def dynamic_properties(self):
    """Determine which properties are particular to instance of entity.

    Returns:
      Set of names which correspond only to the dynamic properties.
    """
    if self._dynamic_properties is None:
      return []
    return self._dynamic_properties.keys()
dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/ext/db/__init__.py/Expando.dynamic_properties/original