export interface ObjectUnsubscribedError extends Error {
}
export interface ObjectUnsubscribedErrorCtor {
    new (): ObjectUnsubscribedError;
}
/**
 * An error thrown when an action is invalid because the object has been
 * unsubscribed.
 *
 * @see {@link Subject}
 * @see {@link BehaviorSubject}
 *
 * @class ObjectUnsubscribedError
 */
export declare const ObjectUnsubscribedError: ObjectUnsubscribedErrorCtor;