import { AnyEvent } from "../_interfaces";
import { EventStream } from "../EventStream";
/**
 * Polls given function with given interval. Function should return plain values
 * or `F.Event` objects. Polling occurs only when there are subscribers to the stream.
 * Polling ends permanently when `f` returns `F.End`.
 *
 * @param interval - Polling interval in milliseconds
 * @param f - Function that will be called on each tick
 *
 * @example
 *
 * const nowEverySec = F.fromPoll(1000, () => Date.now())
 *
 * @public
 */
export declare const fromPoll: CurriedFromPoll;
interface CurriedFromPoll {
    <ValueType>(interval: number, f: () => ValueType | AnyEvent<ValueType>): EventStream<ValueType>;
    (interval: number): <T>(f: () => T | AnyEvent<T>) => EventStream<T>;
}
export {};