func Add(s string, ancestors int) string {
	return fmt.Sprintf("%s~%d", s, ancestors)
}
func Add(s string, ancestors int) string {
	return fmt.Sprintf("%s~%d", s, ancestors)
}
func Add ( s string , ancestors int ) string { return fmt . Sprintf ( " " , s , ancestors ) }
// Add adds an ancestry reference to the given string.
Add adds an ancestry reference to the given string .