{C : Type u_1} →
  {inst : CategoryTheory.Category.{v_1, u_1} C} →
    {D : Type u_2} →
      {inst_1 : CategoryTheory.Category.{v_2, u_2} D} →
        (G : CategoryTheory.Functor C D) →
          {V U : D} → (f : V ⟶ U) → [SizeOf C] → [SizeOf D] → SizeOf (CategoryTheory.Presieve.CoverByImageStructure G f)