UploadStickerFile constructor
      const
      UploadStickerFile({ 
    
- required int userId,
- required StickerFormat stickerFormat,
- required InputFile sticker,
Uploads a file with a sticker; returns the uploaded file
Implementation
const UploadStickerFile({
  required this.userId,
  required this.stickerFormat,
  required this.sticker,
});