docs: def chord_task(*args, **kwargs):
      u"""
      Override of the default task decorator to specify use of this backend.
      """
      given_backend = kwargs.get(u'backend', None)
      if not isinstance(given_backend, ChordableDjangoBackend):
          kwargs[u'backend'] = ChordableDjangoBackend(kwargs.get('app', current_app))
      return task(*args, **kwargs)