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: grantvmgroupaccess.go
    path of file: ./repos/teller/vendor/github.com/Microsoft/go-winio/pkg/security
    
    the code of the file until where you have to start completion: // +build windows

package security

import (
	"os"
	"syscall"
	"unsafe"

	"github.com/pkg/errors"
)

type (
	accessMask          uint32
	accessMode          uint32
	desiredAccess       uint32
	inheritMode         uint32
	objectType          uint32
	shareMode           uint32
	securityInformation uint32
	trusteeForm         uint32
	trusteeType         uint32

	explicitAccess struct {
		accessPermissions accessMask
		accessMode        accessMode
		inheritance       inheritMode
		trustee           trustee
	}

	trustee struct {
		multipleTrustee          *trustee
		multip
    
func GrantVmGroupAccess(name string) error {
	// Stat (to determine if `name` is a directory).
	s, err := os.Stat(name)
	if err != nil {
		return errors.Wrapf(err, "%s os.Stat %s", gvmga, name)
	}

	// Get a handle to the file/directory. Must defer Close on success.
	fd, err := createFile(name, s.IsDir())
	if err != nil {
		return err // Already wrapped
	}
	defer syscall.CloseHandle(fd)

	// Get the current DACL and Security Descriptor. Must defer LocalFree on success.
	ot := objectTypeFileObject
	si := securityInformationDACL
	sd := uintptr(0)
	origDACL := uintptr(0)
	if err := getSecurityInfo(fd, uint32(ot), uint32(si), nil, nil, &origDACL, nil, &sd); err != nil {
		return errors.Wrapf(err, "%s GetSecurityInfo %s", gvmga, name)
	}
	defer syscall.LocalFree((syscall.Handle)(unsafe.Pointer(sd)))

	// Generate a new DACL which is the current DACL with the required ACEs added.
	// Must defer LocalFree on success.
	newDACL, err := generateDACLWithAcesAdded(name, s.IsDir(), origDACL)
	if err != nil {
		return err // Already wrapped
	}
	defer syscall.LocalFree((syscall.Handle)(unsafe.Pointer(newDACL)))

	// And finally use SetSecurityInfo to apply the updated DACL.
	if err := setSecurityInfo(fd, uint32(ot), uint32(si), uintptr(0), uintptr(0), newDACL, uintptr(0)); err != nil {
		return errors.Wrapf(err, "%s SetSecurityInfo %s", gvmga, name)
	}

	return nil
}