Public API - Include option for reservations

"It would be great to add another include option for reservations on the API; so I can detect checkouts for today; something like current=true where it shows just reservations for checkin or checkout today only; this way I can action some things at checkout for the guest, its a bit hard to otherwise find a checkout for today as I'd have to muddle with the start/end date in my query and then do conditional statements on the date etc"