{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) → [SizeOf B] → [SizeOf C] → SizeOf (CategoryTheory.Oplax.OplaxTrans.Modification η θ)