{α : Type} →
  {motive : Lean.Server.ServerRequestResponse α → Sort u} →
    (t : Lean.Server.ServerRequestResponse α) →
      t.ctorIdx = 1 →
        ((code : Lean.JsonRpc.ErrorCode) →
            (message : String) → motive (Lean.Server.ServerRequestResponse.failure code message)) →
          motive t