import { ReactiveController, ReactiveElement } from 'lit';
/**
 * Adds selected support for interactive custom elements including CSS State psuedo-selector :state(selected) and aria-selected.
 * https://developer.mozilla.org/en-US/docs/Web/API/ElementInternals/states
 * https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Attributes/aria-selected
 */
export declare function stateSelected<T extends Selected>(): ClassDecorator;
export type Selected = ReactiveElement & {
    selected: boolean;
    readOnly?: boolean;
    _internals?: ElementInternals;
};
export declare class StateSelectedController<T extends Selected> implements ReactiveController {
    private host;
    constructor(host: T);
    hostConnected(): void;
    hostUpdated(): void;
}