'Text after button press in Slack

I'm trying to get text to appear after a button press in Slack - any ideas how? They show off the functionality in their documentation but I can't seem to see where they explain how to do it (my implementation is in Python).

enter image description here

The part that says @laura approved this request is what I'm wanting to do.

Thanks.



Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source