code: def by_works(self, kind=None, role_name=None):
          
          if not spectator_apps.is_enabled('events'):
              raise ImproperlyConfigured("To use the CreatorManager.by_works() method, 'spectator.events' must by in INSTALLED_APPS.")
  
          qs = self.get_queryset()
  
          filter_kwargs = {}
  
          if kind is not None:
              filter_kwargs['works__kind'] = kind
  
          if role_name is not None:
              filter_kwargs['work_roles__role_name'] = role_name
  
          if filter_kwargs:
              qs = qs.filter(**filter_kwargs)
  
          qs = qs.annotate(num_works=Count('works', distinct=True)) \
                  .order_by('-num_works', 'name_sort')
  
          return qs
docs: Get the Creators involved in the most Works.
  
          kind - If supplied, only Works with that `kind` value will be counted.
          role_name - If supplied, only Works on which the role is that will be counted.
  
          e.g. To get all 'movie' Works on which the Creators had the role 'Director':
  
              Creator.objects.by_works(kind='movie', role_name='Director')