import { Signal } from '@lumino/signaling';
import { NotebookPanel } from '@jupyterlab/notebook';
import { IFontFaceOptions } from '.';
import * as SCHEMA from './schema';
export declare class Stylist {
    fonts: Map<string, IFontFaceOptions>;
    private _globalStyles;
    private _notebookStyles;
    private _jss;
    private _fontCache;
    private _cacheUpdated;
    constructor();
    get cacheUpdated(): Signal<this, void>;
    registerNotebook(notebook: NotebookPanel, register: boolean): void;
    private _onDisposed;
    get stylesheets(): HTMLStyleElement[];
    notebooks(): NotebookPanel[];
    stylesheet(meta: SCHEMA.ISettings, notebook?: NotebookPanel, clear?: boolean): void;
    private _nbMetaToStyle;
    private _settingsToStyle;
    dispose(): void;
    hack(show?: boolean): void;
}