import { Observable } from 'rxjs/internal/Observable';
import { NextObserver } from 'rxjs/internal/types';
/**
 * Internal hook that manages subscriptions.
 */
export declare function useRx<T>(observable$: Observable<T>, observer: NextObserver<T>): void;
/**
 * React Debugger for RxJS observables.
 * Subscribes on observable changes and logs all changes in the console.
 *
 * @param observable$
 * @param tag
 */
export declare function useRxDebug<T>(observable$: Observable<T>, tag: string): void;