∀ {α : Type u_1} {ι : Type u_2} {E : Type u_4} {m : MeasurableSpace α} {μ : MeasureTheory.Measure α}
  [inst : PseudoEMetricSpace E] {u : Filter ι} [u.NeBot] [u.IsCountablyGenerated] {f : ι → α → E} {g : α → E},
  MeasureTheory.TendstoInMeasure μ f u g →
    ∃ ns,
      Filter.Tendsto ns Filter.atTop u ∧ ∀ᵐ (x : α) ∂μ, Filter.Tendsto (fun i => f (ns i) x) Filter.atTop (nhds (g x))