code: public Map<String, BigDecimal> getKrakenBalance() throws IOException {
  
      KrakenBalanceResult balanceResult =
          kraken.balance(
              exchange.getExchangeSpecification().getApiKey(),
              signatureCreator,
              exchange.getNonceFactory());
      return checkResult(balanceResult);
    }
docs: To avoid having to map to Kraken currency codes (e.g., ZUSD) use {@link
  KrakenAccountService#getAccountInfo} instead.
  
  @return Map of Kraken Assets to account balance
  @throws IOException