On a somewhat related note, is it possible to pass Nothing dependancies with direct invocation? I have the

start_after

defined in the input_defs but calling the solid with

start_after=None

gives:

TypeError: cohort_inputs() got an unexpected keyword argument 'start_after'

But when the start_after arg isn’t included then:

dagster.core.errors.DagsterInvalidInvocationError: No value provided for required input "start_after".

This one is a known bug, and a fix should be included for this in next weeks release (sorry you keep running into these issues!)

Whoops sorry should have checked the github, I see the

op

related issue now. Thanks for the heads up