src/vs/workbench/contrib/notebook/browser/viewModel/baseCellViewModel.ts/BaseCellViewModel/deltaModelDecorations
class BaseCellViewModel:	deltaModelDecorations(oldDecorations: readonly string[], newDecorations: readonly model.IModelDeltaDecoration[]): string[] {
		oldDecorations.forEach(id => {
			this.removeModelDecoration(id);
		});

		const ret = newDecorations.map(option => {
			return this.addModelDecoration(option);
		});

		return ret;
	}