code: public Account getAccount(final String accountCode) {
          if (accountCode == null || accountCode.isEmpty())
              throw new RuntimeException("accountCode cannot be empty!");
  
          return doGET(Account.ACCOUNT_RESOURCE + "/" + accountCode, Account.class);
      }
docs: Get Account
  <p>
  Returns information about a single account.
  
  @param accountCode recurly account id
  @return account object on success, null otherwise