drivers/google/google.go
func (d *Driver) Restart() error {
	if err := d.Stop(); err != nil {
		return err
	}

	return d.Start()
}
func (d *Driver) Restart() error {
	if err := d.Stop(); err != nil {
		return err
	}

	return d.Start()
}
// Restart restarts a machine which is known to be running.