peerVersion := serverHello.vers
	if serverHello.supportedVersion != 0 {
		peerVersion = serverHello.supportedVersion
	}

	vers, ok := c.config.mutualVersion(roleClient, []uint16{peerVersion})
	if !ok {
		c.sendAlert(alertProtocolVersion)
		return fmt.Errorf("tls: server selected unsupported protocol version %x", peerVersion)
	}

	c.vers = vers
	c.haveVers = true
	c.in.version = vers

requiring specific network servers and also to make them 
significantly faster.

A small go get'able test module can be added here by running

	cd cmd/go/testdata
	go run addmod.go path@vers

where path and vers are the module path and version to add here.

For interactive experimentation using this set of modules, run:

	cd cmd/go
	go test -proxy=localhost:1234 &
	export GOPROXY=http://localhost:1234/mod

		clientVersions = supportedVersionsFromMax(clientHello.vers)
	}
	c.vers, ok = c.config.mutualVersion(roleServer, clientVersions)
	if !ok {
		c.sendAlert(alertProtocolVersion)
		return nil, fmt.Errorf("tls: client offered only unsupported versions: %x", clientVersions)
	}
	c.haveVers = true
	c.in.version = c.vers
	c.out.version = c.vers

	if c.config.MinVersion == 0 && c.vers < VersionTLS12 {

        EnumSet<DialectVersion> vers = EnumSet.noneOf(DialectVersion.class);
        for ( DialectVersion ver : values() ) {

            if ( min != null && !ver.atLeast(min) ) {
                continue;
            }

            if ( max != null && !ver.atMost(max) ) {
                continue;
            }

            vers.add(ver);
        }
        return vers;
    }

		outBuf[0] = byte(typ)
		vers := c.vers
		if vers == 0 {
			// Some TLS servers fail if the record version is
			// greater than TLS 1.0 for the initial ClientHello.
			vers = VersionTLS10
		} else if vers == VersionTLS13 {
			// TLS 1.3 froze the record layer version to 1.2.
			// See RFC 8446, Section 5.1.
			vers = VersionTLS12
		}
		outBuf[1] = byte(vers >> 8)
		outBuf[2] = byte(vers)

	go func() {
		cli := Client(c, testConfig)
		if ch, ok := m.(*clientHelloMsg); ok {
			cli.vers = ch.vers
		}
		if _, err := cli.writeHandshakeRecord(m, nil); err != nil {
			testFatal(t, err)
		}
		c.Close()
	}()
	ctx := context.Background()
	conn := Server(s, serverConfig)
	ch, err := conn.readClientHello(ctx)
	if conn.vers == VersionTLS13 {
		hs := serverHandshakeStateTLS13{
			c:           conn,
			ctx:         ctx,

			if u.scanMode != 0 {
				scan = u.scanMode
			}
			if u.object == "" {
				healBucket(u.bucket, scan)
			} else {
				if len(u.versions) > 0 {
					vers := len(u.versions) / 16
					if vers > 0 {
						for i := 0; i < vers; i++ {
							healObject(u.bucket, u.object, uuid.UUID(u.versions[16*i:]).String(), scan)
						}
					}
				} else {
					healObject(u.bucket, u.object, u.versionID, scan)

	},
}

func mvl(s string) []module.Version {
	var list []module.Version
	for _, f := range strings.Split(s, ";") {
		f = strings.TrimSpace(f)
		path, vers, _ := strings.Cut(f, " ")
		list = append(list, module.Version{Path: path, Version: vers})
	}
	return list

		return ""
	}
	var rvPairs []string
	for rev, ver := range *rv {
		if ver == "" {
			ver = "latest"
		}
		rvPairs = append(rvPairs,
			fmt.Sprintf("%s=%s", rev, ver))
	}
	return strings.Join(rvPairs, ",")
}

// Versions returns the Istio versions present in the given RevVerMap.
func (rv *RevVerMap) Versions() IstioVersions {
	if rv == nil {
		return nil
	}
	var vers []IstioVersion
	for _, v := range *rv {

	ErrBadName   = errors.New("bad character in file name")
)

// A Qid represents a 9P server's unique identification for a file.
type Qid struct {
	Path uint64 // the file server's unique identification for the file
	Vers uint32 // version number for given Path
	Type uint8  // the type of the file (syscall.QTDIR for example)
}

// A Dir contains the metadata for a file.
type Dir struct {
	// system-modified data