{C : Type uC} →
  [inst : CategoryTheory.Category.{uC', uC} C] →
    [inst_1 : CategoryTheory.Limits.HasZeroMorphisms C] →
      {W X Y : C} → [inst_2 : CategoryTheory.Limits.HasBinaryBiproduct X Y] → (X ⟶ W) → (Y ⟶ W) → (X ⊞ Y ⟶ W)