How to paginate PointsOfInterestSearch results in MapKit JS?

I created a PointsOfInterestSearch (https://developer.apple.com/documentation/mapkitjs/pointsofinterestsearch) on the frontend using MapKit JS:

const poiSearch = new window.mapkit.PointsOfInterestSearch({
    center: new mapkit.Coordinate(userLocation.lat, userLocation.lng),
    radius: 10000,
});
poiSearch.search((error, results) => {
    console.log("Length of poiSearch:", results.places.length);
    results.places.forEach((place) => {
        console.log("Name:", place.name);
    });
});

The length of results.places is 20. Trying it with a bigger radius also still results in 20.

The docs for PointsOfInterestSearchResponse shows only a places (https://developer.apple.com/documentation/mapkitjs/pointsofinterestsearchresponse) and no options for pagination.

How can I paginate the rest of the results?