∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] {J : CategoryTheory.Limits.MulticospanShape}
  {I : CategoryTheory.Limits.MulticospanIndex J C} {t s : CategoryTheory.Limits.Multifork I} (e : t.pt ≅ s.pt)
  (h :
    autoParam (∀ (i : J.L), CategoryTheory.CategoryStruct.comp e.hom (s.ι i) = t.ι i)
      CategoryTheory.Limits.Multifork.ext._auto_1),
  (CategoryTheory.Limits.Multifork.ext e h).hom.hom = e.hom