unknown module issue

So I was twiddling around some third party addons and ran into one who’s default script contained a call to the xbmc module evald. exec(xbmc.evald(….))

I’ve never seen this module/method before and I searched the xbmc source and couldn’t find any reference to it. So I tried to load it on my Kodi 16 and 17 installs and like I expected it said unknown module. My buddy who sent me the addon said it worked fine on his android derived box.

My question to anyone who wants to help is could it be a custom build of kodi on that android box where the maintainer of that build implemented the evald module? Or if anyone knows what is the xbmc.evald module?

Thanks to anyone willing to reply.