{motive : Lean.Doc.ModuleDocstringState✝ → Sort u} →
  (t : Lean.Doc.ModuleDocstringState✝¹) →
    ((toState : Lean.Doc.State) →
        (scopedExts :
            Array (Lean.ScopedEnvExtension Lean.EnvExtensionEntry Lean.EnvExtensionEntry Lean.EnvExtensionState)) →
          motive { toState := toState, scopedExts := scopedExts }) →
      motive t