declare module '@novnc/novnc/core/util/browser' { export let isTouchDevice: boolean; export let dragThreshold: number; export const supportsCursorURIs: boolean; export const hasScrollbarGutter: boolean; export function isMac(): boolean; export function isWindows(): boolean; export function isIOS(): boolean; export function isSafari(): boolean; export function isFirefox(): boolean; }