func (pr *progressReader) Close() error {
	pr.closedMu.Lock()
	defer pr.closedMu.Unlock()
	if pr.closed {
		return nil
	}
	pr.closed = true
	if pr.closer != nil {
		pr.closer.Close()
	}
	return pr.rc.Close()
}

func (pr *progressReader) Stats() (bytesScanned, bytesProcessed int64) {
	if pr == nil {
		return 0, 0
	}
	return pr.scannedReader.BytesRead(), pr.processedReader.BytesRead()
}

	r.mutex.Lock()
	r.refs++
	r.mutex.Unlock()
}

// Close - this closer implements a special closer
// closes the underlying fd only when the refs
// reach zero.
func (r *RLockedFile) Close() (err error) {
	r.mutex.Lock()
	defer r.mutex.Unlock()

	if r.refs == 0 {
		return os.ErrInvalid
	}

	r.refs--
	if r.refs == 0 {
		err = r.File.Close()
	}

	return err
}

	h          hash.Hash
	shardSize  int64
	hashBytes  []byte
}

func (b *streamingBitrotReader) Close() error {
	if b.rc == nil {
		return nil
	}
	if closer, ok := b.rc.(io.Closer); ok {
		// drain the body for connection reuse at network layer.
		xhttp.DrainBody(io.NopCloser(b.rc))
		return closer.Close()
	}
	return nil
}

func (b *streamingBitrotReader) ReadAt(buf []byte, offset int64) (int, error) {

	}
	if errors.Is(err, io.EOF) {
		got := c.h.Sum(nil)
		if !bytes.Equal(got, c.want) {
			return n, ErrInvalidChecksum
		}
		return n, err
	}
	return n, err
}

// Close satisfies io.Closer
func (c Checker) Close() error {
	err := c.c.Close()
	if err == nil {
		got := c.h.Sum(nil)
		if !bytes.Equal(got, c.want) {
			return ErrInvalidChecksum
		}
	}
	return err

	}
	return newWholeBitrotReader(disk, bucket, filePath, algo, tillOffset, sum)
}

// Close all the readers.
func closeBitrotReaders(rs []io.ReaderAt) {
	for _, r := range rs {
		if r != nil {
			if br, ok := r.(io.Closer); ok {
				br.Close()
			}
		}
	}
}

// Close all the writers.
func closeBitrotWriters(ws []io.Writer) []error {
	errs := make([]error, len(ws))

	}
	_, err = writer.Write([]byte("aaaaaaaaaa"))
	if err != nil {
		t.Fatal(err)
	}
	_, err = writer.Write([]byte("aaaaa"))
	if err != nil {
		t.Fatal(err)
	}
	if bw, ok := writer.(io.Closer); ok {
		bw.Close()
	}

	reader := newBitrotReader(disk, nil, volume, filePath, 35, bitrotAlgo, bitrotWriterSum(writer), 10)
	b := make([]byte, 10)
	if _, err = reader.ReadAt(b, 0); err != nil {
		t.Fatal(err)
	}

type Reader struct {
	io.Closer
	r *parquetgo.FileReader
}

// NewParquetReader creates a Reader2 from a io.ReadSeekCloser.
func NewParquetReader(rsc io.ReadSeekCloser, _ *ReaderArgs) (r *Reader, err error) {
	fr, err := parquetgo.NewFileReader(rsc)
	if err != nil {
		return nil, errParquetParsingError(err)
	}

	return &Reader{Closer: rsc, r: fr}, nil
}

/**
 *
 */
@Named
@Singleton
@Deprecated
public class DefaultGraphConflictResolutionPolicy implements GraphConflictResolutionPolicy {
    /**
     * artifact, closer to the entry point, is selected
     */
    @Configuration(name = "closer-first", value = "true")
    private boolean closerFirst = true;

    /**
     * newer artifact is selected
     */
    @Configuration(name = "newer-first", value = "true")

import org.apache.maven.artifact.ArtifactScopeEnum;

/**
 * Default conflict resolver.Implements closer newer first policy by default, but could be configured via plexus
 *
 */
@Named
@Singleton
@Deprecated
public class DefaultGraphConflictResolver implements GraphConflictResolver {
    /**
     * artifact, closer to the entry point, is selected
     */
    @Inject
    protected GraphConflictResolutionPolicy policy;

	io.Reader
	// Response body should be logged
	LogBody bool

	// internal recording buffer
	buf bytes.Buffer
	// total bytes read including header size
	bytesRead int
}

// Close is a no operation closer
func (r *RequestRecorder) Close() error {
	// no-op
	return nil
}

// Read reads from the internal reader and counts/save the body in the memory
func (r *RequestRecorder) Read(p []byte) (n int, err error) {