Talk - text formatting of bot output possible?

Finally I got my php script imported as command/bot in talk and it’s also working.
But the output is simple plain text. Is there any way to use text formatting in the output?
I wrote the script months ago and had it running on my webspace as well where I used HTML to show parts of the output in bold and/or italic without problems. But the talk bot always show the HTML part as text…

No, this is not implemented yet, see