import * as Observable from "./Observable/index.js";
export { Subject as t };
/**
 * A `Subject` is both an observable and an observer. A subject can be used to
 * multicast an observable.
 *
 * @example
 *
 * const subject = new Subject<number>();
 *
 * subject.next(1);
 * subject.subscribe(console.log);
 * subject.next(2); // logs the value 2
 */
export declare class Subject<T> implements Observable.ObservableLike<T> {
    protected failure?: unknown;
    protected observers: Observable.Observer<T>[];
    protected state: Observable.State;
    /**
     * Transforms the subject into a hot observable.
     */
    asObservable(): Observable.t<T>;
    complete(): void;
    error(error: unknown): void;
    next(value: T): void;
    subscribe(observerOrNext?: Observable.Observer<T> | ((value: T) => void)): Observable.Subscription;
}
export declare function init<T>(): Subject<T>;
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