∀ {C : Type u_1} {D : Type u_2} [inst : CategoryTheory.Category.{v_1, u_1} C]
  [inst_1 : CategoryTheory.Category.{v_2, u_2} D] [inst_2 : CategoryTheory.MonoidalCategory C]
  [inst_3 : CategoryTheory.MonoidalCategory.MonoidalRightAction C D] {d d' : D} (f : d ⟶ d') {Z : D}
  (h :
    CategoryTheory.MonoidalCategory.MonoidalRightActionStruct.actionObj d'
        (CategoryTheory.MonoidalCategoryStruct.tensorUnit C) ⟶
      Z),
  CategoryTheory.CategoryStruct.comp (CategoryTheory.MonoidalCategory.MonoidalRightActionStruct.actionUnitIso d).inv
      (CategoryTheory.CategoryStruct.comp
        (CategoryTheory.MonoidalCategory.MonoidalRightActionStruct.actionHomLeft f
          (CategoryTheory.MonoidalCategoryStruct.tensorUnit C))
        h) =
    CategoryTheory.CategoryStruct.comp f
      (CategoryTheory.CategoryStruct.comp
        (CategoryTheory.MonoidalCategory.MonoidalRightActionStruct.actionUnitIso d').inv h)