text: """
  Defines a proxy model to enable a Django admin interface to trigger asynch
  tasks which regenerates course outline data.
  """
  from openedx.core.djangoapps.content.course_overviews.models import CourseOverview
  
  
  class CourseOutlineRegenerate(CourseOverview):
      """
      Proxy model for CourseOverview.
  
      Does *not* create/update/delete CourseOverview objects - only reads the objects.
      Uses the course IDs of the CourseOverview objects to determine which course
      outlines to regenerate.
      """
      class Meta:
          proxy = True
  
      def __str__(self):
          """Represent ourselves with the course key."""
          return str(self.id)
  
      @classmethod
      def get_course_outline_ids(cls):
          """
          Returns all the CourseOverview object ids.
          """
          return cls.objects.values_list('id', flat=True)
  