export declare function loadScriptStyle({ doc, script, css, }?: {
    doc?: Document;
    script?: {
        type?: string;
        src: string;
        errorMsg?: string;
    };
    css?: {
        type?: string;
        rel?: string;
        href: string;
    };
}): Promise<unknown>;
export declare function loadScript(src: string, cb?: () => void): void;
export declare function loadStyle(href: string): void;