Footer customization does not appear to work as described in docs?

[douglasg14b]

Copy/pasting the code in the example here Footer Customization ends up with a data table with no footer.

It looks like it's trying to use a default slot, but in the component doesn't appear to have one? I did find the body-append and pagination slots. However the pagination slot appears to be non-functional.

However... using body-append seems to affect the table styling and causes the first column to expand to fill available space.

With body-append

Without:

[douglasg14b]

Kind of at a loss of how to customize the pagination :(