How to post sticker (not emoticon) using keyboard or ascii etc

I have a couple of bots that can post on FB, and can obviously post emoticons (I just copy-paste the emoticons, or type their shortcut like : ) for smiley .

Is there any way to post the FB stickers (I mean the large stickers, not the regular emoticons), like you can when using FB on a browser or on the mobile app?
Any ascii code or keyboard shortcut etc., so that I can copy it to my message and the bot will post it?