declare type List = ReadonlyArray; declare const List: { set: (list: ReadonlyArray, where: number | Partial, value: T | ((oldValue: T) => T)) => ReadonlyArray; get: (list: ReadonlyArray, where: Partial) => T | undefined; reverse: (list: ReadonlyArray) => ReadonlyArray; contains: (list: ReadonlyArray, item: T) => boolean; }; export default List;