code: func (c *Client) DeleteDeadJob(diedAt int64, jobID string) error {
  	ok, _, err := c.deleteZsetJob(redisKeyDead(c.namespace), diedAt, jobID)
  	if err != nil {
  		return err
  	}
  	if !ok {
  		return ErrNotDeleted
  	}
  	return nil
  }
docs: // DeleteDeadJob deletes a dead job from Redis.