export declare class HeadingSectionContoller {
    private __doc;
    constructor(doc: Document);
    open(id: string): void;
    toggle(id: string): void;
    close(id: string): void;
    destroy(): void;
    private _findSections;
    private _onDocClick;
    private _findHeading;
    private _matchHeading;
    private _toogleSection;
}