import * as Rx from "rxjs";
export declare const rateLimit: (limit: number, window: number) => <T>(source$: Rx.Observable<T>) => Rx.Observable<T>;
export declare const groupByTime: (op: (time: number) => Rx.MonoTypeOperatorFunction<any>) => (window: number) => <T>(key: (item: T) => string) => (source$: Rx.Observable<T>) => Rx.Observable<T>;
export declare const rateLimitBy: (limit: number, window: number) => <T>(key: (item: T) => string) => (source$: Rx.Observable<T>) => Rx.Observable<T>;
export declare const debounceBy: (window: number) => <T>(key: (item: T) => string) => (source$: Rx.Observable<T>) => Rx.Observable<T>;
export declare const throttleBy: (window: number) => <T>(key: (item: T) => string) => (source$: Rx.Observable<T>) => Rx.Observable<T>;