# announcements

Binh Pham

05/20/2020, 7:56 AM
Hi, can I have solid dependencies without having to pass the result as a parameter? For example, I want solid_b to execute after solid_a if solid_a succeeds. Solid_a doesn't return anything and solid_b doesn't need anything from solid_a.

ezechiel syx

05/20/2020, 8:49 AM
They have type Nothing specifically for what you are asking. You would make solid_a output Nothing and make solid_b take Nothing as an input.
I much prefer the use of dagster.Any since you can't mix dagster.Nothing in lists