src/vs/workbench/contrib/notebook/browser/view/renderers/backLayerWebView.ts/BackLayerWebView/deltaCellOutputContainerClassNames
class BackLayerWebView:	deltaCellOutputContainerClassNames(cellId: string, added: string[], removed: string[]) {
		this._sendMessageToWebview({
			type: 'decorations',
			cellId,
			addedClassNames: added,
			removedClassNames: removed
		});

	}