Get the publicly visible attendees of a Luma event (the featured preview Luma itself shows on the event page, with social handles) plus the total registered guest count. Luma does not expose a full roster to anonymous visitors, so this returns the visible subset, not every attendee.
Input
slugrequired
The event's short Luma slug, e.g. "9n5kxo7k" from luma.com/9n5kxo7k.