import { Observable } from "rxjs";
export declare function toggle<T>(source: Observable<T>): [Observable<T>, Observable<T>];
export declare function toggle<T>(source: Observable<T>, states: 2): [Observable<T>, Observable<T>];
export declare function toggle<T>(source: Observable<T>, states: 3): [Observable<T>, Observable<T>, Observable<T>];
export declare function toggle<T>(source: Observable<T>, states: number): Observable<T>[];