export class Platform { set(platform: any): void; dispose(): void; } export const PLATFORM: Platform; export let $URL: URL; export let $atob: Window['atob']; export let $Blob: Blob; export let $window: Window; export let $document: Document; export let $DOMParser: DOMParser; export let $TextDecoder: TextDecoder; export let $XMLHttpRequest: XMLHttpRequest; export let $OffscreenCanvas: OffscreenCanvas; export let $HTMLCanvasElement: HTMLCanvasElement; export let $createImageBitmap: Window['createImageBitmap']; export let $cancelAnimationFrame: Window['cancelAnimationFrame']; export let $requestAnimationFrame: Window['requestAnimationFrame']; export let $defaultWebGLExtensions: Object;