Could .rename() accept a function?

[mhkeller]

I had a quick use-case where I wanted to lowercase all of my column names and ended up with this:

const table = aq.from(data);

const t = table.rename(
  Object.fromEntries(
    table.columnNames().map(name => [name, name.toLowerCase()])
  ));

Is there a way to do this without having to create a new table object? I was thinking something like this would have been possible:

const table = aq.from(data).rename(t => t.columnNames().map(name => name.toLowerCase()))

Not sure if it makes sense to have the table instance be the argument returned or the output of table.columnNames(). But just generally something where the user doesn't have to break out of the chain would be nice.