// ErrInvalid or ErrNotExist.
func (ffs *fakeFsWithFakeFds) Open(name string) (fs.File, error) {
	f, err := ffs.ReadDirFS.Open(name)
	if err != nil {
		return nil, err
	}
	return wrapFile(f), nil
}

func wrapFile(f fs.File) fs.File {
	return &fakeFileFakeFds{File: f, fd: 0}
}

type fakeIptablesDeps struct {
	AddRouteErr           error
	AddInpodMarkIPRuleCnt atomic.Int32

				return err
			}
			for _, line := range usage.Detail {
				if err := wrapLine(w, line, 60, "\t"); err != nil {
					return err
				}
			}
			if _, err := io.WriteString(w, "\n"); err != nil {
				return err
			}
		}
	}

	return nil
}

func wrapLine(w io.Writer, line string, cols int, indent string) error {
	line = strings.TrimLeft(line, " ")