import { TocItem } from '../../models';
declare type NormalizeUrl = (path: string, hash: string | undefined) => string | null | undefined;
export declare class TocItemRegistry {
    private itemById;
    private parentById;
    private itemIdByUrl;
    private normalizeUrl;
    constructor(items: TocItem[], normalizeUrl: NormalizeUrl);
    getIdByUrl(url: string): string | undefined;
    getItemById(id: string): TocItem | undefined;
    getParentId(id: string): string;
    getParentIds(id: string): string[];
    getChildIds(id: string): string[];
    private consumeItems;
}
export {};