code: def cleanup_video(self):
          '''
          .. versionchanged:: 0.6.1
              Log terminated video source process ID.
          '''
          if self.video_source_process is not None:
              self.video_source_process.terminate()
              logger.info('Terminated video process: %s',
                          self.video_source_process.pid)
              self.video_source_process = Nonf cleanup_video(self):
          '''
          .. versionchanged:: 0.6.1
              Log terminated video source process ID.
          '''
          if self.video_source_process is not None:
              self.video_source_process.terminate()
              logger.info('Terminated video process: %s',
                          self.video_source_process.pid)
              self.video_source_process = None
docs: .. versionchanged:: 0.6.1
              Log terminated video source process ID.