import { Subscription, Observable, Unsubscribable } from 'rxjs';
import { ObserverSpy } from '.';
import { ObserverSpyConfig } from './observer-spy';
export declare class SubscriberSpy<T> extends ObserverSpy<T> implements Unsubscribable {
    subscription: Subscription;
    constructor(observableUnderTest: Observable<T>, config?: ObserverSpyConfig);
    unsubscribe(): void;
}
export declare class ObserverSpyWithSubscription<T> extends SubscriberSpy<T> {
    constructor(observableUnderTest: Observable<T>);
}
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