/// <reference types="react" />
import * as React from 'react';
import { Ad, AdProps } from './ad';
export interface TimeRefreshAdProps {
    id: string;
    interval: number;
}
export interface TimeRefreshAdState {
    refreshCount: number;
}
/**
 * Refresh ad by interval
 *
 * Usage:
 *   <TimeRefreshAd id="div-id-1" interval={30} />
 *
 * ^ Above example will refresh the ad every 30s automatically.
 */
export declare class TimeRefreshAd extends React.Component<TimeRefreshAdProps, TimeRefreshAdState> {
    private timer;
    constructor(props: TimeRefreshAdProps);
    componentDidMount(): void;
    shouldComponentUpdate(nextProps: TimeRefreshAdProps, nextState: TimeRefreshAdState): boolean;
    componentDidUpdate(prevProps: TimeRefreshAdProps): void;
    componentWillUnmount(): void;
    render(): React.ComponentElement<Readonly<{
        children?: React.ReactNode;
    }> & Readonly<AdProps>, Ad>;
    private clearTimer();
    private resetTimer();
}