mapx

type Map[K comparable, V any] interface {
	Exists(K) bool
	Load(K) (V, bool)
	LoadEq(K, func(any, any) bool) (V, bool)
	LoadEqs(K, func(any, any) bool) []V
	BatchLoad(...K) []Result[V]
	Store(K, V)
	BatchStore([]K, []V)
	LoadOrStore(K, V) (actual V, loaded bool)
	LoadAndDelete(K) (value V, loaded bool)
	Delete(K)
	BatchDelete(...K)
	Swap(K, V) (previous V, loaded bool)
	CompareAndSwap(key K, old, new V) (swapped bool)
	CompareAndDelete(key K, old V) (deleted bool)
	Range(func(key K, value V) (shouldContinue bool))
	Clear()
}

type Result[V any] struct {
	V      V
	Loaded bool
}

type U[K comparable, V any] interface {
	xmap[K, V] | *sync.Map
}