if err != nil {
		err = msgp.WrapError(err, "ActualSize")
		return
	}
	// write "ModTime"
	err = en.Append(0xa7, 0x4d, 0x6f, 0x64, 0x54, 0x69, 0x6d, 0x65)
	if err != nil {
		return
	}
	err = en.WriteTime(z.ModTime)
	if err != nil {
		err = msgp.WrapError(err, "ModTime")
		return
	}
	if (zb0001Mask & 0x20) == 0 { // if not omitted
		// write "index"
		err = en.Append(0xa5, 0x69, 0x6e, 0x64, 0x65, 0x78)

	if err != nil {
		return
	}
	if z.IfModifiedSince == nil {
		err = en.WriteNil()
		if err != nil {
			return
		}
	} else {
		err = en.WriteTime(*z.IfModifiedSince)
		if err != nil {
			err = msgp.WrapError(err, "IfModifiedSince")
			return
		}
	}
	// write "IfUnModifiedSince"

	err = en.Append(0xa2, 0x6c, 0x75)
	if err != nil {
		return
	}
	err = en.WriteTime(z.LastUpdate)
	if err != nil {
		err = msgp.WrapError(err, "LastUpdate")
		return
	}
	// write "dec"
	err = en.Append(0xa3, 0x64, 0x65, 0x63)
	if err != nil {
		return
	}
	if z.Decommission == nil {
		err = en.WriteNil()
		if err != nil {
			return
		}
	} else {
		err = z.Decommission.EncodeMsg(en)

	rfw := &readFromWriter{}
	w := NewWriterSize(rfw, bufsize)

	const writeSize = 8
	if n, err := w.Write(input[:writeSize]); n != writeSize || err != nil {
		t.Errorf("w.Write(%v bytes) = %v, %v; want %v, nil", writeSize, n, err, writeSize)
	}
	n, err := w.ReadFrom(bytes.NewReader(input[writeSize:]))
	if wantn := len(input[writeSize:]); int(n) != wantn || err != nil {

	if err != nil {
		return
	}
	err = en.WriteTime(z.CreatedAfter)
	if err != nil {
		err = msgp.WrapError(err, "CreatedAfter")
		return
	}
	// write "CreatedBefore"
	err = en.Append(0xad, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x64, 0x42, 0x65, 0x66, 0x6f, 0x72, 0x65)
	if err != nil {
		return
	}
	err = en.WriteTime(z.CreatedBefore)
	if err != nil {