/**
 *
 */
import { IDisposable, IDisposableOrSubscription } from './Disposable';
export declare class SingleAssignmentDisposable implements IDisposable {
    private _currentDisposable?;
    private _isDisposed;
    get isDisposed(): boolean;
    get disposable(): IDisposableOrSubscription | null | undefined;
    set disposable(value: IDisposableOrSubscription | null | undefined);
    unsubscribe(): void;
    dispose(): void;
}