def get_ancestor_repository_query(self):
pass<EOL>
Gets the query for a repository.

        Multiple retrievals produce a nested ``OR`` term.

        return: (osid.repository.RepositoryQuery) - the repository query
        raise:  Unimplemented - ``supports_ancestor_repository_query()``
                is ``false``
        *compliance: optional -- This method must be implemented if
        ``supports_ancestor_repository_query()`` is ``true``.*