/**
 * Returns the computed value of a component.
 */
declare function getPropertyValue(element: any, property: string): string;
/**
 * Returns the computed value of an ARC :root property.
 */
declare function getRootValue(property: string): string;
/**
 * Sets the computed value of an ARC :root property.
 */
declare function setRootValue(variable: string, newVal: string): void;
/**
 * Adds a CSS class to the documentElement to prevent a flash of unstyled content (FOUC)
 * and removes it when the document is loaded.
 */
declare function noFOUC(): void;
export { getPropertyValue, getRootValue, setRootValue, noFOUC };