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: config_parser.go
    path of file: ./repos/dae/pkg/config_parser
    
    the code of the file until where you have to start completion: /*
 * SPDX-License-Identifier: AGPL-3.0-only
 * Copyright (c) 2022-2024, daeuniverse Organization <dae@v2raya.org>
 */

package config_parser

import (
	"fmt"
	"github.com/antlr/antlr4/runtime/Go/antlr/v4"
	"github.com/daeuniverse/dae-config-dist/go/dae_config"
)

func Parse(in string) (sections []*Section, err error) {
	errorListe
    
func Parse(in string) (sections []*Section, err error) {
	errorListener := NewConsoleErrorListener()
	lexer := dae_config.Newdae_configLexer(antlr.NewInputStream(in))
	lexer.RemoveErrorListeners()
	lexer.AddErrorListener(errorListener)
	input := antlr.NewCommonTokenStream(lexer, 0)

	parser := dae_config.Newdae_configParser(input)
	parser.RemoveErrorListeners()
	parser.AddErrorListener(errorListener)
	parser.BuildParseTrees = true
	tree := parser.Start()

	walker := NewWalker(parser)
	antlr.ParseTreeWalkerDefault.Walk(walker, tree)
	if errorListener.ErrorBuilder.Len() != 0 {
		return nil, fmt.Errorf("%v", errorListener.ErrorBuilder.String())
	}

	return walker.Sections, nil
}