import React from 'react';
interface IScript {
    src: string;
    onload?: ((boolean: any) => void) | null;
    async?: boolean;
}
/**
 * 动态加载js
 * @param src 相对地址
 * @param onload 加载回调
 * @param async 是否异步加载，默认异步
 */
export declare const loadScript: (src: IScript['src'], onload?: IScript['onload'], async?: boolean, options?: {
    type?: string;
    charset?: string;
    id?: string;
}) => (() => void) | undefined;
export declare function AsyncScript(src: any): Promise<unknown>;
export declare function loadScriptContent(content: string, onLoad?: IScript['onload']): () => void;
/**
 * 动态注入外部脚本
 * @param src 脚本地址
 * @param onload 回调函数
 * @param async 是否异步加载
 * @constructor
 */
export declare const Script: React.FC<IScript>;
export {};