loadMappedPolicies(ctx context.Context, userType IAMUserType, isGroup bool, m *xsync.MapOf[string, MappedPolicy]) error
	saveIAMConfig(ctx context.Context, item any, path string, opts ...options) error
	loadIAMConfig(ctx context.Context, item any, path string) error
	deleteIAMConfig(ctx context.Context, path string) error
	savePolicyDoc(ctx context.Context, policyName string, p PolicyDoc) error

						if _, isZero := pkField.ValueOf(db.Statement.Context, rv); isZero {
							db.AddError(pkField.Set(db.Statement.Context, rv, insertID))
							insertID += pkField.AutoIncrementIncrement
						}
					}
				}
			case reflect.Struct:
				_, isZero := pkField.ValueOf(db.Statement.Context, db.Statement.ReflectValue)
				if isZero {
					db.AddError(pkField.Set(db.Statement.Context, db.Statement.ReflectValue, insertID))
				}
			}

}

func (ies *IAMEtcdStore) deleteIAMConfig(ctx context.Context, path string) error {
	return deleteKeyEtcd(ctx, ies.client, path)
}

func (ies *IAMEtcdStore) loadPolicyDocWithRetry(ctx context.Context, policy string, m map[string]PolicyDoc, _ int) error {
	return ies.loadPolicyDoc(ctx, policy, m)
}

func (ies *IAMEtcdStore) loadPolicyDoc(ctx context.Context, policy string, m map[string]PolicyDoc) error {

// specific error.
func toAdminAPIErrCode(ctx context.Context, err error) APIErrorCode {
	if errors.Is(err, errErasureWriteQuorum) {
		return ErrAdminConfigNoQuorum
	}
	return toAPIErrorCode(ctx, err)
}

// wraps export error for more context
func exportError(ctx context.Context, err error, fname, entity string) APIError {
	if entity == "" {

// on how it is used.
func LogOnceIf(ctx context.Context, subsystem string, err error, id string, errKind ...any) {
	if logIgnoreError(err) {
		return
	}
	logOnce.logOnceIf(ctx, subsystem, err, id, errKind...)
}

// LogOnceConsoleIf - similar to LogOnceIf but exclusively only logs to console target.
func LogOnceConsoleIf(ctx context.Context, subsystem string, err error, id string, errKind ...any) {

	}
}

// SetReqInfo sets ReqInfo in the context.
func SetReqInfo(ctx context.Context, req *ReqInfo) context.Context {
	if ctx == nil {
		LogIf(context.Background(), "", fmt.Errorf("context is nil"))
		return nil
	}
	return context.WithValue(ctx, contextLogKey, req)
}

// GetReqInfo returns ReqInfo if set.
func GetReqInfo(ctx context.Context) *ReqInfo {
	if ctx != nil {

// the execution of the server.
func LogAlwaysIf(ctx context.Context, subsystem string, err error, errKind ...any) {
	if err == nil {
		return
	}
	logIf(ctx, subsystem, err, errKind...)
}

// LogIf prints a detailed error message during
// the execution of the server, if it is not an
// ignored error.
func LogIf(ctx context.Context, subsystem string, err error, errKind ...any) {
	if logIgnoreError(err) {

		nodesUpDown:         newNodesUpDownCache(),
	}
}

type nodesOnline struct {
	Online, Offline int
}

func newNodesUpDownCache() *cachevalue.Cache[nodesOnline] {
	loadNodesUpDown := func(ctx context.Context) (v nodesOnline, err error) {
		v.Online, v.Offline = globalNotificationSys.GetPeerOnlineCount()
		return v, err
	}
	return cachevalue.NewFromFunc(1*time.Minute,
		cachevalue.Opts{ReturnLastGood: true},

    /**
     * Context flag for sequence checking capability
     */
    public static final int SEQUENCE_CHECKING = 0x10;
    /**
     * Context flag for anonymity capability
     */
    public static final int ANONYMITY = 0x08;
    /**
     * Context flag for confidentiality (encryption) capability
     */
    public static final int CONFIDENTIALITY = 0x04;
    /**
     * Context flag for integrity (signing) capability
     */

			case reflect.Struct:
				tx.AddError(rel.Field.Set(tx.Statement.Context, data, elem.Interface()))
			case reflect.Slice, reflect.Array:
				if reflectFieldValue.Type().Elem().Kind() == reflect.Ptr {
					tx.AddError(rel.Field.Set(tx.Statement.Context, data, reflect.Append(reflectFieldValue, elem).Interface()))
				} else {
					tx.AddError(rel.Field.Set(tx.Statement.Context, data, reflect.Append(reflectFieldValue, elem.Elem()).Interface()))
				}