src/vs/workbench/contrib/notebook/browser/view/output/transforms/richTransform.ts/HTMLRendererContrib/render
class HTMLRendererContrib:	render(output: ICellOutputViewModel, item: IOutputItemDto, container: HTMLElement, notebookUri: URI): IRenderOutput {
		const str = getStringValue(item);
		return {
			type: RenderOutputType.Html,
			source: output,
			htmlContent: str
		};
	}