import { CommonsCache } from './commons-cache.mjs';
import { CommonsFixedDate } from './commons-fixed-date.mjs';
import { CommonsFixedDuration } from './commons-fixed-duration.mjs';
export type TCommonsCursorWalk<D> = {
    block: D[];
    index: number;
    remaining: number;
};
export declare class CommonsCursor<D, T extends {
    items: D[];
}, CursorIdT, CacheIdT> {
    private cache;
    private generateRandomId;
    private maxAge?;
    private cursors;
    constructor(cache: CommonsCache<T, CacheIdT>, generateRandomId: () => CursorIdT, maxAge?: CommonsFixedDuration | undefined);
    private get;
    generateForCache(cacheId: CacheIdT): CursorIdT | undefined;
    next(cursorId: CursorIdT, size: number): TCommonsCursorWalk<D>;
    skip(cursorId: CursorIdT, size: number): boolean;
    rewind(cursorId: CursorIdT, size: number): boolean;
    private delete;
    close(cursorId: CursorIdT): void;
    getExpiration(cursorId: CursorIdT): CommonsFixedDate | undefined;
    private checkForAndExpire;
}
export declare class CommonsUidCursor<D, T extends {
    items: D[];
}> extends CommonsCursor<D, T, string, string> {
    constructor(cache: CommonsCache<T, string>, maxAge?: CommonsFixedDuration);
}