Sort u →
  {u : Lean.Level} →
    {α : Q(Type u)} →
      {a : Q(CommSemiring «$α»)} →
        {e : Q(«$α»)} →
          Mathlib.Tactic.Ring.ExSum a e →
            {u' : Lean.Level} →
              {α' : Q(Type u')} →
                {a' : Q(CommSemiring «$α'»)} → {e' : Q(«$α'»)} → Mathlib.Tactic.Ring.ExSum a' e' → Sort u