type scrollVolumeViewportType = { viewportId: string; delta: number; }; const scrollVolumeViewport = async (page, viewportId, delta) => { await page.evaluate( ({ services, viewportId, delta }: withTestTypes) => { const { cornerstoneViewportService } = services; const viewport = cornerstoneViewportService.getCornerstoneViewport(viewportId) as any; viewport.scroll(delta); }, { viewportId, delta, services: await page.evaluateHandle('window.services') } ); }; export { scrollVolumeViewport };