export type Constructor<T> = new (...args: any[]) => T;
export interface IListCachePredicate<T> {
    (item: T): boolean;
}
export interface IListCacheItemUpdater<T> {
    (item: T): T;
}
export interface IListCache<T> {
    count(): number;
    clear(): void;
    hasItems(): boolean;
    getItems(): T[];
    getItem(predicate: IListCachePredicate<T>): T | undefined;
    addItems(items: T[]): void;
    updateItems(updater: IListCacheItemUpdater<T>): void;
    removeItems(predicate: IListCachePredicate<T>): void;
}
export declare class ListCache<T> implements IListCache<T> {
    private state;
    constructor();
    count(): number;
    clear(): void;
    hasItems(): boolean;
    getItems(): T[];
    getItem(predicate: IListCachePredicate<T>): T | undefined;
    addItems(items: T[]): void;
    updateItems(updater: IListCacheItemUpdater<T>): void;
    removeItems(predicate: IListCachePredicate<T>): void;
}