fact: Definition transported_comonoid_mor : comonoid_mor_struct L (a,, transported_comonoid) B i.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.Monoidal.Categories UniMath.CategoryTheory.Monoidal.Comonoids.Category UniMath.CategoryTheory.Retracts