∀ {I : Type u_1} [inst : AddMonoid I] {C : Type u_3} [inst_1 : CategoryTheory.Category.{u_2, u_3} C]
  [inst_2 : CategoryTheory.MonoidalCategory C]
  [∀ (X₁ X₂ X₃ : CategoryTheory.GradedObject I C), X₁.HasGoodTensorTensor₂₃ X₂ X₃] [inst_4 : DecidableEq I]
  [inst_5 : CategoryTheory.Limits.HasInitial C] (X₁ X₂ : CategoryTheory.GradedObject I C),
  X₁.HasGoodTensorTensor₂₃ CategoryTheory.GradedObject.Monoidal.tensorUnit X₂