code: def _pfp__parse(self, stream, save_offset=False):
          
          if save_offset:
              self._pfp__offset = stream.tell()
  
          res = 0
          for child in self._pfp__children:
              res += child._pfp__parse(stream, save_offset)
          return res
docs: Parse the incoming stream
  
          :stream: Input stream to be parsed
          :returns: Number of bytes parsed