How DFE annotation "triggerDFEs"works

#1

The description suggests it only works for compound metrics. Is it true? Do all the child DFEs have to be based on compound metrics?

#2

This is what the docs say… // subset of (compound metric) child DFEs that trigger invalidation triggerDFEs: string

#3

you should be able to refer to any metrics (simple or compound) in DFE annotations