code: func (d Datastore) Type(ctx context.Context) (types.HostFileSystemVolumeFileSystemType, error) {
  	var mds mo.Datastore
  
  	if err := d.Properties(ctx, d.Reference(), []string{"summary.type"}, &mds); err != nil {
  		return types.HostFileSystemVolumeFileSystemType(""), err
  	}
  	return types.HostFileSystemVolumeFileSystemType(mds.Summary.Type), nil
  }
docs: // Type returns the type of file system volume.