Retrieve general booking appointment hours

Hey everyone, I am trying to retrieve the general booking appointment hours in the code, but i can't find a way to do it. I tried the method below, but the schedules.availability object that is returned is empty :

import { resources } from "wix-bookings-backend";

//

export function getBusinessSchedule() {
    return resources.queryResourceCatalog()
        .eq("slugs.name", "business")
        .find()
        .then(async (results) => {
            return results.items[0];
        });
}

Returns :

{
  "resource": {
    "_id": "3e09f698-c511-4a8a-895a-fbb9ab26fa02",
    "name": "business",
    "tags": [
      "business"
    ],
    "scheduleIds": [
      "3120dee9-7e01-4e0c-b064-e53cb11375cb"
    ],
    "status": "UPDATED"
  },
  "schedules": [
    {
      "availability": {},
      "_id": "3120dee9-7e01-4e0c-b064-e53cb11375cb",
      "scheduleOwnerId": "3e09f698-c511-4a8a-895a-fbb9ab26fa02"
    }
  ],
  "slugs": [
    {
      "_createdDate": "Wed Apr 14 2021 05:08:09 GMT+0800 (heure de Singapour)",
      "name": "business"
    }
  ]
}

Thank you !