func fieldPrefix(fld []*ast.Field) string {
	prefix := ""
	for _, f := range fld {
		for _, n := range f.Names {
			// Ignore field names that don't have the prefix we're
			// looking for. It is common in C headers to have fields
			// named, say, _pad in an otherwise prefixed header.
			// If the struct has 3 fields tv_sec, tv_usec, _pad1, then we
			// still want to remove the tv_ prefix.

			}
		}
	}
	return nil
}

// RegisterDecompressor registers or overrides a custom decompressor for a
// specific method ID. If a decompressor for a given method is not found,
// [Reader] will default to looking up the decompressor at the package level.
func (r *Reader) RegisterDecompressor(method uint16, dcomp Decompressor) {
	if r.decompressors == nil {
		r.decompressors = make(map[uint16]Decompressor)
	}

	_, err = io.Copy(fw, r)
	return err
}

// RegisterCompressor registers or overrides a custom compressor for a specific
// method ID. If a compressor for a given method is not found, [Writer] will
// default to looking up the compressor at the package level.
func (w *Writer) RegisterCompressor(method uint16, comp Compressor) {
	if w.compressors == nil {
		w.compressors = make(map[uint16]Compressor)
	}
	w.compressors[method] = comp

	return nil, errors.New("failed to set up idevicedebugserverproxy")
}

// findDeviceAppPath returns the device path to the app with the
// given bundle ID. It parses the output of ideviceinstaller -l -o xml,
// looking for the bundle ID and the corresponding Path value.
func findDeviceAppPath(bundleID string) (string, error) {
	cmd := idevCmd(exec.Command("ideviceinstaller", "-l", "-o", "xml"))
	out, err := cmd.CombinedOutput()