code: func (c *Client) KeepAlive() {
  	for _ = range time.Tick(60 * time.Second) {
  		c.connection.KeepAlive()
  	}
  }
docs: // KeepAlive is meant to run as a goroutine. It sends a single whitespace
  // character to HipChat every 60 seconds. This keeps the connection from
  // idling after 150 seconds.