import { ReactiveElement } from 'lit';
import { DisposalBin } from '../../events';
import { Logger } from '../../logger';
export declare class ElementDiscoveryController<HostElement extends ReactiveElement> {
    protected readonly _host: HostElement;
    protected readonly _eventType: keyof GlobalEventHandlersEventMap;
    protected readonly _logger: Logger;
    protected readonly _disconnectDisposal: DisposalBin;
    constructor(_host: HostElement, _eventType: keyof GlobalEventHandlersEventMap);
    protected _handleHostConnected(): void;
    protected _handleHostDisconnected(): void;
}