docs: def _lint(self):
          """Run linter in a subprocess."""
          command = self._get_command()
          process = subprocess.run(command, stdout=subprocess.PIPE,  # nosec
                                   stderr=subprocess.PIPE)
          LOG.info('Finished %s', ' '.join(command))
          stdout, stderr = self._get_output_lines(process)
          return self._linter.parse(stdout), self._parse_stderr(stderr)