/**
 * Options map to load script
 */
export interface LoadScriptOptions {
    /**
     * Type of the script. Defaults to 'text/javascript'.
     */
    type?: string;
    /**
     * If "true" the "async" attribute is added to the new script. Defaults to false.
     */
    async?: boolean;
    /**
     * If "true" the "defer" attribute is added to the new script. Defaults to false.
     */
    defer?: boolean;
    /**
     * Element that should contain the script. Defaults to the parentNode of the currentScript or if missing to document.head.
     */
    placeholder?: HTMLElement;
}
/**
 * Loads the script source.
 *
 * @ignore
 * @param src The script source.
 * @param options The allowed options
 */
export declare const loadScript: (source: string, { async, defer, type, placeholder }?: LoadScriptOptions) => Promise<HTMLScriptElement>;