def get_updated_value_for_datastore(self, model_instance):
    if self.auto_now:
      return self.now()
    return AUTO_UPDATE_UNCHANGED
Try import all public attributes from module into global namespace.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/db/__init__.py/DateTimeProperty.get_updated_value_for_datastore--crossover with--dataset/ETHPy150Open omangin/multimodal/multimodal/lib/transformations.py/_import_module