Get invoices for bookings.
== Inventory ==
=== GET /inventory/rooms/offers ===
Get offer based on specified criteria.
=== GET /inventory/rooms/availability ===
Get the availability status of dates.
=== GET /inventory/rooms/calendar ===
Get's per day values from the calendar.
=== POST /inventory/rooms/calendar ===
Modify per day calendar values.
== Properties ==
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