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: json_report.go
    path of file: ./repos/ginkgo/reporters
    
    the code of the file until where you have to start completion: package reporters

import (
	"encoding/json"
	"fmt"
	"os"
	"path"

	"github.com/onsi/ginkgo/v2/types"
)

// GenerateJSONReport produces a JSON-formatted report at the passed in destination
func GenerateJSONReport(report types.Report, destination string) error {
	if err := os.MkdirAll(path.Dir(destination), 0770); err != nil {
		return err
	}
	f, err := os.Create(destination)
	if err != nil {
		return err
	}
	defer f.Close()
	enc := json.NewEncoder(f)
	enc.SetIndent("", "  ")
	err = enc.Encode([]types.Report{
		report,
	})
	if err 
    
func MergeAndCleanupJSONReports(sources []string, destination string) ([]string, error) {
	messages := []string{}
	allReports := []types.Report{}
	for _, source := range sources {
		reports := []types.Report{}
		data, err := os.ReadFile(source)
		if err != nil {
			messages = append(messages, fmt.Sprintf("Could not open %s:\n%s", source, err.Error()))
			continue
		}
		err = json.Unmarshal(data, &reports)
		if err != nil {
			messages = append(messages, fmt.Sprintf("Could not decode %s:\n%s", source, err.Error()))
			continue
		}
		os.Remove(source)
		allReports = append(allReports, reports...)
	}

	if err := os.MkdirAll(path.Dir(destination), 0770); err != nil {
		return messages, err
	}
	f, err := os.Create(destination)
	if err != nil {
		return messages, err
	}
	defer f.Close()
	enc := json.NewEncoder(f)
	enc.SetIndent("", "  ")
	err = enc.Encode(allReports)
	if err != nil {
		return messages, err
	}
	return messages, nil
}