code: def __str__(self):
      message = Exception.__str__(self)
      if self.location:
          path, line, column = self.location
          return "%s:%d:%d: %s" % (path, line, column, message)
      else:
          return message
  
label_desc: Use image node_id 2 for calling the VoltLibError obj's underlying member method code with example usage: obj.__str__() and returns: unknown, message