cool, where can I submit it?

I see. I don't think it's supported but I think it would be a great idea for a feature. Maybe Open a Github feature request?

None

Hi @<1639799308809146368:profile|TritePigeon86> , what is the use case for passing multiple callbacks? Why not have it in the same function simply?

I have multiple combinations of functions I want to call (some steps need some of them while others need all of them, and some need non of them). writing a "do_x_than_y" function for every combination of x_y functions seems messy. wrapping it with support for iterable of functions seems more pythonic IMO.