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Hi all, is it possible to have order-based (nothin...
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a
Hi all, is it possible to have order-based (nothing) dependencies that have can consume a real parameter as well? i.e., 
solid1 -> Nothing, solid2 -> String, solid3(solid1(), solid2())
When I try this I get an error about unmapped parameters, I have a gist that illustrates this issue if that would help.
a
can you send the gist link? i think that would be helpful
a
a
ah so the fix here is to wire the 
Nothing
dep with a 
kwarg
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downstream_consuming_string(real_string, start=upstream_returning_nothing())
the error message could be better here for sure
a
ah, interesting
Thanks!
a
we treat the function signature as the source of truth for the order of args when passed as positional. Since Nothing is explicitly omitted there, it means that 
Nothing
deps basically always have to be passed by keyword when there are other args in the mix
a
The other wrinkle here is that we’d like to use this in a composite scenario as well
ah, nm I think it works there as well, Hmm, no this doesn’t seem to work for composite -> composite dependencies, https://gist.github.com/aherbst-broad/148c643d1bf245809fe854c3fd1a57ee
a
what error do you get for the latter? One problem is that you have an empty composite - it has to have a real solid in it to map that Nothing output from
oops responded to the wrong gist - but here is a working sample https://gist.github.com/aherbst-broad/1c08a76d61055bb5dab9491aec3f75ea#gistcomment-3766557
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