fact: Definition insert {E d} `{(mapE d) -< E} : K -> V -> itree E unit := embed Insert.
imports: ExtLib(Core.RelDec) ITree(Basics.Basics Basics.CategoryOps Basics.CategoryKleisli Basics.Monad Indexed.Function Indexed.Sum Core.ITreeDefinition Core.Subevent Interp.Interp Interp.Handler Events.State)