∀ {𝒮 : Type u₁} [inst : CategoryTheory.Category.{v₁, u₁} 𝒮]
  {F : CategoryTheory.Pseudofunctor (CategoryTheory.LocallyDiscrete 𝒮ᵒᵖ) CategoryTheory.Cat} [inst_1 : SizeOf 𝒮]
  (base : 𝒮) (fiber : ↑(F.obj { as := Opposite.op base })),
  sizeOf { base := base, fiber := fiber } = 1 + sizeOf base + sizeOf fiber