{C : Type u} →
  [inst : CategoryTheory.Category.{v, u} C] →
    {X Y Z : C} →
      {f : X ⟶ Y} →
        {g : X ⟶ Z} →
          {s t : CategoryTheory.Limits.PushoutCocone f g} →
            (i : s.pt ≅ t.pt) →
              autoParam (CategoryTheory.CategoryStruct.comp s.inl i.hom = t.inl)
                  CategoryTheory.Limits.PushoutCocone.ext._auto_1 →
                autoParam (CategoryTheory.CategoryStruct.comp s.inr i.hom = t.inr)
                    CategoryTheory.Limits.PushoutCocone.ext._auto_3 →
                  (s ≅ t)