type SimpleUser struct {
		ID        int64
		Name      string
		UpdatedAt time.Time
		CreatedAt time.Time
	}
	var simpleUsers []SimpleUser
	dryDB := DB.Session(&gorm.Session{DryRun: true, QueryFields: true})

	result := dryDB.Model(&User{}).Find(&simpleUsers, user.ID)
	if !regexp.MustCompile("SELECT .users.*id.*users.*name.*users.*updated_at.*users.*created_at.* FROM .*users").MatchString(result.Statement.SQL.String()) {

		cache.iamUserGroupMemberships[member] = gset
	}

	cache.updatedAt = time.Now()
	return gi.UpdatedAt, nil
}

// RemoveUsersFromGroup - removes users from group, deleting it if it is empty.
func (store *IAMStoreSys) RemoveUsersFromGroup(ctx context.Context, group string, members []string) (updatedAt time.Time, err error) {
	if group == "" {
		return updatedAt, errInvalidArgument
	}

	cache := store.lock()

	if !sys.Initialized() {
		return updatedAt, errServerNotInitialized
	}

	updatedAt, err = sys.store.UpdateServiceAccount(ctx, accessKey, opts)
	if err != nil {
		return updatedAt, err
	}

	sys.notifyForServiceAccount(ctx, accessKey)
	return updatedAt, nil
}

	if change == nil {
		return errSRInvalidRequest(errInvalidArgument)
	}
	// skip overwrite of local update if peer sent stale info
	if !updatedAt.IsZero() {
		if ui, err := globalIAMSys.GetUserInfo(ctx, change.AccessKey); err == nil && ui.UpdatedAt.After(updatedAt) {
			return nil
		}
	}

	var err error

		meta.LifecycleConfigUpdatedAt = updatedAt
	case bucketSSEConfig:
		meta.EncryptionConfigXML = configData
		meta.EncryptionConfigUpdatedAt = updatedAt
	case bucketTaggingConfig:
		meta.TaggingConfigXML = configData
		meta.TaggingConfigUpdatedAt = updatedAt
	case bucketQuotaConfigFile:
		meta.QuotaConfigJSON = configData
		meta.QuotaConfigUpdatedAt = updatedAt
	case objectLockConfig:

			}
		}
	case madmin.SRIAMItemSvcAcc:
		err = globalSiteReplicationSys.PeerSvcAccChangeHandler(ctx, item.SvcAccChange, item.UpdatedAt)
	case madmin.SRIAMItemPolicyMapping:
		err = globalSiteReplicationSys.PeerPolicyMappingHandler(ctx, item.PolicyMapping, item.UpdatedAt)
	case madmin.SRIAMItemSTSAcc:
		err = globalSiteReplicationSys.PeerSTSAccHandler(ctx, item.STSCredential, item.UpdatedAt)

	replLogIf(ctx, globalSiteReplicationSys.BucketMetaHook(ctx, madmin.SRBucketMeta{
		Type:       madmin.SRBucketMetaTypeVersionConfig,
		Bucket:     bucket,
		Versioning: &cfgStr,
		UpdatedAt:  updatedAt,
	}))

	writeSuccessResponseHeadersOnly(w)
}

// GetBucketVersioningHandler - GET Bucket Versioning.
// ----------

	}

	vars := mux.Vars(r)
	group := vars["group"]
	status := vars["status"]

	var (
		err       error
		updatedAt time.Time
	)
	switch status {
	case statusEnabled:
		updatedAt, err = globalIAMSys.SetGroupStatus(ctx, group, true)
	case statusDisabled:
		updatedAt, err = globalIAMSys.SetGroupStatus(ctx, group, false)
	default:
		err = errInvalidArgument
	}
	if err != nil {

		return
	}

	// Call IAM subsystem
	updatedAt, addedOrRemoved, _, err := globalIAMSys.PolicyDBUpdateLDAP(ctx, isAttach, par)
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	respBody := madmin.PolicyAssociationResp{
		UpdatedAt: updatedAt,
	}
	if isAttach {
		respBody.PoliciesAttached = addedOrRemoved
	} else {

				STSCredential: &madmin.SRSTSCredential{
					AccessKey:    cred.AccessKey,
					SecretKey:    cred.SecretKey,
					SessionToken: cred.SessionToken,
					ParentUser:   cred.ParentUser,
				},
				UpdatedAt: updatedAt,
			}))

			mcreds = credentials.NewStaticV4(cred.AccessKey, cred.SecretKey, cred.SessionToken)
		} else {
			mcreds = credentials.NewStaticV4(sa.Credentials.AccessKey, sa.Credentials.SecretKey, "")
		}