code: func (c *Client) DeleteReadingById(id string) error {
  	conn := c.Pool.Get()
  	defer conn.Close()
  
  	err := deleteReading(conn, id)
  	if err != nil {
  		return err
  	}
  
  	return nil
  }
docs: // Delete a reading by ID
  // 404 - can't find the reading with the given id