def keys_to_text(self, models):
        if(not is_list_type(models)):
            models = [models]
        return unicode(",".join([str(model.key()) for model in models]))
Test the ability to update a file's content from a repository.
dataset/ETHPy150Open jahlborn/appengine-rest-server/src/main/python/rest/__init__.py/Dispatcher.keys_to_text--crossover with--dataset/ETHPy150Open sigmavirus24/github3.py/tests/integration/test_repos_repo.py/TestContents.test_update