func (o *ObjectOptions) SetEvalRetentionBypassFn(f EvalRetentionBypassFn) {
	o.EvalRetentionBypassFn = f
}

// ObjectLayer implements primitives for object API layer.
type ObjectLayer interface {
	// Locking operations on object.
	NewNSLock(bucket string, objects ...string) RWLocker

	// Storage operations.
	Shutdown(context.Context) error

}

// Lookup returns the value and if the key is found.
func (c *MapClaims) Lookup(key string) (value string, ok bool) {
	if c == nil {
		return "", false
	}
	var vinterface interface{}
	vinterface, ok = c.MapClaims[key]
	if ok {
		value, ok = vinterface.(string)
	}
	return
}

// SetExpiry sets expiry in unix epoch secs
func (c *MapClaims) SetExpiry(t time.Time) {
	c.MapClaims["exp"] = t.Unix()
}

type NoPayload struct{}

// Msgsize returns 0.
func (p NoPayload) Msgsize() int {
	return 0
}

// UnmarshalMsg satisfies the interface, but is a no-op.
func (NoPayload) UnmarshalMsg(bytes []byte) ([]byte, error) {
	return bytes, nil
}

// MarshalMsg satisfies the interface, but is a no-op.
func (NoPayload) MarshalMsg(bytes []byte) ([]byte, error) {
	return bytes, nil
}

}

var bufPool = sync.Pool{
	New: func() interface{} {
		// make a buffer with a reasonable capacity.
		return bytes.NewBuffer(make([]byte, 0, maxRecordSize))
	},
}

var bufioWriterPool = sync.Pool{
	New: func() interface{} {
		// io.Discard is just used to create the writer. Actual destination
		// writer is set later by Reset() before using it.

// errors - upon errors the returned claims map will be empty.
func mustGetClaimsFromToken(r *http.Request) map[string]interface{} {
	claims, _ := getClaimsFromToken(getSessionToken(r))
	return claims
}

func getClaimsFromTokenWithSecret(token, secret string) (map[string]interface{}, error) {
	// JWT token for x-amz-security-token is signed with admin
	// secret key, temporary credentials become invalid if

	JSON, Quiet               bool
	Anonymous                 bool
	StrictS3Compat            bool
	Addr, ConsoleAddr         string
	ConfigDir, CertsDir       string
	configDirSet, certsDirSet bool
	Interface                 string

	RootUser, RootPwd string

	FTP  []string
	SFTP []string

	UserTimeout             time.Duration
	ConnReadDeadline        time.Duration
	ConnWriteDeadline       time.Duration

						fmt.Println("WriteFile:", err)
					}
				})
				if err != nil {
					return nil, err
				}
			}
			if ndjson {
				return buf.Bytes(), nil
			}
			var msi map[string]interface{}
			dec := json.NewDecoder(buf)
			// Use number to preserve integers.
			dec.UseNumber()
			err = dec.Decode(&msi)
			if err != nil {
				return nil, err
			}

			t.Errorf("deserialize mismatch, key %v\nwant: %#v\ngot:  %#v", wkey, wval, gotv)
		}
	}
}

// equalAsJSON returns whether the values are equal when encoded as JSON.
func equalAsJSON(a, b interface{}) bool {
	aj, err := json.Marshal(a)
	if err != nil {
		panic(err)
	}
	bj, err := json.Marshal(b)
	if err != nil {
		panic(err)
	}
	return bytes.Equal(aj, bj)

		Enabled:            false,
		arnProviderCfgsMap: map[arn.ARN]*providerCfg{},
		ProviderCfgs:       map[string]*providerCfg{},
		pubKeys: publicKeys{
			RWMutex: &sync.RWMutex{},
			pkMap:   map[string]interface{}{},
		},
		roleArnPolicyMap: map[arn.ARN]string{},
		transport:        openIDClientTransport,
		closeRespFn:      closeRespFn,
	}

	seenClientIDs := set.NewStringSet()

	// Sending a value on logCh must hold read lock on logChMu (to avoid closing)
	logCh   chan interface{}
	logChMu sync.RWMutex

	// store to persist and replay the logs to the target
	// to avoid missing events when the target is down.
	store          store.Store[interface{}]
	storeCtxCancel context.CancelFunc

	initKafkaOnce      once.Init
	initQueueStoreOnce once.Init