col

type Action[E any] func(e E)

type ArrayList[E any] struct {
	// contains filtered or unexported fields
}

type Collector[E any] func(x E, z E) []E

type Iterator[E any] interface {
	First()
	Next()
	IsDone() bool
	CurrentItem() E
	ForEach(action Action[E])
}

type List[E any] interface {
	Add(e ...E) List[E]
	AddAll(col List[E]) List[E]
	Clear()
	Contains(e ...E) bool
	DeepEquals(col List[E]) bool
	Equals(col List[E]) bool
	Filter(pred Predicate[E]) List[E]
	ForEach(action Action[E])
	GetHash() string
	IsEmpty() bool
	Iterator() Iterator[E]
	Collect() []E
	Remove(e ...E)
	RemoveIf(pred Predicate[E])
}

type ListIterator[E any] struct {
	// contains filtered or unexported fields
}

type MapperFunc[S, T any] func(h S) T

type MultiAction[E any] func(x E, z E)

type MultiArrayList[S, T any] struct {
	// contains filtered or unexported fields
}

type MultiList[S, T any] interface {
	Add(e ...S) MultiList[S, T]
	AddAll(lst List[S]) MultiList[S, T]
	Clear()
	Collect() []S
	Map(mapperFunc MapperFunc[S, T]) List[T]
}

type Predicate[E any] func(e E) bool

type Producer[E any] func(e E) E