Hi all. How would one model a fan-in within a composite solid? Unlike in the fan-in-fan-out example, it seems like you can’t return a single output that is a collection of

SolidOutputHandle

’s from a composite solid, but you can make an identity

lambda_solid

and return the output of that.

ya we only model “fan-in” on inputs currently, so you have correctly identified the limitation and probably best workaround. Your other option would be to have the composite map all its outputs and then collect them and fan them in where you use it.

Done: https://github.com/dagster-io/dagster/issues/3646