code: def convert(self):
          
          try:
              return utils.encode_dict(self.metainfo)
          except ValueError as e:
              raise error.MetainfoError(str(e))
docs: Return :attr:`metainfo` with all keys encoded to :class:`bytes` and all
          values encoded to :class:`bytes`, :class:`int`, :class:`list` or
          :class:`OrderedDict`
  
          :raises MetainfoError: on values that cannot be converted properly