new_contents: from threading import Thread, Lock
  
  list_lock = Lock()
  
  def run_in_thread(app):
    def wrapper(fn):
      def run(*args, **kwargs):
        app.logger.info('Starting thread: {}'.format(fn.__name__))
        t = Thread(target=fn,
                   args=args,
                   kwargs=kwargs)
        t.start()
  
        return t
  
      return run
  
    return wrapper
  
subject: Add a thread helper module