docs: def login(self, user, passwd):
          """login user passwd
          Performs the login operation for Security Center, storing the token
          that Security Center has generated for this login session for future
          queries.
          """
          data = self.raw_query('auth', 'login',
                               data={'username': user, 'password': passwd})
          self._token = data["token"]
          self._user = data