o = msgp.AppendMapHeader(o, zb0001Len)
	if zb0001Len == 0 {
		return
	}
	// string "ID"
	o = append(o, 0xa2, 0x49, 0x44)
	o = msgp.AppendBytes(o, (z.VersionID)[:])
	// string "DDir"
	o = append(o, 0xa4, 0x44, 0x44, 0x69, 0x72)
	o = msgp.AppendBytes(o, (z.DataDir)[:])
	// string "EcAlgo"
	o = append(o, 0xa6, 0x45, 0x63, 0x41, 0x6c, 0x67, 0x6f)
	o = msgp.AppendUint8(o, uint8(z.ErasureAlgorithm))

	// string "Algorithm"
	o = append(o, 0xa9, 0x41, 0x6c, 0x67, 0x6f, 0x72, 0x69, 0x74, 0x68, 0x6d)
	o = msgp.AppendUint(o, uint(z.Algorithm))
	// string "Hash"
	o = append(o, 0xa4, 0x48, 0x61, 0x73, 0x68)
	o = msgp.AppendBytes(o, z.Hash)
	return
}

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

		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)
	}
	o = msgp.AppendBool(o, z.Versioned)
	return

		var err error

		// Add header
		tmp, err = ver.header.MarshalMsg(tmp[:0])
		if err != nil {
			return nil, err
		}
		dst = msgp.AppendBytes(dst, tmp)

		// Add full meta
		dst = msgp.AppendBytes(dst, ver.meta)
	}

	// Update size...
	binary.BigEndian.PutUint32(dst[dataOffset-4:dataOffset], uint32(len(dst)-dataOffset))