'Given a catalog href returns contained catalog item hrefs'

def _get_catalogitems_hrefs(self, catalog):

    res = self.connection.request(get_url_path(catalog), headers={'Content-Type': 'application/vnd.vmware.vcloud.catalog+xml'}).object
    cat_items = res.findall(fixxpath(res, 'CatalogItems/CatalogItem'))
    cat_item_hrefs = [i.get('href') for i in cat_items if (i.get('type') == 'application/vnd.vmware.vcloud.catalogItem+xml')]
    return cat_item_hrefs
