You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: main.go
    path of file: ./repos/qt/internal/examples/3rdparty/qzxing/demo/BarcodeEncoder
    
    the code of the file until where you have to start completion: //source: https://github.com/ftylitak/qzxing/tree/master/examples/BarcodeEncoder

package main

import (
	"os"

	"github.com/therecipe/qt/core"
	"github.com/therecipe/qt/gui"
	"github.com/therecipe/qt/qml"

	"github.com/t
    
func main() {

	// enable high dpi scaling
	// useful for devices with high pixel density displays
	// such as smartphones, retina displays, ...
	core.QCoreApplication_SetAttribute(core.Qt__AA_EnableHighDpiScaling, true)

	// needs to be called once before you can start using QML
	gui.NewQGuiApplication(len(os.Args), os.Args)

	// create the qml application engine
	engine := qml.NewQQmlApplicationEngine(nil)
	qzxing.RegisterQMLTypes()
	qzxing.RegisterQMLImageProvider(engine)

	// load the embedded qml file
	// created by either qtrcc or qtdeploy
	engine.Load(core.NewQUrl3("qrc:/main.qml", 0))
	// you can also load a local file like this instead:
	//engine.Load(core.QUrl_FromLocalFile("./qml/main.qml"))

	// start the main Qt event loop
	// and block until app.Exit() is called
	// or the window is closed by the user
	gui.QGuiApplication_Exec()
}