∀ {F : Type u_1} {α : Type u_2} {β : Type u_3} [inst : TopologicalSpace α] [inst_1 : TopologicalSpace β]
  [inst_2 : FunLike F α β] [ContinuousMapClass F α β] (f : F) (s : Set α) (a : α), ContinuousWithinAt (⇑f) s a