code: func (s Status) File(path string) *FileStatus {
  	if _, ok := (s)[path]; !ok {
  		s[path] = &FileStatus{Worktree: Untracked, Staging: Untracked}
  	}
  
  	return s[path]
  }
docs: // File returns the FileStatus for a given path, if the FileStatus doesn't
  // exists a new FileStatus is added to the map using the path as key.