let Element_prototype=window.Element.prototype,HTMLElement_prototype=window.HTMLElement.prototype,SVGElement_prototype=window.SVGElement.prototype;!HTMLElement_prototype.hasOwnProperty("classList")||Element_prototype.hasOwnProperty("classList")||SVGElement_prototype.hasOwnProperty("classList")||Object.defineProperty(Element_prototype,"classList",Object.getOwnPropertyDescriptor(HTMLElement_prototype,"classList"));export{};