{B : Type u₁} →
  [inst : CategoryTheory.Bicategory B] →
    {C : Type u₂} →
      [inst_1 : CategoryTheory.Bicategory C] →
        {D : Type u₃} →
          [inst_2 : CategoryTheory.Bicategory D] →
            CategoryTheory.OplaxFunctor B C → CategoryTheory.OplaxFunctor C D → CategoryTheory.OplaxFunctor B D