code: func (l *localFileSystem) MkDir(path string, mode int) error {
  	fileMode := os.FileMode(mode & int(os.ModePerm))
  	err := os.MkdirAll(path, fileMode)
  	if err != nil && !os.IsExist(err) {
  		return trace.ConvertSystemError(err)
  	}
  
  	return nil
  }
docs: // MkDir creates a directory