How to use 'raspberry pi golang' in Go

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func main() {
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	display, err := lcdrgbbacklight.Open(
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		&i2c.Devfs{Dev: "/dev/i2c-1"},
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	)
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	if err != nil {
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		panic(err)
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	}
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	defer display.Close()
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	display.Write("Hello World!")
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	display.SetRGB(0, 255, 0)
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	time.Sleep(5 * time.Second)
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	display.Clear()
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	display.Home()
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	display.SetRGB(255, 124, 0)
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	display.SetCustomChar(0, lcdrgbbacklight.CustomLCDChars["smiley"])
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	display.Write("goodbye\nhave a nice day " + string(byte(0)))
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	ticker := time.NewTicker(time.Millisecond * 200)
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	go func() {
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		for _ = range ticker.C {
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			display.Scroll(false)
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		}
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	}()
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	time.Sleep(4 * time.Second)
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	ticker.Stop()
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}