None input is not allowed (Workflow related)

[guzuligo]

I'm trying to make a fixable workflow where if no input provided, you get default. But, I get assertion errors for empty inputs.
Probable add an option to bypass missing input assertions. Maybe add a boolean to the node to tell if it is set, or just send none to let the workflow handle it.

[Acly]

Allowing layer input to be optional could be nice.

A workaround would be to create a Parameter node for the boolean input.