import { Option } from 'standard-data-structures';
declare type ListKey = string | number;
export declare class ListComponentState<S> {
    private baseInit;
    private readonly keys;
    private readonly hashMap;
    private constructor();
    static of<S>(baseInit: () => S): ListComponentState<S>;
    set(k: ListKey, value?: S): ListComponentState<S>;
    get(k: ListKey): Option<S>;
    fold<T>(s: T, fn: (current: S, k: ListKey, acc: T) => T): T;
    static fold<T, S>(L: ListComponentState<S>, T: T, fn: (current: S, k: ListKey, acc: T) => T): T;
    static toArray<S>(L: ListComponentState<S>): Array<[ListKey, S]>;
    has(k: ListKey): boolean;
    readonly asArray: Array<[ListKey, S]>;
}
export {};