import React, { ReactNode } from 'react';
export declare const AlertTypes: ["success", "info", "warning", "error"];
export declare type AlertType = typeof AlertTypes[number];
declare type BannerOffsetType = [number, number];
export declare const allBannerAlertPortals: Map<string, HTMLElement>;
export interface IAlertProps {
    type?: AlertType;
    message?: ReactNode;
    showIcon?: boolean;
    icon?: ReactNode;
    closable?: boolean;
    closeNode?: ReactNode;
    delayOffTime?: number;
    className?: string;
    style?: Record<string, unknown>;
    prefixCls?: string;
    onClose?: () => void;
    extra?: ReactNode;
    banner?: boolean;
    bannerOffset?: BannerOffsetType;
}
declare const Alert: React.FC<IAlertProps>;
export default Alert;