import { type ObserverCallback, UmbObserver } from './observer.js';
import type { Observable } from '../../external/rxjs/index.js';
import type { UmbController, UmbControllerAlias, UmbControllerHost } from '../controller-api/index.js';
export declare class UmbObserverController<T = unknown> extends UmbObserver<T> implements UmbController {
    #private;
    get controllerAlias(): UmbControllerAlias;
    constructor(host: UmbControllerHost, source: Observable<T>, callback?: ObserverCallback<T>, alias?: UmbControllerAlias);
    destroy(): void;
}