; i < N; i++ {
		testBytes[i] = 'a' + byte(i%26)
	}
	testString = string(testBytes)
}

// Verify that contents of buf match the string s.
func check(t *testing.T, testname string, buf *Buffer, s string) {
	bytes := buf.Bytes()

}

// Raw - returns the underlying representation.
func (r *Record) Raw() (sql.SelectObjectFormat, any) {
	return r.SelectFormat, r.KVS
}

// WriteJSON - encodes to JSON data.
func (r *Record) WriteJSON(writer io.Writer) error {
	return json.NewEncoder(writer).Encode(r.KVS)
}

// Replace the underlying buffer of json data.
func (r *Record) Replace(k any) error {
	v, ok := k.(jstream.KVS)
	if !ok {

type Record struct {
	// object
	object simdjson.Object
}

// Get - gets the value for a column name.
func (r *Record) Get(name string) (*sql.Value, error) {
	elem := r.object.FindKey(name, nil)
	if elem == nil {
		return nil, nil
	}
	return iterToValue(elem.Iter)
}

func iterToValue(iter simdjson.Iter) (*sql.Value, error) {
	switch iter.Type() {
	case simdjson.TypeString:
		v, err := iter.String()

		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)
	}
}

func BenchmarkMarshalMsgmetacache(b *testing.B) {
	v := metacache{}
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.MarshalMsg(nil)
	}
}

func BenchmarkAppendMsgmetacache(b *testing.B) {
	v := metacache{}
	bts := make([]byte, 0, v.Msgsize())
	bts, _ = v.MarshalMsg(bts[0:0])

	// which is below read quorum.
	erasureDisks := xl.getDisks()
	z.serverPools[0].erasureDisksMu.Lock()
	xl.getDisks = func() []StorageAPI {
		for i := range erasureDisks[:8] {
			erasureDisks[i] = nil
		}
		return erasureDisks
	}
	z.serverPools[0].erasureDisksMu.Unlock()

	t.Run("if-none-match with read quorum failure", func(t *testing.T) {
		// Test Case 1: if-none-match (create only if doesn't exist)