{α : Type u_1} →
  {β : Type u_2} →
    {inst : TopologicalSpace α} →
      {F : Ctop.Realizer α} →
        {f : β → Set α} →
          [SizeOf α] → [SizeOf β] → [(a : β) → (a_1 : α) → SizeOf (f a a_1)] → LocallyFinite.Realizer F f → ℕ