/**
 * Provides destroy$ observable for subclasses to use .takeUntil(this.destroy$)
 * Avoids having to keep up with so many subscriptions
 */
import { OnDestroy } from '@angular/core';
import { Subject } from 'rxjs';
import * as i0 from "@angular/core";
export declare abstract class RxUnsubscribe implements OnDestroy {
    destroy$: Subject<boolean>;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<RxUnsubscribe, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<RxUnsubscribe>;
}