How can i send picture message using ionic.io push?

I am using ionic push service for my app and it is working as expected but i couldn’t able to find any option for sending Picture Messages.
Documented [here] (https://github.com/phonegap/phonegap-plugin-push/blob/master/docs/PAYLOAD.md#picture-messages) in phonegap-plugin-push.

I need this feature also.Please help somebody to get it working.

Can you send the pic in the notifications as base64 data?

I don’t think base64 will help because and i am able to get custom icon by directly sending the url in image key but same is not working for picture.FYI i added some logger in the phonegap push plugin to see what data it is receiver from server and i found it doesn’t contain the picture url that i am sending but it contain the custom image. so i think there is some problem with the rest back-end of ionic or maybe they are not sending the data at all.