func fillString(t *testing.T, testname string, buf *Buffer, s string, n int, fus string) string {
	check(t, testname+" (fill 1)", buf, s)
	for ; n > 0; n-- {
		m, err := buf.WriteString(fus)
		if m != len(fus) {
			t.Errorf(testname+" (fill 2): m == %d, expected %d", m, len(fus))
		}
		if err != nil {
			t.Errorf(testname+" (fill 3): err should always be nil, found err == %s", err)
		}
		s += fus

		// Sort keys for deterministic ordering.
		for _, k := range slices.Sorted(maps.Keys(paxHdrs)) {
			rec, err := formatPAXRecord(k, paxHdrs[k])
			if err != nil {
				return err
			}
			buf.WriteString(rec)
		}

		// Write the extended header file.
		var name string
		var flag byte
		if isGlobal {
			name = realName
			if name == "" {
				name = "GlobalHead.0.0"
			}

    protected int writeBytesWireFormat ( byte[] dst, int dstIndex ) {
        int start = dstIndex;

        if ( this.getCommand() == SMB_COM_TRANSACTION && isResponse() == false ) {
            dstIndex += writeString(this.name, dst, dstIndex);
        }

        int end = dstIndex + this.pad1;

        if ( this.parameterCount > 0 ) {

		}

		setArgs, err := GetAllSets(list.setDriveCount, eps...)
		if err != nil {
			return layout, err
		}

		h := xxhash.New()
		for _, s := range setArgs {
			for _, d := range s {
				h.WriteString(d)
			}
		}

		layout.pools = append(layout.pools, poolDisksLayout{
			cmdline: fmt.Sprintf("hash:%x", h.Sum(nil)),
			layout:  setArgs,
		})
	}
	return
}

pkg net/http, type Transport struct, TLSNextProto map[string]func(string, *tls.Conn) RoundTripper
pkg net/http, var ErrSkipAltProtocol error
pkg net/http/httptest, method (*ResponseRecorder) WriteString(string) (int, error)
pkg net/http/httputil, type BufferPool interface { Get, Put }
pkg net/http/httputil, type BufferPool interface, Get() []uint8
pkg net/http/httputil, type BufferPool interface, Put([]uint8)

	if err != nil {
		return
	}
	err = en.WriteMapHeader(uint32(len(z.Tiers)))
	if err != nil {
		err = msgp.WrapError(err, "Tiers")
		return
	}
	for za0001, za0002 := range z.Tiers {
		err = en.WriteString(za0001)
		if err != nil {
			err = msgp.WrapError(err, "Tiers")
			return
		}
		// map header, size 3
		// write "ts"
		err = en.Append(0x83, 0xa2, 0x74, 0x73)
		if err != nil {
			return
		}

			continue
		}
		if err := adb("push", filepath.Join(goroot, de.Name()), path.Join(deviceGoroot, de.Name())); err != nil {
			return err
		}
	}

	if _, err := stat.WriteString(goVersion); err != nil {
		return err
	}
	return nil
}

func findGoroot() (string, error) {
	gorootOnce.Do(func() {
		// If runtime.GOROOT reports a non-empty path, assume that it is valid.

func (x xlFlags) String() string {
	var s strings.Builder
	if x&xlFlagFreeVersion != 0 {
		s.WriteString("FreeVersion")
	}
	if x&xlFlagUsesDataDir != 0 {
		if s.Len() > 0 {
			s.WriteByte(',')
		}
		s.WriteString("UsesDD")
	}
	if x&xlFlagInlineData != 0 {
		if s.Len() > 0 {
			s.WriteByte(',')
		}
		s.WriteString("Inline")
	}
	return s.String()
}

	1234567890,1234567890,1234567890,1234567890,1234567890,123"`
	// Create 10MiB content where each line contains 1024 characters.
	for i := 0; i < 10*1024; i++ {
		buffer.WriteString(fmt.Sprintf("[%05d] %s\n", i, line))
	}
	putContent := buffer.String()

	buf := bytes.NewReader([]byte(putContent))

	objectName := "test-big-object"
	// create HTTP request for object upload.

	if err != nil {
		return fmt.Errorf("unable to list IAM data: %w", err)
	}
	if took := time.Since(listStartTime); took > maxIAMLoadOpTime {
		var s strings.Builder
		for k, v := range listedConfigItems {
			s.WriteString(fmt.Sprintf("    %s: %d items\n", k, len(v)))
		}
		logger.Info("listAllIAMConfigItems took %.2fs with contents:\n%s", took.Seconds(), s.String())
	}

	// Loads things in the same order as `LoadIAMCache()`