export declare const postFixID: string;
export declare const globalStylesID: string;
export declare class Stylesheets {
    static getGlobalSheet(root?: HTMLElement | ShadowRoot): CSSStyleSheet;
    static installRule(name: string, css: string, root?: HTMLElement | ShadowRoot): string;
    static addRule(element: HTMLElement, name: string, css: string, root?: HTMLElement | ShadowRoot): string;
}
//# sourceMappingURL=Stylesheets.d.ts.map