code: def _update_scope_project_team(self, select_action, user, user_type):
          
          if isinstance(user, str):
              users = self._client._retrieve_users()
              manager_object = next((item for item in users['results'] if item["username"] == user), None)
              if manager_object:
                  url = self._client._build_url('scope', scope_id=self.id)
                  r = self._client._request('PUT', url, params={'select_action': select_action},
                                            data={
                                                'user_id': manager_object['pk']
                                            })
                  if r.status_code != requests.codes.ok:  # pragma: no cover
                      raise APIError("Could not {} {} in Scope".format(select_action.split('_')[0], user_type))
              else:
                  raise NotFoundError("User {} does not exist".format(user))
          else:
              raise TypeError("User {} should be defined as a string".format(user))
docs: Update the Project Team of the Scope. Updates include addition or removing of managers or members.
  
          :param select_action: type of action to be applied
          :type select_action: basestring
          :param user: the username of the user to which the action applies to
          :type user: basestring
          :param user_type: the type of the user (member or manager)
          :type user_type: basestring
          :raises APIError: When unable to update the scope project team.