OptionalemojiOptional. Emoji associated with the sticker; only for just uploaded stickers
File to send. Pass a file_id to send a file that exists on the Telegram servers (recommended), pass an HTTP URL for Telegram to get a .WEBP sticker from the Internet, or pass "attach://<file_attach_name>" to upload a new .WEBP, .TGS, or .WEBM sticker using multipart/form-data under <file_attach_name> name. More information on Sending Files: https://core.telegram.org/bots/api#sending-files
Type of the result, must be sticker
Represents a sticker file to be sent.