Serializable OverrideModules?

[alex-norton]

We have a workflow where we use Serializable Modules to inject transforms into our Spark jobs. Some of these transforms have dependencies that we want to inject as serializable mocks. It would be great to be able to use Modules.override the dependencies, but because this output is not Serializable even when all the base modules and override modules are serializable, we have to hack around it.

Would it be possible to add a Modules.override implementation that supports serializable modules?