{C : Type u₁} →
  [inst : CategoryTheory.Category.{v₁, u₁} C] →
    {D : Type u₂} →
      [inst_1 : CategoryTheory.Category.{v₂, u₂} D] →
        (G : CategoryTheory.Functor C D) →
          [inst_2 : CategoryTheory.Limits.HasTerminal C] →
            [inst_3 : CategoryTheory.Limits.HasTerminal D] → G.obj (⊤_ C) ⟶ ⊤_ D