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: importlayer.go
    path of file: ./repos/podman/vendor/github.com/Microsoft/hcsshim/internal/wclayer
    
    the code of the file until where you have to start completion: //go:build windows

package wclayer

import (
	"context"
	"os"
	"path/filepath"
	"strings"

	"github.com/Microsoft/go-winio"
	"github.com/Microsoft/hcsshim/internal/hcserror"
	"github.com/Microsoft/hcsshim/internal/oc"
	"github.com/Microsoft/hcsshim/internal/safefile"
	"go.opencensus.io/trace"
)

// ImportLayer will take the contents of the folder at importFolderPath and import
// that into a layer with the id layerId.  Note that in order to correctly populate
// the layer and interperet the transport format, all parent layers must already
// be present on the system at the paths provided in parentLayerPaths.
func ImportLayer(ctx context.Context, path string, import
    
func ImportLayer(ctx context.Context, path string, importFolderPath string, parentLayerPaths []string) (err error) {
	title := "hcsshim::ImportLayer"
	ctx, span := oc.StartSpan(ctx, title)
	defer span.End()
	defer func() { oc.SetSpanStatus(span, err) }()
	span.AddAttributes(
		trace.StringAttribute("path", path),
		trace.StringAttribute("importFolderPath", importFolderPath),
		trace.StringAttribute("parentLayerPaths", strings.Join(parentLayerPaths, ", ")))

	// Generate layer descriptors
	layers, err := layerPathsToDescriptors(ctx, parentLayerPaths)
	if err != nil {
		return err
	}

	err = importLayer(&stdDriverInfo, path, importFolderPath, layers)
	if err != nil {
		return hcserror.New(err, title, "")
	}
	return nil
}