{motive : Mathlib.Tactic.DeprecationInfo✝ → Sort u} →
  (t : Mathlib.Tactic.DeprecationInfo✝¹) →
    ((module decl : Lean.Name) →
        (rgStart rgStop : Lean.Position) →
          (since : String) →
            motive { module := module, decl := decl, rgStart := rgStart, rgStop := rgStop, since := since }) →
      motive t