type ChangeData = {
    current: URL;
    previous: URL;
};
export interface URLChangeObservableSettings {
    pollInterval?: number;
}
export declare class URLChangeObservable {
    private emitter;
    private pollInterval;
    private urlChanged?;
    constructor(settings?: URLChangeObservableSettings);
    private pollURLChange;
    subscribe(urlChanged: (data: ChangeData) => void): void;
    unsubscribe(): void;
}
export {};
//# sourceMappingURL=index.d.ts.map