code: def description(self):
          
  
          name = None
          try:
              name = self._TYPE_NAMES[self.audioObjectType]
          except IndexError:
              pass
          if name is None:
              return
          if self.sbrPresentFlag == 1:
              name += "+SBR"
          if self.psPresentFlag == 1:
              name += "+PS"
          return text_type(name)
docs: string or None if unknown