def update_course_creator_group(caller, user, add):
 if add:
  auth.add_users(caller, CourseCreatorRole(), user)
 else:
  auth.remove_users(caller, CourseCreatorRole(), user)

def update_course_creator_group ( caller , user , add ) : if add : auth . add_users ( caller , CourseCreatorRole ( ) , user ) else : auth . remove_users ( caller , CourseCreatorRole ( ) , user )
method for adding and removing users from the creator group .