docs: def _get_url(cls, administration_id: int, resource_path: str):
          """
          Builds the URL to the API endpoint specified by the given parameters.
  
          :param administration_id: The ID of the administration (may be None).
          :param resource_path: The path to the resource.
          :return: The absolute URL to the endpoint.
          """
          url = urljoin(cls.base_url, '%s/' % cls.version)
  
          if administration_id is not None:
              url = urljoin(url, '%s/' % administration_id)
  
          url = urljoin(url, '%s.json' % resource_path)
  
          return url