@utilities.arguments_not_none<EOL><INDENT>def get_child_catalogs(self, catalog_id):<DEDENT>
<EOL>if self._catalog_session is not None:<EOL><INDENT>return self._catalog_session.get_child_catalogs(catalog_id=catalog_id)<EOL><DEDENT>return CatalogLookupSession(<EOL>self._proxy,<EOL>self._runtime).get_catalogs_by_ids(<EOL>list(self.get_child_catalog_ids(catalog_id)))<EOL>
Gets the child catalogs of the given ``id``.

        arg:    catalog_id (osid.id.Id): the ``Id`` of the ``Catalog``
                to query
        return: (osid.cataloging.CatalogList) - the child catalogs of
                the ``id``
        raise:  NotFound - a ``Catalog`` identified by ``Id is`` not
                found
        raise:  NullArgument - ``catalog_id`` is ``null``
        raise:  OperationFailed - unable to complete request
        raise:  PermissionDenied - authorization failure
        *compliance: mandatory -- This method must be implemented.*