src/vs/workbench/contrib/notebook/browser/viewModel/notebookViewModelImpl.ts/NotebookViewModel/selectionHandles
class NotebookViewModel:	private set selectionHandles(selectionHandles: number[]) {
		const indexes = selectionHandles.map(handle => this._viewCells.findIndex(cell => cell.handle === handle));
		this._selectionCollection.setSelections(cellIndexesToRanges(indexes), true, 'model');
	}