Input File
Common type for all files in Telegram Bot API which can be sent via requests like dev.inmo.tgbotapi.requests.send.media.SendDocument. You may use methods like MPPFile.asMultipartFile when you want to send files from your file system, but you should remember about restrictions[https://core.telegram.org/bots/api#sending-files] in Telegram for bots. In case you wish to send file by its url, use FileId and pass your url as FileId.fileId
See also
ByteArray.asMultipartFile