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: gs_test.go
    path of file: ./repos/restic/internal/backend/gs
    
    the code of the file until where you have to start completion: package gs_test

import (
	"fmt"
	"os"
	"testing"
	"time"

	"github.com/restic/restic/internal/backend/gs"
	"github.com/restic/restic/internal/backend/test"
	rtest "github.com/restic/restic/internal/test"
)

func newGSTestSuite() *test.Suite[gs.Config] {
	return &test.Suite[gs.Config]{
		// do not use excessive data
		MinimalData: true,

		// NewConfig returns a config for a
    
func newGSTestSuite() *test.Suite[gs.Config] {
	return &test.Suite[gs.Config]{
		// do not use excessive data
		MinimalData: true,

		// NewConfig returns a config for a new temporary backend that will be used in tests.
		NewConfig: func() (*gs.Config, error) {
			cfg, err := gs.ParseConfig(os.Getenv("RESTIC_TEST_GS_REPOSITORY"))
			if err != nil {
				return nil, err
			}

			cfg.ProjectID = os.Getenv("RESTIC_TEST_GS_PROJECT_ID")
			cfg.Prefix = fmt.Sprintf("test-%d", time.Now().UnixNano())
			return cfg, nil
		},

		Factory: gs.NewFactory(),
	}
}