Method override for Automate Domains

If a similar named method  exists in a
high priority domain that will overlay the existing method.
The usecase for this is a user wants to modify a single method from
the ManageIQ domain to the Customer domain. During resolution the
method from higher priority Customer domain will be used.
Wasn't this method just defined up above as well?  Can we share the code somehow, perhaps with an MiqAeEngineHelper in spec/support?