module Pandora.Paradigm.Structure (Nonempty, module Exports) where import Pandora.Paradigm.Structure.Stack as Exports import Pandora.Paradigm.Basis.Cofree (Cofree) import Pandora.Paradigm.Junction.Transformer (type (:>:)) type family Nonempty structure a :: * where Nonempty (Cofree :>: t) a = Cofree t a