def has_parent_repositories(self, repository_id=None):
return<EOL>
Tests if the ``Repository`` has any parents.

        :param repository_id: a repository ``Id``
        :type repository_id: ``osid.id.Id``
        :return: ``true`` if the repository has parents, ``false`` otherwise
        :rtype: ``boolean``
        :raise: ``NotFound`` -- ``repository_id`` is not found
        :raise: ``NullArgument`` -- ``repository_id`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

        *compliance: mandatory -- This method must be implemented.*