How to change the sticker in the bot?? Edit Stickers Telegram?

Question

Bots

Guys, I conceived some cool projects in a row, telegram bots. I’m doing it in flow xo (I have experience in messaging there. I don’t want to yet. I don’t have time, sorry. If anything). I slowed down specifically. It's about the EDIT Sticker message. I need the sticker to change (or PNG, or whatever. BUT the main thing is WITHOUT the background), in Flow .. there is no "change sticker" adaptation. you can take a photo (not that movie. in general, everything is in jpeg, this white background .. ugliness right away. based on the idea), you can document (I tried all formats, no way). I suspect that this is due to editing the PREVIEW, or rather the impossibility of this editing. Can you tell me something?
In flow xo it is possible to send requests directly to JSON - will that help? maybe there is an example?
Thanks in advance for the replies!