Can't figure out how to pass slots to renderComponent (svelte)

[c-kirkeby]

I've created a small example based on the Basic Table example:

https://www.sveltelab.dev/szdwcb6j35n47bd

I try to pass a slot value here of slot: info.getValue() because I can see it's available on the type but the value just ends up in a HTML prop called "slot" like this:

<span slot="tanner"></span>

Any idea how I can actually pass data to the slot?