text: import importlib
  import multiprocessing
  import tornado.options
  
  
  def load_default_scenes():
      for scene in tornado.options.options.default_scenes:
          module_name, class_name = scene.rsplit(".", 1)
          module = importlib.import_module(module_name)
          class_ = getattr(module, class_name)
          process = multiprocessing.Process(target=class_.start)
          process.start()