Want to have multiple geoJson Overlay on leaflet map

based on folium Timestamped GeoJSON macro i want to have 2 geoJSON Layer on one map to have it selectable via the layerControl. But actually it creates two time sliders and it is not selectable via the layerControl.

On the following way both layers were added to the map:

L.timeDimension.layer.geoJson(geoJsonLayer,
                {updateTimeDimension: false,
                }).addTo(base_map)

The existend folium code is now taken layer_name and the layer object of all children from the parent map (base_map). And to have the geoJSON as an overlay I guess I need to define a layer_name. But this property is not available?!
Any ideas or solutions?

Bildschirmfoto vom 2019-04-21 17-57-53

Want to have multiple geoJson Overlay on leaflet map