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/widgets/textedit
    
    the code of the file until where you have to start completion: //source: https://doc.qt.io/qt-5/qtwidgets-richtext-textedit-example.html

package main

import (
	"os"

	"github.com/therecipe/qt/core"
	"github.com/therecipe/qt/widgets"
)

var qApp *widgets.QApplication

func main() {
	qApp = widgets.NewQApplication(len(os.Args), os.Args)
	core.QCoreApplication_SetOrganizationName("QtProject")
	core.QCoreApplication_SetApplicationName("Rich Text")
	core.QCoreApplication_SetApplicationVersion("1.0.0")

	var parser = core.NewQCommandLineParser()
	parser.SetApplicationDescription(core.QCoreApplication_ApplicationName())
	parser.AddHelpOption()
	parser.AddVersionOption()
	parser.AddPositionalArgument("file", "The file to open.", "")
	parser.Process2(qApp)

	var mw = initTextEdit()

	var availableGeometry = widgets.QApplication_Desktop().AvailableGeometry2(mw)
	//mw.Resize2(availableGeometry.Width()/2, (availableGeometry.Height()*2)/3)
	mw.Resize2(600, 450)
	mw.Move2((availableGeome
    
func main() {
	qApp = widgets.NewQApplication(len(os.Args), os.Args)
	core.QCoreApplication_SetOrganizationName("QtProject")
	core.QCoreApplication_SetApplicationName("Rich Text")
	core.QCoreApplication_SetApplicationVersion("1.0.0")

	var parser = core.NewQCommandLineParser()
	parser.SetApplicationDescription(core.QCoreApplication_ApplicationName())
	parser.AddHelpOption()
	parser.AddVersionOption()
	parser.AddPositionalArgument("file", "The file to open.", "")
	parser.Process2(qApp)

	var mw = initTextEdit()

	var availableGeometry = widgets.QApplication_Desktop().AvailableGeometry2(mw)
	//mw.Resize2(availableGeometry.Width()/2, (availableGeometry.Height()*2)/3)
	mw.Resize2(600, 450)
	mw.Move2((availableGeometry.Width()-mw.Width())/2,
		(availableGeometry.Height()-mw.Height())/2)

	var (
		args     = parser.PositionalArguments()
		fileName string
	)
	if len(args) >= 1 && len(args[0]) >= 1 {
		fileName = args[0]
	} else {
		fileName = ":/qml/example.html"
	}

	if !mw.load(fileName) {
		mw.fileNew()
	}

	mw.Show()
	qApp.Exec()
}