Basically I find myself establishing Parameters in flows before I write some of the functions

Hi @itay livni, flows with parameters are like Python functions. If you run those flows with unexpected parameters, or don’t supply required parameters, you’re going to get an error. If you want to put the Parameter in your flow but not work with it yet, you could give it a default value

Parameter('x', default=None)

. That way you won’t get an error.

default none works!