On load event for Leaflet proj4leaflet projected geoJSON layer

Can't find proper event for vector layer like on "load", to be fired when this layer is fuly rendered. I add vector features to a layer in Leaflet using proj4leaflet from JSON object like this

   var geojsonLayer = L.Proj.geoJson(features, {
        'pointToLayer': function (feature, latlng) {
            return L.marker(latlng);
        }
    }).addTo(map);

And this methid does not work

geojsonLayer.on("load", function () {
        console.log(1);
    });

I need a loadend or renderend event for this layer. Is there any?