In most of our daily work, it is required to execute utility functions that we can program in javascript, python, c#.
But you can not always have a computer on 24*7 to run when power automate runs, it is required that in the same power automate can be added functions with specific tasks and make use of some libraries, which are able to be implemented at runtime of the flow.
Something similar to what azure functions already does but in power automate.