Land nicht gefunden (country-not-found)

Das Land mit dem bei der HTTP-Abfrage übergebenen ISO-Code existiert nicht.

Beispiel:

>>> import pprint, requests
>>> api_key = "6809fb00tDfPWbTVNvyeGxFQSFvNYSPTwZybcEQTBsSeMLwVeYZauwSKrEuuvxjqcdqygkoPoQJTJClxdUnSPhenetVXBzJeWI"
>>> response = requests.get(
...     "https://my.living-apps.de/rest/countries/XX",
...     headers={
...         "Accept": "application/json",
...         "X-API-KEY": api_key,
...     },
... )
>>> pprint.pprint(response.json())
{'detail': 'The country `https://my.living-apps.de/rest/countries/XX` does not '
           'exist.',
 'status': 404,
 'title': 'Country not found',
 'type': 'https://my.living-apps.de/docs/REST-Service_error_country_not_found.html',
 'url': 'https://my.living-apps.de/rest/countries/XX'}