}

func (e Error) Error() string {
	if e.Cause == nil {
		return e.Err
	}
	return fmt.Sprintf("%s: %v", e.Err, e.Cause)
}

func errKeyCreationFailed(err error) Error {
	return Error{
		Code:    http.StatusInternalServerError,
		APICode: "kms:KeyCreationFailed",
		Err:     "failed to create KMS key",
		Cause:   err,
	}
}

func errKeyDeletionFailed(err error) Error {

func (z *PoolStatus) Msgsize() (s int) {
	s = 1 + 3 + msgp.IntSize + 3 + msgp.StringPrefixSize + len(z.CmdLine) + 3 + msgp.TimeSize + 4
	if z.Decommission == nil {
		s += msgp.NilSize
	} else {
		s += z.Decommission.Msgsize()
	}
	return
}

// DecodeMsg implements msgp.Decodable
func (z *decomError) DecodeMsg(dc *msgp.Reader) (err error) {
	var field []byte

}

// Version returns the type of the KMS.
func (s StubKMS) Version(ctx context.Context) (string, error) {
	return "stub", nil
}

// APIs returns supported APIs
func (s StubKMS) APIs(ctx context.Context) ([]madmin.KMSAPI, error) {
	return []madmin.KMSAPI{
		{Method: http.MethodGet, Path: "stub/path"},
	}, nil
}

// Status returns a set of endpoints and their KMS status.

func (m Migrator) ColumnTypes(value interface{}) ([]gorm.ColumnType, error) {
	columnTypes := make([]gorm.ColumnType, 0)
	execErr := m.RunWithValue(value, func(stmt *gorm.Statement) (err error) {
		rows, err := m.DB.Session(&gorm.Session{}).Table(stmt.Table).Limit(1).Rows()
		if err != nil {
			return err
		}

		defer func() {
			err = rows.Close()
		}()

	enableSha256     bool
	enableMultipart  bool
	creds            auth.Credentials
}

// Get the max throughput and iops numbers.
func objectSpeedTest(ctx context.Context, opts speedTestOpts) chan madmin.SpeedTestResult {
	ch := make(chan madmin.SpeedTestResult, 1)
	go func() {
		defer xioutil.SafeClose(ch)

		concurrency := opts.concurrencyStart

		if opts.autotune {

	uuid []byte
}

// Write -  implement hash.Hash Write
func (u UUIDHash) Write(p []byte) (n int, err error) {
	return len(p), nil
}

// Sum -  implement md5.Sum
func (u UUIDHash) Sum(b []byte) []byte {
	return u.uuid
}

// Reset -  implement hash.Hash Reset
func (u UUIDHash) Reset() {}

// Size -  implement hash.Hash Size
func (u UUIDHash) Size() int {
	return len(u.uuid)
}

	sendErr  bool
	closeErr bool
}

func (target ExampleTarget) ID() TargetID {
	return target.id
}

// Save - Sends event directly without persisting.
func (target ExampleTarget) Save(eventData Event) error {
	return target.send(eventData)
}

// Store - Returns a nil store.
func (target ExampleTarget) Store() TargetStore {
	return nil
}

func (target ExampleTarget) send(eventData Event) error {

	DownloadTimes madmin.TimeDurations
	DownloadTTFB  madmin.TimeDurations
	Error         string
}

func newRandomReader(size int) io.Reader {
	return io.LimitReader(randreader.New(), int64(size))
}

type firstByteRecorder struct {
	t *time.Time
	r io.Reader
}

func (f *firstByteRecorder) Read(p []byte) (n int, err error) {
	if f.t != nil || len(p) == 0 {
		return f.r.Read(p)
	}

		}
	}
}

func (s *erasureSets) GetLockers(setIndex int) func() ([]dsync.NetLocker, string) {
	return func() ([]dsync.NetLocker, string) {
		lockers := make([]dsync.NetLocker, len(s.erasureLockers[setIndex]))
		copy(lockers, s.erasureLockers[setIndex])
		return lockers, s.erasureLockOwner
	}
}

func (s *erasureSets) GetEndpointStrings(setIndex int) func() []string {
	return func() []string {

	}
	ps.Unlock()
	close(doneCh2)
}

type maskString string

func (m maskString) Mask() uint64 {
	return 1
}

func TestPubSub(t *testing.T) {
	ps := New[Maskable, Maskable](1)
	ch1 := make(chan Maskable, 1)
	doneCh1 := make(chan struct{})
	defer close(doneCh1)
	if err := ps.Subscribe(MaskAll, ch1, doneCh1, func(entry Maskable) bool { return true }); err != nil {
		t.Fatalf("unexpected error: %v", err)