def can_update_objectives(self):
url_path = construct_url('<STR_LIT>',<EOL>self._catalog_idstr)<EOL>return self._get_request(url_path)['<STR_LIT>']['<STR_LIT>']<EOL>
Tests if this user can update Objectives.
        A return of true does not guarantee successful authorization. A
        return of false indicates that it is known updating an Objective
        will result in a PermissionDenied. This is intended as a hint
        to an application that may opt not to offer update operations to
        an unauthorized user.
        return: (boolean) - false if objective modification is not
                authorized, true otherwise
        compliance: mandatory - This method must be implemented.