{C : Type u₁} →
  {inst : CategoryTheory.Category.{v₁, u₁} C} →
    {J : CategoryTheory.GrothendieckTopology C} →
      {A : Type u₂} →
        {inst_1 : CategoryTheory.Category.{v₂, u₂} A} → [SizeOf C] → [SizeOf A] → CategoryTheory.Sheaf J A → ℕ