{B : Type u_1} →
  {F : Type u_2} →
    {Z : Type u_4} →
      {inst : TopologicalSpace B} →
        {inst_1 : TopologicalSpace F} →
          {proj : Z → B} → [SizeOf B] → [SizeOf F] → [SizeOf Z] → Bundle.Pretrivialization F proj → ℕ