src/vs/workbench/contrib/notebook/browser/viewModel/baseCellViewModel.ts/BaseCellViewModel/lineNumbers
class BaseCellViewModel:	set lineNumbers(lineNumbers: 'on' | 'off' | 'inherit') {
		if (lineNumbers === this._lineNumbers) {
			return;
		}

		this._lineNumbers = lineNumbers;
		this._onDidChangeState.fire({ cellLineNumberChanged: true });
	}