code: def stop(self):
      sys.stdout = self.stdout
  
file_path: backtrader/backtrader/utils/flushfile.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import sys
label_desc: Use image node_id 4 for calling the StdOutDevNull obj's underlying member method code with example usage: obj.stop() without return types