                                                                                                      It would be nice to allow a trailing comma in commands like the example below.  That would make it easier to rearrange the order or to comment out lines without needing to figure out whether the commas need adjusting.\n\n```\ndiamonds %&gt;%\n  group_by(color, clarity) %&gt;%\n  summarise(\n    depth = mean(depth),\n    price = mean(price),\n    carat = mean(carat),  #  &lt;-- trailing comma here currently 