def _clear_cache(self):
    """Clear the cached values."""
    self._lock.acquire()
    try:
      self._initialized = False
      for key in self._defaults:
        self._overrides.pop(key, None)
        try:
          delattr(self, key)
        except __HOLE__:
          pass
    finally:
      self._lock.release()
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/lib_config.py/ConfigHandle._clear_cache