// Only verify this on baremetal setups, DNS is not available in orchestrated
			// environments so we can't do much here.
			pathIPMap := make(map[string]set.StringSet)
			hostIPCache := make(map[string]set.StringSet)
			for _, endpoint := range endpoints {
				host := endpoint.Hostname()
				var hostIPSet set.StringSet
				if host != "" {
					var ok bool

	if trailer {
		// Discard anything unsigned.
		req.Trailer = make(http.Header)
		trailers := req.Header.Values(awsTrailerHeader)
		for _, key := range trailers {
			req.Trailer.Add(key, "")
		}
	} else {
		req.Trailer = nil
	}
	return &s3UnsignedChunkedReader{
		trailers: req.Trailer,
		reader:   bufio.NewReader(req.Body),
		buffer:   make([]byte, 64*1024),
	}, ErrNone
}

	// Add the serverName and poolIndex labels to all non-cluster metrics.
	//
	// Also create metric group maps and set the cache.
	metricsCache := newMetricsCache()
	mgMap := make(map[collectorPath]*MetricsGroup)
	bucketMGMap := make(map[collectorPath]*MetricsGroup)
	for _, mg := range allMetricGroups {
		if !strings.HasPrefix(string(mg.CollectorPath), clusterBasePath) {
			mg.AddExtraLabels(

	})
	return list
}

// NewTargetList - creates TargetList.
func NewTargetList(ctx context.Context) *TargetList {
	list := &TargetList{
		targets:     make(map[TargetID]Target),
		queue:       make(chan asyncEvent, maxConcurrentAsyncSend),
		targetStats: make(map[TargetID]targetStat),
		ctx:         ctx,
	}
	return list

	r := &rebalanceMeta{
		ID:        shortuuid.New(),
		PoolStats: make([]*rebalanceStats, len(z.serverPools)),
	}

	// Fetch disk capacity and available space.
	si := z.StorageInfo(ctx, true)
	diskStats := make([]struct {
		AvailableSpace uint64
		TotalSpace     uint64
	}, len(z.serverPools))
	var totalCap, totalFree uint64

After you have tests, then you can upgrade the **FastAPI** version to a more recent one, and make sure that all your code is working correctly by running your tests.

If everything is working, or after you make the necessary changes, and all your tests are passing, then you can pin your `fastapi` to that new recent version.

## About Starlette

	// map peer deployment ID to resync ID
	peerResyncMap map[string]resyncState
}

func newSiteResyncMetrics(ctx context.Context) *siteResyncMetrics {
	s := siteResyncMetrics{
		resyncStatus:  make(map[string]SiteResyncStatus),
		peerResyncMap: make(map[string]resyncState),
	}
	go s.save(ctx)
	go s.init(ctx)
	return &s
}

// init site resync metrics
func (sm *siteResyncMetrics) init(ctx context.Context) {

func kvFields(input string, keys []string) []string {
	valueIndexes := make([]int, 0, len(keys))
	for _, key := range keys {
		i := strings.Index(input, key+KvSeparator)
		if i == -1 {
			continue
		}
		valueIndexes = append(valueIndexes, i)
	}

	sort.Ints(valueIndexes)
	fields := make([]string, len(valueIndexes))
	for i := range valueIndexes {
		j := i + 1
		if j < len(valueIndexes) {

			if err != nil {
				err = msgp.WrapError(err, "CmdLines")
				return
			}
			if cap(z.CmdLines) >= int(zb0002) {
				z.CmdLines = (z.CmdLines)[:zb0002]
			} else {
				z.CmdLines = make([]string, zb0002)
			}
			for za0001 := range z.CmdLines {
				z.CmdLines[za0001], err = dc.ReadString()
				if err != nil {
					err = msgp.WrapError(err, "CmdLines", za0001)
					return
				}
			}

	if len(domains) == 0 {
		return ""
	}
	if len(domains) == 1 {
		return domains[0]
	}

	// Return the shortest non-numeric domain.  Count of domains seems uninteresting.
	maximum := 2
	withoutPort := make([]string, 0, len(domains))
	for _, d := range domains {
		if !strings.Contains(d, ":") {
			withoutPort = append(withoutPort, d)
			// if the domain contains IPv6, such as [fd00:10:96::7fc7] and [fd00:10:96::7fc7]:8090