// expect an ETag in double quotes. Therefore, we set the
	// ETag directly as map entry instead of using http.Header.Set
	h["ETag"] = []string{`"` + etag.String() + `"`}
}

// Get extracts and parses an ETag from the given HTTP headers.
// It returns an error when the HTTP headers do not contain
// an ETag entry or when the ETag is malformed.
//
// Get only accepts AWS S3 compatible ETags - i.e. no