{motive : Lean.Elab.Command.InductiveElabDescr → Sort u} →
  (t : Lean.Elab.Command.InductiveElabDescr) →
    ((mkInductiveView : Lean.Elab.Modifiers → Lean.Syntax → Lean.Elab.TermElabM Lean.Elab.Command.InductiveElabStep1) →
        motive { mkInductiveView := mkInductiveView }) →
      motive t