/**
 * Toggles (add/remove) one or multiple class names on a DOM element
 *
 * @param elm - DOM element to toggle class names from
 * @param classNames - Class names to toggle
 * @param force - Force to add/remove the given class names (true = add, false = remove)
 * @return The given `elm`
 */
export default function toggleClass(elm: Element, classNames: string | string[], force?: boolean): Element;