if z.IfModifiedSince == nil {
		o = msgp.AppendNil(o)
	} else {
		o = msgp.AppendTime(o, *z.IfModifiedSince)
	}
	// string "IfUnModifiedSince"
	o = append(o, 0xb1, 0x49, 0x66, 0x55, 0x6e, 0x4d, 0x6f, 0x64, 0x69, 0x66, 0x69, 0x65, 0x64, 0x53, 0x69, 0x6e, 0x63, 0x65)
	if z.IfUnModifiedSince == nil {
		o = msgp.AppendNil(o)
	} else {
		o = msgp.AppendTime(o, *z.IfUnModifiedSince)
	}

	o = append(o, 0xa2, 0x6c, 0x74)
	if z.XferRateLrg == nil {
		o = msgp.AppendNil(o)
	} else {
		o, err = z.XferRateLrg.MarshalMsg(o)
		if err != nil {
			err = msgp.WrapError(err, "XferRateLrg")
			return
		}
	}
	// string "st"
	o = append(o, 0xa2, 0x73, 0x74)
	if z.XferRateSml == nil {
		o = msgp.AppendNil(o)
	} else {
		o, err = z.XferRateSml.MarshalMsg(o)
		if err != nil {

	// string "rss"
	o = append(o, 0xa3, 0x72, 0x73, 0x73)
	o = msgp.AppendArrayHeader(o, uint32(len(z.PoolStats)))
	for za0001 := range z.PoolStats {
		if z.PoolStats[za0001] == nil {
			o = msgp.AppendNil(o)
		} else {
			o, err = z.PoolStats[za0001].MarshalMsg(o)
			if err != nil {
				err = msgp.WrapError(err, "PoolStats", za0001)
				return
			}
		}
	}
	return
}

	p := newPrinter()
	p.doPrintln(a)
	s := string(p.buf)
	p.free()
	return s
}

// Appendln formats using the default formats for its operands, appends the result
// to the byte slice, and returns the updated slice. Spaces are always added
// between operands and a newline is appended.
func Appendln(b []byte, a ...any) []byte {
	p := newPrinter()
	p.doPrintln(a)
	b = append(b, p.buf...)
	p.free()

	// string "lt"
	o = append(o, 0xa2, 0x6c, 0x74)
	if z.XferRateLrg == nil {
		o = msgp.AppendNil(o)
	} else {
		o, err = z.XferRateLrg.MarshalMsg(o)
		if err != nil {
			err = msgp.WrapError(err, "XferRateLrg")
			return
		}
	}
	// string "st"
	o = append(o, 0xa2, 0x73, 0x74)
	if z.XferRateSml == nil {
		o = msgp.AppendNil(o)
	} else {
		o, err = z.XferRateSml.MarshalMsg(o)
		if err != nil {

	}
}

func TestAppendln(t *testing.T) {
	b := make([]byte, 100)
	b = b[:copy(b, hello)]
	got := Appendln(b, "world,", 23)
	if string(got) != appendResult+"\n" {
		t.Fatalf("Appendln returns %q not %q", got, appendResult+"\n")
	}
	if &b[0] != &got[0] {
		t.Fatalf("Appendln allocated a new slice")
	}

	// map header, size 2
	// string "nf"
	o = append(o, 0x82, 0xa2, 0x6e, 0x66)
	o = msgp.AppendBool(o, z.NotFound)
	// string "e"
	o = append(o, 0xa1, 0x65)
	if z.Err == nil {
		o = msgp.AppendNil(o)
	} else {
		o = msgp.AppendString(o, *z.Err)
	}
	return
}

// UnmarshalMsg implements msgp.Unmarshaler
func (z *pongMsg) UnmarshalMsg(bts []byte) (o []byte, err error) {
	var field []byte

	o = msgp.AppendDuration(o, z.OlderThan)
	// string "CreatedBefore"
	o = append(o, 0xad, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x64, 0x42, 0x65, 0x66, 0x6f, 0x72, 0x65)
	if z.CreatedBefore == nil {
		o = msgp.AppendNil(o)
	} else {
		o = msgp.AppendTime(o, *z.CreatedBefore)
	}
	// string "Tags"
	o = append(o, 0xa4, 0x54, 0x61, 0x67, 0x73)
	o = msgp.AppendArrayHeader(o, uint32(len(z.Tags)))
	for za0001 := range z.Tags {

// driver applying analyzers to standard packages because "go vet" does
// not do so with gccgo, and nor do some other build systems.
var isPrint = stringSet{
	"fmt.Appendf":  true,
	"fmt.Append":   true,
	"fmt.Appendln": true,
	"fmt.Errorf":   true,
	"fmt.Fprint":   true,
	"fmt.Fprintf":  true,
	"fmt.Fprintln": true,
	"fmt.Print":    true,
	"fmt.Printf":   true,
	"fmt.Println":  true,
	"fmt.Sprint":   true,

		return
	}
	if z.Data == nil { // allownil: if nil
		o = msgp.AppendNil(o)
	} else {
		o = msgp.AppendBytes(o, z.Data)
	}
	o = msgp.AppendInt(o, z.NumVersions)
	o = msgp.AppendTime(o, z.SuccessorModTime)
	o = msgp.AppendBool(o, z.Fresh)
	o = msgp.AppendInt(o, z.Idx)
	if z.Checksum == nil { // allownil: if nil
		o = msgp.AppendNil(o)
	} else {
		o = msgp.AppendBytes(o, z.Checksum)
	}