∀ {ι : Type u_1} {A : ι → Type u_2} [inst : (i : ι) → MeasurableSpace (A i)] (μ : (i : ι) → MeasureTheory.Measure (A i))
  [inst_1 : DecidableEq ι] (p : ℝ) (f : ((i : ι) → A i) → ENNReal) (s : Finset ι),
  MeasureTheory.GridLines.T μ p f s = ∫⋯∫⁻_s, f ^ (1 - (↑s.card - 1) * p) * ∏ i ∈ s, (∫⋯∫⁻_{i}, f ∂μ) ^ p ∂μ