code: def pprint(self):
          
  
          s = u"ASF (%s) %d bps, %s Hz, %d channels, %.2f seconds" % (
              self.codec_type or self.codec_name or u"???", self.bitrate,
              self.sample_rate, self.channels, self.length)
          return s
docs: Returns:
              text: a stream information text summary