code: def enqueue(self, klass, *args):
          
          queue = getattr(klass,'queue', None)
          if queue:
              class_name = '%s.%s' % (klass.__module__, klass.__name__)
              self.enqueue_from_string(class_name, queue, *args)
          else:
              logger.warning("unable to enqueue job with class %s" % str(klass))
docs: Enqueue a job into a specific queue. Make sure the class you are
          passing has **queue** attribute and a **perform** method on it.