(motive : Lean.Elab.Term.LetIdDeclView → Sort u_1) →
  (x : Lean.Elab.Term.LetIdDeclView) →
    ((id : Lean.Syntax) →
        (binders : Array Lean.Syntax) →
          (type value : Lean.Syntax) → motive { id := id, binders := binders, type := type, value := value }) →
      motive x