OptionalattachmentsAttachments to the rich message.
HTML or Markdown content
Format reference is available in the Bot API:
In addition to the above, you can use the following links to reference non-HTTP/s media:
tg://photo?id=XXXtg://video?id=XXXtg://audio?id=XXXwhere XXX is a unique identifier of the media in the attachments map.
OptionalrtlWhether this message should be rendered RTL
OptionalskipWhether to skip automatic entities detection (e.g., URLs, email addresses, username mentions, hashtags, cashtags, bot commands, or phone numbers)
Input rich message that is parsed by the server in the specified format