curl --request GET \
  --url https://api.{tenant}.getomneo.com/api/v3/appointment-definitions

{
  "data": [
    {
      "id": 123,
      "handle": "<string>",
      "name": "<string>",
      "description": "<string>",
      "is_published": true,
      "is_archived": true,
      "duration_minutes": 123,
      "buffer_before_minutes": 123,
      "buffer_after_minutes": 123,
      "min_lead_minutes": 123,
      "max_advance_days": 123,
      "slot_interval_minutes": 123,
      "booking_type": "<string>",
      "allow_customer_booking": true,
      "allow_walk_in": true,
      "requires_staff": true,
      "customer_must_select_staff": true,
      "use_staff_from_location": true,
      "max_concurrent_bookings": 123,
      "allow_waitlist": true,
      "allow_queue": true,
      "meta": [
        "<unknown>"
      ],
      "created_target_id": 123,
      "confirmed_target_id": 123,
      "cancelled_target_id": 123,
      "rejected_target_id": 123,
      "reminder_target_id": 123,
      "notify_created_offset_days": 123,
      "notify_created_offset_hours": 123,
      "notify_confirmed_offset_days": 123,
      "notify_confirmed_offset_hours": 123,
      "notify_cancelled_offset_days": 123,
      "notify_cancelled_offset_hours": 123,
      "notify_rejected_offset_days": 123,
      "notify_rejected_offset_hours": 123,
      "notify_reminder_offset_days": 123,
      "notify_reminder_offset_hours": 123,
      "has_booking_questionnaire": true,
      "created_at": "<string>",
      "updated_at": "<string>",
      "normal_hours": [
        {
          "id": 123,
          "appointment_definition_id": 123,
          "day_of_week": "<string>",
          "available_from": "<string>",
          "available_until": "<string>",
          "is_closed": "<string>",
          "created_at": "<string>",
          "updated_at": "<string>"
        }
      ],
      "special_hours": [
        {
          "id": 123,
          "appointment_definition_id": 123,
          "name": "<string>",
          "is_repeating": true,
          "available_from": "<string>",
          "available_until": "<string>",
          "start_at": "<string>",
          "end_at": "<string>",
          "is_closed": "<string>",
          "created_at": "<string>",
          "updated_at": "<string>"
        }
      ],
      "locations": [
        "<unknown>"
      ],
      "staff": [
        {
          "id": 123,
          "appointment_definition_id": 123,
          "staff_id": "<string>",
          "is_active": true,
          "staff": {
            "id": "<string>",
            "first_name": "<string>",
            "last_name": "<string>",
            "email": "<string>",
            "mobile_phone": "<string>",
            "normal_hours": [
              {
                "id": "<string>",
                "day_of_week": "<string>",
                "available_from": "<string>",
                "available_until": "<string>",
                "is_closed": "<string>"
              }
            ],
            "special_hours": [
              {
                "id": "<string>",
                "name": "<string>",
                "is_repeating": "<string>",
                "available_from": "<string>",
                "available_until": "<string>",
                "start_at": "<string>",
                "end_at": "<string>"
              }
            ]
          },
          "created_at": "<string>",
          "updated_at": "<string>"
        }
      ],
      "booking_questionnaire": {
        "id": "<string>",
        "name": "<string>",
        "purpose": "<string>",
        "is_active": "<string>",
        "pages": "<string>"
      }
    }
  ]
}