import { FrequencyObservableOptions } from '../types';
/**
 * Observable that emits on every second.
 */
declare function onEverySecond$(
  options?: FrequencyObservableOptions
): import('rxjs').Observable<number>;
/**
 * Observable that emits on every other second.
 */
declare function onEvery2Seconds$(
  options?: FrequencyObservableOptions
): import('rxjs').Observable<number>;
/**
 * Observable that emits every five seconds.
 */
declare function onEvery5Seconds$(
  options?: FrequencyObservableOptions
): import('rxjs').Observable<number>;
export { onEverySecond$, onEvery2Seconds$, onEvery5Seconds$ };