@spec lookup(
  Inttegro.Client.t(),
  Inttegro.BalanceTransactions.LookupBalanceTransactionRequest.t(),
  keyword()
) ::
  {:ok, Inttegro.BalanceTransactions.BalanceTransaction.t()}
  | {:error, Exception.t()}

@spec page(
  Inttegro.Client.t(),
  Inttegro.BalanceTransactions.PageBalanceTransactionsRequest.t(),
  keyword()
) ::
  {:ok, Inttegro.BalanceTransactions.BalanceTransactionPage.t()}
  | {:error, Exception.t()}