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)
	}

		if rn.Intn(8) == 0 && cap(b) > 0 {
			b = b[1:1:cap(b)]
		}

		// Append a random integer of varying width.
		n := int64(rn.Intn(1 << rn.Intn(30)))
		want = append(strconv.AppendInt(want, n, 10), ' ')
		b = append(strconv.AppendInt(b, n, 10), ' ')
		w.Write(b)
	}
	w.Flush()

	if !bytes.Equal(got.Bytes(), want) {
		t.Errorf("output mismatch:\ngot  %s\nwant %s", got.Bytes(), want)
	}
}

	o = append(o, 0xa9, 0x45, 0x72, 0x72, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x73)
	o = msgp.AppendMapHeader(o, uint32(len(z.ErrCounts)))
	for za0001, za0002 := range z.ErrCounts {
		o = msgp.AppendString(o, za0001)
		o = msgp.AppendInt(o, za0002)
	}
	return
}

// UnmarshalMsg implements msgp.Unmarshaler
func (z *RTimedMetrics) UnmarshalMsg(bts []byte) (o []byte, err error) {
	var field []byte
	_ = field
	var zb0001 uint32