/**
 * @param {CSSStyleDeclaration} computedStyle
 * @param {string} property
 */
export function getPropertyValueNumber(computedStyle: CSSStyleDeclaration, property: string): number;
/**
     * @param {Element} element
     * @param {string} prop
     */
export function getStyle(element: Element, prop: string): number;
/**
 * @param {Element} element
 * @param {string} prop
 */
export function getPseudoStyle(element: Element, prop: string, pseudo?: string): number;