docs: public static Balance adaptBalance(ANXWallet anxWallet) {
  
      if (anxWallet
          == null) { // use the presence of a currency String to indicate existing wallet at ANX
        return null; // an account maybe doesn't contain a ANXWallet
      } else {
        return new Balance(
            Currency.getInstance(anxWallet.getBalance().getCurrency()),
            anxWallet.getBalance().getValue(),
            anxWallet.getAvailableBalance().getValue());
      }
    }