ClusteredMarkerLayer bug report

[jbc0708]

Describe the bug
in example file("clusted_geojson.py"), when I changed marker_layers argument,
error happend...

To Reproduce

try to auto center the map on the source

from kivy.base import runTouchApp
from kivy.uix.label import Label
import sys

if __name__ == '__main__' and __package__ is None:
    from os import path
    sys.path.append(path.dirname(path.dirname(path.abspath(__file__))))

from kivy_garden.mapview import MapView, MapMarker, MapMarkerPopup
from kivy_garden.mapview.geojson import GeoJsonMapLayer
from kivy_garden.mapview.clustered_marker_layer import ClusteredMarkerLayer
from kivy_garden.mapview.utils import haversine, get_zoom_for_radius

source = sys.argv[1]

options = {}
layer = GeoJsonMapLayer(source=source)
lon, lat = layer.center
options["lon"] = lon
options["lat"] = lat
min_lon, max_lon, min_lat, max_lat = layer.bounds
radius = haversine(min_lon, min_lat, max_lon, max_lat)
zoom = get_zoom_for_radius(radius, lat)
options["zoom"] = zoom

view = MapView(**options)
view.add_layer(layer)

marker_layer = ClusteredMarkerLayer(
    cluster_radius=200
)
view.add_layer(marker_layer)
count = 0
def create_marker(feature):
    global count
    geometry = feature["geometry"]
    if geometry["type"] != "Point":
        return
    lon, lat = geometry["coordinates"]
    # I want to able to click MapMarker, so cls changed from Marker to MarkerPopup..
    marker_layer.add_marker(lon, lat, cls=MapMarkerPopup)
    # and add to widget in Popup, But error happend.. in below code
    marker_layer.cluster_markers[-1].cls.add_widget(Label(text="Hello"))
    count += 1

layer.traverse_feature(create_marker)
if count:
    print("Loaded {} markers".format(count))

runTouchApp(view)

create marker if they exists

Expected behavior
when I see markerpopup, I will click this and I will show popuped text like "Hello"

Logs/output
Traceback (most recent call last):
File "C:\Users\User\project\MapApp\app.py", line 52, in
layer.traverse_feature(create_marker)
File "C:\Users\User\project\MapApp\env\Lib\site-packages\kivy_garden\mapview\geojson.py", line 254, in traverse_feature
func(feature)
File "C:\Users\User\project\MapApp\app.py", line 47, in create_marker
marker_layer.cluster_markers[-1].cls.add_widget(Label(text="Hello"))
TypeError: MapMarkerPopup.add_widget() missing 1 required positional argument: 'widget'

Platform (please complete the following information):

• OS: Windows 11
• Python version: 3.11.7
• kivy_garden.mapview: 1.0.6

Additional context
If I don't change Mapmarker to MapMarkerPopup, it works fine.