@Override
    public @Nullable Map getExportedCustomDirectEventTypeConstants() {
        Map events = super.getExportedCustomDirectEventTypeConstants();

        events.put(ViroEvents.ON_LOAD_START, MapBuilder.of("registrationName", ViroEvents.ON_LOAD_START));
        events.put(ViroEvents.ON_LOAD_END, MapBuilder.of("registrationName", ViroEvents.ON_LOAD_END));
        events.put(ViroEvents.ON_ERROR, MapBuilder.of("registrationName", ViroEvents.ON_ERROR));

        return events;
    }
VRTAnimatedImageManager for building a {@link VRTAnimatedImage}
corresponding to the ViroAnimatedImage.js control.
android/viro_bridge/src/main/java/com/viromedia/bridge/component/node/control/VRTAnimatedImageManager.java