export type LoadScriptCallback = (ev?: Event) => void;
export type LoadScriptOptions = {
    url: string;
    async?: boolean;
    cache?: boolean;
    crossorigin?: string | null;
    defer?: boolean;
};
/**
 * Loads a script dynamically.
 *
 * @param url - The URL of the script to load.
 * @param callbackfn - Optional callbackfn function to be called when the script is loaded or encounters an error.
 *
 * @example
 * console.log(typeof loadScript)
 * console.log(new Promise((resolve) => loadScript('https://example.com/x.js', resolve)) instanceof Promise)
 *
 * @since 1.0.0
 */
declare function loadScript(url: string, callbackfn?: LoadScriptCallback): void;
declare function loadScript(options: LoadScriptOptions, callbackfn?: LoadScriptCallback): void;
export default loadScript;