code: func (c *Client) DeleteIntervalById(id string) (err error) {
  	check, err := c.IntervalById(id)
  	if err != nil {
  		if err == db.ErrNotFound {
  			return nil
  		}
  		return
  	}
  
  	interval := models.NewInterval(check)
  	conn := c.Pool.Get()
  	defer conn.Close()
  
  	_ = conn.Send("MULTI")
  	deleteObject(interval, id, conn)
  
  	_, err = conn.Do("EXEC")
  
  	return err
  }
docs: // Remove schedule interval by ID