import { Task } from "../Task/Task";
export declare type Status = "active" | "inactive";
export declare type EventSubscriber<T> = (value: T) => void | Task<any, any>;
export declare type StatusSubscriber = (status: Status) => void;
export declare type Unsubscriber = () => void;
export declare class Subscription<T> {
    private eventSubscribers_;
    private status_;
    private statusSubscribers_;
    emit(value: T): Task<any, any[]>;
    subscribe(fn: EventSubscriber<T>): Unsubscriber;
    clear(): void;
    onStatusChange(fn: StatusSubscriber): () => void;
    private checkStatus_;
}
//# sourceMappingURL=Subscription.d.ts.map