type ElementStyles = {
    [elementQuerySelector: string]: CSSStyleDeclaration;
};
declare class StyleUtil {
    static instance: StyleUtil;
    elementStyles: ElementStyles;
    styleElement: HTMLStyleElement;
    constructor();
    init(): void;
    update(elementQuerySelector: string, style: CSSStyleDeclaration | string): void;
    remove(elementQuerySelector: string, styleKey: string): void;
    refresh(): void;
}
export { type StyleUtil as StyleUtilType };
declare const _default: StyleUtil;
export default _default;