docs: def retrieve_console_log(self, filename=None, dir=None):
          """Retrieves the application console log (standard out and error)
          files for this PE and saves them as a plain text file.
  
          An existing file with the same name will be overwritten.
  
          Args:
              filename (str): name of the created file. Defaults to `pe_<id>_<timestamp>.stdouterr` where `id` is the PE identifier and `timestamp` is the number of seconds since the Unix epoch, for example ``pe_83_1511995995.trace``.
              dir (str): a valid directory in which to save the file. Defaults to the current directory.
  
          Returns:
              str: the path to the created file, or None if retrieving a job's logs is not supported in the version of streams to which the job is submitted.
  
          .. versionadded:: 1.9
          """        
          if hasattr(self, "consoleLog") and self.consoleLog is not None:
              logger.debug("Retrieving PE console log: " + self.consoleLog)
              if not filename:
                  filename = _file_name('pe', self.id, '.stdouterr')
              return self.rest_client._retrieve_file(self.consoleLog, filename, dir, 'text/plain')
  
          else:
              return None