src/vs/editor/contrib/linesOperations/linesOperations.ts/InsertLineAfterAction/run
class InsertLineAfterAction:	public run(_accessor: ServicesAccessor, editor: ICodeEditor): void {
		const viewModel = editor._getViewModel();
		if (!viewModel) {
			return;
		}
		editor.pushUndoStop();
		editor.executeCommands(this.id, TypeOperations.lineInsertAfter(viewModel.cursorConfig, editor.getModel(), editor.getSelections()));
	}