You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: reinflate.go
    path of file: ./repos/fq/format/tls/rezlib
    
    the code of the file until where you have to start completion: // Package rezlib wraps a zlib reader and makes it possible to read
// until the last current input flush boundary by reading until EOF.
//
// Inspiration from https://github.com/golang/go/issues/4887
    
func (r *Reader) Read(b []byte) (int, error) {
	if r.hadUnexpectedEOF {
		r.hadUnexpectedEOF = false
		// inject zlib header again
		mr := io.MultiReader(
			bytes.NewReader(r.zlibHeader[:]),
			r.r,
		)
		if err := r.res.Reset(mr, r.currentDict.Bytes()); err != nil {
			panic(fmt.Sprintf("zlib reader could not reset %s", err))
		}
	}

	n, err := r.fr.Read(b)

	r.currentDict.Write(b[:n])
	l := r.currentDict.Len()
	if l > maxDictSize {
		r.currentDict.Next(l - maxDictSize)
	}

	// TODO: currently we assume ErrUnexpectedEOF means we have read
	// until a flush boundary. To get read of the error reset with
	// current dictionary
	// some better way?
	if errors.Is(err, io.ErrUnexpectedEOF) {
		r.hadUnexpectedEOF = true
		err = io.EOF
	}

	return n, err
}