docs: public CoinbaseTransaction sendMoneyCoinbaseRequest(CoinbaseSendMoneyRequest transactionRequest)
        throws IOException {
  
      final CoinbaseTransaction pendingTransaction =
          coinbase.sendMoney(
              new CoinbaseTransaction(transactionRequest),
              exchange.getExchangeSpecification().getApiKey(),
              signatureCreator,
              exchange.getNonceFactory());
      return handleResponse(pendingTransaction);
    }