func (s1 Set[T]) Equal(s2 Set[T]) bool {
	return len(s1) == len(s2) && s1.IsSuperset(s2)
}

type sortableSliceOfGeneric[T cmp.Ordered] []T

func (g sortableSliceOfGeneric[T]) Len() int           { return len(g) }
func (g sortableSliceOfGeneric[T]) Less(i, j int) bool { return less[T](g[i], g[j]) }
func (g sortableSliceOfGeneric[T]) Swap(i, j int)      { g[i], g[j] = g[j], g[i] }

// List returns the contents as a sorted T slice.
//