def _GetClientId(self):
    if 'X-Gdata-Client' in self.additional_headers:
      return self.additional_headers['X-Gdata-Client']
    else:
      return None
Getter for Client Id property.
dataset/ETHPy150Open acil-bwh/SlicerCIP/Scripted/attic/PicasaSnap/gdata/youtube/service.py/YouTubeService._GetClientId