{B : Type u₁} →
  [inst : CategoryTheory.Bicategory B] →
    {C : Type u₂} →
      [inst_1 : CategoryTheory.Bicategory C] →
        {F G : CategoryTheory.OplaxFunctor B C} →
          {η θ : F ⟶ G} →
            {motive : CategoryTheory.Oplax.StrongTrans.Hom η θ → Sort u} →
              (t : CategoryTheory.Oplax.StrongTrans.Hom η θ) →
                ((as : CategoryTheory.Oplax.StrongTrans.Modification η θ) → motive { as := as }) → motive t