import type { MarkerId } from '../../marker';
import type { NamedResourceData } from '../../storage';
import { Summary } from './summary';
export type TopicId = string;
export type RefString = string;
export type TopicAttributes = {
    ref?: RefString;
    labels?: string[];
    note?: string;
    markers?: MarkerId[];
};
export declare class Topic {
    readonly id: TopicId;
    readonly ref: RefString | null;
    readonly title: string;
    private _children;
    private _summaries;
    private _markers;
    private _labels;
    private _image;
    private _note;
    constructor(title: string, attributes?: TopicAttributes, children?: Topic[]);
    get children(): ReadonlyArray<Topic>;
    get summaries(): ReadonlyArray<Summary>;
    get labels(): ReadonlyArray<string>;
    get note(): Readonly<string | null>;
    set note(newNote: string | null);
    get markers(): ReadonlyArray<MarkerId>;
    get image(): NamedResourceData | null;
    query(identifier: TopicId | RefString): Topic | null;
    addTopic(title: string, attributes?: TopicAttributes): Topic;
    addLabel(label: string): void;
    addImage(imageData: NamedResourceData): void;
    addMarker(markerId: MarkerId): void;
    addSummary(title: string, from: TopicId | number, to: TopicId | number, summaryTopic: Topic): Summary | null;
}