code: def _stream(url, sendinit=None, on_data=print):
      '''internal'''
      cl = WSClient(url, sendinit=sendinit, on_data=on_data)
      return cf _stream(url, sendinit=None, on_data=print):
      '''internal'''
      cl = WSClient(url, sendinit=sendinit, on_data=on_data)
      return cl
docs: internal