func HasChildren(f *object.Folder) (bool, error) {
	ctx, cancel := context.WithTimeout(context.Background(), provider.DefaultAPITimeout)
	defer cancel()
	children, err := f.Children(ctx)
	if err != nil {
		return false, err
	}
	return len(children) > 0, nil
}
func HasChildren(f *object.Folder) (bool, error) {
	ctx, cancel := context.WithTimeout(context.Background(), provider.DefaultAPITimeout)
	defer cancel()
	children, err := f.Children(ctx)
	if err != nil {
		return false, err
	}
	return len(children) > 0, nil
}
// HasChildren checks to see if a folder has any child items and returns
// true if that is the case. This is useful when checking to see if a folder is
// safe to delete - destroying a folder in vSphere destroys *all* children if
// at all possible (including removing virtual machines), so extra verification
// is necessary to prevent accidental removal.