type Rules[T any] interface {
	Hash(T) int
	Equivalent(T, T) bool
	SameRules(Rules[T]) bool
}

type testRules struct{}

func newTestRules() Rules[int] {
	return testRules{}
}

func (r testRules) Hash(val int) int {
	return val % 16
}

func (r testRules) Equivalent(val1 int, val2 int) bool {
	return val1 == val2
}

func (r testRules) SameRules(other Rules[int]) bool {
	_, ok := other.(testRules)
	return ok