code: func Properties(host *object.HostSystem) (*mo.HostSystem, error) {
  	ctx, cancel := context.WithTimeout(context.Background(), provider.DefaultAPITimeout)
  	defer cancel()
  	var props mo.HostSystem
  	if err := host.Properties(ctx, host.Reference(), nil, &props); err != nil {
  		return nil, err
  	}
  	return &props, nil
  }
docs: // Properties is a convenience method that wraps fetching the HostSystem MO
  // from its higher-level object.