return errMalformedXML(err)
	}

	parsedType := CompressionType(strings.ToUpper(s))
	if s == "" || parsedType == "NONE" {
		parsedType = noneType
	}

	switch parsedType {
	case noneType, gzipType, bzip2Type, snappyType, s2Type, zstdType, lz4Type:
	default:
		return errInvalidCompressionFormat(fmt.Errorf("invalid compression format '%v'", s))
	}

	*c = parsedType

	}
	scannedReader := newCountUpReader(rc)
	pr := progressReader{
		rc:            rc,
		scannedReader: scannedReader,
	}
	var r io.Reader

	switch compType {
	case noneType:
		r = scannedReader
	case gzipType:
		gzr, err := gzip.NewReader(scannedReader)
		if err != nil {
			if errors.Is(err, gzip.ErrHeader) || errors.Is(err, gzip.ErrChecksum) {

### Refactors

* 🔥 Remove unused NoneType. PR [#10774](https://github.com/tiangolo/fastapi/pull/10774) by [@tiangolo](https://github.com/tiangolo).

### Docs