export function add< Target extends EventTarget, Callback extends EventListenerOrEventListenerObject, >( el: Target | Target[], eventName: string, callback: Callback, options?: AddEventListenerOptions | boolean, ): Target export function once< Target extends EventTarget, Callback extends EventListenerOrEventListenerObject, >( el: Target | Target[], eventName: string, callback: Callback, options?: AddEventListenerOptions | boolean, ): Target export function remove< Target extends EventTarget, Callback extends EventListenerOrEventListenerObject, >( el: Target | Target[], eventName: string, callback: Callback, options?: EventListenerOptions | boolean, ): Target