import { Api } from "https://deno.land/x/grammy@v1.13.0/core/api.ts";
Use this method to upload a .PNG file with a sticker for later use in createNewStickerSet and addStickerToSet methods (can be used multiple times). Returns the uploaded File on success.
Parameters
png_sticker: InputFile
PNG image with the sticker, must be up to 512 kilobytes in size, dimensions must not exceed 512px, and either width or height must be exactly 512px.
optional
signal: AbortSignalOptional AbortSignal
to cancel the request
Official reference: https://core.telegram.org/bots/api#uploadstickerfile