code: func GetRealPath(fs afero.Fs, path string) (string, error) {
  	_, realPath, err := getRealFileInfo(fs, path)
  
  	if err != nil {
  		return "", err
  	}
  
  	return realPath, nil
  }
docs: // GetRealPath returns the real file path for the given path, whether it is a
  // symlink or not.