code: def disco(version, co, out=None, is_pypy=False):
      
  
      assert iscode(co)
  
      # store final output stream for case of error
      real_out = out or sys.stdout
      print('# Python %s' % version, file=real_out)
      if co.co_filename:
          print('# Embedded file name: %s' % co.co_filename,
                file=real_out)
  
      scanner = get_scanner(version, is_pypy=is_pypy)
  
      queue = deque([co])
      disco_loop(scanner.ingest, queue, real_out)
docs: diassembles and deparses a given code block 'co'