∀ {α : Type u_1} {β : Type u_2} {ι : Type u_3} [inst : AddCommMonoid α] {f : ι → β → α} [inst_1 : UniformSpace α]
  [inst_2 : TopologicalSpace β], SummableLocallyUniformly f → HasSumLocallyUniformly f fun x => ∑' (i : ι), f i x