import { DetachHandler } from './DetachHandler';
/**
 * A host that notifies events of detach handlers.
 */
export declare class DetachHost {
    private readonly _onDetach;
    readonly onDetach: import("rxjs").Observable<DetachHandler>;
    private readonly _onRegister;
    readonly onRegister: import("rxjs").Observable<DetachHandler>;
    registerHandler(handler: DetachHandler): void;
}