code: def error(self, file, line, msg):
      print("%s:%d %s" % (file, line, msg))
  
imports: from __future__ import generators
  import sys
  import re
  import copy
  import time
  import os.path
label_desc: Use image node_id 3 for calling the Preprocessor obj's underlying member method code with example usage: obj.error(file, line, msg) without return types