export default class ViewportTracker2D extends PixiTrack { constructor(context: any, options: any); uid: string; removeViewportChanged: any; viewportXDomain: any; viewportYDomain: any; viewportChanged(viewportXScale: any, viewportYScale: any): void; zoomed(newXScale: any, newYScale: any): void; setPosition(newPosition: any): void; } import PixiTrack from './PixiTrack';