docs: def client_unenroll(self, client):
          """
          Unenroll a client.  Uses DELETE to /clients/<client> interface.
  
          :Args:
              * *client*: (str) Client's ID
          """
          client = self._client_id(client)
          response = self._delete(url.clients_id.format(id=client))
          self._check_response(response, 204)