src/vs/workbench/contrib/notebook/browser/contrib/clipboard/notebookClipboard.ts/cellRangeToViewCells
function cellRangeToViewCells(viewModel: NotebookViewModel, ranges: ICellRange[]) {
	const cells: ICellViewModel[] = [];
	ranges.forEach(range => {
		cells.push(...viewModel.getCells(range));
	});

	return cells;
}