def _GetClientId(self):
    if 'X-Gdata-Client' in self.additional_headers:
      return self.additional_headers['X-Gdata-Client']
    else:
      return None
Set the number of seconds of crossfading.
dataset/ETHPy150Open acil-bwh/SlicerCIP/Scripted/attic/PicasaSnap/gdata/youtube/service.py/YouTubeService._GetClientId--crossover with--dataset/ETHPy150Open beetbox/beets/beetsplug/bpd/__init__.py/BaseServer.cmd_crossfade