src/vs/workbench/contrib/notebook/browser/diff/diffElementViewModel.ts/SideBySideDiffElementViewModel/getNestedCellViewModel
class SideBySideDiffElementViewModel:	getNestedCellViewModel(diffSide: DiffSide): DiffNestedCellViewModel {
		return diffSide === DiffSide.Original ? this.original : this.modified;
	}