∀ {B : Type u₁} [inst : CategoryTheory.Bicategory B] {C : Type u₂} [inst_1 : CategoryTheory.Bicategory C]
  (self : CategoryTheory.OplaxFunctor B C) {a b : B} (f : a ⟶ b),
  self.map₂ (CategoryTheory.Bicategory.rightUnitor f).hom =
    CategoryTheory.CategoryStruct.comp (self.mapComp f (CategoryTheory.CategoryStruct.id b))
      (CategoryTheory.CategoryStruct.comp (CategoryTheory.Bicategory.whiskerLeft (self.map f) (self.mapId b))
        (CategoryTheory.Bicategory.rightUnitor (self.map f)).hom)