docs: public static Wallet adaptAccountInfo(List<BitflyerBalance> balances) {
      List<Balance> adaptedBalances = new ArrayList<>(balances.size());
  
      for (BitflyerBalance balance : balances) {
        adaptedBalances.add(
            new Balance(
                Currency.getInstance(balance.getCurrencyCode()),
                balance.getAmount(),
                balance.getAvailable()));
      }
  
      return new Wallet(adaptedBalances);
    }