{motive : Lean.Elab.Tactic.Doc.TacticDoc → Sort u} →
  (t : Lean.Elab.Tactic.Doc.TacticDoc) →
    ((internalName : Lean.Name) →
        (userName : String) →
          (tags : Lean.NameSet) →
            (docString : Option String) →
              (extensionDocs : Array String) →
                motive
                  { internalName := internalName, userName := userName, tags := tags, docString := docString,
                    extensionDocs := extensionDocs }) →
      motive t