docs: def pid(self):
          """Stop managing the current pid."""
          try:
  
              os.remove(self.pidfile)
  
          except IOError:
  
              if not os.path.isfile(self.pidfile):
  
                  return None
  
              LOG.exception("Failed to clear pidfile {0}).".format(self.pidfile))
              sys.exit(exit.PIDFILE_INACCESSIBLE)