code: def createHiddenFolder(self) -> 'File':
          
  
          if not self._autoDelete:
              raise Exception("Hidden folders can only be created within"
                              " an autoDelete directory")
          return tempfile.mkdtemp(dir=self._path, prefix=".")
docs: Create Hidden Folder
  
          Create a hidden folder.  Raise exception if auto delete isn't True.
  
          @return: Created folder.