code: def getcompname(self):
      if self._encoding == AUDIO_FILE_ENCODING_MULAW_8:
          return "CCITT G.711 u-law"
      elif self._encoding == AUDIO_FILE_ENCODING_ALAW_8:
          return "CCITT G.711 A-law"
      else:
          return "not compressed"
  
imports: from collections import namedtuple
  import warnings
label_desc: Use image node_id 12 for calling the Au_read obj's underlying member method code with example usage: obj.getcompname() and returns: str, str, str