code: func (ut *UploadTracker) populateSymlinks(symlinks []*Item) error {
  	for _, item := range symlinks {
  		l, err := ut.lOS.Readlink(item.Path)
  		if err != nil {
  			return fmt.Errorf("unable to resolve symlink for %q: %v", item.Path, err)
  		}
  		ut.isol.Files[item.RelPath] = isolated.SymLink(l)
  	}
  	return nil
  }
docs: // populateSymlinks adds an isolated.File to files for each provided symlink