stmutil

type KeyConstraint interface {
	comparable
}

type Lenner interface {
	Len() int
}

type Map[K KeyConstraint, V any] struct {
	*immutable.Map[K, V]
}

type Mappish[K, V any] interface {
	Set(K, V) Mappish[K, V]
	Delete(key K) Mappish[K, V]
	Get(key K) (V, bool)
	Range(func(K, V) bool)
	Len() int
	iter.Iterable
}

type Settish[K KeyConstraint] interface {
	Add(K) Settish[K]
	Delete(K) Settish[K]
	Contains(K) bool
	Range(func(K) bool)
	iter.Iterable
	Len() int
}

type SortedMap[K KeyConstraint, V any] struct {
	*immutable.SortedMap[K, V]
}