import { IRenderer, IRenderable, ISpecification, IStackeable } from '../../api';
/**
 * Implementation of the 'overlays' markup element.
 * A HTML div element containing 'overlay' elements.
 * For CSS manipulations the following classes are added:
 *  lto-overlays: the container
 *
 * @see {@link IRenderable}
 * @see {@link IStackeable}
 */
export declare class Overlays implements IRenderable, IStackeable {
    private readonly spec;
    constructor(spec: ISpecification);
    /**
     * @inheritDoc
     */
    render(renderer: IRenderer, isNested: boolean): HTMLElement;
}