def user_id(self):
    return self.__user_id
Test Visualization validation
dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/api/users.py/User.user_id--crossover with--dataset/ETHPy150Open wrobstory/vincent/tests/test_vega.py/TestVisualization.test_validation