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: layerexists.go
    path of file: ./repos/docker-ce/components/engine/vendor/github.com/Microsoft/hcsshim/internal/wclayer
    
    the code of the file until where you have to start completion: package wclayer

import (
	"context"

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

// LayerExists will return true if a layer with the given id exists and is known
// to the system.
func LayerExists(ctx context.Context, path st
    
func LayerExists(ctx context.Context, path string) (_ bool, err error) {
	title := "hcsshim::LayerExists"
	ctx, span := trace.StartSpan(ctx, title) //nolint:ineffassign,staticcheck
	defer span.End()
	defer func() { oc.SetSpanStatus(span, err) }()
	span.AddAttributes(trace.StringAttribute("path", path))

	// Call the procedure itself.
	var exists uint32
	err = layerExists(&stdDriverInfo, path, &exists)
	if err != nil {
		return false, hcserror.New(err, title+" - failed", "")
	}
	span.AddAttributes(trace.BoolAttribute("layer-exists", exists != 0))
	return exists != 0, nil
}