def push_application(self):
        raise NotImplementedError()
Returns a set of changed files if the watched directory has changed.
dataset/ETHPy150Open getlogbook/logbook/logbook/_fallback.py/StackedObject.push_application--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/tools/devappserver2/mtime_file_watcher.py/MtimeFileWatcher.changes