code: def requeue_job(self, job, queue, priority, delayed_for=None):
          
          job.requeue(queue_name=queue._cached_name,
                      priority=priority,
                      delayed_for=delayed_for,
                      queue_model=self.queue_model)
  
          if hasattr(job, 'on_requeued'):
              job.on_requeued(queue)
  
          self.log(self.job_requeue_message(job, queue))
docs: Requeue a job in a queue with the given priority, possibly delayed