'Return the set of discussions that is explicitly cohorted.  It may be
the empty set.  Note that all inline discussions are automatically
cohorted based on the course\'s is_cohorted setting.
Note: No longer used. See openedx.core.djangoapps.course_groups.models.CourseCohortSettings.'

@property
def cohorted_discussions(self):

    config = self.cohort_config
    if (config is None):
        return set()
    return set(config.get('cohorted_discussions', []))
