def remove_manager(self, manager):
        """
        Remove a single manager to the scope.

        :param manager: single username to be added to the scope list of managers
        :type manager: basestring
        :raises APIError: when unable to update the scope manager
        """
        select_action = 'remove_manager'

        self._update_scope_project_team(select_action=select_action, user=manager, user_type='manager')
Remove a single manager to the scope.

        :param manager: single username to be added to the scope list of managers
        :type manager: basestring
        :raises APIError: when unable to update the scope manager