Use onError to change an application error into a TRPCError?

  onError({error}) {
    if (error instanceof AccountLimitError){
      error = new TRPCError({ code: 'UNAUTHORIZED', message:error.message })
    }
  }

  onError({error}) {
    if (error instanceof AccountLimitError){
      const trpcError = new TRPCError({ code: 'UNAUTHORIZED', message:error.message })
      error = Object.assign(error, trpcError)
    }
  }